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Journal articles on the topic 'Solvent extraction processes'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

STEVENS, GEOFFREY W., and JILSKA M. PERERA. "Kinetics of Solvent Extraction Processes." Mineral Processing and Extractive Metallurgy Review 17, no. 1-4 (1997): 205–26. http://dx.doi.org/10.1080/08827509708914148.

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2

Lezoul, Nour El Houda, Mohamed Belkadi, Fariborz Habibi, and Fabián Guillén. "Extraction Processes with Several Solvents on Total Bioactive Compounds in Different Organs of Three Medicinal Plants." Molecules 25, no. 20 (2020): 4672. http://dx.doi.org/10.3390/molecules25204672.

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The extraction of secondary metabolites by water, MeOH:water (8:2) containing NaF, methanol, ethanol and acetone (all of them diluted (7:3) in water)from the different parts (leaves, flowers, stems and roots) of Passiflora caerulea L., Physalis peruviana L. and Solanum muricatum Aiton via decoction and maceration methods was studied. The highest extraction yields were recorded by methanol for decoction and acetone for maceration. The total polyphenol content (TPC) obtained by decoction had the highest TPC contents, and MeOH containing NaF was the best solvent for the extraction of TPC. Macerat

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3

De Brabander, Pieter, Evelien Uitterhaegen, Ellen Verhoeven, Cedric Vander Cruyssen, Karel De Winter, and Wim Soetaert. "In Situ Product Recovery of Bio-Based Industrial Platform Chemicals: A Guideline to Solvent Selection." Fermentation 7, no. 1 (2021): 26. http://dx.doi.org/10.3390/fermentation7010026.

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In situ product recovery (ISPR), in the form of an extractive fermentation process, can increase productivity and product titers in the sustainable production of platform chemicals. To establish a guideline for the development of industrially relevant production processes for such bio-based compounds, a wide screening was performed, mapping the potential of an extensive range of solvents and solvent mixtures. Besides solvent biocompatibility with Saccharomyces cerevisiae, distribution coefficients of three organic acids (protocatechuic acid, adipic acid and para-aminobenzoic acid) and four fra

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4

Mohammad Azmin, Siti Nuurul Huda, Nor Alafiza Yunus, Sharifah Rafidah Wan Alwi, and Mohd Shukri Mat Nor. "Stability Analysis of Binary Solvent Mixtures for Herbal Phytochemical Extraction." Journal of Tropical Resources and Sustainable Science (JTRSS) 5, no. 3 (2017): 128–33. http://dx.doi.org/10.47253/jtrss.v5i3.657.

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Most of the extraction processes of herbal phytochemicals use solvent mixtures as a phytochemical transfer mediums. It is very important to predict the stability of solvent mixtures before it is used to extract herbal phytochemicals. In order to prevent any disturbance in the herbal extraction, the solvent mixtures must be in a single liquid phase (miscible to each other). In this study, the stabilities of five binary solvents (methanol-water, methanol-ethyl acetate, methanol-acetic acid, methanol-n-propionaldehyde, and methanol-isobutyraldehyde mixtures) that could be used in the current extr

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5

Zhang, Cheng Long, Jing Wei Wang, Jian Feng Bai, and Wen Jie Wu. "Life Cycle Assessment of the Bio-Hydrometallurgical Process of Recycling Copper from Printed Circuit Boards Scraps." Advanced Materials Research 156-157 (October 2010): 929–32. http://dx.doi.org/10.4028/www.scientific.net/amr.156-157.929.

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Recently, a few studies have been undertaken for the extracting of metallic copper from electronic scrap/printed circuit boards by bioleaching - solvent extraction-electrowinning. Results of the present investigation indicate that bioleaching-solvent extraction-electrowinning could be a new cleaner hydrometallurgy route for recovery copper from the PCBs.The life cycle assessment method was used to investigate the environmental impacts of the new biohydrometallurgical process of production of metallic copper. The energy consumption，greenhouse effect，acidification in the new processes is studied

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6

Permadi, Asep Kurnia, Egi Adrian Pratama, Andri Luthfi Lukman Hakim, Alfanda Kurnia Widi, and Doddy Abdassah. "The Effect of Carbonyl and Hydroxyl Compounds Addition on CO2 Injection through Hydrocarbon Extraction Processes." Applied Sciences 11, no. 1 (2020): 159. http://dx.doi.org/10.3390/app11010159.

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CO2 miscible flooding occurs when injection pressure is higher than the minimum miscibility pressure (MMP) which can exceed the fracture pressure. Co-solvents are expected to reduce the MMP by interacting with various hydrocarbons that depend on the polarity and intermolecular forces of solvent and oil. However, there are limited studies that have investigated co-solvent performance in CO2 injection through an extraction process based on oil compositional analysis. This paper is aimed at studying the effects of carbonyl and hydroxyl compounds on oil extraction and also the mutual interactions

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7

Alonso, Ana I., André Lassahn, and Günter Gruhn. "Optimal design of non-dispersive solvent extraction processes." Computers & Chemical Engineering 25, no. 2-3 (2001): 267–85. http://dx.doi.org/10.1016/s0098-1354(00)00652-9.

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8

MIYAKE, YOSHIKAZU, and YOSHINARI BABA. "Rate Processes in Solvent Extraction of Metal Ion." Mineral Processing and Extractive Metallurgy Review 21, no. 1-5 (2000): 351–80. http://dx.doi.org/10.1080/08827500008914173.

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9

Freiser, Henry. "Role of the Interface in Solvent Extraction Processes." Bulletin of the Chemical Society of Japan 61, no. 1 (1988): 39–45. http://dx.doi.org/10.1246/bcsj.61.39.

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10

Chemat, Abert Vian, Ravi, et al. "Review of Alternative Solvents for Green Extraction of Food and Natural Products: Panorama, Principles, Applications and Prospects." Molecules 24, no. 16 (2019): 3007. http://dx.doi.org/10.3390/molecules24163007.

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In recent years, almost all extraction processes in the perfume, cosmetic, pharmaceutical, food ingredients, nutraceuticals, biofuel and fine chemical industries rely massively on solvents, the majority of which have petroleum origins. The intricate processing steps involved in the industrial extraction cycle makes it increasingly difficult to predict the overall environmental impact; despite the tremendous energy consumption and the substantial usage of solvents, often the yields are indicated in decimals. The ideal alternative solvents suitable for green extraction should have high solvency,

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11

Seidova, Sabina A. "EXTRACTION METHODS OF CLEANING OF MOTOR FUEL." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 62, no. 10 (2019): 30–39. http://dx.doi.org/10.6060/ivkkt.20196210.5941.

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In paper the results of the carried out analysis of literary data on preparation of motor fuels of high quality by extraction method of purification of the corresponding oil distillates with use of compounds of various class as a selective solvent have been presented. In particular, the results of comparative analysis of existing methods of the extraction purification of distillates of motor fuels from unnecessary components – aromatic hydrocarbons, sulphur-containing compounds and resinous substances with use of organic solvents and ion-liquid compositions as a selective solvent have been pre

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12

Spasic, Aleksandar M., Vaso Manojlovic, and Mica Jovanovic. "Solvent extraction and entrainment problem." Metallurgical and Materials Engineering 26, no. 2 (2020): 163–75. http://dx.doi.org/10.30544/480.

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Applications of solvent extraction operations and processes play one of the most important roles in Hydrometallurgy. Therefore, in this brief review, some general concepts for selected representative applications are discussed. Also, one particular entrainment problem solution is discussed in some more details. At first, the selected general concepts for metal production of copper and uranium from their ores are presented. Then after, the leaching-solvent extraction-electro winning process for copper is shown. Finally, the extraction of uranium from wet phosphoric acid is discussed.

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13

Rodríguez-Llorente, Diego, Andrés Cañada-Barcala, Silvia Álvarez-Torrellas, Vicente Ismael Águeda, Juan García, and Marcos Larriba. "A Review of the Use of Eutectic Solvents, Terpenes and Terpenoids in Liquid–liquid Extraction Processes." Processes 8, no. 10 (2020): 1220. http://dx.doi.org/10.3390/pr8101220.

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Diverse and abundant applications of the eutectic solvents have appeared in the last years. Their promising tunable properties, eco-friendly character and the possibility of being prepared from numerous compounds have led to the publication of numerous papers addressing their use in different areas. Terpenes and terpenoids have been employed in the formulation of eutectic solvents, though they also have been applied as solvents in extraction processes. For their hydrophobic nature, renewable character, low environmental impact, cost and being non-hazardous, they have also been proposed as poss

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14

Mazuelos, A., N. Iglesias, and F. Carranza. "Inhibition of bioleaching processes by organics from solvent extraction." Process Biochemistry 35, no. 5 (1999): 425–31. http://dx.doi.org/10.1016/s0032-9592(99)00065-5.

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15

van Dorp, J. J. "Condensing Solvent Processes: In Search of the Production Function." SPE Reservoir Evaluation & Engineering 24, no. 02 (2021): 409–28. http://dx.doi.org/10.2118/205009-pa.

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Summary The heavy-oil- and bitumen-recovery process by injection of a pure condensing solvent in a solvent vapor chamber provides an alternative to steam-based recovery techniques such as steam-assisted gravity drainage (SAGD). Because of the lower operating temperature between 40 and 80°C, the process uses a much lower energy budget than a steam process and thus results in significantly reduced greenhouse-gas emissions. This paper describes the route to a successful production function with the physical processes at play and using analytical tools. Physical relationships are derived for the s

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16

Sachit, Ahad D., Lamya J. Basri, Dr Rana R. Jalil, and Ihab S. Hassan. "Using Microwave Technology to Extract Organic Matter from Rocks." Journal of Petroleum Research and Studies 9, no. 4 (2019): 23–39. http://dx.doi.org/10.52716/jprs.v9i4.320.

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Rock extraction is one of the most important processes to prepare samples to core analyses but this method consumes large quantity of solvents and time which means high cost; so it is necessary to innovate new high efficiency ways to replace the traditional methods. The use of microwaves in rock processing is an innovative and unobtrusive method in this field. The design of special furnaces to generate microwave and use them in the extraction of crude oil from rocks become a necessity; because of the need to reduce the costs of this treatment and shorten the necessary time to laboratory experi

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17

Sriti, Jazia, Thierry Talou, Mamadou Faye, Gerard Vilarem, and Brahim Marzouk. "Oil extraction from coriander fruits by extrusion and comparison with solvent extraction processes." Industrial Crops and Products 33, no. 3 (2011): 659–64. http://dx.doi.org/10.1016/j.indcrop.2011.01.005.

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18

Mousa, Khaled, and Fawwaz Khalili. "Solvent Extraction of Uranium (VI) by Didodecylphosphoric Acid." Sultan Qaboos University Journal for Science [SQUJS] 4 (December 1, 1999): 15. http://dx.doi.org/10.24200/squjs.vol4iss0pp15-21.

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Solvent extraction of uranium(Vl) ion from perchlorate solution using didodecylphosphorie acid, DDPA, in toluene diluent was studied. The effects of stripping nitric acid concentration, stripping time, extraction time, DDPA concentration, pH, ionic strength, supporting electrolyte and temperature on the extraction processes have been studied. From the distribution coefficient values at different temperatures, the enthalpy, the free energy and the entropy changes associated with the extraction processes were determined. The composition of the complex formed was established to be UO2(CLO4)(HR2)(

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19

Khalili, Fawwaz I., Khaled M. Mousa, and Ehsan I. Soudani. "Solvent Extraction of Thorium(IV) by Didodecylphoric Acid." Sultan Qaboos University Journal for Science [SQUJS] 8, no. 2 (2003): 107. http://dx.doi.org/10.24200/squjs.vol8iss2pp107-114.

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Solvent extraction of Thorium (VI) ion from perchlorate solution using didodecylphosphoric acid, DDPA, in chloroform diluent was studied. The effects of stripping hydrochloric acid concentration, stripping time, extraction time, DDPA concentration, pH, ionic strength, supporting electrolyte and temperature on the extraction processes have been studied. From the distribution coefficient values at different temperatures,the enthalpy, the free energy and the entropy changes associated with the extraction processes were determined. The composition of the complex formed was established to be Th(ClO

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20

Chanioti, Sofia, Maria Katsouli, and Constantina Tzia. "Novel Processes for the Extraction of Phenolic Compounds from Olive Pomace and Their Protection by Encapsulation." Molecules 26, no. 6 (2021): 1781. http://dx.doi.org/10.3390/molecules26061781.

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Olive pomace, the solid by-product derived from olive oil production consists of a high concentration of bioactive compounds with antioxidant activity, such as phenolic compounds, and their recovery by applying innovative techniques is a great opportunity and challenge for the olive oil industry. This study aimed to point out a new approach for the integrated valorization of olive pomace by extracting the phenolic compounds and protecting them by encapsulation or incorporation in nanoemulsions. Innovative assisted extraction methods were evaluated such as microwave (MAE), homogenization (HAE),

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21

Conrad, Marc, and Irina Smirnova. "Counter-Current Suspension Extraction Process of Lignocellulose in Biorefineries to Reach Low Water Consumption, High Extraction Yields, and Extract Concentrations." Processes 9, no. 9 (2021): 1585. http://dx.doi.org/10.3390/pr9091585.

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The processing of large quantities of water in biorefining processes can lead to immense costs for heating, evaporation, and wastewater disposal. These costs may prohibit the exploitation of alternative products, e.g., xylooligosaccharides from straw, which are regarded as too costly. A new counter-current extractions method is proposed that aims at low solvent (water) consumption, as well as high yields and extract concentrations. This process was evaluated with suspension extraction experiments with steam pretreated wheat straw and the process window analysis based on a mass balance for a wa

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22

T. Santos, Diego, Dayane F. Barbosa, Ketllen Broccolo, M. Thereza M. S. Gomes, Renata Vardanega, and M. Angela A. Meireles. "Pressurized Organic Solvent Extraction with On-line Particle Formation by Supercritical Anti Solvent Processes." Food and Public Health 2, no. 6 (2012): 231–40. http://dx.doi.org/10.5923/j.fph.20120206.08.

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23

Cantwell, Frederick F. "Reply: the role of the interface in solvent extraction processes." Analytical Chemistry 60, no. 2 (1988): 181–82. http://dx.doi.org/10.1021/ac00153a018.

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24

Glanz, S., and J. Stichlmair. "Mixed integer optimization of combined solvent extraction and distillation processes." Computers & Chemical Engineering 21 (May 1997): S547—S552. http://dx.doi.org/10.1016/s0098-1354(97)87559-x.

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25

Glanz, S. "Mixed integer optimization of combined solvent extraction and distillation processes." Computers & Chemical Engineering 21, no. 1-2 (1997): S547—S552. http://dx.doi.org/10.1016/s0098-1354(97)00106-3.

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26

Leonard, Ralph A., David G. Wygmans, Michael J. McElwee, Michael O. Wasserman, and George F. Vandegrift. "The Centrifugal Contactor as A Concentrator in Solvent Extraction Processes." Separation Science and Technology 28, no. 1-3 (1993): 177–200. http://dx.doi.org/10.1080/01496399308019485.

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27

Serna-Vázquez, Julio, Mohd Zamidi Ahmad, Grzegorz Boczkaj, and Roberto Castro-Muñoz. "Latest Insights on Novel Deep Eutectic Solvents (DES) for Sustainable Extraction of Phenolic Compounds from Natural Sources." Molecules 26, no. 16 (2021): 5037. http://dx.doi.org/10.3390/molecules26165037.

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Phenolic compounds have long been of great importance in the pharmaceutical, food, and cosmetic industries. Unfortunately, conventional extraction procedures have a high cost and are time consuming, and the solvents used can represent a safety risk for operators, consumers, and the environment. Deep eutectic solvents (DESs) are green alternatives for extraction processes, given their low or non-toxicity, biodegradability, and reusability. This review discusses the latest research (in the last two years) employing DESs for phenolic extraction, solvent components, extraction yields, extraction m

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28

Richins, Richard D., Laura Hernandez, Barry Dungan, Shane Hambly, F. Omar Holguin, and Mary A. O'Connell. "A “Green” Extraction Protocol to Recover Red Pigments from Hot Capsicum Fruit." HortScience 45, no. 7 (2010): 1084–87. http://dx.doi.org/10.21273/hortsci.45.7.1084.

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Plant pigments represent a source of non-toxic compounds that are used as food or cosmetic coloring agents. Red-fruited varieties of Capsicum annuum can be extracted to isolate the red-colored xanthophylls, capsanthin, and capsorubin. Common commercial processes for this extraction use hexane as the extracting solvent and mild or no heat varieties of Capsicum. In this report, we describe a process for efficient extraction of these red pigments using green chemistry: CO2 supercritical fluid extraction and trapping the pigments in ethanol. Furthermore, we demonstrate that this method can be perf

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29

Świetlicka, Aleksandra, Agnieszka Środa, Violetta Kozik, et al. "Electrochemical Corrosion Monitoring in Low Conductive Fluid: Pilot-Scale Study on Sulfolane Corrosion Potential." Proceedings 16, no. 1 (2019): 5. http://dx.doi.org/10.3390/proceedings2019016005.

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Solvents are a group of chemical compounds that are widely used in organic synthesis. Taking into account the chemical nature, solvents are divided into protic and aprotic ones. An attractive alternative to commonly used industrial extractive liquids is an anthropogenic, organosulfur medium—sulfolane. Sulfolane is a five-membered heterocyclic sulfur–organic compound from the group of sulfones (R-SO2-R’, where R/R’ is alkyl, alkenyl, or aryl), which contains an apolar hydrocarbon backbone and a polar functional group. It is a selective solvent in the liquid–liquid and liquid–vapor extraction pr

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30

Yadav, Kartikey K., R. Vijayalakshmi, and H. Singh. "Uranium from phosphoric acid: Kinetic studies of the solvent extraction processes for uranium extraction." Desalination and Water Treatment 12, no. 1-3 (2009): 45–51. http://dx.doi.org/10.5004/dwt.2009.949.

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31

Moon, Seong-Hoon. "Calculation of Light to Medium Rare Earth Solvent Extraction Processes Optimal Extraction Ratio Theory." Korean Society of Technical Education and Training 23, no. 2 (2018): 65–72. http://dx.doi.org/10.29279/kostet.2018.23.2.65.

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32

Ofori-Boateng, Cynthia, Lee Keat Teong, and Lim JitKang. "Comparative exergy analyses of Jatropha curcas oil extraction methods: Solvent and mechanical extraction processes." Energy Conversion and Management 55 (March 2012): 164–71. http://dx.doi.org/10.1016/j.enconman.2011.11.005.

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33

Rienks, Johan. "Comparison of results for chemical and thermal treatment of contaminated dredged sediments." Water Science and Technology 37, no. 6-7 (1998): 355–62. http://dx.doi.org/10.2166/wst.1998.0772.

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This article describes the main results of research work on chemical and thermal treatment techniques from a special programme, subsidised by the Dutch government. The aim was development and demonstration of treatment processes for contaminated dredged sediments. Studied treatment processes were thio-leaching, EDTA-extraction, solvent-extraction, extraction with supercritical carbon dioxide, wet air oxidation and thermal desorption. All processes were performed on laboratory scale, some also on pilot scale or even at full scale. Three processes were selected as potential remediation processes

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34

CAMPA-GUEVARA, DIANA L., NOHRA V. GALLARDO-RIVAS, ANA M. MENDOZA-MARTÍNEZ, ULISES PÁRAMO-GARCÍA, LUCIANO AGUILERA-VÁZQUEZ, and REINALDO D. MARTÍNEZ-OROZCO. "SYNTHESIS AND APPLICATION OF TWO NEW IONIC LIQUIDS IN THE EXTRACTION OF CELLULOSE FROM BOUGAINVILLEA SPECTABILIS." Cellulose Chemistry and Technology 55, no. 1-2 (2021): 23–31. http://dx.doi.org/10.35812/cellulosechemtechnol.2021.55.03.

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Cellulose is a natural polymer formed by chains of polysaccharide carbohydrates. Traditional processes for extraction of cellulose are expensive and require solvents with high ionic strength and stringent conditions. In this paper, we propose the extraction of cellulose from Bougainvillea spectabilis by using a traditional procedure, such as alkaline and acidic hydrolysis extraction, as well as the Vieira extraction method with the aid of two ionic liquids (ILs), with the purpose of using a solvent that allows reducing the harmful impact on the environment and human health. The obtained fibrou

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35

Shim, Hyunjin, and Hongkee Sah. "Qualification of Non-Halogenated Organic Solvents Applied to Microsphere Manufacturing Process." Pharmaceutics 12, no. 5 (2020): 425. http://dx.doi.org/10.3390/pharmaceutics12050425.

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As a non-halogenated dispersed solvent, ethyl acetate has been most commonly used for the manufacturing of poly-d,l-lactide-co-glycolide (PLGA) microspheres. However, ethyl acetate-based microencapsulation processes face several limitations. This study was aimed at proposing ethyl formate as an alternative. Evaluated in this study was the solvent qualification of ethyl formate and ethyl acetate for microencapsulation of a hydrophobic drug into PLGA microspheres. An oil-in-water emulsion solvent extraction technique was developed to load progesterone into PLGA microspheres. Briefly, right after

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36

Fattah, I. M. Rizwanul, M. Y. Noraini, M. Mofijur, et al. "Lipid Extraction Maximization and Enzymatic Synthesis of Biodiesel from Microalgae." Applied Sciences 10, no. 17 (2020): 6103. http://dx.doi.org/10.3390/app10176103.

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Microalgae has received overwhelming attention worldwide as a sustainable source for energy generation. However, the production of biofuel from microalgae biomass consists of several steps, of which lipid extraction is the most important one. Because of the nature of feedstock, extraction needs special attention. Three different methods were studied to extract algal oil from two different algae variant, Chlorella sp. and Spirulina sp. The highest percentage oil yield was obtained by ultrasonication (9.4% for Chlorella sp., 6.6% for Spirulina sp.) followed by the Soxhlet and solvent extraction

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37

Martínez-Ávila, Guillermo C. G., Pedro Aguilar-Zarate, and Romeo Rojas. "Currently Applied Extraction Processes for Secondary Metabolites from Lippia turbinata and Turnera diffusa and Future Perspectives." Separations 8, no. 9 (2021): 158. http://dx.doi.org/10.3390/separations8090158.

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The poleo (Lippia turbinata Griseb.) and damiana (Turnera diffusa Wild) are two of the most valued species in the Mexican semidesert due to their medicinal uses. The conventional essential oil extraction process is hydrodistillation, and for the extraction of antioxidants, the use of organic solvents. However, these techniques are time-consuming and degrade thermolabile molecules, and the efficiency of the process is dependent on the affinity of the solvent for bioactive compounds. Likewise, they generate solvent residues such as methanol, hexane, petroleum ether, toluene, chloroform, etc. The

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38

Grasso, F. V., P. A. Montoya, C. C. Camusso, and B. G. Maroto. "Improvement of Soybean Oil Solvent Extraction through Enzymatic Pretreatment." International Journal of Agronomy 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/543230.

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The purpose of this study is to evaluate multienzyme hydrolysis as a pretreatment option to improve soybean oil solvent extraction and its eventual adaptation to conventional processes. Enzymatic action causes the degradation of the cell structures that contain oil. Improvements in terms of extraction, yield, and extraction rate are expected to be achieved. Soybean flakes and collets were used as materials and hexane was used as a solvent. Temperature, pH, and incubation time were optimized and diffusion coefficients were estimated for each solid. Extractions were carried out in a column, oil

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39

Mortaheb, H. R., M. Mafi, B. Mokhtarani, K. Khosravi, and F. Mashkini. "Optimization of NMP Extraction in 1, 3-Butadiene Production Line." Eclética Química Journal 35, no. 1 (2018): 85. http://dx.doi.org/10.26850/1678-4618eqj.v35.1.2010.p85-89.

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N-methylpyrrolidone is a powerful solvent for variety of chemical processes due to its vast chemical properties. It has been used in manufacturing processes of polymers, detergents, pharmaceuticals rubber and many more chemical substances. However, it creates large amount of residue in some of these processes which has to be dealt with. Many well known methods such as BASF in rubber producing units have tried to regenerate the solvent at the end of each run, however, there is still discarding of large amount of residue containing NMP, which over time, could cause environmental concerns. In thi

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40

Hiep, Nguyen Tuan, Hoang Thanh Duong, Dang Tuan Anh, et al. "Subcritical Water Extraction of Epigallocatechin Gallate from Camellia sinensis and Optimization Study Using Response Surface Methodology." Processes 8, no. 9 (2020): 1028. http://dx.doi.org/10.3390/pr8091028.

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Background: Camellia sinensis is a plant whose leaves and buds are used to produce tea. With many medicinal activities already found, green tea has been consumed widely in the world. Methods: The subcritical water extraction (SWE) of epigallocatechin gallate (EGCG) from green tea leaves and the effect of the different extraction conditions are investigated by response surface methodology (RSM). Furthermore, the model of the extraction processes is reviewed for application at the industrial scale. Results: Based on the RSM data, the maximum yield of extraction is determined via optimizing diffe

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41

Chartroux, Christine, Kathrin Wichmann, Gudrun Goretzki, et al. "Preorganized Complexing Agents as a Tool for Selective Solvent Extraction Processes." Industrial & Engineering Chemistry Research 39, no. 10 (2000): 3616–24. http://dx.doi.org/10.1021/ie000308z.

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42

Beltrami, Denis, Gérard Cote, Hamid Mokhtari, Bruno Courtaud, Bruce A. Moyer, and Alexandre Chagnes. "Recovery of Uranium from Wet Phosphoric Acid by Solvent Extraction Processes." Chemical Reviews 114, no. 24 (2014): 12002–23. http://dx.doi.org/10.1021/cr5001546.

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43

Meckes, Mark C., Esperanza Renard, Jim Rawe, and George Wahl. "Solvent Extraction Processes: A Survey of Systems in the SITE Program." Journal of the Air & Waste Management Association 42, no. 8 (1992): 1118–21. http://dx.doi.org/10.1080/10473289.1992.10467058.

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Leonard, R. A. "Use of Electronic Worksheets for Calculation of Stagewise Solvent Extraction Processes." Separation Science and Technology 22, no. 2-3 (1987): 535–56. http://dx.doi.org/10.1080/01496398708068968.

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Wierczinski, B., J. Alstad, K. Eberhardt, et al. "Application of fast solvent extraction processes to studies of exotic nuclides." Journal of Radioanalytical and Nuclear Chemistry 236, no. 1-2 (1998): 193–97. http://dx.doi.org/10.1007/bf02386341.

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Chourfi, Abdelali, Soumia Darai, Ghizlane Echchgadda, and Tajelmolk Alaoui. "Processes contributing to the improvement in antifungal effect of bio-molecules extracted from Moroccan Laurus nobilis against Verticillium dahliae." South Asian Journal of Experimental Biology 4, no. 5 (2015): 267–75. http://dx.doi.org/10.38150/sajeb.4(5).p267-275.

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This work offers comparisons between stakeholder’s labor works before and during extraction of biomolecules extracted from Laurus nobilis in Morocco. The objective of this study was to determine some paths to follow in order to have a better extract that can inhibit or minimize the development of Ver-ticilium dahliae. For essential oils, we studied the effect of harvest region, harvest period, plant part, drying temperature, pressure of distillation, distil-lation temperature and fraction of applied essential oil. For extracts with organic solvents, we compared their effect by pursuing both te

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Klaviòa, Laura, and Gunta Spriòìe. "Optimisation of Conditions for Extraction of Biologically Active Compounds from Common Bryophytes in Latvia / Latvijâ Augoðu Briofîtu Ekstrakcijas Apstâkïu Optimizâcijas Ietekme Uz Bioloìiski Aktîviem Sekundârajiem Metabolîtiem." Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences. 69, no. 6 (2015): 299–306. http://dx.doi.org/10.1515/prolas-2015-0046.

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Abstract Bryophytes are the second largest taxonomic group in the plant kingdom. They contain a high number of biologically active compounds. Studies of their composition are important for understanding evolutionary processes in the plant kingdom. The aim of this study was to assess bryophyte secondary metabolite extraction options and to increase the yields of polyphenols and substances determining the free radical scavenging activity of bryophyte extracts. Similar studies have been conducted using higher plants as model organisms, but not using bryophytes. Comparison of five extraction metho

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Setyawati, Harimbi, Yepta Octaria, Enggar Saraswati H, and Erni Yunita. "The Effect of Variation on Solvent Type and Starch Extraction Time on the Increased Level of Reducing Sugar from Jackfruit Straw Waste." International Journal of ChemTech Research 13, no. 1 (2020): 159–63. http://dx.doi.org/10.20902/ijctr.2019.130119.

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: Jackfruit straw is a part of jackfruit that does not experience pollination in the form of yellow fibers. Jackfruit straw has a composition consisting of 13.45% starch, 65.05% water. The potential content of jackfruit straw starch can be used as an alternative fuel, it was, bioethanol. This material can be converted to bioethanol through hydrolysis and fermentation processes. This study aimed to determine the effect of variations in the type of solvent and extraction time, used the type of solvent H2O, NaOH and NaHCO3 for starch which was then hydrolyzed and produced glucose as a raw materia

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Yan, Xiao Chao, Zheng Zai Cheng, Rui Lei, and Su Su Lin. "Regeneration of Used Vacuum Pump Oil by Furfuryl Alcohol." Advanced Materials Research 361-363 (October 2011): 569–73. http://dx.doi.org/10.4028/www.scientific.net/amr.361-363.569.

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Solvent extraction technique is one of the cheapest and most efficient processes experienced in recycling of used lubricating oils. In this paper, the performance of furfuryl alcohol in recycling used vacuum pump oil was evaluated experimentally. The effect of the most critical parameters (solvent to oil ratio, and extraction temperature) was investigated. The results show that viscosity index and refractive index of refined oil was related to the solvent to oil ratio. Viscosity index and the refractive index come to a reasonable value at 90°C when solvent to oil ratio equal to 1.5. The differ

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Carpentieri, Serena, Farid Soltanipour, Giovanna Ferrari, Gianpiero Pataro, and Francesco Donsì. "Emerging Green Techniques for the Extraction of Antioxidants from Agri-Food By-Products as Promising Ingredients for the Food Industry." Antioxidants 10, no. 9 (2021): 1417. http://dx.doi.org/10.3390/antiox10091417.

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Nowadays, the food industry is heavily involved in searching for green sources of valuable compounds, to be employed as potential food ingredients, to cater to the evolving consumers’ requirements for health-beneficial food ingredients. In this frame, agri-food by-products represent a low-cost source of natural bioactive compounds, including antioxidants. However, to effectively recover these intracellular compounds, it is necessary to reduce the mass transfer resistances represented by the cellular envelope, within which they are localized, to enhance their extractability. To this purpose, em

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