Relevant bibliographies by topics / Extraction phosphoric acid

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Extraction phosphoric acid'

Author: Grafiati
Published: 28 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Extraction phosphoric acid"

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Turgis, Raphaël, Antoine Leydier, Guilhem Arrachart, et al. "Uranium Extraction from Phosphoric Acid Using Bifunctional Amido-Phosphonic Acid Ligands." Solvent Extraction and Ion Exchange 32, no. 5 (2014): 478–91. http://dx.doi.org/10.1080/07366299.2014.898435.

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Al-Thyabat, S., and P. Zhang. "REE extraction from phosphoric acid, phosphoric acid sludge, and phosphogypsum." Mineral Processing and Extractive Metallurgy 124, no. 3 (2015): 143–50. http://dx.doi.org/10.1179/1743285515y.0000000002.

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Berkalou, Kaoutar, Abderrahman Nounah, Mohamed Khamar, Ratiba Boussen, and Essediya Cherkaoui. "Extraction of cadmium from phosphoric acid by a synthesized extracting agent." E3S Web of Conferences 150 (2020): 02007. http://dx.doi.org/10.1051/e3sconf/202015002007.

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The Purification of phosphoric acid used several extractants from the family of oxygenates, sulfurous or amino compounds. In this work, we were interested in the synthesis, physico-chemical and spectroscopic characterization, and use of the product C11H18N2O as an extractant of cadmium from phosphoric acid. The synthesized product was characterized by: infrared spectroscopy, nuclear magnetic resonance, and mass spectroscopy. Solubility tests in different solvents have been carried out. Subsequently, liquid-liquid extraction of cadmium from phosphoric acid was carried out using C11H18N2O as an
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Zhazira, Baltabekova, Kenzhaliyev Bagdaulet, Lokhova Nina, and Kassymzhanov Kaisar. "Sorption Extraction of Rare Earth Metals from Wet-Process Phosphoric Acid." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 83, no. 1 (2021): 140–52. http://dx.doi.org/10.37934/arfmts.83.1.140152.

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When apatites and phosphorites are processed, up to 30% of rare earth metals are converted into wet-process phosphoric acid. Wet-process phosphoric acid from the phosphorite treatment process differs from apatite one by impurity composition, i.e. the iron content is by 3.5 times, and calcium is by 5.0 times more. The complex composition of the wet-process phosphoric acid from the phosphorite treatment process requires additional researches to select optimal ion exchangers and technological parameters of sorption. Various aspects of sorption have been studied to select the optimal ion exchanger
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Elbekovich, Sultonov Bokhodir, and Xolmatov Dilshod Sattorjonovich. "Study of the Production of Wet-processing Phosphoric Acid by Clinker Method on Base of Mineralized Mass." Chemical Science International Journal 33, no. 5 (2024): 1–10. http://dx.doi.org/10.9734/csji/2024/v33i5911.

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The article presents the results of the study of extractive phosphoric acid extraction processes from the mineralized mass (MM) - mineralized mass (MM) produced during the thermal processing of Central Kyzylkum (CK) phosphorite. Effects of sulfuric acid concentration on the quality parameters of the obtained wet-processing phosphoric acid (WPPA), processes of WPPA extraction through different concentrations of phosphoric acid solution from phosphoric acid-gypsum porridge were studied. The optimal parameters of these processes have been determined. In the composition of WPPA obtained in accepta
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MORITA, Yasuji, Masumitsu KUBOTA, Masahiro YONEYA, Osamu TOCHIYAMA, and Yasushi INOUE. "Influence of Monoisodecyl Phosphoric Acid on Extraction of Neptunium with Diisodecyl Phosphoric Acid." Journal of Nuclear Science and Technology 26, no. 7 (1989): 698–704. http://dx.doi.org/10.1080/18811248.1989.9734369.

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Ramazonova, Dilbar, Zokirjon Turaev, Bakhodir Mamurov, et al. "Extraction of Zinc from Zinc Sublimber with Sulfuric, Thermal and Extraction Phosphoric Acid." IOP Conference Series: Earth and Environmental Science 1204, no. 1 (2023): 012003. http://dx.doi.org/10.1088/1755-1315/1204/1/012003.

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Abstract The study was conducted to extract zinc and the results on the extraction of Zn from zinc sublime with the solution of sulfuric, thermal and extraction phosphoric acids are presented depending on Solid: Liquid (S:L), concentration and duration of the leaching process. Sulfuric acid was used with a content of 8% which is a waste product of non-ferrous metallurgy, thermal phosphoric extraction phosphoric acid from phosphorites of the Central Kyzylkum. It has been established that the maximum degree of zinc extraction is noted when using extraction phosphoric acid, which is 96-98%, S:L=1
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Cho, Kanghee, Eunji Myung, Hyunsoo Kim, Cheonyoung Park, Nagchoul Choi, and Cheol Park. "Effect of Soil Washing Solutions on Simultaneous Removal of Heavy Metals and Arsenic from Contaminated Soil." International Journal of Environmental Research and Public Health 17, no. 9 (2020): 3133. http://dx.doi.org/10.3390/ijerph17093133.

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In this study, we investigated the feasibility of using a solution of sulfuric acid and phosphoric acid as an extraction method for soil-washing to remove Cu, Pb, Zn, and As from contaminated soil. We treated various soil particles, including seven fraction sizes, using sulfuric acid. In addition, to improve Cu, Pb, Zn, and As removal efficiencies, washing agents were compared through batch experiments. The results showed that each agent behaved differently when reacting with heavy metals (Cu, Pb, and Zn) and As. Sulfuric acid was more effective in extracting heavy metals than in extracting As
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Mirzaqulov, X.Ch, Zikirov.X, E.D Eminov, and O. Boltaboyev. "MANUFACTURE EXTRACTION PHOSPHORIC ACID BY WET METHOD." GOLDEN BRAIN 1, no. 26 (2023): 67–70. https://doi.org/10.5281/zenodo.8379217.

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<em>Results of comparative analyses of a chemical compound and technological exponents of manufacture extraction phosphoric acid are resulted. It is shown, that optimum conditions of reception extraction phosphoric acid with the content of 21,5-23% </em><em>Р</em><em><sub>2</sub></em><em>О</em><em><sub>5</sub></em><em>&nbsp;are temperature 85-90</em><em><sup>о</sup></em><em>С</em><em>, ratio L:S = 2,5-3,5 and the content free S</em><em>О</em><em><sub>3</sub></em><em>&nbsp;1,5-2,5%.</em>
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Najmiddinov, Rixsitilla Yunusali o'g'li Shamshidinov Israiljon Turgunovich Qodirova Gulnoza Qodirjonovna Sayfiddinov Osimkhan Obiddin o'g'li. "PURIFICATION OF PHOSPHORIC ACID FROM IMPURITIES IN THE EXTRACTION PROCESS AND RESEARCH OF OBTAINING HIGH-QUALITY NITROGEN-PHOSPHORIC FERTILIZERS." MODELS AND METHODS IN MODERN SCIENCE 1, no. 16 (2022): 86–99. https://doi.org/10.5281/zenodo.7340526.

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The aim of the research is the removal of phosphoric acid from Central Kyzylkum phosphates by fluoride and sulphate additives during the extraction of phosphoric acid, iron and aluminium, calcium, magnesium, sulphate, fluorine during the ammonium phosphate acid extraction phase. Study the process of producing environmentally friendly and fully water-soluble ammonium phosphates.
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Dissertations / Theses on the topic "Extraction phosphoric acid"

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Booker, Nicholas Anthony. "Removal of cadmium from wet process phosphoric acid by cation exchange." Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/47365.

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Murthy, Challa Venkata Ramachandra. "Modelling of the rate of stripping of zinc from di(2-ethylhexyl) phosphoric acid in n-heptane." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/8688.

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El, Mourabit Sabah. "Matériaux hybrides inorganiques-organiques pour l'extraction d'uranium en milieu acide phosphorique." Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20035.

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Les minerais de phosphates, principalement exploités pour la production d'acide phosphorique et d'engrais, contiennent une quantité non-négligeable d'uranium (50 à 300 ppm) qui suscite l'intérêt de l'industrie nucléaire. Notre étude s'inscrit dans ce contexte de valorisation de l'uranium en tant que sous-produit de l'industrie des fertilisants.L'objectif de ce travail de thèse a été de mettre au point un matériau hybride, constitué d'un support inorganique sur lequel est greffée une molécule complexante, capable d'extraire sélectivement l'uranium du milieu acide phosphorique. La première étape
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MacLean, Donald William John. "The kinetics of zinc extraction in the di(2-ethylhexyl) phosphoric acid, n-heptane-zinc perchlorate, perchloric acid, water system." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30023.

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The kinetics of zinc extraction from perchlorate solutions with di(2-ethylhexyl) phosphoric acid in n-heptane have been measured using the rotating diffusion cell technique. The extraction of zinc is controlled by the mass transfer of reactants (Zn²⁺ and D2EHPA) to the interface. At low zinc concentrations, the system is controlled by the aqueous transport of Zn²⁺ to the interface; at higher zinc concentrations transport of D2EHPA becomes rate controlling. For the range of D2EHPA concentrations examined, the transport of D2EHPA is rate controlling. Bulk pH has a negligible effect, except perh
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Campos, Assunção Mariana. "Etude physicochimique et formulation d'un nouveau solvant d'extraction pour la purification de l'acide phosphorique." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066045/document.

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Cette thèse avait pour objectif de développer de nouveaux systèmes d’extraction liquide-liquide compatibles avec le procédé Prayon pour la purification de l’acide phosphorique produit par voie humide. Une étude bibliographique complète des solvants d’extraction étudiés dans la littérature pour l’extraction liquide-liquide de l’acide phosphorique nous a permis d’identifier des candidats potentiellement intéressants. Une étude approfondie des propriétés d’extraction de ces systèmes et de leur sélectivité vis-à-vis des espèces métalliques nous a finalement permis de nous focaliser par la suite su
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Mouhib, Mohamed. "Equilibres entre phases liquides et solides dans les systèmes H₂O-H₃PO₄-Solvant (DIPE ; TBP ; MIBK ; Hexane) en vue de la purification de l’acide phosphorique : Étude expérimentale et modélisation thermodynamique." Electronic Thesis or Diss., Lyon 1, 2024. http://www.theses.fr/2024LYO10276.

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L'acide phosphorique (H3PO4) est le deuxième acide inorganique le plus produit au monde, principalement utilisé dans la fabrication d'engrais. Cependant, son utilisation dans des applications technologiques de pointe, telles que l'industrie des semi-conducteurs, nécessite une pureté extrêmement élevée qui ne peut être obtenue qu’après élimination poussée des cations métalliques et matière organique dissous, dont l’origine est la roche phosphatée initiale. Pour optimiser la purification de l'acide phosphorique élaboré par voie humide (WPA), il est primordial de maîtriser les équilibres entre ph
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Patel, Hamantkumar Vasudev. "The kinetics of liquid-liquid extraction of metals in a rotating diffusion cell : a rotating diffusion cell is used to study the rates of extraction of divalent transition metals by di-(2-ethylhexyl)-phosphoric acid and a sulphur analogue : a chemical-diffusion model describes the rate curves." Thesis, University of Bradford, 1988. http://hdl.handle.net/10454/5025.

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A rotating diffusion cell (RDC) has been used to study the kinetics of extraction of the transition metals cobalt (II), nickel (II), copper (II) and zinc (II) from sulphate solutions into either of two extractants held in n-heptane; di-(2-ethylhexyl) phosphoric acid (D2EHPA) or di-(2- ethylhexyl) dithiophosphoric acid (D2EHDTPA). The metal concentration was 10 mM and the aqueous pH was held at 4.5. The extractant concentration was varied between 0.015 to 0.4 M. In the case of cobalt extraction by D2EHPA, the metal concentration and the pH were varied Different diluents and modifiers were also
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Пляцук, Леонід Дмитрович, Леонид Дмитриевич Пляцук, Leonid Dmytrovych Pliatsuk та ін. "Огляд проблематики комплексної переробки фосфогіпсу". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/66521.

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Існує необхідність в оптимізації і підвищенні ефективності існуючих процесів селективного біовилуговування фосфогіпсу, для розробки комплексного технологічного рішення, спрямованого на зниження негативного впливу фосфогіпсових відвалів на навколишнє середовище і повноцінного використання компонентів фосфогіпсу у виробництві як вторинного ресурсу.
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Bakti, Jos. "Récupération d'acides malique et tartrique par extraction liquide-liquide. Application à la dépollution d'effluents agro-industriels." Toulouse, INPT, 1993. http://www.theses.fr/1993INPT009G.

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Les distilleries et caves cooperatives productrices de sucre de raisin rejettent dans l'environnement des effluents aqueux charges en produits polluants qu'il est imperatif d'eliminer. Parmi ces produits, les acides tartrique et malique constituent environ 50% de la charge organique dont l'extraction permet de diminuer la pollution du milieu naturel. Par ailleurs, l'acide malique present dans ces effluents residuaires est sous la forme levogyre pour laquelle il existerait un marche potentiel comme substitut de l'acide citrique dans l'industrie agroalimentaire, a condition que les couts de prod
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Chahal, Surinder P. "Organophosphorus acids for hydrometallurgical extraction. The synthesis of di(2-methylcyclohexyl)-, di(3-methylcyclohexyl)-, di(4-methylcyclohexyl)-, di(3,5-dimethylcyclohexyl)-, di(4-t-butylcyclohexyl)-, di(cyclohexylmethyl)- and dicyclohexyl- phosphinic; cyclohexylmethyl monocyclohexylmethylphosphonic; di(2-methylcyclohexyl)-, di(4-methylcyclohexyl)-, di(cyclohexylmethyl)- and di(cyclohexylethyl)- phosphoric acids and their evaluation as potential hydrometallurgical extractants for cobalt or nickel." Thesis, University of Bradford, 1987. http://hdl.handle.net/10454/4395.

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The syntheses and characterisation of di(cyclohexylmethyl), di(2-cyclohexylethyl), di(2-methylcyclohexyl) and di(4-methylcyclohexyl) phosphoric acids; cyclohexylmethyl phosphonic acid monocyclohexylmethyl ester, di(cyclohexylmethyl), di(4-methylcyclohexyl), di(4-tert- butylcyclohexyl), di(3-methylcyclohexyl), di(3,5-dimethylcyclohexy) and di(2-methylcyclohexyl) phosphinic acids are reported. Problems encountered and how they were resolved during the preparation of the above organophosphorus acids are reported and discussed in detail. These acids are then evaluated as potential hydrome
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Books on the topic "Extraction phosphoric acid"

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El-Razik, Salah Mahrose Abd. Extraction of phosphoric acid from phosphateore. University of Salford, 1990.

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Park, Sang Joon. Solvent extraction of nickel from nitrate media by DI(2-ethylhexyl) phosphoric acid under high loading conditions. UMI Dissertation Services, 1996.

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Klapper, Peter. Adsorption Equilibria of Di(2-Ethylhexyl)Phosphoric Acid at the Water-Dodecane-Interface. Importance of Zinc Extraction. GRIN Verlag GmbH, 2014.

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Bradford, University of, ed. The kinetics of liquid-liquid extraction of metals in a rotating diffusion cell: A rotating diffusion cell is used to study the rates of extraction of divalent transition metals by di-(2-ethylhexl)-phosphoric acid and a sulphur analogue. A chemical-dffusion model describes the rate curves. 1988.

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Chahal, Surinder Pall. Organophosphorus acids for hydrometallurgical extraction: The synthesis of --- phosphinic and --- phosphoric acids and their evaluation as potential hydrometallurgical extractants for cobalt or nickel.. 1987.

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Book chapters on the topic "Extraction phosphoric acid"

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Berkalou, Kaoutar, Abderrahman Nounah, Mohamed Khamar, Essediya Cherkaoui, Nisrine Boughou, and Ratiba Boussen. "Liquid–Liquid Extraction Studies of Heavy Metals (Cd, Cr and Zn) from Phosphoric Acid Solutions Using C11H18N2O as a Synthetic Agent." In Springer Proceedings in Earth and Environmental Sciences. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-49345-4_12.

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Chen, Xin-Mian, Hong-Yi Li, Jing Tan, Jie Cheng, Jiang Diao, and Bing Xie. "Extraction of Vanadium from High Calcium and High Phosphorus Vanadium Slag by Magnesiation Roasting-Acid Leaching." In Rare Metal Technology 2024. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-50236-1_42.

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Tian, Xiangmiao, Yufeng Wu, Xiaofei Yin, Yu Gong, Kaihua Zhang, and Yu Fu. "Eco-friendly Selective Synergistic Extraction Rare-Earths from Waste CRT Phosphor Powder Sulfuric Acid Leachate with Imidazolium-Based Ionic Liquid [OMIm] [PF6] and Extractant Cyanex272." In Springer Proceedings in Energy. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0158-2_52.

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JACOBS, J. J., S. BEHMO, M. ALLARD, and J. MOREAU. "USING AN ALKYL PHOSPHORIC ACID IN COMBINATION WITH ANOTHER EXTRACTION AGENT." In Nickel & Cobalt Extraction Using Organic Compounds. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-08-030576-9.50035-7.

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M. Salman, Huda, and Ahmed Abed Mohammed. "Removal of Copper Ions from Aqueous Solution Using Liquid Surfactant Membrane Technique." In Colloids - Types, Preparation and Applications. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95093.

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Liquid Surfactant Membrane (LSM) as an alternative extraction technique shows many advantages without altering the chemistry of the oil process in terms of efficiency, cost effectiveness and fast demulsification post extraction. Copper (Cu) extraction from aqueous solution using Liquid Membrane (LM) technology is more efficient than the sludge-forming precipitation process and has to be disposed of in landfills. In this chapter, a liquid surfactant membrane (LSM) was developed that uses kerosene oil as LSM ‘s key diluent to extract copper ions as a carrier from the aqueous waste solution throu
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HUNG, Tsung-Min, and Chau-Jen LEE. "Retardation of the Transport if Eu(Iii) Through Supported Di(2-Ethylhexyl)-Phosphoric Acid-Kerosene Liquid Membrane." In Solvent Extraction 1990, Part B. Elsevier, 1992. http://dx.doi.org/10.1016/b978-0-444-88677-4.50061-1.

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Zilberman, B. Ya, Yu S. Fedorov, O. V. Shmidt, et al. "Extraction of Transplutonium and Rare-Earth Elements with the Use of Zirconium Salt of Dibutyl Phosphoric Acid." In Recent Advances in Actinide Science. The Royal Society of Chemistry, 2006. http://dx.doi.org/10.1039/bk9780854046782-00614.

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Girgin, Ş., N. A. carkan, M. Sevinç, N. B. Y. Yüksek, and S. Acarkan. "Comparative study for the solvent extraction of uranium from wet process phosphoric acid using two convenient organic solvents." In Mineral Processing on the Verge of the 21st Century. Routledge, 2017. http://dx.doi.org/10.1201/9780203747117-86.

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JACOBS, J. J., S. BEHMO, M. ALLARD, and J. MOREAU. "USING ALKYL PHOSPHORIC ACIDS." In Nickel & Cobalt Extraction Using Organic Compounds. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-08-030576-9.50034-5.

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HUANG, TING-CHIA, and TEH-HUA TSAI. "Separation of Cobalt and Nickel Ions with 2-Ethylhexyl Phosphonic Acid Mono-2-Ethylhexyl Ester Dissolved in Kerosene." In Solvent Extraction 1990, Part B. Elsevier, 1992. http://dx.doi.org/10.1016/b978-0-444-88677-4.50071-4.

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Conference papers on the topic "Extraction phosphoric acid"

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Alves, H., R. Behrens, and L. Paul. "Review of Corrosion Issues and Material Solutions in the CPI." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10338.

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Abstract The development of high performance nickel-chromium-molybdenum alloys and of advanced nickel-chromium-iron-molybdenum-copper alloys has offered important solutions to corrosion issues of the chemical process industry. The most important nickel-chromium-molybdenum alloys for engineering purposes are the so-called C-type alloys, where alloy EN 2.4819 / UNS N10276 and alloy 59 (EN 2.4605 / UNS N06059) are among the predominant ones. UNS N10276 has its main areas of use for corrosive attack by reducing acids as sulphuric acid, phosphoric acid, hydrochloric acid, and organic acids. It has
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Kalyakin, S. N., V. I. Kuzmin, and M. A. Mulagaleeva. "EXTRACTION OF HEAVY GROUP LANTHANIDES BY MIXTURES OF BINARY EXTRACTANTS AND SOLVATING REAGENTS." In XVI INTERNATIONAL CONFERENCE "METALLURGY OF NON-FERROUS, RARE AND NOBLE METALS" named after corresponding member of the RAS Gennady Leonidovich PASHKOVA. Krasnoyarsk Science and Technology City Hall, 2023. http://dx.doi.org/10.47813/sfu.mnfrpm.2023.140-147.

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Currently, phosphorus-containing cation-exchange organic extractants, due to their greatest selectivity, are the most commonly used reagents in the separation of rare earth metals (REM) by extraction methods. However, their use in the isolation and purification of individual REM is associated with high costs of reagents (mineral acids and bases). The addition of a cation-exchange extractant to a mixture of cation-exchange extractants makes it possible to change the nature of the process from cation exchange to extraction of the neutral salt, creating new opportunities for re-extraction of REM
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Zhang, Hua, ZhiLiang Zhu, YanLing Qiu, RongHua Zhang, and JianFu Zhao. "Extraction of Heavy Metals from Sewage Sludge with Phosphoric Acid." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5517230.

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Grigorieva, N. A., I. Yu Fleitlikh, A. Ya Tikhonov, and E. V. Karpova. "INDIUM EXTRACTION FROM SULFATE SOLUTIONS. FROM THEORY TO PRACTICE." In XVI INTERNATIONAL CONFERENCE "METALLURGY OF NON-FERROUS, RARE AND NOBLE METALS" named after corresponding member of the RAS Gennady Leonidovich PASHKOVA. Krasnoyarsk Science and Technology City Hall, 2023. http://dx.doi.org/10.47813/sfu.mnfrpm.2023.481-486.

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The main source for the production of indium is from the lead-zinc industry. The most efficient methods for indium recovery from these solutions are extraction methods. Di(2-ethylhexyl)phosphoric acid is mainly used as an extractant (D2EHPA, HR). However, the most significant disadvantage of using D2EHPA is the need to use concentrated HCl solutions (4–7 mol/L) to strip indium from the loaded D2EHPA, which leads to a high content of chloride ion in zinc production. The latter has a significant negative effect on the efficiency of zinc electrolysis.
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Othman, Norasikin. "TBP-D2EHPA system for synergizing phenol extraction in emulsion liquid membrane process." In Decarbonization Technology: ICDT2024. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903575-20.

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Abstract. Phenol in wastewater causes adverse pollution problems and could affect aquatic and human life. Emulsion liquid membrane (ELM) had a high potential possibility to extract phenol from wastewater. The new ELM formulation that consists of Tributyl phosphate (TBP) and Di-(2-ethylhexyl) phosphoric acid (D2EPHA) in kerosene as a synergistic carrier is investigated. Several operating parameters affecting the phenol extraction and stability of W/O/W emulsion through breakage or swelling were studied, such as extraction time, agitation speed, and treat ratio. At the optimum condition of a tre
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Girgin, Ş., N. carkan, M. Sevinç, N. Yüksek, and S. Acarkan. "Comparative study for the solvent extraction of uranium from wet process phosphoric acid using two convenient organic solvents." In The 8th International Mineral Processing Symposium. CRC Press, 2017. http://dx.doi.org/10.4324/9780203747117-95.

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Hsiao, Hsien-Ming, Chang-Liang Hu, Kuang-Li Chien, Wen-Chen Lee, and Tsong-Yang Wei. "Experiment on the Treatment of Waste Extraction Solvent From the Molybdenum-99 Process." In ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icem2013-96218.

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In the Mo-99 (Molybdenum-99) isotope extraction test process for radiopharmaceutical applications, organic solvent is used to extract Mo-99 from an irradiated UO2 dissolution. The extraction solvent was stored when the test work was stopped. A total of about 120 liters of waste solvent was stored at INER (Institute of Nuclear Energy Research, Taiwan). The extraction solvent consisted of 5% di-(2-ethylhexyl)-phosphoric acid (D2EHPA) and kerosene. The radionuclides found in the waste solvent include Cs-137, Am-241, Tc-99, and Sr-90, which give off gross alpha and beta radioactivity of 1898 and 4
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Pablo, Michelle, Joshua Pocaan, Jacob Paulo, et al. "Leaching of calcium from phosphogypsum for carbon sequestration." In Proceedings of XVI International Mineral Processing and Recycling Conference, Belgrade, 28-30.05.2025. University of Belgrade, Technical Faculty, Bor, 2024. https://doi.org/10.5937/imprc25712a.

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Phosphogypsum (PG) is a waste by-product of the production of phosphoric acid from phosphate ores. Despite it being utilized already for building materials, most of the PG is left in stack and stored in large areas. Valorization of this industrial waste is being explored, including its use for carbon sequestration through indirect mineral carbonation. This process involves leaching a metal, usually Ca or Mg, from mineral wastes followed by the reaction of Caor Mg-rich leachate with CO2 to obtain stable and slightly soluble carbonates. PG samples were collected from a fertilizer production plan
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Blagojevic, Ned, Lou Vance, Laurie Aldridge, and Syed A. Malik. "Immobilisation of Contaminated DEHPA Waste in Portland Cement." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4771.

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The immobilisation of organic liquids in cement products can often be difficult when attempts are made to achieve high waste loading. In this work, diethylhexyl phosphoric acid (DEHPA) contaminated with minor amounts of U (1400 ppm), Th (100 ppm) and rare earth elements (17,900 ppm) arising from solvent extraction technology for rare earth extraction from monazite shows promise of immobilisation in ordinary Portland cement (OPC). Waste loadings of up to 50% (v/v) have been achieved at the laboratory scale. The product was allowed to set overnight and had reasonable resistance to leaching after
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Nodirov, A. A., B. E. Sultonov, D. Sh Sherkuziyev, and A. A. Abdulxayev. "Research of the composition of phosphogypsum produced during the extracting of phosphoric acid from mineralized mass by the clinker method." In “INTERNATIONAL CONFERENCE ON PHYSICAL RESEARCH & ENGINEERING TECHNOLOGY PROBLEMS”: (PRETP 2024). AIP Publishing, 2025. https://doi.org/10.1063/5.0269275.

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Reports on the topic "Extraction phosphoric acid"

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Gorecki, H., and K. Grabas. Extraction of uranium(IV) from wet-process phosphoric acid in a small centrifugal extractor. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/7800013.

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Mayer, B. P., A. M. Williams, R. N. Leif, and A. K. Vu. Extraction of Phosphonic Acids from Urine Samples and Analysis by Gas Chromatography with Detection by Mass Spectrometryand Flame Photometric Detection. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1116967.

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Shenker, Moshe, Paul R. Bloom, Abraham Shaviv, et al. Fate of Phosphorus Originated from Treated Wastewater and Biosolids in Soils: Speciation, Transport, and Accumulation. United States Department of Agriculture, 2011. http://dx.doi.org/10.32747/2011.7697103.bard.

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Beneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levelsBeneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levels that impair plant nutrition, increase P loss, and promote eutrophication in downstream waters. This study aims to shed light on the RW- and BS-P forms in soils and to follow the processes that determine P reactivity, solu
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