Academic literature on the topic 'Alkyl Ether Carboxylate'

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Journal articles on the topic "Alkyl Ether Carboxylate"

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Liepa, AJ, AJ Liepa, JS Wilkie, JS Wilkie, KN Winzenberg, and KN Winzenberg. "Preparation of Some 1-Alkyl-4-[1-(ethoxyimino)butyl]-3-hydroxy-5-oxocyclohex-3-ene-1-carboxylic Acid Ester and Amide Herbicides by Reductive Alkylation of 3,5-Dimethoxybenzoic Acid." Australian Journal of Chemistry 42, no. 8 (1989): 1217. http://dx.doi.org/10.1071/ch9891217.

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Reductive alkylation of 3,5-dimethoxybenzoic acid with haloalkanes afforded the 1-alkyl- 3,5-dimethoxycyclohexa-2,5-diene-1-carboxylic acid derivatives (3a-e) which, upon esterification and hydrolysis, furnished methyl 1-alkyl-3-hydroxy-5-oxocyclohex-3-ene-l-carboxylate derivatives (4f-j). Reaction of (4f-j) with butyric anhydride gave methyl 1-alkyl-4-butyryl- 3-hydroxy-5-oxocyclohex-3-ene-1-carboxylate derivatives (6a-e) which were converted into methyl 1-alkyl-4-[1-( ethoxyimino )butyl]-3-hydroxy-5-oxocyclohex-3-ene-1-carbo xyate derivatives (2a-e). Similarly, the oxime O-ether derivative (
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Yue, Xiu, Xiaoyun Fan, Qintang Li, Xiao Chen, and Chuanyi Wang. "Aggregation behaviors of alkyl ether carboxylate surfactants in water." Journal of Molecular Liquids 227 (February 2017): 161–67. http://dx.doi.org/10.1016/j.molliq.2016.12.010.

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Liu, Ziyu, Lei Zhang, Xulong Cao, et al. "Effect of Electrolytes on Interfacial Tensions of Alkyl Ether Carboxylate Solutions." Energy & Fuels 27, no. 6 (2013): 3122–29. http://dx.doi.org/10.1021/ef400458q.

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Myrdek, Thomas, Crisan Popescu, and Werner Kunz. "Physical-chemical properties of newly synthesized tetraalkylammonium alkyl ether carboxylate ionic liquids." Journal of Molecular Liquids 322 (January 2021): 114947. http://dx.doi.org/10.1016/j.molliq.2020.114947.

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Yang, Zhiqiang, Benjamin J. Dennis-Smither, Zhuoran Xu, et al. "Kinetic and Spectroscopic Studies of Methyl Ester Promoted Methanol Dehydration to Dimethyl Ether on ZSM-5 Zeolite." Chemistry 5, no. 1 (2023): 511–25. http://dx.doi.org/10.3390/chemistry5010037.

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Methyl carboxylate esters have been shown to be potent promoters of low-temperature methanol dehydration to dimethyl ether (DME) using various zeolite catalysts. In the present work, catalytic kinetic studies, in-situ Fourier-transform infrared spectroscopy (FT-IR) and solid-state nuclear magnetic resonance spectroscopy (NMR) techniques were used to elucidate the promotional mechanism of methyl carboxylate esters on methanol dehydration to DME, using the medium pore zeolite H-ZSM-5 (MFI) as the catalyst. Kinetic studies were performed using the very potent methyl n-hexanoate promoter. The DME
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Warashina, Takuya, Daisuke Matsuura, Tetsuya Sengoku, Masaki Takahashi, Hidemi Yoda, and Yoshikazu Kimura. "Regioselective Formylation of Pyrrole-2-Carboxylate: Crystalline Vilsmeier Reagent vs Dichloromethyl Alkyl Ether." Organic Process Research & Development 23, no. 4 (2018): 614–18. http://dx.doi.org/10.1021/acs.oprd.8b00233.

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Xu, Hujun, and Yuanhong Xu. "Study of the Complex System of Fatty Alcohol Polyoxyethylene Ether Carboxylate and Alkyl Betaine for Heavy Oil Recovery." Tenside Surfactants Detergents 54, no. 6 (2017): 546–50. http://dx.doi.org/10.3139/113.110532.

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Denk, Patrick, Asmae El Maangar, Jyotsana Lal, David Kleber, Thomas Zemb, and Werner Kunz. "Phase diagrams and microstructures of aqueous short alkyl chain polyethylene glycol ether carboxylate and carboxylic acid triblock surfactant solutions." Journal of Colloid and Interface Science 590 (May 2021): 375–86. http://dx.doi.org/10.1016/j.jcis.2021.01.061.

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Yunusov, Timur, Alexandra Scerbacova, Aliya Mukhametdinova, Denis Bakulin, and Alexey Cheremisin. "Investigation of alkyl ether carboxylate surfactant flooding efficiency in carbonate reservoirs using NMR and X-ray in situ saturation monitoring techniques." Fuel 400 (November 2025): 135820. https://doi.org/10.1016/j.fuel.2025.135820.

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MD AKHIR, NUR ASYRAF, AFIF IZWAN ABD HAMID, ISMAIL MOHD SAAID, and ANITA RAMLI. "THE EFFECT OF HARDNESS AND TEMPERATURE ON INTERFACIAL TENSION OF INDIVIDUAL AND MIXED SURFACTANT SYSTEM." Science Proceedings Series 2, no. 1 (2020): 62–65. http://dx.doi.org/10.31580/sps.v2i1.1280.

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Surfactant flooding is one of the chemical enhanced oil recovery (CEOR) techniques that can be used to improve oil recovery. The surfactant injection reduces the oil-water interfacial tension and mobilizes residual oil towards the producing well. In this paper, the performance of alkyl ether carboxylate (AEC) and calcium lignosulfonate (CLS) in individual and mixed surfactant systems were investigated based on their ability to reduce the interfacial tension through a spinning drop method. The interfacial tensions of individual and mixed surfactant systems in different brine systems were measur
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Book chapters on the topic "Alkyl Ether Carboxylate"

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Taber, Douglass. "Preparation of Benzene Derivatives: The Barrett Syntheses of Dehydroaltenuene B and 15G256β." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0064.

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Several new methods for the direct functionalization of Ar-H have appeared. Hisao Yoshida of Nagoya University observed (Chem. Comm. 2008, 4634) that under irradiation, TiO2 in water effected meta hydroxylation of benzonitrile 1 to give the phenol 2. Anisole showed ortho selectivity, while halo and alkyl aromatics gave mixtures. Melanie S. Sanford of the University of Michigan reported (J. Am. Chem. Soc. 2008, 130, 13285) a complementary study of Pd-catalyzed ortho acetoxylation. Jin-Quan Yu of Scripps/La Jolla developed (Angew. Chem. Int. Ed. 2008, 47, 5215) a Pd-catalyzed protocol for ortho
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Conference papers on the topic "Alkyl Ether Carboxylate"

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Jürgenson, G. Alvarez, C. Bittner, V. Kurkal-Siebert, G. Oetter, and J. Tinsley. "Alkyl Ether Carboxylate Surfactants for Chemically Enhanced Oil Recovery in Harsh Field Conditions." In SPE Asia Pacific Enhanced Oil Recovery Conference. Society of Petroleum Engineers, 2015. http://dx.doi.org/10.2118/174589-ms.

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Wilson, Daniel, Carla Morgan, Thu Nguyen, and Nhut Nguyen. "Adsorption Study of Extended Carboxylate Surfactants for High Temperature Carbonate Reservoir Enhanced Oil Recovery." In SPE Conference at Oman Petroleum & Energy Show. SPE, 2022. http://dx.doi.org/10.2118/200070-ms.

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Abstract It is estimated that over 50% of the world's oil reserves are tied up in carbonate reservoirs. Predominantly, these reservoirs are oil wet in nature and as such, make sufficient primary and secondary recovery complex. Chemicals are considered as one of the more effective enhanced oil recovery (EOR) sources, but are often complicated by temperature and salinity parameters. Extended carboxylate surfactants have been proven to be effective molecules to positively interact with crude oil at higher reservoir extremes. In this study, adsorption of alkyl ether carboxylate extended surfactant
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Herman, George, Nicole Lichterfeld-Weber, and Christian Bittner. "Unique Synergistic Surfactant Mixture to Match Ultralow Interfacial Tension with Solubility at High Temperature and High Salinity." In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/211435-ms.

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Abstract Chemical enhanced oil recovery offers the huge benefit to reduce the carbon footprint in oil production. Mature oil fields with existing infrastructure can be turned into fields with higher productivity. Thereby, costly exploration of new fields can be avoided. The rejuvenation of mature oil fields can be achieved by surfactant flooding. Well-designed surfactants can reduce the tension between crude oil and water to ultralow values and thereby mobilize physically trapped oil. With respect to fields of high salinity and elevated temperature, it is particularly challenging to match the
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Nguyen, Nhut, Thu Landry, Carla Morgan, Cornell Stanciu, and Quoc Nguyen. "Surfactant Blends for Steam Foam Applications Up to 570°F (~300°C)." In SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210333-ms.

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Abstract Steam injection with foam presence (steam foam) was successfully implemented in the 1970’s and 1980’s. The purpose of having steam foam as a mobility control agent was to improve sweep efficiency by minimizing detrimental effects associated with steam injection processes such as viscous fingering, gravity override, loss to thief zones, etc. Previous works, published in SPE-190473-MS and SPE-193634-MS, discussed results on thermal stability and foamability of Alkyl Ether Carboxylate Acid (ECA) at temperatures up to 200°C-250°C in the presence/absence of bitumen. This paper, as a contin
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Scerbacova, Alexandra, Ahmed Barifcani, Chi Phan, and Alexey Cheremisin. "Investigation of Anionic-Nonionic Surfactants for EOR in Carbonate Reservoirs." In Gas & Oil Technology Showcase and Conference. SPE, 2023. http://dx.doi.org/10.2118/214104-ms.

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Abstract In this work, four linear alkyl ether carboxylates (AECs) C11E5A, C11E11A, C12E4A, and C12E7A were examined as agents for surfactant EOR. Their main properties that have a key effect on surfactants' performance during flooding were investigated: stability, interfacial tension (IFT), wetting ability, and spontaneous imbibition in limestone samples. The thermal stability and salinity tolerance was correlated with the molecular structure of AECs. IFT on the boundary with n-decane and crude oil was evaluated with the spinning drop tensiometry method at five temperatures in the range betwe
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