us9428630b2 - water-in-oil polyacrylamide-based

US9428630B2 - Water-in-oil polyacrylamide-based

A water-in-oil microemulsion, including a polyacrylamide, a fatty acid, a surfactant, an oil continuous phase, and an aqueous discontinuous phase in the oil continuous phase. The fatty acid includes a tall oil fatty acid, oleic acid, or a combination of a tall oil fatty acid and oleic acid. The water-in-oil microemulsion contains 6 to 48 parts by weight of the polyacrylamide, 30 to 62 parts by

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water-in-oil polyacrylamide-based microemulsions and

WATER-IN-OIL POLYACRYLAMIDE-BASED MICROEMULSIONS AND

What is claimed is: 1. A water-in-oil microemulsion, comprising: a polyacrylamide; a fatty acid comprising a tall oil fatty acid, oleic acid, or a combination of a tall oil fatty acid and oleic acid; a surfactant; an oil continuous phase; and an aqueous discontinuous phase in the oil continuous phase, wherein the water-in-oil microemulsion contains 6 to 48 parts by weight of the polyacrylamide

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water-in-oil polyacrylamide-based microemulsions and

WATER-IN-OIL POLYACRYLAMIDE-BASED MICROEMULSIONS AND

The fatty acid includes a tall oil fatty acid, oleic acid, or a combination of a tall oil fatty acid and oleic acid. The water-in-oil microemulsion contains 6 to 48 parts by weight of the polyacrylamide, 30 to 62 parts by weight of the fatty acid, and 20 to 44 parts by weight of the surfactant per 100 parts by weight of the polyacrylamide, the

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water-in-oil microemulsions: counterion effects in aot

Water-in-Oil Microemulsions: Counterion Effects in AOT

Microemulsions have important applications in various industries, including enhanced oil recovery, reactions, separations, drug delivery, cosmetics and foods. We investigated two different kinds of water-in-oil microemulsion systems, AOT (bis(2-ethylhexyl) sulfosuccinate) microemulsions with various counterions and perfluorocarbon-based

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inverse microemulsion polymerization of acrylamide

Inverse microemulsion polymerization of acrylamide

Inverse Microemulsion Polymerization of Acrylamide: Characterization of the Water-in-Oil Microemulsions and the Final Microlatexes FRAN~OISE CANDAU, YEE SING LEONG, GENEVIt~VE POUYET, AND SAUVEUR CANDAU* C.N.R.S., Centre de Recherches sur les Macromoldcules, 6 rue Boussingault, 67083 Strasbourg Cedex, France, and *Laboratoire d'Acoustique Mol~culaire, UniversitLouis Pasteur, 4 rue Blaise

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microemulsions - an overview | sciencedirect topics

Microemulsions - an overview | ScienceDirect Topics

M. de la Guardia, S. Armenta, in Comprehensive Analytical Chemistry, 2011. 5.2.10.2 Microemulsion-based separations. Microemulsions are mixtures of oil, surfactant, and water that form spontaneously on bringing the three components together [69].Microemulsions are thermodynamically stable, and their formation is facilitated by the ultralow interfacial tension of these systems, which leads to

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applications and use of microemulsions - arxiv

Applications and Use of Microemulsions - arXiv

5 M.J. Lawrence, G.D. Rees, Microemulsions-based media as novel drug delivery systems, Advanced Drug Delivery Reviews 45 (2000) 89–121 Microemulsions are usually characterised by ternary phase diagrams, which three edges are the components of a microemulsion, namely, oil, water and surfactant. Any co-

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micelle, microemulsions, and gels for the conservation

Micelle, microemulsions, and gels for the conservation

These may include (a) new “green” surfactant-based self-assembled systems, (b) water-in-oil and waterless cleaning microemulsions for the treatment of contemporary art materials (e.g., acrylic paintings), (c) organogels to be used as support systems for the above-mentioned fluids, and (d) gels that are responsive to different external stimuli.

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1. introduction - hindawi publishing corporation

1. Introduction - Hindawi Publishing Corporation

A novel approach to metal and metal oxide nanoparticle synthesis: the oil-in-water microemulsion reaction method Journal of Nanoparticle Research 2009 11 7 1823 1829 10.1007/s11051-009-9660-8 2-s2.0-70349729881 24 Sanchez-Dominguez M. Pemartin K. Boutonnet M. Preparation of inorganic nanoparticles in oil-in-water microemulsions: a soft and

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semicontinuous microemulsion polymerization - pdf free

Semicontinuous microemulsion polymerization - PDF Free

Boca Raton, FLA: CRC Press. [3] Stoffer JO, Bone T. Polymerization in water-in-oil micro-emulsions systems 1. J Polym Sci Part A: Polym Chem 1980;18:2641–8. [4] Candau F, Leong YS, Pouyet G, Candau S. Inverse microemulsion polymerization of acrylamide — characterization of the water-in-oil microemulsions and the final microlatexes.

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rheological properties in aqueous solution

Rheological Properties in Aqueous Solution

Inverse emulsion polymerization technique was employed to synthesize hydrophobically modified polyacrylamide polymers with hydrophobe contents near to feed composition. Three different structures were obtained: multisticker, telechelic, and combined. N-Dimethyl-acrylamide (DMAM), n-dodecylacrylamide (DAM), and n-hexadecylacrylamide (HDAM) were used as hydrophobic comonomers. The effect of the

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solubilization and thermal properties of microemulsions

Solubilization and thermal properties of microemulsions

2.3 Solubility of Water in the Alcohol-Free Water-in-Oil Microemulsions The combination of Arlacel 20 and AOT was chosen from the several combinations of nonionic and anionic surfactants because this combination had been found to be the best system for the solubilization of water in the w/o microemulsions in a previous study (208).

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effect of surfactant on the viscoelastic behavior

Effect of Surfactant on the Viscoelastic Behavior

The interactions between well-defined hydrophobically modified polyacrylamides (HMPAM) and the anionic surfactant SDS (sodium dodecyl sulfate) or the cationic surfactant DTAB (dodecyltrimethylammonium bromide) were studied in aqueous solution using steady-flow and oscillatory rheological experiments. The structure of the HMPAM used consists of randomly distributed blocks of hydrophobic

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cofe2o4-tio2 hybrid nanomaterials: synthesis approaches

CoFe2O4-TiO2 Hybrid Nanomaterials: Synthesis Approaches

CoFe2O4-TiO2 Hybrid Nanomaterials: Synthesis Approaches Based on the Oil-in-Water Microemulsion Reaction Method Journal of Nanomaterials , Mar 2017 Arturo Adrián Rodríguez-Rodríguez , Sagrario Martínez-Montemayor , César Cutberto Leyva-Porras , Francisco Enrique Longoria-Rodríguez , Eduardo Martínez-Guerra , Margarita Sánchez-Domínguez

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review of surfactant-assisted chemical enhanced oil

Review of surfactant-assisted chemical enhanced oil

A significant fraction of the conventional oil reserves globally is in carbonate formations which contain a substantial amount of residual oil. Since primary and secondary recovery methods fail to yield above 20%–40% of original oil in place from these reserves, the need for enhanced oil recovery (EOR) techniques for incremental oil recovery has become imperative.

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review of surfactant-assisted chemical enhanced oil

Review of surfactant-assisted chemical enhanced oil

Review of surfactant-assisted chemical enhanced oil recovery for carbonate reservoirs: challenges and future perspectives Sreela Pal 0 1 2 M. Mushtaq 0 1 2 Fawzi Banat 0 1 2 Ali M. Al Sumaiti 0 1 2 0 Edited by Yan-Hua Sun 1 Department of Petroleum Engineering, Khalifa University of Science and Technology, SAN Campus , Abu Dhabi, UAE 2 & Fawzi Banat A significant fraction of the conventional

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semicontinuous microemulsion polymerization - pdf free

Semicontinuous microemulsion polymerization - PDF Free

Boca Raton, FLA: CRC Press. [3] Stoffer JO, Bone T. Polymerization in water-in-oil micro-emulsions systems 1. J Polym Sci Part A: Polym Chem 1980;18:2641–8. [4] Candau F, Leong YS, Pouyet G, Candau S. Inverse microemulsion polymerization of acrylamide — characterization of the water-in-oil microemulsions and the final microlatexes.

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solubilization and thermal properties of microemulsions

Solubilization and thermal properties of microemulsions

SOLUBILIZATION AND THERMAL PROPERTIES OF MICROEMULSIONS BY HYEON KOOK LEE A DISSERTATION PRESENTED TO THE GRADUATE SCHOOL OF THE UNIVERSITY OF FLORIDA IN PARTIAL

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us7468402b2 - polymeric nanoemulsion as drag reducer

US7468402B2 - Polymeric nanoemulsion as drag reducer

Polymeric nanoemulsions facilitate flow and reduce drag and friction in multiphase pipelines containing both oil and water (e.g., oil/water, oil/water/gas, oil/water/solids, and oil/water/gas/solids) such as are used for oil or gas production, gathering, and transmission; hydrotransport of oilsand or heavy oil slurries and the like.

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1. introduction - hindawi publishing corporation

1. Introduction - Hindawi Publishing Corporation

Water-soluble associating polymers have been studied extensively due to their rheological characteristics in aqueous solution. These materials are structured by a water-soluble backbone where a small amount of hydrophobic groups is inserted, distributed randomly or as microblocks, in the main polymer chain (multisticker), at both extremes of it (telechelic) or along the macromolecular chain as

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effect of surfactant on the viscoelastic behavior

Effect of Surfactant on the Viscoelastic Behavior

The interactions between well-defined hydrophobically modified polyacrylamides (HMPAM) and the anionic surfactant SDS (sodium dodecyl sulfate) or the cationic surfactant DTAB (dodecyltrimethylammonium bromide) were studied in aqueous solution using steady-flow and oscillatory rheological experiments. The structure of the HMPAM used consists of randomly distributed blocks of hydrophobic

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us patent # 5,108,643. stable microemulsion cleaning

US Patent # 5,108,643. Stable microemulsion cleaning

Stable microemulsion cleaning composition Abstract. Stable microemulsion cleaning compositions are described which, in the absence of opacifying component, appear clear to the eye, and which are especialy useful for cleaning surfaces having oily or greasy soils thereon, which comprise synthetic organic detergent, water, co-surfactant of a described type, and perfume (or equivalent hydrocarbon).

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organic nanoparticles in foods: fabrication

Organic Nanoparticles in Foods: Fabrication

The Annual Review of Food Science and Technology, in publication since 2010, covers current and significant developments in the multidisciplinary field of food science and technology. The topics will include: food microbiology, food-borne pathogens, and fermentation; food engineering, chemistry, biochemistry, rheology, and sensory properties; novel ingredients and nutrigenomics; emerging

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sci.upc.edu.cn

sci.upc.edu.cn

Measuring Oil and Water Relative Permeability in a Single Fracture and Researching Its Impacting Factors 21 2191-2201 [Dong, Z.; Aifen, L.; Qiang, S.; Yanqing, F.] China Univ Petr East China, Sch Petr Engn, Qingdao 266555, Shandong, Peoples R China

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osti.gov journal article: characterization and oil

OSTI.GOV Journal Article: Characterization and oil

Synthetic sulfonates for application in enhanced oil recovery are of increasing interest. Because of the need to explore the range of candidates potentially available at various costs from the petrochemical industry, a series of nine samples was prepared for distribution with financial support of

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prediction of diffusion coefficients for nonelectrolytes

Prediction of diffusion coefficients for nonelectrolytes

Guanli Shu, Mingzhe Dong, Hassan Hassanzadeh and Shengnan Chen, Effects of Operational Parameters on Diffusion Coefficients of CO 2 in a Carbonated Water–Oil System , Industrial & Engineering Chemistry Research, 10.1021/acs.iecr.7b02546, 56, 44, (12799-12810), (2017).

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presentations - dr. zhenghe xu

Presentations - Dr. Zhenghe Xu

Xu, Z., Recent innovations in oil sands engineering: Contributions from NSERC IRC in Oil Sands Engineering, Honourary Symposium in Recognition of Jacob Masliyah for Outstanding Contributions in Heavy Oil Processing, 67th Canadian Chemical Engineering Conference (CSChE), Edmonton, AB, Canada, October 22-25, 2017.

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us patent # 5,108,643. stable microemulsion cleaning

US Patent # 5,108,643. Stable microemulsion cleaning

Stable microemulsion cleaning composition Abstract. Stable microemulsion cleaning compositions are described which, in the absence of opacifying component, appear clear to the eye, and which are especialy useful for cleaning surfaces having oily or greasy soils thereon, which comprise synthetic organic detergent, water, co-surfactant of a described type, and perfume (or equivalent hydrocarbon).

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method of treating oil or gas well with biodegradable

Method of treating oil or gas well with biodegradable

A biodegradable water-in-synthetic oil base emulsion, effective in the removal of filter cakes, consists of an external phase of a surfactant emulsified in a paraffinic base oil. The emulsion is particularly effective in breaking-down the interfacial rheological properties of oil base mud and synthetic oil base mud filter cakes and acts as a

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sci.upc.edu.cn

sci.upc.edu.cn

Measuring Oil and Water Relative Permeability in a Single Fracture and Researching Its Impacting Factors 21 2191-2201 [Dong, Z.; Aifen, L.; Qiang, S.; Yanqing, F.] China Univ Petr East China, Sch Petr Engn, Qingdao 266555, Shandong, Peoples R China

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hidrogeles nanoestructurados termosensibles sintetizados

Hidrogeles nanoestructurados termosensibles sintetizados

Microstructured polyacrylamide hydrogels prepared via inverse microemulsion polymerization. Journal of Colloid and Interface Science 235 (2), 278–282. [ Links ] Sasaki S. y Okabe S. (2010). Thermodynamic properties of N–isopropylacrylamidein water: Solubility transition, phase separation of supersaturated solution, and glass formation.

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analytical methods in petroleum upstream

Analytical Methods in Petroleum Upstream

The spectrometer detects the specific fingerprint of the oil present in the water, and should the oil in the water change in composition, the spectrometer will generate 1.40000E-04 Benchamas crude (50 ppm) 1.20000E-04 Intensity 1.00000E-04 PX0191 (0.03% solution 300 ppm) Benchamas (50 ppm + 0.03% PX0191) 8.00000E-05 6.00000E-05 4.00000E-05 2

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