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Highly Active, Nonprecious Electrocatalyst Comprising ...

 · Developing nonprecious hydrogen evolution electrocatalysts that can work well at large current densities (e.g., at 1000 mA/cm2: a value that is relevant for practical, large-scale applications) is of great importance for realizing a viable water-splitting technology. Herein we present a combined theoretical and experimental study that leads to the identification of α …

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LIQUID CLEANING COMPOSITIONS COMPRISING …

 · The present invention relates to a surfactant-containing liquid composition based on magnesium salt of primary alcohol sulfate, comprising a) (i) a primary alcohol sulfate and (ii) a nonionic surfactant, wherein 50 wt.% Of the surfactant is present. At least% is primary alcohol sulphate, 2-40% by weight of surfactant containing less than 1% ...

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FIRE-FIGHTING AGENTS CONTAINING POLYSACCHARIDES …

1. A fire-fighting concentrate composition comprising (a) a fluorochemical oligomer having a plurality of pendent fluoroaliphatic groups, (b) one or more fluorochemical surfactant and one or more non-fluorinated surfactant, (c) polysaccharide, and (d) water.

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Surfactants for hydrocarbon recovery - BJ SERVICES …

Method for heat exchange fluids comprising viscoelastic surfactant compositions ... This fluoroaliphatic moiety can be linear, branched or cyclic, preferably linear, and can contain an occasional carbon-bonded hydrogen or halogen other than fluorine, and can contain an oxygen atom or a trivalent nitrogen atom bonded only to carbon atoms in the ...

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US Patent for Mist suppressant for solvent ... - Justia

(c) contacting said metal-bearing organic solution with aqueous strip solution comprising strong acid and less than or equal to 0.02 weight percent of fluoroaliphatic surfactant, said surfactant having at least one cationogenic group which is the radical of a base having an ionization constant in water at 25.degree.

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Surfactants for hydrocarbon recovery - Patent application

 · This invention provides compositions comprising an aqueous well fluid and at least one nonionic acetylenic alcoholic surfactant. The compositions may further comprise at least one fluoroaliphatic surfactant. Methods for recovery of aqueous well fluids involving the use of at least one nonionic acetylenic alcoholic surfactant are also provided ...

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Acid leaching of copper ore heap with fluoroaliphatic ...

U.S. Pat. No. 4,484,990 (Bultman et al.) describes a process for recovery of metal values, such as copper, comprising electrowinning said metal values from electrolyte containing sufficient fluoroaliphatic surfactant to provide mist-inhibiting on the surface of said electrolyte, said surfactant having at least one cationogenic group which ...

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Ink compositions comprising surfactants having limited ...

 · surfactant is selected from alkoxylated alkyne-containing alkylene diols and N-alkyl pyrrolidones, and wherein the first surfactant has a solubility of less than 0.5% in a 5% glycerol/water mixture, and where the a second surfactant is selected from acetylene alcohols comprising linear or branched C1-C14 alkyls, and alkoxylated phosphate esters.

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PROCESS FOR THE PREPARATION OF FLUOROALIPHATIC ...

 · PROCESS FOR THE PREPARATION OF FLUOROALIPHATIC AMINOCARBOXYLATE SURFACTANTS. STERN RICHARD M, ALM ROGER R, GUENTHNER RICHARD A, WILKINSON THOMAS K. Author information. Affiliations. All authors. 1. MINNESOTA MINING AND MANUFACTURING COMPANY Patent: Publ.of the ...

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3M™ Fluorosurfactant FC-4434 | 3M United States

3M™ Fluorosurfactant FC-4434 is a non-ionic polymeric fluorochemical that offers excellent wetting, leveling and flow control in a variety of coating systems. It lowers surface tension and significantly outperforms many hydrocarbon and silicone-based surfactants. In addition, this product can provide stain and dirt pick up resistance by making the coating surface oleophobic.

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Nonionic Surfactant - an overview | ScienceDirect Topics

Nonionic surfactants represent a major component material for applications ranging from personal care to a wide range of industrial uses. Structurally, nonionic surfactants combine uncharged hydrophilic and hydrophobic group that make them effective in wetting and spreading and as emulsifiers and ing agents.

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Stepan

 · Applications BIO-SOFT S -101 is an economical and versatile, biodegradable surfactant intermediate. This product can be neutralized with a variety of inorganic bases and organic amines to give a wide range of sulfonates with the properties of your choice. BIO -SOFT S -101 can be use d to make both liquid and dry products, and left

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CONDITIONING COMPOSITION COMPRISING DUAL …

Disclosed is a conditioning composition comprising: (a) from about 0.1% to about 10% of a surfactant system comprising: di- and mono-alkyl quaternized ammonium salt cationic surfactants; (b) from about 1% to about 15% of a high melting point fatty compound; (c) from about 0.1 % to about 20% of an aminosilicone; (d) from about 0.0001% to about 10% of a silicone resin; and …

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US Patent for Mist suppressant for solvent ... - Justia

 · The method of claim 1 wherein said surfactant is (R.sub.f).sub.n (Q).sub.x Z wherein R.sub.f is a fluoroaliphatic radical containing 4 to 8 carbon atoms, n is 1 or 2, Q is a linking group, x is 0 or 1, and Z is a water-solubilizing polar group or moiety such that the fluoroaliphatic surfactant is not significantly extracted into the organic ...

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Compositions Comprising Taurate Surfactants and ... - Justia

 · A bar soap composition is made from ingredients comprising: at least one cleanser chosen from soap and a first surfactant; and at least one taurate surfactant chosen from a salt of a fatty acid amide of taurine, a salt of a fatty acid amide of N-methyl taurine, and combinations thereof. The taurate surfactant is different than the first surfactant.

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Detergents and surfactants: a brief review - MedCrave …

 · the group comprising urea, guanidine and its salts, thiourea, biuret, thiobiuret and the water soluble alkyl, alkylol and acyl derivatives of these materials, alkanolamines, ammonia, and mixtures 2%-20% by weight, and (e) 20% to 88.5% water in a pH of 9.5 at 20 °C. Their used anionic surfactants were potassium lauryl alkyl sulfate, sodium

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Surfactant-guided spatial assembly of nano-architectures ...

 · Surfactant-guided spatial assembly of nanomaterials. Surfactants are amphiphilic and demonstrate distinct interactions with MOFs and nanoparticles, respectively 26,27.We thus leverage surfactants ...

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Leaching of precious metal ore with fluoroaliphatic ...

EP-0782634-A1 chemical patent summary.

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Particles comprising surfactant protein b and one or more ...

 · The coatings of the present invention in particular comprise surfactant protein B (SP-B) and one or more lipids. The invention further relates to such coated particles and compositions comprising them for use as a medicament, in particular for use in the treatment of various disorders. Furthermore, the invention provides the use of the ...

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Heat-Curable Hybrid Epoxy Functional Composition and ...

 · Preferred surfactants are fluorinated surfactant such as Novec® FC-4434 from 3M (non ionic surfactant comprising fluoroaliphatic polymeric esters), Unidyne™ NS-9013, and EFKA® 3034 from CIBA (fluorocarbon-modified polysiloxane).

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US Patent for Reduction of surface tension Patent ... - Justia

 · A composition for reducing surface tension comprising from about 0.1% to about 0.5% by weight of a hydrocarbon surfactant and from 0.0001% to about 0.3% by weight of a fluorocarbon surfactant, provided that the hydrocarbon surfactant is present at less than or equal to 0.08% by weight when the fluorocarbon surfactant is present at greater than or equal to …

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Magnetoresponsive biocomposite hydrogels comprising ...

comprising gelatin and valine based magnetic ionic liquid surfactant as controlled release nanocarrier for drug delivery† Akshay Kulshrestha, ab Sanjay Sharma,c Kuldeep Singhab and Arvind Kumar *ab The utilization of biopolymer hydrogels has been challenging due to the lack of controllability, actuation, and quick-response properties.

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Aqueous film-forming able solution useful as fire ...

The Concentrate B is a solution composition comprising fluoroaliphatic surfactants, and an alkyl ether sulfate hydrocarbon surfactant. In Concentrate B, the fluoroaliphatic film-forming surfactants advantageously include both a fluoroaliphatic amphoteric surfactant and a fluoroaliphatic anionic surfactant.

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Lubricant additive composition containing nonionic ...

1. A substantially particulate-free homogeneous liquid lubricant comprising: between about 0.33 percent and about 0.46 percent by weight of a first surfactant comprising: a nonionic fluorochemical surfactant selected from the group consisting of fluoroaliphatic oxyethylene adducts and fluoroaliphatic oxypropylene adducts;

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Leaching of precious metal ore with fluoroaliphatic ...

Leaching of precious metal ore with fluoroaliphatic surfactant - Patent ZA-9507200-B - PubChem. National Center for Biotechnology Information. 8600 Rockville Pike, Bethesda, MD, 20894 USA. Contact. Policies. FOIA. HHS Vulnerability Disclosure. National Library of Medicine. National Institutes of Health.

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Deformable Self-Propelled Micro-Object Comprising ...

 · First, surfactant molecules begin to adsorb onto the droplet surfaces, and heterogeneity of droplet surfaces is induced by non-uniform surfactant concentrations, as well as by thermal fluctuations.

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Leaching of precious metal ore with fluoroaliphatic …

Said aqueous solution comprising fluoroaliphatic surfactant can, therefore, be a pretreatment aqueous solution or the aqueous solution used to extract the precious metal. The precious metal can be extracted and recovered by conventional means. Gold and silver are typically extracted with a high pH (10 to 11.5), lime-containing, aqueous alkaline ...

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 · .pdf,2008 2 35 178 WWW.gdchem.com 13 , (1., 472300;2. ...

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Leaching of precious metal ore with fluoroaliphatic …

 · The method of claim 1, wherein the fluoroaliphatic surfactant is a polymer comprising (i) at least 40% by weight of interpolymerized units derived from C n F 2n +1 (SO 2 NR 1) a (CH 2) b OC(O)C(R 2) CH 2, where a is 0 or 1 and b is 1 to 12, (ii) at least 5% by weight of interpolymerized units derived from sulfonic acid containing, or sulfonic ...

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SURFACTANT in Thesaurus: 25 Synonyms & Antonyms for …

Deinkers comprising a non-ionic surfactant and ethylene glycol. ... Preferably the surfactant is a fluoroaliphatic polymer ester. Purpose: stimulation of surfactant in the premature foal. The stripped surfactant is dissolved in ethyl acetate. Ad-free experience & …

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