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7226896 |
Organic emulsion-breaking formula and its use in treating well bores drilled in oil-base mud
An organic based emulsion-breaking formulation for use in treating well bores drilled in oil-bearing mud that is not eco-toxic and is optimally compatible with formation fluids comprises: as the...
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5921912 |
Copolmer formulations for breaking oil-and-water emulsions
A method of breaking oil-in-water and water-in-oil emulsions in crude oil processing systems in which copolymers incorporating a hydrophilic cationic monomer subunit and a lipophilic nonionic...
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5635112 |
Hydrophobically-modified demulsifiers for oil-in-water systems
A method for breaking an oil-in-water emulsion which comprises the addition of a hydrophobically-modified polyelectrolyte copolymer comprising a diallyldimethylammonium chloride and a...
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5597513 |
Demulsifier composition and method of use
The present invention deals with compositions utilized to demulsify wash liquors, tramp oils or coolants. The compositions of the present invention are useful per se as cleaning compositions. The...
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5332507 |
Recovery of oil from waste oil fluids
The invention provides a method of recycling waste oil fluids including dispersed solids and emulsified water. According to the method, the waste oil is treated with an effective amount of a...
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5330656 |
Polysalt compositions and the use thereof for treating an oil and water system
A method for treating a waste system containing an oil phase dispersed on a water phase is disclosed that includes adding a polysalt having an anionic polymer component and a cationic polymer...
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5294347 |
Dispersion polymers for ethylene quench water clarification
One aspect of the invention provides a method of removing emulsified oil from ethylene quench water. According to the method, the oil-containing water is treated with an effective amount of a...
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5032285 |
Reverse emulsion breaking method using amine containing polymers
A method for resolving an oil-in-water emulsion by dosing the water to be resolved with a polymer produced by the emulsion polymerization of only hydrophobic monomers where at least one monomer is...
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5021167 |
Method for separating liquid from water using amine containing polymers
A method is disclosed for clarifying water comprising dosing the water to be clarified with a copolymer produced by the emulsion polymerization of only hydrophobic monomers where at least one...
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4734205 |
Hydrophobically associating polymers for oily water clean-up
The present invention teaches an improved process for clean-up of waste waters containing organic contaminants. In addition, the process is useful for breaking or resolving oil-in-water emulsions,...
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4734523 |
Oxalkylated polyester-amines, a process for their preparation and their use
Oxalkylated polyester-amines which are prepared by esterifying, with polycondensation, an oxalkylated primary fatty amine with a diol and with a dicarboxylic acid, are described. These...
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4457371 |
Method for demulsification of bitumen emulsions
A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are polymers of specific quaternary ammonium monomers...
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4405015 |
Demulsification of bitumen emulsions
A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are salts of polymers and/or co-polymers of specific...
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4387017 |
Demulsification of bitumen emulsions using polymers of diquaternary ammonium monomers containing hydroxyl groups
A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are polymers of diquaternary ammonium monomers...
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4382853 |
Demulsification of bitumen emulsions using combinations of chemical agents
A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are combinations of chemical agents comprising (a)...
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4342657 |
Method for breaking petroleum emulsions and the like using thin film spreading agents comprising a polyether polyol
The invention relates to a method of breaking petroleum emulsions, by utilization of a homogeneous, micellar solution of a water-insoluble thin film spreading agent comprising: (a) from between...
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4326968 |
Method for breaking petroleum emulsions and the like using micellar solutions of thin film spreading agents comprising polyepoxide condensates of resinous polyalkylene oxide adducts and polyether polyols
The invention relates to the use of a homogeneous, micellar solution of a water-insoluble thin film spreading agent comprising polyepoxide condensates of resinous polyalkylene oxide adducts and...
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4306981 |
Method for breaking petroleum emulsions and the like comprising resinous polyalkylene oxide adducts
The invention relates to a method of breaking petroleum emulsions by utilization of a micellar solution of a water-insoluble thin film spreading agent, comprising: (a) from between about 5% and...
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4154698 |
Resolution of oil-in-water emulsions containing uranium
A method of resolving oil-in-water emulsions resulting from the organic solvent extraction of uranium from aqueous acidic leach liquors which comprises treating said emulsions in accordance with...
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3873452 |
ACIDIZING OIL WELLS
When oil wells are acidized, troublesome emulsions frequently form. Such emulsions are prevented by adding to the acid a polyester and a quaternary ammonium compound. The quaternary ammonium...
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3676340 |
COMBINATIONS OF DETERGENTS WITH CONTROLLED FOAMING PROPERTIES AND WASHING AGENTS CONTAINING THEM
This invention relates to a combination of anionic and/or non-ionic surface-active compounds together with a foam stabilizer and a foam inhibitor active at temperatures above 60° C, said ...
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3468932 |
DERIVATIVES OF POLYAMINECARBOXYLIC ACIDS
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3468818 |
POLYMERS AND PROCESS OF PREPARATION
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3340193 |
Mineral oil containing alkyl polymethacrylate antifoamant
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3259587 |
Demulsification
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