Nalco Chemical Company

Nalco Company

Ondeo Nalco Company

Conopco, Inc.

Nalco/exxon Energy Chemicals,l.p.

Ananthasubramanian Sivakumar

Manian Ramesh

Wesley Lamar Whipple

Cathy C Johnson

Jitendra T Shah

Angela P Zagala

Chidambaram Maltesh

Tracey M Guddendorf

William J Ward

Anthony G Sommese

Michael L Braden

Wayne M Carlson

Patrick G Murray

John H Collins

David W Scheimann

Radhakrishnan Selvarajan

Robert A Marble

Pankaj Chandrakant Shah

Venkareswaran Krishnan

Nandini Sachin Dabholkar

Tracey Guddendorf

Wesley L Whipple

A rinse off liquid or gel cleansing composition comprising a continuous phase comprising one or more detergent actives and a dispersed phase comprising one or more hydrophobic materials, the dispersed phase comprising a water soluble or dispersible benefit agent which is sensitive to a detergent active and/or high pH, which benefit agent is dispersed in the hydrophobic material.

Detergent composition with benefit agents

A water-soluble, cationic polymer comprising from about 1 to about 65 mole percent of one or more cationic monomers, from about 99 to about 35 mole percent of one or more nonionic monomers and from about 1 to about 1000 ppm, based on the total monomer content, of one or more hyperbranched monomers wherein the hyperbranched monomer contains from about 2 to about 20 allyl, vinyl, or acrylic end groups and method of dewatering sludge is disclosed.

Polymers containing hyperbranched monomers

This invention is directed to structurally-modified water-soluble polymers prepared by initiating polymerization of an aqueous solution of monomers under free radical polymerization conditions to form a polymer solution and adding at least one structural modifier to the polymer solution after at least 30% polymerization of the monomers has occurred, and to use of the water-soluble cross-linked polymers as flocculating agents.

Structurally-modified polymer flocculants

A cationic latex terpolymer prepared by polymerizing from about 1 to about 99.1 mole percent of one or more cationic monomers, from about 0.9 to about 5 mole percent of one or more hydroxyalkyl (meth)acrylates and from 0 to about 98.1 mole percent of one or more nonionic monomers is useful for dewatering sludge.

Cationic latex terpolymers for sludge dewatering

Cationic latex terpolymers for wasterwater treatment

Very high molecular weight cationic dispersion polymers for dewatering animal farm wastewater

Demulsification of a water-in-oil, especially a water-in-crude oil, emulsion is effected by contacting it with an aqueous composition having at least one oil-soluble demulsifier and at least one water-soluble surfactant. These aqueous formulations are advantageous over conventional organic formulations of demulsifiers, as the need for toxic and/or flammable/combustible organic solvents is eliminated.

Aqueous dispersion of an oil soluble demulsifier for breaking crude oil emulsions

A method for removing emulsified oil from industrial waste water streams utilizing dispersion copolymers is disclosed. Preferred dispersion copolymers are poly(dimethylaminoethylacrylate methyl chloride quaternary salt/acrylamide) and poly (diallyldimethyl ammonium chloride/acrylamide).

Use of hydrophilic dispersion polymers for oily wastewater clarification

The invention provides a method of removing emulsified oil from an industrial wastewater stream. According to the method, a vinylamine polymer is added to the oil containing wastewater in a concentration of from about 0.1 to about 100 parts per million based on the total volume of the water being treated. The vinylamine polymer includes from about 1 to about 100 mole percent vinylamine and from about 1 to about 99 mole percent of at least 1 monomer selected from the group consisting of amidine, vinylformamide, vinyl alcohol, vinyl acetate, vinyl pyrrolidinone and the esters, amides, nitriles and salts of acrylic acid and methacrylic acid. The addition of the polymer to the oil containing wastewater causes the emulsified oil to flocculate. The flocculated oil is then removed from the wastewater.

Polymers containing vinylamine/vinylformamide as demulsifiers in oily

The invention is a method for clarifying waste water containing turbidity-causing components which comprises: adding to said water an effective turbidity-reducing amount of a water-soluble silicon-containing copolymer coagulant prepared from diallyldimethylammonium halide and a vinyltrialkoxysilane; mixing said copolymer and said water with a mechanical stirring device for sufficient time to allow flocculation of the turbidity-causing components; and then separating the flocculated turbidity-causing components from the waste water to obtain clarified water. Useful polymers for the practice of this invention are copolymers of diallyldimethylammonium halide and vinyltrialkoxysilane.

Use of silicon containing polyelectrolytes in wastewater treatment

The invention comprises an apparatus for optimizing the dosage of a chemical waste water treatment agent using a fluorescent tracer by processing a sample of the waste water stream and allowing continuous on-stream monitoring of the performance of the chemical waste water treatment agent. The apparatus is comprised of a series of components that sample the waste stream, process the sample for analysis, analyze the sample, record the data in a historical database and, based upon the analysis as compared to historical data, adjust the chemical feed system to optimize the chemical waste water treatment agent according to the programmed optimization logic.

Apparatus for a continuous polymer dosage optimization and waste water

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 hydrophobically-associating monomer selected from the group consisting of quaternized dialkylaminoalkylacrylates, quaternized dialkylaminoalkylmethacrylates, and alkyl esters of (meth)acrylic acids, preferably ethylhexylacrylate, to the emulsion.

Hydrophobically-modified demulsifiers for oil-in-water systems

The invention is a process for removing color from a paper mill waste effluent containing color bodies which comprises: treating the waste effluent containing color bodies with an effective color-removing amount of a water-soluble silicon-containing copolymer coagulant prepared from diallyldimethylammonium halide and a vinyltrialkoxysilane; coagulating the color bodies present in the waste effluent; and then removing the coagulated color bodies from the waste effluent. The invention is also a method for clarifying waste water containing turbidity-causing components which comprises: adding to said water an effective turbidity-reducing amount of a water-soluble silicon-containing copolymer coagulant prepared from diallyldimethylammonium halide and a vinyltrialkoxysilane; mixing said copolymer and said water with a mechanical stirring device for sufficient time to allow flocculation of the turbidity-causing components; and then separating the flocculated turbidity-causing components from the waste water to obtain clarified water. Useful polymers for the practice of this invention are copolymers of diallyldimethylammonium halide and vinyltrialkoxysilane.

A method of removing waste oil from industrial oily waste water is disclosed. The method comprises the steps of adding to the oily waste water which includes oil, dispersed solids and emulsified water, an effective amount of a demulsifier which comprises a copolymer of a cationic monomer and a vinyl alkoxysilane; allowing the oil, emulsified water and dispersed solids to flocculate and separate into layers; and then removing the water layer from the treated waste water. The cationic monomer is selected from the group consisting diallyldimethylammonium halide, dimethylaminoethyl acrylate quaternary salt and dimethylaminoethyl methacrylate quaternary salt.

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Aurora, IL, United States of America

Ananthasubramanian Sivakumar