Demulsification compositions, systems and methods for demulsifying and separating aqueous emulsions
AssigneesKroff Chemical Company, Dow AgroSciences LLC
InventorsPaul Rey, David M. Sunderlik, Steven P. Ceplecha
Life of this patent
Estimating the term…
Abstract
The present invention provides compositions, systems and methods for demulsifying an emulsion including an aqueous phase and an organic phase by adding an effective amount of a composition comprising at least one quaternary organopolysiloxane or salt thereof to the emulsion, the composition optionally including at least one of quaternary epihalohydrin/polyamine copolymers or salts, and/or (poly)diallyldimethylammonium halides.
Claims27
A method for demulsifying an emulsion comprising an aqueous phase and an organic phase, comprising (a) adding an effective amount of a composition to an emulsion comprising an aqueous phase and an organic phase to at least partially separate the aqueous phase from the organic phase, the composition comprising at least one quaternary organopolysiloxane or salt thereof, wherein the quaternary organopolysiloxane or salt thereof is represented by Formulae (I) or (II):
- (R—O)—CH2CH(OH)CH2—R′ (I)
- (R—O)—C(O)CH2—R′ (II)
- wherein
- R is
- wherein A is selected from the group consisting of:
- a bond, —(CH2CH2O)x—, —(CH2CH(CH3)O)y—, and combinations thereof;
- a is an integer from 0 to 200;
- b is an integer, from 0 to 200;
- c is an integer from 1 to 200;
- each R1, if present, is selected from —(CH2)nCH3 and phenyl wherein n is an integer from 0 to 10;
- each R2, if present, is —(CH2)3—(OCH2CH2)x—(OCH2CH(CH3))y—(OCH2CH2)z—OH;
- R′ is selected from:
- wherein R3, R4, and R5 are each independently alkyl having from 1 to 20 carbon atoms, and X is an ion selected from the group consisting of Cl, Br, CH3SO4 and CH3CH2SO4;
- wherein R6 is alkyl having from 6 to 20 carbon atoms;
- R7 and R8 are independently selected from the group consisting of methyl and ethyl;
- and n′ is an integer from 1 to 5, and X is an ion selected from the group consisting of
- Cl, Br, CH3SO4 and CH3CH2SO4;
- and
- wherein R9 is alkyl having from 6 to 20 carbon atoms;
- and v is an integer from 1 to 5, and X is an ion selected from the group consisting of
- Cl, Br, CH3SO4 and CH3CH2SO4;
- and
- each x, y and z are independently selected integers each ranging from 0 to 20, wherein the emulsion comprises one or more components selected from the group consisting of bioproducts, microorganisms, enzymes, proteins, lipids, vitamins, carbohydrates, fats, amino acids and mixtures thereof, wherein the emulsion is the product of biological or bioproduct fermentation and wherein the organic phase comprises at least one organic solvent.
A method for demulsifying an emulsion comprising an aqueous phase and an organic phase, comprising (a) adding an effective amount of a composition to an emulsion comprising an aqueous phase and an organic phase to at least partially separate the aqueous phase from the organic phase, the composition comprising at least one quaternary organopolysiloxane or salt thereof, wherein the quaternary organopolysiloxane or salt thereof is represented by Formulae (III) or (IV):
- wherein in Formula (III):
- a is an integer from 0 to 200;
- b is an integer from 0 to 200;
- c is an integer from 1 to 200;
- and R is an alkyl group having 1 to 24 carbon atoms,
- wherein in Formula (IV):
- a is an integer from 0 to 200;
- and A is selected from the group consisting of:
- a bond, —(CH2CH2O)x—, —(CH2CH(CH3)O)y—, and combinations thereof;
- and R′ is selected from:
- wherein R3, R4, and R5 are each independently alkyl having from 1 to 20 carbon atoms, and X is an ion selected from the group consisting of Cl, Br, CH3SO4 and CH3CH2SO4;
- wherein R6 is alkyl having from 6 to 20 carbon atoms;
- R7 and R8 are independently selected from the group consisting of methyl and ethyl;
- and n′ is an integer from 1 to 5, and X is an ion selected from the group consisting of
- Cl, Br, CH3SO4 and CH3CH2SO4;
- and
- wherein R9 is alkyl having from 6 to 20 carbon atoms;
- and v is an integer from 1 to 5, and X is an ion selected from the group consisting of
- Cl, Br, CH3SO4 and CH3CH2SO4;
- and
- each x, y and z are independently selected integers each ranging from 0 to 20, wherein the emulsion comprises one or more components selected from the group consisting of bioproducts, microorganisms, enzymes, proteins, lipids, vitamins, carbohydrates, fats, amino acids and mixtures thereof wherein the emulsion is the product of biological or bioproduct fermentation and wherein the organic phase comprises at least one organic solvent.
A method for demulsifying an emulsion comprising an aqueous phase and an organic phase, comprising (a) adding an effective amount of a composition to an emulsion comprising an aqueous phase and an organic phase to at least partially separate the aqueous phase from the organic phase, the composition comprising at least one quaternary organopolysiloxane or salt thereof, wherein the quaternary organopolysiloxane or salt thereof is represented by Formula (IVa):
- wherein a is an integer from 0 to 200 and R is an alkyl group having 1 to 24 carbon atoms and wherein the emulsion comprises one or more components selected from the group consisting of bioproducts, microorganisms, enzymes, proteins, lipids, vitamins, carbohydrates, fats, amino acids and mixtures thereof, wherein the emulsion is the product of biological or bioproduct fermentation and wherein the organic phase comprises at least one organic solvent.
Dependencies are inferred from the claim text.