RECOVERY OF ORGANIC ACIDS
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Accused Products
Abstract
A method is disclosed for the recovery of an organic acid from a dilute salt solution in which the cation of the salt forms an insoluble carbonate salt. A tertiary amine and CO2 are introduced to the solution to form the insoluble carbonate salt and a complex between the acid and an amine. A water immiscible solvent, such as an alcohol, is added to extract the acid/amine complex from the dilute salt solution to a reaction phase. The reaction phase is continuously dried and a product between the acid and the solvent, such as an ester, is formed.
98 Citations
73 Claims
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1-34. -34. (canceled)
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35. A method for producing a product from an organic acid, the method comprising:
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a. fermenting biomass to produce a solution comprising at least one salt of a carboxylic acid, the cation of which forms an insoluble carbonate salt; b. introducing into the solution a tertiary amine and a weak acidulant to form an acid/amine complex and the insoluble carbonate salt; c. contacting the acid/amine complex with a water immiscible solvent capable of forming an ester with the acid, to form a reaction phase; and d. forming a product of the acid and the water immiscible solvent. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43)
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44. A method for producing a product from an acid/amine complex in a solution, the method comprising:
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a. contacting the acid/amine complex with a water immiscible solvent capable of forming an ester with the acid, to form a reaction phase; and b. forming a product of the acid and the water immiscible solvent. - View Dependent Claims (45, 46, 47, 48)
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49. A method for producing a product from a solution comprising an aqueous phase and a reaction phase, wherein the reaction phase comprises a water immiscible solvent and an acid/amine complex, the method comprising:
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a. separating the reaction phase; and b. forming a product of the acid and the water immiscible solvent. - View Dependent Claims (50, 51, 52, 53, 54, 55)
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56. A method for producing a product, the method comprising:
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a. obtaining a solution comprising a water immiscible solvent and a complex between an acid and a tertiary amine; b. forming a product of the acid and the solvent by continuously drying the solution; and c. recovering the product. - View Dependent Claims (57, 58, 59, 60, 61)
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62. A composition comprising an aqueous phase and a non-aqueous phase, wherein the non-aqueous phase comprises:
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a. a complex between an organic acid and a tertiary amine; and b. normal alcohol. - View Dependent Claims (63, 64, 65, 66, 67, 68)
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69. A composition comprising:
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a. an ester of an organic acid and a water immiscible solvent; and
,b. a tertiary amine. - View Dependent Claims (70, 71, 72, 73)
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Specification