Class / Patent application number | Description | Number of patent applications / Date published |
562513000 | Preparation from source of undetermined composition (e.g., industrial waste, etc.) | 13 |
20100145096 | Process for Recovery and Purification of Lactic Acid - The present invention relates to a process for recovery and purification of lactic acid from a fermentation broth containing lactic acid. The process comprises subjecting the fermentation broth to ultrafiltration and/or microfiltration to form a first permeate, concentrating the first permeate to form concentrated broth, subjecting the concentrated broth to supported liquid membrane for extraction of lactic acid into a separate stream, subjecting the extracted lactic acid solution to activated carbon for removal of colour, subjecting the extracted lactic acid solution to cation exchange resin for deminerization, subjecting the extracted lactic acid solution to anion exchange resin for removal of anionic impurities and concentrating the extracted lactic acid solution to desired concentration. The supported liquid membrane of the present invention contains an organic layer that comprises a earner, a co-extractant, a diluent and a stabilizer. | 06-10-2010 |
20100179347 | PREPARATION OF FATTY ACIDS IN SOLID FORM - A method for making a fatty acid mineral salt is disclosed where liquid oils containing fatty acids are hydrolyzed using a base solution. A buffering agent is added to the hydrolyzed solution to maintain pH between 8.0 and 11.0 followed by a water soluble metal salt solution which causes a metathesis reaction with the hydrolyzed solution, forming a precipitates of fatty acid metal salts which are glycerin-free. The precipitates are filtered, washed and subsequently dried. The produced fatty acid metal salt is easier for the human body to digest than omega-3 fatty acid in oil form and also is less prone to oxidation and emitting of unpleasant odor. | 07-15-2010 |
20100317891 | METHOD FOR THE PURIFICATION OF ORGANIC ACIDS - The invention relates to a method for the purification of worts containing optionally neutralised organic acids, which comprises the following steps: (a) removal of a portion at least of the divalent cations and optionally of a portion at least of the monovalent cations by passing the same on a cationic resin; and (b) nano-filtration of the resulting solution. | 12-16-2010 |
20110028759 | Process for the Purification of Organic Acids - A process for recovery and purification of an organic acid from a fermentation broth containing a salt form of the organic acid, comprises the steps of subjecting the fermentation broth to one of ultrafiltration and microfiltration to form a first permeate, concentrating the first permeate to form a concentrated broth, subjecting the concentrated broth to a supported liquid membrane for extraction of lactic acid into a separate stream comprising an extracted solution, subjecting the extracted solution to activated carbon for colour removal, a cation exchange resin for demineralization, and an anion exchange resin for removal of anionic impurities to form a post polished organic acid, filtering the post polished organic acid to remove impurities above a predetermined threshold and concentrating the post polished organic acid to a desired concentration. | 02-03-2011 |
20140155650 | Production of Acrylic Acid and Ethanol from Carbonaceous Materials - A process for producing acrylic acid from carbonaceous materials such as biomass. The carbonaceous material, such as biomass, is gasified to produce synthesis gas. The synthesis gas then is subjected to a plurality of reactions to produce acrylic acid. | 06-05-2014 |
20140171681 | METHOD FOR PREPARING UNSATURATED CARBOXYLIC ACID - A method for preparing an unsaturated carboxylic acid comprising (a) preparing an aqueous solution comprising an ammonium salt of hydroxycarboxylic acid and a salt of inorganic acid; (b) contacting the aqueous solution with a cation exchange resin to prepare a conversion aqueous solution comprising a hydroxycarboxylic acid and an inorganic acid; and (c) dehydrating the hydroxycarboxylic acid using the inorganic acid as a catalyst is provided. | 06-19-2014 |
20150321988 | SYNTHESIS OF SHORT CHAIN CARBOXYLIC ACIDS FROM CARBOHYDRATE BIOMASS - The current disclosure provides methods for producing C2-C5 carboxylic acids from a carbohydrate source. In some embodiments, the method may be: (a) contacting the carbohydrate source with an alkali to form a plurality of intermediate compounds; and (b) reducing the intermediate compounds to form at least one C2-C5 carboxylic acid. In some embodiments, the carbohydrate source may be organic waste. | 11-12-2015 |
20150344397 | METHOD FOR PURIFYING CARBOXYLIC ACIDS FROM FERMENTATION BROTHS - Method and devices for separating and purifying carboxylic acids from fermentation broths comprising carboxylic acid ammonium salts are disclosed herein. The method includes (a) removing biomass and any solids present from the fermentation broth; (b) preparing a solution comprising the desired carboxylic acid and an additional solution comprising ammonium salts, by carrying out simulated moving bed chromatography (SMB); (c) ultra-purifying the solution comprising the desired carboxylic acid from method step (b); (d) concentrating the purified carboxylic acid solution from method to step (c); (e) crystallizing the concentrated carboxylic acid solution from method step (d); and (f) concentrating the additional solution comprising ammonium salts from method step (b). A combination of reverse osmosis and evaporation is carried out in method steps (d) and (f), and the vapor from the evaporation of method step (f) is passed into the evaporation of method step (d). | 12-03-2015 |
20150361024 | PURIFICATION OF POLYCARBOXYLIC ACIDS - A process for purifying a polycarboxylic acid from a mixture is provided. Optionally, the mixture is an aqueous solution and optionally the process comprises an acidification step and/or the use of one or more organic solvents. Also provided in part are compositions of polycarboxylic acids. | 12-17-2015 |
20160023981 | Production Of Acrylic Acid and Ethanol From Carbonaceous Materials - A process for producing acrylic acid from carbonaceous materials such as biomass. The carbonaceous material, such as biomass, is gasified to produce synthesis gas. The synthesis gas then is subjected to a plurality of reactions to produce acrylic acid. | 01-28-2016 |
20160090343 | Methods for Suppressing Isomerization of Olefin Metathesis Products - A method for suppressing isomerization of an olefin metathesis product produced in a metathesis reaction includes adding an isomerization suppression agent to a mixture that includes the olefin metathesis product and residual metathesis catalyst from the metathesis reaction under conditions that are sufficient to passivate at least a portion of the residual metathesis catalyst. The isomerization suppression agent includes (i) a salt and/or an ester of a phosphorous oxo acid, and/or (ii) a derivative of the phosphorous oxo acid in which at least one P—H bond has been replaced by a P—C bond, and/or (iii) a salt and/or an ester of the derivative. Methods of refining natural oils are described. | 03-31-2016 |
20160152542 | PROCESS FOR THE SEPARATION OF LEVULINIC ACID FROM A BIOMASS HYDROLYSATE | 06-02-2016 |
562514000 | Nitrogen containing acid produced | 1 |
20120010429 | SEPARATION PROCESS - The present invention relates to a method of separating betaine and at least one other component from a sugar beet based fermentation solution. The invention is based on the use of a combination of SAC resins and WAC resins in a specific order and in specified proportions in a chromatographic SMB separation system. The chromatographic separation system is preferably a single integrated SMB system comprising both SAC and WAC resin beds. | 01-12-2012 |