| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 549326000 | Preparing from compound containing -COO- group | 21 |
| 20090036692 | Process for Production of Substituted Cyclopentanone - A substituted cyclopentanone represented by the following formula (2): | 02-05-2009 |
| 20090318716 | METHOD FOR PURIFYING HYDROXYCARBOXYLIC ACID, METHOD FOR PRODUCING CYCLIC ESTER, AND METHOD FOR PRODUCING POLYHYDROXYCARBOXYLIC ACID - A process for purification of a hydroxycarboxylic acid by distillation, comprising: distilling a hydroxycarboxylic acid solution containing a high-boiling point hydroxy compound comprising at least one species selected from the group consisting of alcohols and phenols having a higher boiling point than the hydroxycarboxylic acid. As a result, a hydroxycarboxylic acid suitable as a starting material for production of a polyhydroxycarboxylic acid can be obtained. The purified hydroxycarboxylic acid is further polycondensed to provide a hydroxycarboxylic acid oligomer, which is de-polymerized to provide a cyclic ester comprising a dimer of the hydroxycarboxylic acid, and the cyclic ester is converted into a polyhydroxycarboxylic acid by ring-opening polymerization thereof. | 12-24-2009 |
| 20100324310 | Catalytic Conversion of Cellulose to Liquid Hydrocarbon Fuels by Progressive Removal of Oxygen to Facilitate Separation Processes and Achieve High Selectivities - Described is a method to make liquid chemicals, such as functional intermediates, solvents, and liquid fuels from biomass-derived cellulose. The method is cascading; the product stream from an upstream reaction can be used as the feedstock in the next downstream reaction. The method includes the steps of deconstructing cellulose to yield a product mixture comprising levulinic acid and formic acid, converting the levulinic acid to γ-valerolactone, and converting the γ-valerolactone to pentanoic acid. Alternatively, the γ-valerolactone can be converted to a mixture of n-butenes. The pentanoic acid so formed can be further reacted to yield a host of valuable products. For example, the pentanoic acid can be decarboxylated yield 1-butene or ketonized to yield 5-nonanone. The 5-nonanone can be hydrodeoxygenated to yield nonane, or 5-nonanone can be reduced to yield 5-nonanol. The 5-nonanol can be dehydrated to yield nonene, which can be dimerized to yield a mixture of C | 12-23-2010 |
| 20110046399 | PROCESS FOR PREPARING A HYDROXYACID OR HYDROXYESTER - A process for preparing a hydroxyacid or hydroxyester from a reactant selected from
| 02-24-2011 |
| 20110245514 | PROCESSES FOR THE PRODUCTION OF HYDROGENATED PRODUCTS - A process for making a hydrogenated product includes providing a clarified DAS-containing fermentation broth; distilling the broth under super atmospheric pressure at a temperature of >100° C. to about 300° C. to form an overhead that includes water and ammonia, and a liquid bottoms that includes SA, and at least about 20 wt % water; cooling the bottoms to a temperature sufficient to cause the bottoms to separate into a liquid portion in contact with a solid portion that is substantially pure SA; separating the solid portion from the liquid portion; recovering the solid portion; hydrogenating the solid portion in the presence of at least one hydrogenation catalyst to produce the hydrogenated product including at least one of THF, GBL or BDO; and recovering the hydrogenated product. | 10-06-2011 |
| 20110245515 | PROCESSES FOR THE PRODUCTION OF HYDROGENATED PRODUCTS - A process for making a hydrogenated product includes providing a clarified DAS-containing fermentation broth, distilling the broth to form an overhead that includes water and ammonia, and a liquid bottoms that includes MAS, at least some DAS, and at least about 20 wt % water, cooling and/or evaporating the bottoms, and optionally adding an antisolvent to the bottoms, to attain a temperature and composition sufficient to cause the bottoms to separate into a DAS-containing liquid portion and a MAS-containing solid portion that is substantially free of DAS, separating the solid portion from the liquid portion, recovering the solid portion, hydrogenating the second solid portion in the presence of at least one hydrogenation catalyst to produce the hydrogenated product comprising at least one of THF, GBL or BDO, and recovering the hydrogenated product. | 10-06-2011 |
| 20110301364 | PROCESSES FOR THE PRODUCTION OF HYDROGENATED PRODUCTS - A process for making a hydrogenated product includes providing a clarified DAS-containing fermentation broth, distilling the broth to form an overhead that includes water and ammonia, and a liquid bottoms that includes MAS, at least some DAS, and at least about 20 wt % water, cooling and/or evaporating the bottoms, and optionally adding an antisolvent to the bottoms, to attain a temperature and composition sufficient to cause the bottoms to separate into a DAS-containing liquid portion and a MAS-containing solid portion that is substantially free of DAS, separating the solid portion from the liquid portion, recovering the solid portion, hydrogenating the second solid portion in the presence of at least one hydrogenation catalyst to produce the hydrogenated product comprising at least one of THF, GBL or BDO, and recovering the hydrogenated product. | 12-08-2011 |
| 20110306777 | PROCESSES FOR THE PRODUCTION OF HYDROGENATED PRODUCTS - A process for making a hydrogenated product includes providing a clarified DAS-containing fermentation broth; distilling the broth under super atmospheric pressure at a temperature of >100° C. to about 300° C. to form an overhead that includes water and ammonia, and a liquid bottoms that includes SA, and at least about 20 wt % water; cooling the bottoms to a temperature sufficient to cause the bottoms to separate into a liquid portion in contact with a solid portion that is substantially pure SA; separating the solid portion from the liquid portion; recovering the solid portion; hydrogenating the solid portion in the presence of at least one hydrogenation catalyst to produce the hydrogenated product including at least one of THF, GBL or BDO; and recovering the hydrogenated product. | 12-15-2011 |
| 20120095241 | PROCESSES FOR THE PRODUCTION OF HYDROGENATED PRODUCTS - A process for making a hydrogenated product includes providing a clarified DAS-containing fermentation broth, distilling the broth to form an overhead that includes water and ammonia, and a liquid bottoms that includes MAS, at least some DAS, and at least about 20 wt % water, cooling and/or evaporating the bottoms, and optionally adding an antisolvent to the bottoms, to attain a temperature and composition sufficient to cause the bottoms to separate into a DAS-containing liquid portion and a MAS-containing solid portion that is substantially free of DAS, separating the solid portion from the liquid portion, recovering the solid portion, hydrogenating the second solid portion in the presence of at least one hydrogenation catalyst to produce the hydrogenated product comprising at least one of THF, GBL or BDO, and recovering the hydrogenated product. | 04-19-2012 |
| 20120149922 | CATALYTIC CONVERSION OF CELLULOSE TO LIQUID HYDROCARBON FUELS BY PROGRESSIVE REMOVAL OF OXYGEN TO FACILITATE SEPARATION PROCESSES AND ACHIEVE HIGH SELECTIVITIES - Described is a method to make liquid chemicals. The method includes deconstructing cellulose to yield a product mixture comprising levulinic acid and formic acid, converting the levulinic acid to γ-valerolactone, and converting the γ-valerolactone to pentanoic acid. Alternatively, the γ-valerolactone can be converted to a mixture of n-butenes. The pentanoic acid can be decarboxylated yield 1-butene or ketonized to yield 5-nonanone. The 5-nonanone can be hydrodeoxygenated to yield nonane, or 5-nonanone can be reduced to yield 5-nonanol. The 5-nonanol can be dehydrated to yield nonene, which can be dimerized to yield a mixture of C | 06-14-2012 |
| 20120215014 | PROCESSES FOR THE PRODUCTION OF HYDROGENATED PRODUCTS - A process for making a hydrogenated product includes providing a clarified DAS-containing fermentation broth, distilling the broth to form an overhead that includes water and ammonia, and a liquid bottoms that includes MAS, at least some DAS, and at least about 20 wt % water, cooling and/or evaporating the bottoms, and optionally adding an antisolvent to the bottoms, to attain a temperature and composition sufficient to cause the bottoms to separate into a DAS-containing liquid portion and a MAS-containing solid portion that is substantially free of DAS, separating the solid portion from the liquid portion, recovering the solid portion, hydrogenating the second solid portion in the presence of at least one hydrogenation catalyst to produce the hydrogenated product comprising at least one of THF, GBL or BDO, and recovering the hydrogenated product. | 08-23-2012 |
| 20120302764 | METHOD TO PRODUCE AND RECOVER LEVULINIC ACID AND/OR GAMMA-VALEROLACTONE FROM AQUEOUS SOLUTIONS USING ALKYLPHENOLS - A method to produce levulinic acid (LA) and γ-valerolactone (GVL) from biomass-derived cellulose by selective extraction of LA by alkylphenol (AP) and hydrogenation of LA, in which mineral acid used in the method is recycled and the final concentration of GVL is increased by successive extraction/hydrogenation steps to allow for effective separation by distillation. | 11-29-2012 |
| 20120302765 | METHOD TO PRODUCE, RECOVER AND CONVERT FURAN DERIVATIVES FROM AQUEOUS SOLUTIONS USING ALKYLPHENOL EXTRACTION - Described is a catalytic process for converting biomass to furan derivatives (e.g., furfural, furfuryl alcohol, etc.) using a biphasic reactor containing a reactive aqueous phase and an organic extracting phase containing an alkylphenol. The process provides a cost-effective route for producing furfural, furfuryl alcohol, levulinic acid hydroxymethylfurfural, γ-valerolactone, and the like. The products formed are useful as value-added intermediates to produce polymers, as precursors to diesel fuel, and as fuel additives. | 11-29-2012 |
| 20120302766 | SOLUTE-ENHANCED PRODUCTION OF GAMMA-VALEROLACTONE (GVL) FROM AQUEOUS SOLUTIONS OF LEVULINIC ACID - A method to produce levulinic acid (LA) and gamma-valerolactone (GVL) from biomass-derived cellulose or lignocellulose by selective extraction of LA using GVL and optionally converting the LA so isolated into GVL, with no purifications steps required to yield the GVL. | 11-29-2012 |
| 20120302767 | PRODUCTION OF LEVULINIC ACID, FURFURAL, AND GAMMA VALEROLACTONE FROM C5 and C6 CARBOHYDRATES IN MONO- AND BIPHASIC SYSTEMS USING GAMMA- VALEROLACTONE AS A SOLVENT - A method to make levulinic acid (LA), furfural, or gamma-valerolactone (GVL). React cellulose (and/or other C | 11-29-2012 |
| 20130296579 | PROCESS FOR PREPARATION OF gamma-VALEROLACTONE VIA CATALYTIC HYDROGENATION OF LEVULINIC ACID - An industrially viable process for selective preparation of γ-valerolactone using recyclable non noble metal catalyst is provided. This process provides 80-100% conversion to γ-valerolactone, with selectivity in the range of 80-100%. | 11-07-2013 |
| 20140316146 | PROCESS FOR PRODUCING 1,4- BUTANEDIOL BY HYDROGENATING DIALKYL MALEATE IN MIXED LIQUID/VAPOR PHASE - A process for the production of 1,4-butanediol and tetrahydrofuran by catalytic hydrogenation of dialkyl maleates includes the following steps:
| 10-23-2014 |
| 20150073156 | Production Method of a-Methylene Lactone - The present invention relates to a production method of α-methylene lactone which comprises the following steps: (A) a step of producing an enolate intermediate by making lactone react with alkyl formate under the presence of an alkoxide base; and (B) making the enolate intermediate react with paraformaldehyde. The production method of the present invention is capable of reducing the process time, improving yield, and minimizing the contamination of a reactor. | 03-12-2015 |
| 20150368574 | BIOFUELS PRODUCTION FROM BIO-DERIVED CARBOXYLIC-ACID ESTERS - A process for producing for producing biofuels compounds directly from carboxylic acid esters recovered from a fermentation system is described. The process involves taking a fermentation broth that has been reduced to a dry powder containing free organic acids; reacting the carboxylic acid in the powder with an alcohol solvent under a CO | 12-24-2015 |
| 20160090370 | SOLUTE-ENHANCED PRODUCTION OF GAMMA-VALEROLACTONE (GVL) FROM AQUEOUS SOLUTIONS OF LEVULINIC ACID - A method to produce levulinic acid (LA) and gamma-valerolactone (GVL) from biomass-derived cellulose or lignocellulose by selective extraction of LA using GVL and optionally converting the LA so isolated into GVL, with no purifications steps required to yield the GVL. | 03-31-2016 |
| 20180022721 | CONTINUOUS HYDROGENATION OF LEVULINIC ACID | 01-25-2018 |
