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公开(公告)号：EP1261574B1
公开(公告)日：2006-11-02
申请号：EP01918380.5
申请日：2001-03-06
发明人： COLLINS, Nick, Allen , SHELTON, Mark, Robert , TINDALL, George, William , PERRI, Steven, Thomas , O'MEADHRA, Ruairi, Seosamh , SINK, Chester, Wayne , ARUMUGAM, Bhaskar, K. , HUBBS, John, Clark
IPC分类号： C07C51/43 , C07C59/347 , C07C59/105 , C07C59/265 , C07C59/255 , C07C59/19 , C07C59/08 , C07C57/145 , C07C55/10 , C07C53/02 , C07C53/08 , C07C53/122 , C07C53/124 , C07C59/245 , C07C57/13 , C07D307/62 , C07C51/48
CPC分类号： C07C51/43 , Y02P20/582 , Y10S435/803 , Y10S435/876 , Y10S435/896 , C07C59/347
摘要： A process for recovering a desired organic acid from a solution includes the steps of: providing an aqueous solution including at least one desired organic acid or its acid anion; adjusting the proton concentration in the aqueous solution to a desired level, with the desired proton concentration being selected, at least in part, by the amount of available protons needed to associate with the acid anions of the desired organic acid(s) to be recovered and/or acid anions that are weaker than the desired organic acids; and recovering at least a portion of the at least one desired organic acid from the aqueous phase. The desired proton concentration can be based on the amount of available protons being greater than, less than or substantially equal, to the amount of protons needed to associate with the anion of the desired organic acid(s) and acid anions that are weaker than the desired organic acid(s). Specific examples of suitable organic acids include, but are not limited to, ascorbic, succinic, tartaric, glyconic, gulonic, citric, lactic, malic, maleic, acetic, formic, gluconic pyruvic, propionic, butyric, itaconic acids and mixtures thereof. One embodiment of the present invention relates to the recovery of 2-keto-L-gulonic acid (KLG) from aqueous solutions such as fermentation baths.
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公开(公告)号：EP1395543A1
公开(公告)日：2004-03-10
申请号：EP02739637.3
申请日：2002-06-04
CPC分类号： C07C63/26 , C07C51/265 , C07C51/43 , C07C51/487
摘要： Disclosed is a process for the production of terephthalic acid by a plurality of process steps including the catalyst oxidation of a dialkylbenzene compound, a second oxidation, a hydrogenation of the product of the second oxidation, and crystallization of the hydrogenation terephthalic acid using a plurality of series-connected crystallizers.
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公开(公告)号：EP1984414A1
公开(公告)日：2008-10-29
申请号：EP07750086.6
申请日：2007-02-05
发明人： SUMNER, Charles, Edwan, Jr. , MUNJAL, Ramesh, Chand , O'MEADHRA, Ruairi, Seosamh , SINK, Chester, Wayne , FAUVER, Jerry, Steven , SCHISLA, Robert, Melvin, Jr. , BAGRODIA, Shriram , HARDIN, Tera, Jill , HOCHSTETLER, Spencer, Erich
IPC分类号： C08G8/10
CPC分类号： C08G8/10 , Y10T428/2982 , Y10T428/2998
摘要： Resol beads are disclosed that are prepared in high yield by reaction of a phenol with an aldehyde, with a base as catalyst, a colloidal stabilizer, and optionally a surfactant. The resol beads have a variety of uses, and may be thermally treated and carbonized to obtain activated carbon beads.
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公开(公告)号：EP1885681A2
公开(公告)日：2008-02-13
申请号：EP06760233.4
申请日：2006-05-18
CPC分类号： C07C309/00 , C07C51/42 , C07C63/24 , C07C63/26
摘要： A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.
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公开(公告)号：EP1261574A2
公开(公告)日：2002-12-04
申请号：EP01918380.5
申请日：2001-03-06
发明人： COLLINS, Nick, Allen , SHELTON, Mark, Robert , TINDALL, George, William , PERRI, Steven, Thomas , O'MEADHRA, Ruairi, Seosamh , SINK, Chester, Wayne , ARUMUGAM, Bhaskar, K. , HUBBS, John, Clark
IPC分类号： C07C51/43 , C07C59/347 , C07C59/105 , C07C59/265 , C07C59/255 , C07C59/19 , C07C59/08 , C07C57/145 , C07C55/10 , C07C53/02 , C07C53/08 , C07C53/122 , C07C53/124 , C07C59/245 , C07C57/13 , C07D307/62 , C07C51/48
CPC分类号： C07C51/43 , Y02P20/582 , Y10S435/803 , Y10S435/876 , Y10S435/896 , C07C59/347
摘要： A process for recovering a desired organic acid from a solution includes the steps of: providing an aqueous solution including at least one desired organic acid or its acid anion; adjusting the proton concentration in the aqueous solution to a desired level, with the desired proton concentration being selected, at least in part, by the amount of available protons needed to associate with the acid anions of the desired organic acid(s) to be recovered and/or acid anions that are weaker than the desired organic acids; and recovering at least a portion of the at least one desired organic acid from the aqueous phase. The desired proton concentration can be based on the amount of available protons being greater than, less than or substantially equal, to the amount of protons needed to associate with the anion of the desired organic acid(s) and acid anions that are weaker than the desired organic acid(s). Specific examples of suitable organic acids include, but are not limited to, ascorbic, succinic, tartaric, glyconic, gulonic, citric, lactic, malic, maleic, acetic, formic, gluconic pyruvic, propionic, butyric, itaconic acids and mixtures thereof. One embodiment of the present invention relates to the recovery of 2-keto-L-gulonic acid (KLG) from aqueous solutions such as fermentation baths.
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公开(公告)号：EP1395543B1
公开(公告)日：2010-04-14
申请号：EP02739637.3
申请日：2002-06-04
CPC分类号： C07C63/26 , C07C51/265 , C07C51/43 , C07C51/487
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7.发明公开POLYCARBOXYLIC ACID PRODUCTION SYSTEM WITH ENHANCED RESIDENCE TIME DISTRIBUTION FOR OXIDATIVE DIGESTION 审中-公开制度与多具有改进的RTD的氧化能力
公开(公告)号：EP1989163A1
公开(公告)日：2008-11-12
申请号：EP07750865.3
申请日：2007-02-16
IPC分类号： C07C51/265 , C07C63/26 , B01J8/22
CPC分类号： C07C51/265 , C07C63/26
摘要： Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system includes an oxidative digestion reactor/zone configured to provide optimized residence time distribution for the solid and liquid phases of the reaction medium processed therein.
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8.发明授权
公开(公告)号：EP1392635B1
公开(公告)日：2005-12-07
申请号：EP02739565.6
申请日：2002-06-04
摘要： Disclosed is a method for the recovery of crystalline therephthalic acid containing less than 150 ppmw p-toluic acid by subjecting a solution of therephthalic acid containing minor amounts of p-toluic acid to crystallization in a crystallization zone comprising a plurality of series-connected crystallizers wherein the solution is subjected to rate-controlled evaporative cooling by sequential reduction in pressure and temperature to cause crystallization of therephthalic acid, wherein the pressure of the solution at the end of the crystallization zone is ambient pressure or less. Solvent which is evaporated from the crystallizers is collected and condensed and the condensed solvent is returned to the crystallization zone at a point subsequent to the crystallizer from which it was obtained.
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公开(公告)号：EP1984414B1
公开(公告)日：2015-04-22
申请号：EP07750086.6
申请日：2007-02-05
发明人： SUMNER, Charles, Edwan, Jr. , MUNJAL, Ramesh, Chand , O'MEADHRA, Ruairi, Seosamh , SINK, Chester, Wayne , FAUVER, Jerry, Steven , SCHISLA, Robert, Melvin, Jr. , BAGRODIA, Shriram , HARDIN, Tera, Jill , HOCHSTETLER, Spencer, Erich
IPC分类号： C08G8/10
CPC分类号： C08G8/10 , Y10T428/2982 , Y10T428/2998
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公开(公告)号：EP1984295A2
公开(公告)日：2008-10-29
申请号：EP07750084.1
申请日：2007-02-05
发明人： SUMNER, Charles, Edwan, Jr. , MUNJAL, Ramesh, Chand , O'MEADHRA, Ruairi, Seosamh , SINK, Chester, Wayne , FAUVER, Jerry, Steven , TUSTIN, Gerald, Charles , COMPTON, Daniel, Burts , SCHISLA, Robert, Melvin, Jr. , BAGRODIA, Shriram , HARDIN, Tera, Jill
CPC分类号： C08G8/10 , C01B32/30 , C01B32/336 , C01B32/382
摘要： Activated carbon beads are disclosed made from resol beads prepared in high yield by reaction of a phenol with an aldehyde, with a base as catalyst, in the presence of a colloidal stabilizer, and optionally a surfactant. The resol beads are then optionally thermally treated, and afterward carbonized and activated to obtain the activated carbon beads.
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