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公开(公告)号：EP1569888A1
公开(公告)日：2005-09-07
申请号：EP03790246.7
申请日：2003-12-03
IPC分类号： C07C51/47 , C07C63/26 , C07C51/265
CPC分类号： C07C51/43 , C07C51/487 , C07C63/26
摘要： Disclosed is a process to produce a purified carboxylic acid slurry. The process comprises removing impurities from a crystallized product in a solid liquid displacement zone to form the purified carboxylic acid slurry. The process produces purified carboxylic acid slurry having good color and low impurity levels without the use of purification steps like hydrogenation or an impurity removal process.
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公开(公告)号：EP1973642A2
公开(公告)日：2008-10-01
申请号：EP06847796.7
申请日：2006-12-20
发明人： WONDERS, Alan, George , WOODRUFF, Thomas, Earl , SHEPPARD, Ronald, Buford , STRASSER, Wayne, Scott
IPC分类号： B01J10/00
CPC分类号： B01J10/002 , B01J4/002 , B01J8/007 , B01J8/1818 , B01J8/1827 , B01J8/22 , B01J8/26 , B01J8/30 , B01J19/26 , B01J2219/0004 , B01J2219/00245 , C07C51/265 , C07C63/26
摘要： Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
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公开(公告)号：EP1786752A1
公开(公告)日：2007-05-23
申请号：EP05792468.0
申请日：2005-08-29
发明人： WONDERS, Alan, George , LIGHTFOOT, Thomas, Young , SUMNER, Charles, Edwan, Jr. , ARNOLD, Ernest, William, III , FUGATE, Eric, Jackson , HITCHCOCK, Charles, Helton , TENNANT, Brent, Alan , WOODRUFF, Thomas, Earl , AYCOCK, John, David
IPC分类号： C07C51/235 , C07C51/265
CPC分类号： C07C51/265 , C07C51/42 , C07C63/26
摘要： Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
摘要翻译： 公开了用于更有效和经济地进行可氧化化合物的液相氧化的优化方法和设备。 这种液相氧化在气泡塔反应器中进行，其在相对低的温度下提供高效反应。 当氧化的化合物是对二甲苯并且来自氧化反应的产物是粗对苯二甲酸（CTA）时，这种CTA产物可以通过比如果CTA由常规高温形成时可以采用的更经济的技术来纯化和分离 氧化过程。
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公开(公告)号：EP1784378A1
公开(公告)日：2007-05-16
申请号：EP05792406.0
申请日：2005-08-29
发明人： WONDERS, Alan, George , LIGHTFOOT, Thomas, Young , WOODRUFF, Thomas, Earl , HITCHCOCK, Charles, Helton , DENTON, David, Lee , MCCURRY, Carl, Norman
IPC分类号： C07C63/26 , C07C51/235
CPC分类号： C07C63/26
摘要： Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubo a column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
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5.发明公开POLYCARBOXYLIC ACID PRODUCTION SYSTEM EMPLOYING ENHANCED MULTISTAGE OXIDATIVE DIGESTION 审中-公开系统具有高级多阶段氧化SKINS PRODUCING多元
公开(公告)号：EP1993988A1
公开(公告)日：2008-11-26
申请号：EP07751680.5
申请日：2007-02-27
发明人： WONDERS, Alan, George , SHEPPARD, Ronald, Buford , WOODRUFF, Thomas, Earl , DE BOER, Martin , FOGLE, Raymond, Elbert
IPC分类号： C07C51/265 , C07C51/487 , C07C63/26
CPC分类号： C07C51/265 , C07C51/487 , C07C63/26
摘要： Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system includes a multi-stage oxidative digestion system for processing an improved initial slurry from primary oxidation. The multi-stage digestion system is capable of adequately purifying the improved initial slurry without requiring significant liquor exchange between primary oxidation and oxidative digestion.
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6.发明公开
公开(公告)号：EP1971425A1
公开(公告)日：2008-09-24
申请号：EP06845905.6
申请日：2006-12-20
发明人： WONDERS, Alan, George , WOODRUFF, Thomas, Earl , SHEPPARD, Ronald Buford , STRASSER, Wayne Scott
IPC分类号： B01J10/00 , B01J8/22 , C07C51/265 , C07C63/26 , B01J19/26
CPC分类号： B01J8/22 , B01J4/002 , B01J8/007 , B01J8/1818 , B01J8/1827 , B01J8/26 , B01J8/30 , B01J10/002 , B01J19/26 , B01J2219/0004 , B01J2219/00245 , C07C51/265 , C07C63/26
摘要： Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
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7.发明公开A PURIFICATION PROCESS OF CRUDE TEREPHTALIC ACID IN A POST OXIDATION ZONE BY THE ADDITION OF STEAM 审中-公开方法对原料对苯二甲酸在后氧化带净化的蒸汽加
公开(公告)号：EP1620385A1
公开(公告)日：2006-02-01
申请号：EP04785490.6
申请日：2004-04-19
发明人： LIN, Robert , DE VREEDE, Marcel , SLUIJMERS, Johannes, Wilhelmus , DE BOER, Marti , WOODRUFF, Thomas, Earl
IPC分类号： C07C51/487 , C07C63/26
CPC分类号： C07C51/487 , C07C63/26
摘要： The present invention relates to a process for heating a secondary oxidizer with steam. More specifically, the present invention relates to a process for heating a secondary oxidizer with steam in a process for the production of a crystallized product. A process to produce a crystallized product comprises the following steps (a) oxidizing in an primary oxidation zone an aromatic feedstock to produce a crude carboxylic acid slurry; (b) oxidizing said crude carboxylic acid slurry in a post oxidation zone in the presence of steam to form a post oxidation product; (c) purifying said post oxidation product to a decolorized post oxidation product; and (d) crystallizing in a crystallization zone said post oxidation product to form a crystallized product.
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公开(公告)号：EP1569889A1
公开(公告)日：2005-09-07
申请号：EP03790247.5
申请日：2003-12-03
IPC分类号： C07C51/47 , C07C63/26 , C07C51/265
CPC分类号： C07C51/47 , C07C51/43 , C07C51/487 , C07C63/26
摘要： Disclosed is a process to produce a purified carboxylic acid slurry. The process comprises removing impurities from a crystallized product in a solid liquid displacement zone to form the purified carboxylic acid slurry. The purified carboxylic acid slurry is further cooled in a cooling zone and subsequently filtered and dried in a filtration and drying zone. The process produces purified carboxylic acid product having good color and low impurity levels without the use of purification steps like hydrogenation or filtrate purge.
摘要翻译： 公开了一种生产纯化羧酸浆料的方法。 该方法包括从固体液体置换区中的结晶产物中除去杂质以形成纯化的羧酸浆料。 纯化的羧酸淤浆在冷却区进一步冷却，随后过滤并在过滤和干燥区中干燥。 该方法生产具有良好颜色和低杂质水平的纯化羧酸产物，而不使用诸如氢化或滤液净化的纯化步骤。
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