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公开(公告)号：US07358392B2
公开(公告)日：2008-04-15
申请号：US11346393
申请日：2006-02-02
申请人： Ronald Buford Sheppard , Brent Alan Tennant , Thomas Earl Woodruff , Robert Lin , Ruairi Seosamh O'Meadhra
发明人： Ronald Buford Sheppard , Brent Alan Tennant , Thomas Earl Woodruff , Robert Lin , Ruairi Seosamh O'Meadhra
IPC分类号： C07C51/42 , C07C51/255
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.
摘要翻译： 公开了一种生产纯化的羧酸浆料的方法。 该方法包括在固体液体置换区中从结晶产物中除去杂质以形成纯化的羧酸浆液。 该方法产生具有良好颜色和低杂质水平的纯化的羧酸浆料，而不使用纯化步骤如氢化或杂质去除方法。
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公开(公告)号：US07161027B2
公开(公告)日：2007-01-09
申请号：US10645734
申请日：2003-08-21
IPC分类号： C07C69/52 , C07C51/255 , C07C51/42
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的羧酸浆料的方法。 该方法包括在固体液体置换区中从结晶产物中除去杂质以形成纯化的羧酸浆液。 将纯化的羧酸浆料在冷却区进一步冷却，随后过滤并在过滤和干燥区中干燥。 该方法产生具有良好颜色和低杂质水平的纯化羧酸产物，而不使用纯化步骤如氢化或滤液吹扫。
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公开(公告)号：US07074954B2
公开(公告)日：2006-07-11
申请号：US10645737
申请日：2003-08-21
IPC分类号： C07C69/52 , C07C51/255 , C07C51/42
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.
摘要翻译： 公开了一种生产纯化的羧酸浆料的方法。 该方法包括在固体液体置换区中从结晶产物中除去杂质以形成纯化的羧酸浆液。 该方法产生具有良好颜色和低杂质水平的纯化羧酸浆料，而不使用纯化步骤如氢化或杂质去除方法。
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4.发明申请公开(公告)号：US20070244340A1
公开(公告)日：2007-10-18
申请号：US11365698
申请日：2006-03-01
申请人： Alan George Wonders , Ronald Buford Sheppard , Thomas Earl Woodruff , Martin De Boer , Raymond Elbert Fogle , Philip Edward Gibson , Kenny Randolph Parker
发明人： Alan George Wonders , Ronald Buford Sheppard , Thomas Earl Woodruff , Martin De Boer , Raymond Elbert Fogle , Philip Edward Gibson , Kenny Randolph Parker
IPC分类号： C07C51/16 , C07C51/255
CPC分类号： C07C51/265 , C07C51/44 , C07C63/26
摘要： Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system employs an evaporative removal step downstream of oxidative digestion. The evaporative removal step removes a portion of the liquid phase and promotes precipitation of certain aromatic impurities. By promoting precipitation of certain aromatic impurities, the amount of the precipitated impurities in the recycled solvent is advantageously reduced.
摘要翻译： 公开了一种更有效和经济地生产对苯二甲酸的优化系统。 该系统采用氧化消解下游的蒸发去除步骤。 蒸发除去步骤除去一部分液相并促进某些芳族杂质的沉淀。 通过促进某些芳族杂质的析出，有利地减少了再循环溶剂中析出的杂质的量。
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5.发明授权Polycarboxylic acid production system employing enhanced multistage oxidative digestion 有权采用增强多级氧化消化的多羧酸生产系统公开(公告)号：US07816556B2
公开(公告)日：2010-10-19
申请号：US11365248
申请日：2006-03-01
申请人： Alan George Wonders , Ronald Buford Sheppard , Thomas Earl Woodruff , Martin De Boer , Raymond Elbert Fogle
发明人： Alan George Wonders , Ronald Buford Sheppard , Thomas Earl Woodruff , Martin De Boer , Raymond Elbert Fogle
IPC分类号： C07C51/16
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.
摘要翻译： 公开了一种更有效和经济地生产对苯二甲酸的优化系统。 该系统包括用于处理来自初级氧化的改进的初始浆料的多级氧化消化系统。 多级消化系统能够充分纯化改进的初始浆液，而不需要在初级氧化和氧化消化之间进行显着的液体交换。
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公开(公告)号：US07491369B2
公开(公告)日：2009-02-17
申请号：US11846851
申请日：2007-08-29
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.
摘要翻译： 公开了一种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装置。 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，可以通过更经济的技术将这种CTA产物纯化和分离，如果CTA通过常规的高温 氧化过程。
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7.发明授权公开(公告)号：US07358389B2
公开(公告)日：2008-04-15
申请号：US11365461
申请日：2006-03-01
IPC分类号： C07C51/16
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.
摘要翻译： 公开了一种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装置。 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，可以通过更经济的技术将这种CTA产物纯化和分离，如果CTA通过常规的高温 氧化过程。
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8.发明授权公开(公告)号：US07772424B2
公开(公告)日：2010-08-10
申请号：US11365698
申请日：2006-03-01
申请人： Alan George Wonders , Ronald Buford Sheppard , Thomas Earl Woodruff , Martin De Boer , Raymond Elbert Fogle , Philip Edward Gibson , Kenny Randolph Parker
发明人： Alan George Wonders , Ronald Buford Sheppard , Thomas Earl Woodruff , Martin De Boer , Raymond Elbert Fogle , Philip Edward Gibson , Kenny Randolph Parker
IPC分类号： C07C51/16
CPC分类号： C07C51/265 , C07C51/44 , C07C63/26
摘要： Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system employs an evaporative removal step downstream of oxidative digestion. The evaporative removal step removes a portion of the liquid phase and promotes precipitation of certain aromatic impurities. By promoting precipitation of certain aromatic impurities, the amount of the precipitated impurities in the recycled solvent is advantageously reduced.
摘要翻译： 公开了一种更有效和经济地生产对苯二甲酸的优化系统。 该系统采用氧化消解下游的蒸发去除步骤。 蒸发除去步骤除去一部分液相并促进某些芳族杂质的沉淀。 通过促进某些芳族杂质的析出，有利地减少了再循环溶剂中析出的杂质的量。
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公开(公告)号：US07355068B2
公开(公告)日：2008-04-08
申请号：US11365350
申请日：2006-03-01
IPC分类号： C07C51/16
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.
摘要翻译： 公开了一种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装置。 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，可以通过更经济的技术将这种CTA产物纯化和分离，如果CTA通过常规的高温 氧化过程。
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公开(公告)号：US07586000B2
公开(公告)日：2009-09-08
申请号：US11154221
申请日：2005-06-16
申请人： Alan George Wonders , Thomas Young Lightfoot , Charles Edwan Sumner, Jr. , Thomas Earl Woodruff , Ernest William Arnold, III , Eric Jackson Fugate , Charles Helton Hitchcock , Brent Alan Tennant , John David Aycock
发明人： Alan George Wonders , Thomas Young Lightfoot , Charles Edwan Sumner, Jr. , Thomas Earl Woodruff , Ernest William Arnold, III , Eric Jackson Fugate , Charles Helton Hitchcock , Brent Alan Tennant , John David Aycock
IPC分类号： C07C51/16
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.
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