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1. 发明申请

US20090131626A1 SIMPLIFIED ISOPHTHALIC ACID PROCESS FOR MODIFYING PET 失效
标题翻译：用于改性PET的简化的异辛酸方法
公开(公告)号：US20090131626A1
公开(公告)日：2009-05-21
申请号：US11940578
申请日：2007-11-15
申请人： Ronald Buford Sheppard , Brent Alan Tennant
发明人： Ronald Buford Sheppard , Brent Alan Tennant
IPC分类号： C08G63/40
CPC分类号： C08G63/183
摘要： Disclosed are modified PET polymer compositions and process for making modified PET polymer compositions by reacting purified terephthalic acid and non-hydrogenated isophthalic acid with ethylene glycol. Compositions with acceptable visual appearance, such as clarity and color, can be made at typical modification levels for many packaging application. Disclosed are also shaped articles and the process for making shaped articles of the modified PET polymer composition.
摘要翻译：公开了改性PET聚合物组合物和通过使纯对苯二甲酸和非氢化间苯二甲酸与乙二醇反应制备改性PET聚合物组合物的方法。具有可接受视觉外观的组合物，例如透明度和颜色，可以在许多包装应用的典型修饰水平上进行。还公开了成型制品和制备改性PET聚合物组合物的成型制品的方法。

2. 发明授权

US07358392B2 Process for the oxidative purification of terephthalic acid 有权
标题翻译：对苯二甲酸氧化提纯工艺
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。

3. 发明授权

US07161027B2 Process for the oxidative purification of terephthalic acid 有权
标题翻译：对苯二甲酸氧化提纯工艺
公开(公告)号：US07161027B2
公开(公告)日：2007-01-09
申请号：US10645734
申请日：2003-08-21
申请人： Ronald Buford Sheppard , Brent Alan Tennant , Thomas Earl Woodruff , Robert Lin
发明人： Ronald Buford Sheppard , Brent Alan Tennant , Thomas Earl Woodruff , Robert Lin
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。

4. 发明授权

US07485747B2 Two stage oxidation process for the production of aromatic dicarboxylic acids 有权
公开(公告)号：US07485747B2
公开(公告)日：2009-02-03
申请号：US10156312
申请日：2002-05-28
申请人： Ronald Buford Sheppard , Charles Edwan Sumner, Jr. , Brent Alan Tennant
发明人： Ronald Buford Sheppard , Charles Edwan Sumner, Jr. , Brent Alan Tennant
IPC分类号： C07C51/16 , C07C51/42
CPC分类号： C07C51/265 , C07C63/26
摘要： Disclosed is a process for producing a benzenedicarrboxylic acid such as terephthalic acid wherein a dialkyl benzene compound and acetic acid having catalyst components dissolved therein are fed to a first reaction zone wherein the dialkyl benzene compound is oxidized with molecular oxygen to provide a first oxidation zone product comprising a benzenedicarboxylic acid containing minor amounts of mono-carboxylic acid by-products such as carboxybenzaldehyde and toluic acid. The first oxidation zone product comprising a slurry of a benzenedicarboxylic acid containing minor amounts of mono-carboxylic acid by-products is fed to a second oxidation reaction zone that is operated under more severe conditions of temperature and pressure. The rate of the feed of a molecular oxygen containing gas to the second oxidation zone is about 3% or less of the the rate of the feed of the molecular oxygen containing gas to the first oxidation zone. The benzenedicarboxylic acid product obtained contains a total concentration of carboxybenzaldehyde and toluic acid of about 150 ppmw or less.

5. 发明授权

US07714094B2 Simplified isophthalic acid process for modifying PET 失效
标题翻译：用于改性PET的简化间苯二甲酸方法
公开(公告)号：US07714094B2
公开(公告)日：2010-05-11
申请号：US11940578
申请日：2007-11-15
申请人： Ronald Buford Sheppard , Brent Alan Tennant
发明人： Ronald Buford Sheppard , Brent Alan Tennant
IPC分类号： C08G63/02
CPC分类号： C08G63/183
摘要： Disclosed are modified PET polymer compositions and process for making modified PET polymer compositions by reacting purified terephthalic acid and non-hydrogenated isophthalic acid with ethylene glycol. Compositions with acceptable visual appearance, such as clarity and color, can be made at typical modification levels for many packaging application. Disclosed are also shaped articles and the process for making shaped articles of the modified PET polymer composition.
摘要翻译：公开了改性PET聚合物组合物和通过使纯对苯二甲酸和非氢化间苯二甲酸与乙二醇反应制备改性PET聚合物组合物的方法。具有可接受视觉外观的组合物，例如透明度和颜色，可以在许多包装应用的典型修饰水平上进行。还公开了成型制品和制备改性PET聚合物组合物的成型制品的方法。

6. 发明授权

US07074954B2 Process for the oxidative purification of terephthalic acid 有权
标题翻译：对苯二甲酸氧化提纯工艺
公开(公告)号：US07074954B2
公开(公告)日：2006-07-11
申请号：US10645737
申请日：2003-08-21
申请人： Ronald Buford Sheppard , Brent Alan Tennant , Thomas Earl Woodruff , Robert Lin
发明人： Ronald Buford Sheppard , Brent Alan Tennant , Thomas Earl Woodruff , Robert Lin
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。

7. 发明申请

US20100113824A1 Dicarboxylic Acid Production with Self-Fuel Oxidative Destruction 有权
标题翻译：自燃氧化破坏的二羧酸生产
公开(公告)号：US20100113824A1
公开(公告)日：2010-05-06
申请号：US12556099
申请日：2009-09-09
申请人： Raymond Elbert Fogle, III , Ronald Buford Sheppard , Timothy Alan Upshaw , Alan George Wonders
发明人： Raymond Elbert Fogle, III , Ronald Buford Sheppard , Timothy Alan Upshaw , Alan George Wonders
IPC分类号： C07C51/16
CPC分类号： C07C51/265 , C07C63/26 , C07C63/15
摘要： The invention provides improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost. More shaft power is produced using off-gas than is required to drive the main air compressor, even with preferred, relatively low oxidation temperatures. Simultaneously, an amount of wastewater greater than byproduct water from oxidation of xylene is kept in vapor form and treated along with off-gas pollutants in a self-sustaining (self-fueling) gas-phase thermal oxidative destruction unit. Optionally, off-gas is combined from multiple xylene oxidation reactors, comprising primary and/or secondary oxidation reactors and forming TPA and/or IPA. Optionally, air compressor condensate and caustic scrubber blowdown are used in a TPA process or as utility water, effectively eliminating normal flow of liquid wastewater effluent from a TPA plant. Optionally, PET off-gas containing the water of PET formation is treated in a shared thermal oxidative destruction unit, effectively eliminating normal flow of liquid wastewater effluent from a combined pX-to-TPA-to-PET plant.
摘要翻译：本发明提供了来自二甲苯氧化反应的废气的改进的能量含量和轴功率回收，同时使废水处理成本最小化。即使使用优选的相对低的氧化温度，也可以使用除了驱动主空气压缩机所需的废气以外的更多的轴功率。同时，大量来自二氧化碳氧化的副产物水的废水保持蒸气形式，并在自持（自燃）气相热氧化破坏装置中与废气污染物一起处理。任选地，废气从包括初级和/或二级氧化反应器并形成TPA和/或IPA的多个二甲苯氧化反应器组合。任选地，空气压缩机冷凝物和苛性碱洗涤器排污用于TPA方法或作为效用水，有效地消除了来自TPA设备的液体废水流出物的正常流动。任选地，在共同的热氧化破坏单元中处理含有PET形成水的PET废气，有效地消除了从组合的pX到TPA到PET植物的液体废水流出物的正常流动。

8. 发明申请

US20090317575A1 Enriched Terephthalic Acid Composition 有权
公开(公告)号：US20090317575A1
公开(公告)日：2009-12-24
申请号：US12492248
申请日：2009-06-26
申请人： Philip Edward Gibson , Kenny Randolph Parker , Ronald Buford Sheppard
发明人： Philip Edward Gibson , Kenny Randolph Parker , Ronald Buford Sheppard
IPC分类号： B32B27/36 , C09K3/00 , C08G63/06 , C08G63/00 , C08G63/183
CPC分类号： C07C51/16 , C07C51/42 , Y10T428/1352 , 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.

9. 发明申请

US20070276155A1 Process for energy recovery and water removal in the preparation of aromatic carboxylic acids 有权
标题翻译：在芳香族羧酸的制备中能量回收和除水的方法
公开(公告)号：US20070276155A1
公开(公告)日：2007-11-29
申请号：US11440187
申请日：2006-05-24
申请人： Timothy Alan Upshaw , Ronald Buford Sheppard
发明人： Timothy Alan Upshaw , Ronald Buford Sheppard
IPC分类号： C07C51/16 , C07C51/255
CPC分类号： C07C51/265 , Y02P20/51 , C07C63/26
摘要： This invention relates to a process for the manufacture of aromatic carboxylic acids by exothermic liquid phase oxidation of an aromatic feedstock. More particularly, this invention relates to the efficient energy recovery of the exotherm produced by the liquid phase oxidation of an aromatic feedstock. Also, this invention relates to the efficient energy recovery of the exotherm produced by the liquid phase oxidation of an aromatic feedstock while also utilizing the heat from the energy of oxidation to efficiently remove water resulting from the exothermic oxidation reaction.
摘要翻译：本发明涉及通过芳族原料的放热液相氧化制备芳族羧酸的方法。更具体地，本发明涉及通过芳族原料的液相氧化产生的放热的有效能量回收。此外，本发明涉及通过芳族原料的液相氧化产生的放热的有效能量回收，同时还利用来自氧化能量的热量来有效地除去由放热氧化反应产生的水。

10. 发明申请

US20070244340A1 Polycarboxylic acid production system employing enhanced evaporative concentration downstream of oxidative digestion 有权
标题翻译：采用提高氧化消化下游蒸发浓度的多元羧酸生产系统
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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