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11. 发明授权

US5763671A Hydroformylation processes 失效
标题翻译：加氢甲酰化过程
公开(公告)号：US5763671A
公开(公告)日：1998-06-09
申请号：US757742
申请日：1996-11-26
申请人： David Robert Bryant , James Clair Nicholson
发明人： David Robert Bryant , James Clair Nicholson
IPC分类号： C07B61/00 , B01J19/18 , B01J27/18 , B01J31/02 , B01J31/18 , B01J31/22 , B01J31/40 , B01J38/74 , C07C45/49 , C07C45/50 , C07C47/02 , C07C51/00 , C07C51/255 , C07C51/265 , C07C51/42 , C07C51/43 , C07C63/00 , C07C63/15 , C07C63/26 , C07F9/02 , C07F9/141 , C07F9/145 , C07F9/50 , C07F9/6571 , C07F9/6574 , C07F15/00 , F04D25/08 , F04D29/28
CPC分类号： C07F9/65746 , B01J19/18 , B01J31/0237 , B01J31/0259 , B01J31/0267 , B01J31/1805 , B01J31/185 , B01J31/4023 , B01J31/4046 , B01J31/4053 , B01J31/4061 , B01J38/74 , C07C45/49 , C07C45/50 , C07C45/505 , C07F9/025 , C07F9/145 , B01J2219/00083 , B01J2219/00103 , B01J2231/32 , B01J2231/321 , B01J2231/52 , B01J2531/822 , B01J2531/96 , B01J31/20 , Y02P20/582 , Y02P20/584
摘要： This invention relates to a process for separating one or more phosphorus acidic compounds from a hydroformylation reaction product fluid containing said one or more phosphorus acidic compounds, a metal-organophosphite ligand complex catalyst and optionally free organophosphite ligand which process comprises (a) treating said hydroformylation reaction product fluid with water sufficient to remove at least some amount of said one or more phosphorus acidic compounds from said hydroformylation reaction product fluid and (b) treating the water which contains phosphorus acidic compounds removed from said hydroformylation reaction product fluid with an acid removal substance sufficient to remove at least some amount of said one or more phosphorus acidic compounds from said water.
摘要翻译：本发明涉及从含有一种或多种磷酸性化合物的加氢甲酰化反应产物流体，金属 - 有机亚磷酸酯配位体配位体催化剂和任选的游离有机亚磷酸酯配体分离一种或多种磷酸性化合物的方法，该方法包括（a）处理所述加氢甲酰化反应产物流体与足以从所述加氢甲酰化反应产物流体中除去至少一定量的所述一种或多种磷酸性化合物的水，和（b）用除去酸的物质处理从所述加氢甲酰化反应产物流体中除去的含磷酸性化合物的水足以从所述水中除去至少一些量的所述一种或多种磷酸性化合物。

12. 发明授权

US5696285A Production of terephthalic acid with excellent optical properties through the use of pure or nearly pure oxygen as the oxidant in p-xylene oxidation 失效
标题翻译：通过使用纯的或接近纯的氧气作为对二甲苯氧化的氧化剂，生产具有优异光学性能的对苯二甲酸
公开(公告)号：US5696285A
公开(公告)日：1997-12-09
申请号：US586022
申请日：1995-12-29
申请人： Anne Katherine Roby
发明人： Anne Katherine Roby
IPC分类号： B01J27/128 , B01J10/00 , B01J19/00 , B01J19/18 , B01J19/20 , C07B61/00 , C07C51/265 , C07C63/15 , C07C63/26 , C07C63/307 , C07C63/38 , C07C51/16
CPC分类号： C07C51/265 , B01J10/002 , B01J19/002 , B01J19/006 , B01J19/0066 , B01J19/1875 , B01J19/20 , B01J2219/00245 , B01J2219/0077 , B01J2219/00777 , Y02P20/52
摘要： The production of terephthalic acid by the oxidation of p-xylene is carried out in such a manner that the oxygen concentration in the liquid phase is maximized through the use of pure or nearly pure oxygen, while simultaneously the hydrocarbon feed concentration is minimized through rapid dilution with the reactor contents.
摘要翻译：通过对二甲苯的氧化生产对苯二甲酸的方法是通过使用纯的或接近纯的氧将液相中的氧浓度最大化，同时通过快速稀释使烃进料浓度最小化与反应器内容物。

13. 发明授权

US5684187A Process for producing highly pure terephthalic acid 失效
标题翻译：高纯度对苯二甲酸生产方法
公开(公告)号：US5684187A
公开(公告)日：1997-11-04
申请号：US639966
申请日：1996-04-29
申请人： Fumio Ohkoshi , Masato Inary , Fumiya Zaima
发明人： Fumio Ohkoshi , Masato Inary , Fumiya Zaima
IPC分类号： C07C51/487 , C07C51/43 , C07C63/26 , C07C51/42
CPC分类号： C07C51/43
摘要： There is disclosed a process for producing highly pure terephthalic acid by converting a slurry of terephthalic acid crystals in acetic acid solvent which crystals are obtained by liquid-phase oxidation of p-alkylbenzene, into a slurry thereof in water solvent by mother liquor replacement and then subjecting the latter slurry to a catalytic hydrogenation treatment which process comprises the steps of introducing the slurry of terephthalic acid crystals in acetic acid into a mother liquor replacement column at the top portion; forming an accumulation layer of the terephthalic acid crystals at the bottom portion by the sedimentation of the crystals; feeding replacing water sufficient for the formation of upward rising stream of water to the inside of the column at the bottom portion; and withdrawing the accumulation layer of the crystals from the bottom portion of the column. The accumulation layer is kept at a slightly fluidized stable state and is smoothly withdrawn from the bottom of the column by slowly rotating an arm-type agitation blade placed in the layer or by feeding the replacing water dividedly into two trains.
摘要翻译：公开了通过将通过液相氧化对烷基苯获得的结晶的乙酸溶剂中的对苯二甲酸晶体的浆料转化成其在水溶剂中的浆液，通过母液置换，生产高纯对苯二甲酸的方法，然后对后一种浆料进行催化加氢处理，该方法包括以下步骤：将对苯二甲酸晶体的淤浆在乙酸中引入到顶部的母液置换塔中; 通过晶体的沉淀在底部形成对苯二甲酸晶体的堆积层; 将足够的水替换为在塔底部向上升起的水流形成塔的内部; 并从柱的底部排出晶体的积聚层。蓄积层保持在稍微流化的稳定状态，并且通过缓慢旋转放置在该层中的臂式搅拌叶片或通过将替代水分成两部分进料来平缓地从塔的底部排出。

14. 发明授权

US5663428A Method for producing aromatic carboxylic acids 失效
标题翻译：芳香族羧酸的制造方法
公开(公告)号：US5663428A
公开(公告)日：1997-09-02
申请号：US578028
申请日：1995-12-26
申请人： Hideo Oikawa , Hiroshi Fukuhara
发明人： Hideo Oikawa , Hiroshi Fukuhara
IPC分类号： B01J31/04 , C07B61/00 , C07C51/265 , C07C63/26
CPC分类号： C07C63/26 , C07C51/265 , Y02P20/52
摘要： A method for producing aromatic carboxylic acids which comprises oxidizing a starting compound selected from the group consisting of alkyl substituted aromatic hydrocarbons and partially oxidized alkyl substituted aromatic hydrocarbons with a molecular oxygen containing gas in the presence of at least one additive selected from the group consisting of aliphatic hydrocarbons, alicyclic hydrocarbons, aliphatic alcohols, alicyclic alcohols, aldehydes, carboxylic acids and ketones and in the presence of a catalyst comprising a heavy metal compound and a bromine compound in a reaction solvent. The aliphatic alcohols, alicyclic alcohols, aldehydes, carboxylic acids and ketones have ten to thirty carbon atoms in the molecule.
摘要翻译：一种生产芳族羧酸的方法，包括在至少一种选自以下的添加剂的存在下，用含有分子氧的气体氧化选自烷基取代的芳族烃和部分氧化的烷基取代的芳族烃的起始化合物：脂肪族烃，脂环族烃，脂族醇，脂环族醇，醛，羧酸和酮，并且在反应溶剂中在包含重金属化合物和溴化合物的催化剂存在下进行。脂族醇，脂环族醇，醛，羧酸和酮在分子中具有10至30个碳原子。

15. 发明授权

US5583254A Process for the production of purified terephthalic acid 失效
标题翻译：制备纯对苯二甲酸的方法
公开(公告)号：US5583254A
公开(公告)日：1996-12-10
申请号：US343419
申请日：1995-01-13
申请人： John A. Turner , Eric Hindmarsh , David Parker , Ian P. Milne
发明人： John A. Turner , Eric Hindmarsh , David Parker , Ian P. Milne
IPC分类号： C07C51/43 , C07C63/26
CPC分类号： C07C51/43
摘要： Purified terephthalic acid is prepared by subjecting an aqueous solution of crude terephthalic acid to hydrogenation to reduce impurities, crystallizing this solution to produce a slurry of purified terephthalic acid in an aqueous liquor, and carrying out an integrated separation and washing process. The integrated separation is performed by exchanging the acidic reaction medium with water to produce a water containing cake of terephthalic acid.
摘要翻译： PCT No.PCT / GB93 / 01019 Sec。 371日期1995年1月13日 102（e）日期1995年1月13日PCT提交1993年5月19日PCT公布。公开号WO93 / 24440 日期1993年12月9日通过使粗对苯二甲酸的水溶液进行氢化以减少杂质，使该溶液结晶，从而在含水液体中产生纯化的对苯二甲酸的浆液，并进行一体的分离和洗涤过程。通过将酸性反应介质与水交换以产生对苯二甲酸的含水饼来进行整体分离。

16. 发明授权

US5338882A Process for the production of DMT-intermediate product of specific purity and pure terephthalic acid 失效
标题翻译：生产具有特异纯度的DMT-中间产物和纯对苯二甲酸的方法
公开(公告)号：US5338882A
公开(公告)日：1994-08-16
申请号：US145540
申请日：1993-11-04
申请人： Hermann-Josef Korte , Anton Miletic , Hans U. Neutzler , Anton Schoengen , Johann H. Schroeder , Ralf Wirges
发明人： Hermann-Josef Korte , Anton Miletic , Hans U. Neutzler , Anton Schoengen , Johann H. Schroeder , Ralf Wirges
IPC分类号： C07C67/52 , C07C63/26 , C07C67/39 , C07C69/82 , C07C51/09 , C07C51/43
CPC分类号： C07C67/39 , C07C67/54
摘要： The invention relates to a process for the production of a DMT intermediate product as well as its working up to fibregrade DMT and to medium pure and pure terephthalic acid. The DMT intermediate product is moreover produced by combined oxidation of a predominantly para-xylene (p-X) and para-toluic acid methyl ester (p-TE) containing mixture in liquid phase with an oxygen containing gas, esterification of the acids being produced with methanol, distillative or rectificative separation of the esterification products being produced into a p-TE rich fraction I, a fraction II containing more than 99% by weight DMT and its isomers and a high boiling residue fraction III as well as feeding back the p-TE fraction I into the oxidation, with the residue fraction III having a DMT content of 15 to 70% by weight and the DMT fraction II being purified by single solvent recrystallisation in methanol to form the DMT intermediate product to such an extent that the amounts of hydroxymethylbenzoic acid methyl ester (HM-BME) and terephthalic acid methyl ester (TAE) in the DMT intermediate product amount together to less than 200 ppm.
摘要翻译：本发明涉及一种生产DMT中间产物以及其加工成纤维分级DMT和中纯纯对苯二甲酸的方法。此外，DMT中间体产物通过主要在对二甲苯（pX）和对甲苯甲酸甲酯（p-TE）的液相混合物与含氧气体的组合氧化产生，所述酸与甲醇的酯化反应，产生的酯化产物的蒸馏或精馏分离成富含p-TE的馏分I，含有大于99重量％DMT及其异构体的馏分II和高沸点残渣馏分III，以及将p-TE 馏分I进入氧化，其中残余物馏分III的DMT含量为15至70重量％，DMT馏分II通过在甲醇中的单一溶剂重结晶纯化以形成DMT中间产物，使得羟甲基苯甲酸的量 DMT中间体产物中的酸甲酯（HM-BME）和对苯二甲酸甲酯（TAE）的含量一起低于200ppm。

17. 发明授权

US5328982A Depolymerization of substantially amorphous polyesters 失效
标题翻译：基本无定形聚酯的解聚
公开(公告)号：US5328982A
公开(公告)日：1994-07-12
申请号：US970220
申请日：1992-11-02
申请人： George W. Tindall , Randall L. Perry , Art T. Spaugh, Jr.
发明人： George W. Tindall , Randall L. Perry , Art T. Spaugh, Jr.
IPC分类号： C07C51/12 , C07B61/00 , C07C27/02 , C07C51/09 , C07C63/16 , C07C63/26 , C08F8/50 , C08J3/00
CPC分类号： C07C51/09 , C08J11/24 , C08J2367/02 , Y02W30/706
摘要： Ester bonds are hydrolyzed in the conversion of substantially amorphous polyesters to their monomeric components, by being contacted with a mixture of (a) an alcohol, such as methanol, or glycol, (b) a polar aprotic solvent such as N-methyl-pyrrolidone or dimethyl sulfoxide and (c) an alkoxide or hydroxide such as sodium hydroxide.
摘要翻译：通过与（a）醇如甲醇或二醇的混合物（b）极性非质子溶剂如N-甲基 - 吡咯烷酮（d）的混合物接触，将基本无定形的聚酯转化成其单体组分，酯键被水解或二甲基亚砜和（c）醇盐或氢氧化物如氢氧化钠。

18. 发明授权

US5175355A Improved process for recovery of purified terephthalic acid 失效
标题翻译：改进纯化对苯二甲酸的回收方法
公开(公告)号：US5175355A
公开(公告)日：1992-12-29
申请号：US810725
申请日：1991-12-18
申请人： Debra J. Streich , Diane J. Graziano , Sandra K. Schiller , Roger J. Grimm
发明人： Debra J. Streich , Diane J. Graziano , Sandra K. Schiller , Roger J. Grimm
IPC分类号： C07C63/26 , C07C51/42 , C07C51/43 , C07C51/47 , C07F9/46
CPC分类号： C07F9/46 , C07C51/43
摘要： A process is disclosed for preparation of purified terephthalic acid containing 200 ppmw or less of p-toluic acid. A filter cake of purified terephthalic acid is prepared by filtering, under a differential pressure of about or greater than 0.5 psi over the system pressure and a temperature within the range of from about 100.degree. C. to about 205.degree. C., an aqueous slurry of purified terephthalic acid containing a solution of p-toluic acid. The aqueous solution of p-toluic acid remaining in the filter cake of purified terephthalic acid is displaced from the filter cake by water under a pressure gradient over the system pressure at a temperature within the range of from about 100.degree. C. to about 205.degree. C. Pressure flash evaporation of water remaining in the filter cake occurs upon release of the system pressure to lower pressure with consequent lower temperature. The crystalline terephthalic acid product containing 200 ppmw or less p-toluic acid can be dried under atmospheric pressure. Purified terephthalic acid is useful for the manufacture of polyesters from which clothing and related goods are made.
摘要翻译：公开了一种制备含有200ppmw或更少的对甲苯甲酸的纯对苯二甲酸的方法。纯化的对苯二甲酸的滤饼通过在系统压力和约100℃至约205℃范围内的温度下在约或大于0.5psi的压差下过滤来制备，水性浆料的含对苯甲酸溶液的纯对苯二甲酸。保留在纯化对苯二甲酸的滤饼中的对甲苯甲酸的水溶液在压力梯度下在压力梯度下在约100℃至约205℃的温度范围内从水中从滤饼中移出。 C.将系统压力释放到较低压力并随之降低温度时，会发生残留在滤饼中的水的压力闪蒸。含有200ppmw以下的对甲苯甲酸的结晶对苯二甲酸产物可以在大气压下干燥。纯化的对苯二甲酸可用于制造服装和相关商品的聚酯。

19. 发明授权

US4939297A Extraction process for removal of impurities from terephthalic acid filtrate 失效
标题翻译：从对苯二甲酸滤液中除去杂质的萃取方法
公开(公告)号：US4939297A
公开(公告)日：1990-07-03
申请号：US361176
申请日：1989-06-05
申请人： Larry W. Browder , James C. Medlin , Art T. Spaugh, Jr.
发明人： Larry W. Browder , James C. Medlin , Art T. Spaugh, Jr.
IPC分类号： C07C63/26 , B01J31/40 , C07C51/42 , C07C51/48
CPC分类号： C07C51/42 , C07C51/48 , Y02P20/52
摘要： A method for removing impurities from an oxidative terephthalic acid synthesis mother liquor containing acetic acid, water, corrosion metals, a metal catalyst and organic impurities, comprising the steps of (a) removing from the mother liquor by evaporation from 50-95% of the acetic acid and water contained therein; (b) adding an amount of water to the concentrated mother liquor sufficient to dissolve the metal catalyst and form an aqueous mixture; (c) extracting the aqueous mixture by counter-current extraction with a substantially water-insoluble organic solvent, to produce a lighter phase containing the organic solvent, a minor amount of the water, acetic acid and the organic impurities and a heavier phase containing a major amount of the water, corrosion metals and the metal catalyst, and; (d) removing the corrosion metals from the heavier phase by heating and filtering, and; (e) removing the organic impurities from the lighter phase by distillation.
摘要翻译：一种从含有乙酸，水，腐蚀金属，金属催化剂和有机杂质的氧化对苯二甲酸合成母液中除去杂质的方法，包括以下步骤：（a）通过蒸发从母液中除去50-95％其中含有乙酸和水; （b）向浓缩母液中加入足够量的水以溶解金属催化剂并形成含水混合物; （c）通过用基本上不溶于水的有机溶剂逆流萃取来提取含水混合物，以产生含有有机溶剂，少量水，乙酸和有机杂质的较浅相，以及含有主要量的水，腐蚀金属和金属催化剂，以及; （d）通过加热和过滤从较重的相中除去腐蚀金属; （e）通过蒸馏从较轻的相中除去有机杂质。

20. 发明授权

US4808751A Method for reactivating a group VIII noble metal catalyst for use in the purification of crude terephthalic acid 失效
标题翻译：重新使用用于粗对苯二甲酸纯化的VIII族贵金属催化剂的方法
公开(公告)号：US4808751A
公开(公告)日：1989-02-28
申请号：US174850
申请日：1988-03-29
申请人： Hobe Schroeder , Ricky L. Wittman
发明人： Hobe Schroeder , Ricky L. Wittman
IPC分类号： B01J31/04 , B01J23/96 , B01J31/40 , B01J38/64 , C07B61/00 , C07C51/265 , C07C51/487 , C07C63/26 , C07C51/42 , B01J20/20
CPC分类号： C07C51/265 , B01J23/96 , B01J38/64 , C07C51/487 , Y02P20/584
摘要： A method is disclosed for reactivating a Group VIII noble metal catalyst employed in the purification of crude terephthalic acid formed by the liquid-phase oxidation of p-xylene in the presence of a catalyst comprising cobalt, manganese and bromine components.

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