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61. 发明授权

US06921837B2 Process for the purification and preparation of acrylic acid or methacrylic acid 有权
标题翻译：纯化和制备丙烯酸或甲基丙烯酸的方法
公开(公告)号：US06921837B2
公开(公告)日：2005-07-26
申请号：US10656203
申请日：2003-09-08
申请人： Bernd Eck , Jörg Heilek , Dieter Baumann , Volker Schliephake
发明人： Bernd Eck , Jörg Heilek , Dieter Baumann , Volker Schliephake
IPC分类号： C07C51/64 , C07C51/25 , C07C51/43 , C07C51/47 , C07C57/05 , C07C57/07 , C07C51/42
CPC分类号： C07C51/43 , C07C51/252 , C07C51/47 , C07C57/04
摘要： Acrylic acid or methacrylic acid is purified by crystallization to obtain crystals and a mother liquor, by a process in which the crystals are washed with a wash liquid containing the acid and having a temperature from 15 to 40° C. Furthermore, a process for the preparation of acrylic acid or methacrylic acid comprises the abovementioned purification process.
摘要翻译：丙烯酸或甲基丙烯酸通过结晶纯化，得到晶体和母液，其中晶体用含有酸的洗涤液洗涤并具有15至40℃的温度。此外，丙烯酸或甲基丙烯酸的制备包括上述纯化方法。

62. 发明申请

US20050159616A1 Process for production of a dried carboxylic acid cake suitable for use in polyester production 有权
标题翻译：生产适用于聚酯生产的干燥羧酸饼的方法
公开(公告)号：US20050159616A1
公开(公告)日：2005-07-21
申请号：US10758676
申请日：2004-01-15
申请人： Kenny Parker , Robert Lin , Philip Gibson
发明人： Kenny Parker , Robert Lin , Philip Gibson
IPC分类号： C07C51/47 , C07C51/48 , C07C51/42
CPC分类号： C07C51/47 , C07C51/48 , C07C63/26
摘要： The present invention relates to a process by which a dried carboxylic acid cake is obtained from a slurry or cake carboxylic acid product through the use of at least one counter current wash. More specifically, the present invention relates to a process by which a dried terephthalic acid cake suitable as a starting material for polyester or co-polyester production is obtained from a slurry or cake terephthalic acid product through the use of at least one counter current wash.
摘要翻译：本发明涉及通过使用至少一种逆流洗涤从浆料或蛋糕羧酸产物获得干燥的羧酸饼的方法。更具体地，本发明涉及通过使用至少一种逆流洗涤从浆液或饼对苯二甲酸产物获得适合作为聚酯或共聚酯生产原料的干燥的对苯二甲酸饼。

63. 发明授权

US6017969A Ion-exchange resins, their preparation and uses 失效
标题翻译：离子交换树脂，其制备和用途
公开(公告)号：US6017969A
公开(公告)日：2000-01-25
申请号：US81828
申请日：1998-05-20
申请人： Michael David Jones , Matthew David Lunn , Andrew David Poole , Adele Shenton
发明人： Michael David Jones , Matthew David Lunn , Andrew David Poole , Adele Shenton
IPC分类号： B01J43/00 , B01J31/08 , B01J31/28 , B01J47/00 , C07B31/00 , C07B61/00 , C07C51/47 , C07C53/08 , C07C51/42 , B01J39/18
CPC分类号： C07C51/47 , B01J47/006
摘要： An ion-exchange resin stabilized against shrinkage, the resin being loaded with at least one amphiphilic ion in the absence of sodium cations.Also a process for removing iodide compounds from a liquid carboxylic acid and/or carboxylic acid anhydride obtained from the Group VIII noble metal catalysed, alkyl iodide co-catalysed carbonylation of alcohols and/or their reactive derivatives by contacting the liquid carboxylic acid and/or carboxylic acid anhydride with the ion-exchange resin stabilized against shrinkage as aforesaid, the ion-exchange resin being loaded with one or more of the metals silver, palladium or mercury.
摘要翻译：稳定的抗离子交换树脂收缩，树脂在不存在钠阳离子的情况下装入至少一种两亲离子。还有一种从液体羧酸和/或羧酸酐中除去碘化合物的方法，该液体羧酸和/或羧酸酐由第VIII族贵金属催化的烷基碘烷基碘共催化羰基化醇和/或其反应性衍生物，通过使液体羧酸和/或羧酸酐与离子交换树脂如上所述稳定抵抗收缩，离子交换树脂被负载有一种或多种金属银，钯或汞。

64. 发明授权

US5712131A Recovery of organic acid from an impure process stream by addition of strong acid or salt thereof 失效
标题翻译：通过加入强酸或其盐从不纯的工艺流中回收有机酸
公开(公告)号：US5712131A
公开(公告)日：1998-01-27
申请号：US460140
申请日：1995-06-02
申请人： Steven W. Felman , Chetna Patel , Bhalchandra H. Patwardhan , David J. Solow
发明人： Steven W. Felman , Chetna Patel , Bhalchandra H. Patwardhan , David J. Solow
IPC分类号： C07C51/43 , C07C51/47 , C07C59/265 , C12P7/48 , C12P7/40
CPC分类号： C07C51/43 , C07C51/47 , Y02P20/582
摘要： This invention provides an improved process of recovering organic acid from an impure process stream, such as a fermentation broth, by the addition of a strong acid or salt thereof to the impure process stream. The process provides for essentially one step purification without the waste disposal problems or large capital investment required by either the conventional lime/sulfuric or solvent extraction recovery processes. The recovery can be further improved by treating the mother liquor remaining after separation of the citric acid crystals to obtain an additional yield. The preferred strong acid is sulfuric acid and the preferred mother liquor treatment is passage through an ion exclusion resin column.
摘要翻译：本发明提供了通过在不纯的工艺流中加入强酸或其盐，从不纯的工艺流如发酵液中回收有机酸的改进方法。该方法提供基本上一步纯化，而不需要常规的石灰/硫酸或溶剂萃取回收方法所需的废物处理问题或大量资本投资。通过处理分离柠檬酸晶体后剩余的母液可以进一步提高回收率以获得额外的收率。优选的强酸是硫酸，优选的母液处理通过离子排斥树脂柱。

65. 发明授权

US5676838A Process for isolating hydroxymonocarboxylic and tricarboxylic acids 失效
标题翻译：用于分离羟基单羧酸和三羧酸的方法
公开(公告)号：US5676838A
公开(公告)日：1997-10-14
申请号：US385956
申请日：1995-02-09
申请人： Elfriede Sextl , Akos Kiss , Heike Kinz , Wiltrud Schaefer-Treffenfeldt , Sems Yonsel , Stefan Stockhammer
发明人： Elfriede Sextl , Akos Kiss , Heike Kinz , Wiltrud Schaefer-Treffenfeldt , Sems Yonsel , Stefan Stockhammer
IPC分类号： B01D15/04 , C07C51/47 , C07C59/08 , C07C59/265
CPC分类号： C07C51/47
摘要： The invention relates to the removal of hydroxymonocarboxylic acids and tricarboxylic acids from aqueous solutions by adsorption on zeolites with a modulus of up to 400.
摘要翻译：本发明涉及通过在高达400的模量的沸石上吸附从水溶液中除去羟基单羧酸和三羧酸。

66. 发明授权

US5641406A Lactic acid extraction and purification process 失效
标题翻译：乳酸提取和纯化过程
公开(公告)号：US5641406A
公开(公告)日：1997-06-24
申请号：US505166
申请日：1995-10-10
申请人： Schahroch Sarhaddar , Anton Scheibl , Emmerich Berghofer , Adalbert Cramer
发明人： Schahroch Sarhaddar , Anton Scheibl , Emmerich Berghofer , Adalbert Cramer
IPC分类号： C07C51/47 , C12P7/48 , B01D15/08
CPC分类号： C12P7/48 , C07C51/47
摘要： The subject of the invention is a process for extracting pure lactic acid from fermentation liquors by ion exchange chromatography on a strongly acidic cation exchanger, preferably in H.sup.+ form. In a first step, the NH.sub.4 lactate coming from the fermentation is converted into the free acid by genuine ion exchange. This conversion is preferably effected on a weakly acidic cation exchanger in H.sup.+ form.
摘要翻译： PCT No.PCT / AT94 / 00016 Sec。 371 1995年10月10日第 102（e）日期1995年10月10日PCT 1994年2月17日提交PCT公布。公开号WO94 / 19307 日本1994年9月1日本发明的主题是通过离子交换层析在强酸性阳离子交换剂上优选以H +形式从发酵液中提取纯乳酸的方法。在第一步中，通过真正的离子交换将来自发酵的NH 4乳酸转化成游离酸。该转化优选在H +形式的弱酸性阳离子交换剂上进行。

67. 发明授权

US5599977A Oxidation process 失效
标题翻译：氧化工艺
公开(公告)号：US5599977A
公开(公告)日：1997-02-04
申请号：US460621
申请日：1995-06-02
申请人： Donald E. Kiely , Andy Carter , David P. Shrout
发明人： Donald E. Kiely , Andy Carter , David P. Shrout
IPC分类号： C07C51/27 , C07C51/31 , C07C51/47 , C07C59/10 , C07C59/265 , C07C59/285 , C07C51/16 , C07C51/42
CPC分类号： C07C51/316
摘要： Rapid temperature rises which characterize carbohydrate-nitric acid oxidation reactions used to form carbohydrate-derived acids may be moderated and temperature control readily maintained by blowing a gas such as air, oxygen, nitrogen or the like into the reaction mixture as needed to control the temperature of the reaction. The more moderate reaction conditions afford higher yield of the desired product with a concomitant reduction of byproducts which may be difficult to remove and usually are unwanted as well. Upon completion the oxidation mixture is made basic (e.g. with an alkali metal base hydroxide or carbonate, ammonia or an amine) to a pH at which the the carboxyl group or groups of the product carbohydrate-derived acid are entirely in the salt form. The aqueous solution is then passed through an ion retardation resin column to recover the carbohydrate-derived salt, using water as the eluent. If desired, the carbohydrate-derived acid salt may then be recovered easily by removal of solvent water or by precipitation by addition of an water-miscible organic compound such as methanol, ethanol, acetone, isopropanol, etc.).
摘要翻译：表征用于形成碳水化合物衍生的酸的碳水化合物 - 硝酸氧化反应的快速升温可以被调节，并且根据需要将气体如空气，氧气，氮气等吹到反应混合物中来容易地维持温度控制，以控制温度的反应。更温和的反应条件提供了所需产物的较高产率，伴随着副产物的还原，这可能难以除去并且通常也是不想要的。完成后，将氧化混合物制成碱性（例如用碱金属碱性氢氧化物或碳酸盐，氨或胺）至产物碳水化合物衍生的酸的羧基或基团完全为盐形式的pH。然后将水溶液通过离子延迟树脂柱，以水作为洗脱液回收碳水化合物衍生的盐。如果需要，可以通过除去溶剂水或通过加入水混溶性有机化合物如甲醇，乙醇，丙酮，异丙醇等容易地回收碳水化合物衍生的酸盐。

68. 发明授权

US5576458A Process for preparing organic carboxylic acid 失效
标题翻译：制备有机羧酸的方法
公开(公告)号：US5576458A
公开(公告)日：1996-11-19
申请号：US407612
申请日：1995-03-21
申请人： Takeshi Minami , Kazuhiko Hamato , Kenji Shimokawa , Yoshimi Shiroto
发明人： Takeshi Minami , Kazuhiko Hamato , Kenji Shimokawa , Yoshimi Shiroto
IPC分类号： B01J31/18 , B01J31/16 , C07B61/00 , C07C51/12 , C07C51/47 , C07C53/08 , C07C45/50
CPC分类号： C07C51/47 , C07C51/12 , B01J31/165
摘要： In the production step, alcohol is reacted with carbon monoxide in a reaction solvent in the presence of a rhodium-containing solid catalyst obtained by immobilizing rhodium in an insoluble carrier (I) containing a pyridine ring in its resin structure and an alkyl iodide containing an alkyl group of 1 to 5 carbon atoms, to produce a reaction product having a water content of 0.5 to 10% by weight; and in the subsequent removing step, an organic carboxylic acid is separated and recovered from the reaction product, and the recovered organic carboxylic acid is contacted with an insoluble carrier (II) containing a pyridine ring in its resin structure, to remove an iodide contained in the organic carboxylic acid.
摘要翻译：在制造工序中，使醇与反应溶剂中的一氧化碳反应，在含有固体催化剂的铑固体催化剂的存在下，将铑固定在其树脂结构中含有吡啶环的不溶性载体（I）中， 1〜5个碳原子的烷基，得到含水率为0.5〜10重量％的反应产物; 在随后的除去步骤中，将有机羧酸从反应产物中分离回收，回收的有机羧酸与其树脂结构中含有吡啶环的不溶性载体（II）接触，除去有机羧酸。

69. 发明授权

US5382681A Process for the production of an alkali metal citrate 失效
标题翻译：制备碱金属柠檬酸盐的方法
公开(公告)号：US5382681A
公开(公告)日：1995-01-17
申请号：US122300
申请日：1993-09-17
申请人： Frank G. H. Derez , Patrick L. J. Vandervondelen
发明人： Frank G. H. Derez , Patrick L. J. Vandervondelen
IPC分类号： C07C51/487 , C07C51/47 , C07C59/265 , C07C51/42
CPC分类号： C07C51/47
摘要： A process for the preparation of an alkali metal citrate which comprises:(a) adjusting the pH of an aqueous solution containing citric acid to a value greater than 5.4;(b) contacting the aqueous solution with a polymeric adsorbent;(c) eluting the resulting charged polymeric adsorbent with an eluant comprising an aqueous solution of a soluble alkali metal hydroxide or alkali metal salt in which the alkali metal corresponds to the alkali metal of the alkali metal citrate to be produced; and(d) recovering an aqueous solution of the alkali metal citrate, is disclosed.
摘要翻译：一种制备碱金属柠檬酸盐的方法，其包括：（a）将含有柠檬酸的水溶液的pH调节至大于5.4的值; （b）使所述水溶液与聚合物吸附剂接触; （c）用包含可溶性碱金属氢氧化物或碱金属盐的水溶液的洗脱剂洗脱所得带电聚合物吸附剂，其中碱金属对应于待生产的碱金属柠檬酸盐的碱金属; 和（d）回收碱金属柠檬酸盐的水溶液。

70. 发明授权

US5344976A Process for removing iodide compounds from carboxylic acids and carboxylic acid anhydrides 失效
标题翻译：从羧酸和羧酸酐中除去碘化物的方法
公开(公告)号：US5344976A
公开(公告)日：1994-09-06
申请号：US72365
申请日：1993-06-03
申请人： Michael D. Jones , Derrick J. Watson , Bruce L. Williams
发明人： Michael D. Jones , Derrick J. Watson , Bruce L. Williams
IPC分类号： B01J39/04 , C07B63/00 , C07C51/12 , C07C51/47 , C07C51/573 , C07C53/08 , C07C53/12 , C07C53/122 , C07C53/124 , C07C53/126
CPC分类号： C07C51/573 , C07C51/47
摘要： In a process for removing iodide compounds from a liquid composition comprising carboxylic acids having 2 to 6 carbon atoms or anhydrides thereof, by passing the liquid composition through a silver, mercury, palladium and/or rhodium-exchanged strong acid cation exchange resin, prior to contacting with the metal-exchanged resin the composition is contacted with a cation exchanger in the acid form to remove at least a portion of the metal ion contaminants in the liquid composition which have been found to displace the silver, mercury, palladium and/or rhodium from the metal-exchanged resin.
摘要翻译：在通过使液体组合物通过银，汞，钯和/或铑交换的强酸阳离子交换树脂从包含具有2至6个碳原子的羧酸或其酸酐的液体组合物中除去碘化合物的方法中，与金属交换的树脂接触，使组合物与酸形式的阳离子交换剂接触以除去液态组合物中已发现取代银，汞，钯和/或铑的至少一部分金属离子污染物从金属交换树脂。

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