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1. 发明授权

US4138472A Process for obtaining coarsely crystalline pure ammonium sulfate 失效
标题翻译：获得粗结晶纯硫酸铵的方法
公开(公告)号：US4138472A
公开(公告)日：1979-02-06
申请号：US844647
申请日：1977-10-25
申请人： Gerald Neubauer , Gerard Van Wauwe , Josef Beullens , Uwe Brand , Hugo Fuchs , Klaus Kartte
发明人： Gerald Neubauer , Gerard Van Wauwe , Josef Beullens , Uwe Brand , Hugo Fuchs , Klaus Kartte
IPC分类号： C01C1/242 , C01C1/248
CPC分类号： C01C1/242 , C01C1/248
摘要： A process for obtaining coarsely crystalline pure ammonium sulfate from reaction mixtures which have been obtained by Beckmann rearrangement of cyclohexanone-oxime with sulfuric acid or oleum, by neutralizing the mixtures with ammonia at an elevated temperature, with the addition of recycled ammonium sulfate mother liquor, the concentration being so chosen that during the neutralization no solid ammonium sulfate precipitates, separating the crude caprolactam from the ammonium sulfate solution, crystallizing ammonium sulfate by evaporating the ammonium sulfate solution under reduced pressure, separating off the crystallized ammonium sulfate and recycling the mother liquor to the neutralization stage. The neutralization is carried out at from 80.degree. to 115.degree. C. under autogenous pressure and the ammonium sulfate solution obtained after separating off the crude lactam is evaporated under a pressure of from 200 to 600 mm Hg while cooling to from 72.degree. to 101.degree. C.
摘要翻译：从反应混合物中获得粗结晶纯硫酸铵的方法，其通过用硫酸或发烟硫酸重整环己酮 - 肟，通过在升高的温度下用氨中和混合物，再加入回收的硫酸铵母液，浓度如此选择，使得在中和期间没有固体硫酸铵沉淀，将粗己内酰胺与硫酸铵溶液分离，通过在减压下蒸发硫酸铵溶液使硫酸铵结晶，分离结晶的硫酸铵并将母液再循环至中和阶段。中和在自生压力下在80〜115℃进行，分离出内酰胺后得到的硫酸铵溶液在200〜600mmHg的压力下蒸发，同时冷却至72〜101℃。 C。

2. 发明授权

US4804473A Removal of water-immiscible solvents from offgases containing same 失效
标题翻译：从含有它们的废气中除去与水不混溶的溶剂
公开(公告)号：US4804473A
公开(公告)日：1989-02-14
申请号：US136418
申请日：1987-12-22
申请人： Uwe Brand , Emile DeDecker , Ernst Deuker , Hugo Fuchs , Klaus Kartte , Gerald Neubauer , Jozef Oostvogels
发明人： Uwe Brand , Emile DeDecker , Ernst Deuker , Hugo Fuchs , Klaus Kartte , Gerald Neubauer , Jozef Oostvogels
IPC分类号： B01D53/44 , B01D53/14 , B01D53/34 , B01D53/72 , B01D53/77 , C07D201/16 , B01D11/04
CPC分类号： B01D53/1487 , B01D53/1493 , C07D201/16
摘要： Water-immiscible solvents are removed from offgases containing same by washing with water-containing caprolactam.
摘要翻译：通过用含水己内酰胺洗涤除去与水相混溶的溶剂。

3. 发明授权

US4154729A Continuous extraction of caprolactam from crude lactam 失效
标题翻译：从内酰胺连续提取己内酰胺
公开(公告)号：US4154729A
公开(公告)日：1979-05-15
申请号：US848210
申请日：1977-11-03
申请人： Hugo Fuchs , Uwe Brand , Klaus Kartte
发明人： Hugo Fuchs , Uwe Brand , Klaus Kartte
IPC分类号： C07D201/16
CPC分类号： C07D201/16
摘要： In a process for the continuous extraction of caprolactam from crude lactam by means of benzene in counter-current, in which crude lactam is fed into the upper part of an extraction zone and benzene into the lower part, a solution of caprolactam in benzene is taken off at the top and an aqueous solution containing impurities is taken off at the bottom, the improvement that water is additionally fed into the upper part of the extraction zone and a part of the aqueous solution, containing impurities, obtained at the bottom of the extraction zone is recycled into the extraction zone. Caprolactam is used for the manufacture of nylon.
摘要翻译：在将粗制内酰胺进料到提取区上部并进入下部的苯中，通过逆流中的苯从粗制内酰胺连续提取己内酰胺的方法，将己内酰胺在苯中的溶液在底部取出含有杂质的水溶液，改善了将水另外进料到提取区的上部，并将部分含有杂质的水溶液在提取物的底部获得区域被回收到提取区域。己内酰胺用于制造尼龙。

4. 发明授权

US3992372A Processing polycaprolactam extraction liquors 失效
标题翻译：加工聚己内酰胺提取液
公开(公告)号：US3992372A
公开(公告)日：1976-11-16
申请号：US560313
申请日：1975-03-20
申请人： Rudolph Hans Gath , Hugo Fuchs , Ruediger Schmitz , Klaus Kartte , Uwe Brand
发明人： Rudolph Hans Gath , Hugo Fuchs , Ruediger Schmitz , Klaus Kartte , Uwe Brand
IPC分类号： C08G69/46 , C07D201/16
CPC分类号： C08G69/46
摘要： A process for processing polycaprolactam extraction liquors by evaporation of water and distillation of the residue in which the evaporation of water is carried out in a plurality of stages and the evaporation energy for the removal of the bulk of the water is taken from the heat liberated in the rearrangement of cyclohexanone oxime to caprolactam in oleum or sulfuric acid by using the extraction water for cooling the rearrangement mixture and utilizing the heat absorbed by the extraction water for the concentration of this extraction water by evaporation of water.
摘要翻译：通过蒸发水处理聚己内酰胺提取液的方法，并且蒸馏残留物，其中水的蒸发在多个阶段中进行，并且用于除去大部分水的蒸发能源取自在通过使用提取水冷却重排混合物并利用由萃取水吸收的热量，通过蒸发水将该萃取水浓缩，将环己酮肟重排为己内酰胺在发烟硫酸或硫酸中。

5. 发明授权

US4301073A Purification of caprolactam 失效
标题翻译：己内酰胺的纯化
公开(公告)号：US4301073A
公开(公告)日：1981-11-17
申请号：US160308
申请日：1980-06-17
申请人： Hugo Fuchs , Otto-Alfred Grosskinsky , Elmar Frommer , Klaus Kartte
发明人： Hugo Fuchs , Otto-Alfred Grosskinsky , Elmar Frommer , Klaus Kartte
IPC分类号： C07D201/02 , C07D201/16 , C07D223/10
CPC分类号： C07D201/16
摘要： A process for purifying caprolactam, which has been obtained by a Beckmann rearrangement, by extracting crude caprolactam with solvents, distilling the extract in the presence of alkali, and isolating pure caprolactam, wherein, in a first stage, caprolactam is distilled from the alkaline distillation residue at a bottom temperature of 130.degree.-160.degree. C., and is recycled to the distillation stage, the residue thus obtained is distilled, in a second stage, at a bottom temperature of 140.degree.-180.degree. C., and the distillate is treated with strongly acidic agents in a third stage and is then recycled to the extraction stage.
摘要翻译：一种通过贝克曼重排获得的己内酰胺的纯化方法，用溶剂萃取粗己内酰胺，在碱存在下蒸馏提取物，并分离纯己内酰胺，其中在第一阶段中，从碱性蒸馏中蒸馏己内酰胺残余物在130℃-160℃的底部温度下再循环至蒸馏阶段，所得残余物在第二阶段在140-180℃的底部温度下蒸馏，馏出物在第三阶段用强酸性剂处理，然后再循环至萃取阶段。

6. 发明授权

US3941838A Partial dehydration of cyclohexanone oxime 失效
标题翻译：环己酮肟部分脱水
公开(公告)号：US3941838A
公开(公告)日：1976-03-02
申请号：US438167
申请日：1974-01-30
申请人： Hugo Fuchs , Rudolph Gath , Kurt Kahr , Klaus Kartte
发明人： Hugo Fuchs , Rudolph Gath , Kurt Kahr , Klaus Kartte
IPC分类号： B01D20060101 , C07C20060101 , C07C131/04
CPC分类号： C07C249/14
摘要： A process for the partial dehydration of cyclohexanone oxime by treatment with aqueous solutions of inorganic salts, wherein the crude cyclohexanone oxime is extracted, above its melting point, with a concentrated ammonium salt solution and/or hydroxylammonium salt solution in countercurrent in an extraction column and the salt solution is then separated from the partly dehydrated cyclohexanone oxime, reconcentrated by evaporation and recycled to the oxime dehydration process. The cyclohexanone oxime melt which has been dehydrated to water contents of about 4 to 6% by weight is treated with a heated inert gas above its melting point and the off-gas is washed to remove entrained cyclohexanone oxime.
摘要翻译：一种通过用无机盐的水溶液处理来环己酮肟部分脱水的方法，其中将粗环己酮肟在其熔点以上提取，浓缩的铵盐溶液和/或羟基铵盐溶液在提取塔中逆流，然后将盐溶液与部分脱水的环己酮肟分离，通过蒸发浓缩并再循环至肟脱水过程。已经脱水至约4〜6重量％的含水量的环己酮肟熔体用高于其熔点的加热惰性气体处理，并将废气洗涤以除去夹带的环己酮肟。

7. 发明授权

US4659683A Regeneration of inactive and poisoned platinum catalysts 失效
标题翻译：无活性和中毒铂催化剂的再生
公开(公告)号：US4659683A
公开(公告)日：1987-04-21
申请号：US835271
申请日：1986-03-03
申请人： Werner Biffar , Otto Hofstadt , Klaus Kartte , Erwin Thomas , Franz-Josef Weiss
发明人： Werner Biffar , Otto Hofstadt , Klaus Kartte , Erwin Thomas , Franz-Josef Weiss
IPC分类号： B01J21/14 , B01J23/96 , B01J38/00 , B01J38/60 , B01J38/68 , C01B21/14 , C22B11/04
CPC分类号： B01J23/96 , B01J38/60 , B01J38/68 , Y10S502/516
摘要： Noble metal catalyst, in particular platinum catalysts, which are applied on carriers and have become poisoned by metals as a result of being used for many years in the preparation of hydroxyl-ammonium salts by catalytic reduction of nitric oxide with hydrogen in an aqueous mineral acid are regenerated by a process in which the metallic impurities are dissolved using nitric acid or aqua regia, the solution is neutralized, the troublesome metals are precipitated from the neutralized solution by means of a selective precipitating reagent, and the purified platinum solution is reused for the preparation of the catalyst. Organic complexing agents which form insoluble or sparingly soluble complexes with the metallic impurities are preferably used as precipitating reagents.
摘要翻译：贵金属催化剂，特别是铂催化剂，其被应用在载体上并且由于在无机酸水溶液中用氢催化还原一氧化氮，在多年的使用中被用来制备羟基铵盐而被金属中毒通过使用硝酸或王水溶解金属杂质的方法再生，溶液中和，通过选择性沉淀试剂从中和溶液中沉淀出麻烦的金属，并将纯化的铂溶液重新用于制备催化剂。与金属杂质形成不溶性或微溶性络合物的有机络合剂优选用作析出试剂。

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