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1. 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。

2. 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。

3. 发明授权

US4806638A Neutralization of reaction mixtures obtained by Beckman rearrangement of cyclohexanone oxime 失效
标题翻译：通过Beckman重排环己酮肟获得的反应混合物中和
公开(公告)号：US4806638A
公开(公告)日：1989-02-21
申请号：US109405
申请日：1987-10-19
申请人： Uwe Brand , Ruediger Schmitz , Ernst Deuker , Hugo Fuchs
发明人： Uwe Brand , Ruediger Schmitz , Ernst Deuker , Hugo Fuchs
IPC分类号： C07D201/04 , C07D201/16
CPC分类号： C07D201/16
摘要： Reaction mixtures obtained by Beckmann rearrangement of cyclohexanone oxime with sulfuric acid or oleum are neutralized by a process which comprises the following steps:(a) mixing the reaction mixture with recycled ammonium sulfate mother liquor whose concentration is chosen so that no solid ammonium sulfate is precipitated during the neutralization,(b) neutralization by feeding gaseous ammonia which contains water or an aqueous ammonium sulfate solution in finely divided liquid form through a plurality of nozzle orifices into the solution of the reaction mixture in the ammonium sulfate mother liquor at elevated temperatures,(c) separation of crude lactam from the aqueous ammonium sulfate solution,(d) evaporation of the ammonium sulfate solution under reduced pressure and with separation of the crystalline ammonium sulfate from the ammonium sulfate mother liquor and(e) recycling of the ammonium sulfate mother liquor to stage a).
摘要翻译：通过包含以下步骤的方法中和通过Beckmann重排环己酮肟与硫酸或发烟硫酸得到的反应混合物：（a）将反应混合物与其浓度选择为不使固体硫酸铵沉淀的再循环硫酸铵母液混合在中和期间，（b）通过将高分子液体形式的含有水或硫酸铵水溶液的气态氨通过多个喷嘴孔送入反应混合物在硫酸铵母液的溶液中，在升高的温度下中和（b） c）将粗内酰胺与硫酸铵水溶液分离，（d）在减压下蒸发硫酸铵溶液，并从硫酸铵母液中分离结晶硫酸铵，和（e）将硫酸铵母液到a）。

4. 发明授权

US4350630A Continuous extraction of caprolactam from an aqueous solution containing caprolactam and its oligomers 失效
标题翻译：从含有己内酰胺及其低聚物的水溶液中连续萃取己内酰胺
公开(公告)号：US4350630A
公开(公告)日：1982-09-21
申请号：US276815
申请日：1981-06-25
申请人： Hugo Fuchs , Uwe Brand , Ernst Deuker , Elmar Frommer
发明人： Hugo Fuchs , Uwe Brand , Ernst Deuker , Elmar Frommer
IPC分类号： C07D201/16
CPC分类号： C07D201/16
摘要： In a process for continuously extracting caprolactam from an aqueous solution, containing caprolactam and its oligomers, with organic solvents, by introducing the aqueous solution into the upper part of an extraction zone and organic solvents into the lower part, and taking off a solution of caprolactam in organic solvents at the upper end and an aqueous phase containing caprolactam oligomers at the lower end, the improvement that liquid aromatic hydrocarbons are used and the extraction is carried out at a pH of from 2.0 to 6.0.
摘要翻译：在从有机溶剂中含有己内酰胺及其低聚物的水溶液中连续提取己内酰胺的方法中，通过将水溶液引入提取区的上部，将有机溶剂引入下部，并将己内酰胺在上端的有机溶剂和下端含有己内酰胺低聚物的水相中，使用液态芳烃的改进，并且在2.0至6.0的pH下进行萃取。

5. 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。

6. 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。

7. 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。

8. 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。

9. 发明授权

US5700358A Recovery of caprolactam from oligomers and/or polymers of caprolactam 失效
标题翻译：从己内酰胺的低聚物和/或聚合物中回收己内酰胺
公开(公告)号：US5700358A
公开(公告)日：1997-12-23
申请号：US396623
申请日：1995-03-01
申请人： Hugo Fuchs , Josef Ritz , Gerald Neubauer
发明人： Hugo Fuchs , Josef Ritz , Gerald Neubauer
IPC分类号： C07D201/12 , C07D201/16 , C08G69/14 , C08G69/46 , B01D3/34
CPC分类号： C07D201/12 , C07D201/16
摘要： Caprolactam is recovered from oligomers and/or polymers of caprolactam by cleavage of oligomers and/or polymers of caprolactam and subsequent working up by distillation of the caprolactam obtained in the cleavage, by a process including (a) cleaving oligomers and/or polymers of caprolactam to obtain an aqueous reaction mixture which contains caprolactam, (b) removing water from the reaction mixture obtained under (a) to obtain a residue, (c) distilling the residue obtained under (b) in an acidic medium and (d) then distilling the distillate in an alkaline medium to obtain caprolactam, or (c') distilling the residue obtained under (b) in an alkaline medium and (d') then distilling the distillate in an acidic medium to obtain caprolactam.
摘要翻译：通过裂解己内酰胺的低聚物和/或聚己内酯并随后通过蒸馏在切割中获得的己内酰胺来处理己内酰胺从己内酰胺的低聚物和/或聚合物中回收己内酰胺，方法包括（a）裂解己内酰胺的低聚物和/或聚合物得到含有己内酰胺的水性反应混合物，（b）从（a）得到的反应混合物中除去水，得到残渣，（c）将酸性介质中的（b）得到的残渣蒸馏，然后蒸馏在碱性介质中的馏出物得到己内酰胺，或（c'）将在（b）获得的残余物在碱性介质中蒸馏，然后（d'），然后在酸性介质中蒸馏出馏出物，得到己内酰胺。

10. 发明授权

US5155081A Platinum-on-graphite catalysts 失效
标题翻译：铂 - 铂石墨催化剂
公开(公告)号：US5155081A
公开(公告)日：1992-10-13
申请号：US730756
申请日：1991-07-16
申请人： Werner Steigleiter , Wolfgang Hoelderich , Franz-Josef Weiss , Hugo Fuchs , Luc Guns , Gerald Neubauer , Josef Ritz
发明人： Werner Steigleiter , Wolfgang Hoelderich , Franz-Josef Weiss , Hugo Fuchs , Luc Guns , Gerald Neubauer , Josef Ritz
IPC分类号： B01J21/18 , B01J23/42 , B01J27/02 , B01J37/20 , C01B21/14
CPC分类号： C01B21/1418 , B01J21/18 , B01J23/42
摘要： A platinum-on-graphite catalyst having a platinum content of from 0.01 to 5% w/w, wherein the graphite support has an apparent density of from 1.7 to 2.2 g/ml and the use thereof as a hydrogenation catalyst.
摘要翻译：铂含量为0.01〜5％w / w的铂 - 石墨催化剂，其中石墨载体的表观密度为1.7〜2.2g / ml，其用作氢化催化剂。

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