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61. 发明授权

US4178287A Process for the purification of caprolactam by means of ozone 失效
标题翻译：通过臭氧净化己内酰胺的方法
公开(公告)号：US4178287A
公开(公告)日：1979-12-11
申请号：US968807
申请日：1978-12-12
申请人： Roberto Mattone , Mario Catoni
发明人： Roberto Mattone , Mario Catoni
IPC分类号： C07D201/16 , C07D223/10
CPC分类号： C07D223/10 , C07D201/16
摘要： There is described a process for the purification of caprolactam from the idable impurities present therein, by means of a treatment with an oxidizing agent consisting of ozone, the process comprising the steps of dissolving the polluted caprolactam into a solvent inert to ozone, such as water, and of causing the ozone to bubble through the resulting solution, the concentration of the caprolactam in the solution being preferably comprised between about 40% and 78% by weight of caprolactam, and the treatment being preferably effected at a temperature between the freezing temperature of the solution and 70.degree. C.
摘要翻译：描述了通过用由臭氧组成的氧化剂的处理从其中存在的可氧化杂质中纯化己内酰胺的方法，该方法包括以下步骤：将被污染的己内酰胺溶解在对臭氧惰性的溶剂中，例如水，并且通过所得溶液使臭氧气泡，所述溶液中己内酰胺的浓度优选为己内酰胺的约40％至78％（重量），并且处理优选在冷冻温度溶液和70℃

62. 发明授权

US4165328A Process for separating 11-cyanoundecanoic acid, cyclohexanone and .epsilon. - 失效
标题翻译：分离11-氰基十一烷酸，环己酮和{68-己内酰胺的方法
公开(公告)号：US4165328A
公开(公告)日：1979-08-21
申请号：US901089
申请日：1978-04-28
申请人： Kenji Nishimura , Haruhiko Miyazaki , Kenji Kuniyasu , Satoru Ono
发明人： Kenji Nishimura , Haruhiko Miyazaki , Kenji Kuniyasu , Satoru Ono
IPC分类号： C07C45/00 , C07C45/78 , C07C45/80 , C07C45/82 , C07C49/403 , C07D201/02 , C07D201/04 , C07D201/16 , C07C121/407
CPC分类号： C07C255/00 , C07C45/783 , C07C45/80 , C07C45/82 , C07D201/16
摘要： Disclosed is a process for separating 11-cyanoundecanoic acid, cyclohexanone and .epsilon.-caprolactam from a pyrolysis product obtained by pyrolyzing 1,1'-peroxydicyclohexylamine in the presence of steam at a temperature of 300.degree. to 1,000.degree. C. The pyrolysis product is first contacted with a mixture comprised of aqueous ammonia and at least one organic solvent selected from benzene, toluene and xylene, and the so prepared liquid is separated into the oily layer and the aqueous layer. On one hand, the oily layer is distilled to separate cyclohexanone therefrom. On the other hand, the aqueous layer is acidified to a pH of below 4.0 by adding thereto a mineral acid and maintained at a temperature of 40.degree. to 100.degree. C. to separate crude 11-cyanoundecanoic acid in molten form from the aqueous layer, and then, the separated crude molten 11-cyanoundecanoic acid is washed with hot water to extract .epsilon.-caprolactam therefrom.
摘要翻译：公开了一种通过在300℃至1000℃的温度下在1,1'-二氧化二环己基胺蒸气存在下热解得到的热解产物中分离出11-氰基十一烷酸，环己酮和ε-己内酰胺的方法。热解产物是先与由氨水和选自苯，甲苯和二甲苯中的至少一种有机溶剂组成的混合物接触，将如此制备的液体分离成油层和水层。一方面，将油层蒸馏以分离出环己酮。另一方面，通过向其中加入无机酸将水层酸化至pH值低于4.0，并保持在40℃至100℃的温度下，将熔融形式的粗的11-氰基十一烷酸与水层分离，然后，将分离的粗熔融的11-氰基十一烷酸用热水洗涤以从其中提取ε-己内酰胺。

63. 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。

64. 发明授权

US4148793A Process for the purification of epsilon-caprolactam 失效
标题翻译： ε-己内酰胺纯化方法
公开(公告)号：US4148793A
公开(公告)日：1979-04-10
申请号：US832002
申请日：1977-09-09
申请人： Harry Danziger , Ludwig Deibele , Bernd-Ulrich Kaiser
发明人： Harry Danziger , Ludwig Deibele , Bernd-Ulrich Kaiser
IPC分类号： C07D201/16
CPC分类号： C07D201/16
摘要： Process for the removal of residues of solvent from crystallized .epsilon.-caprolactam, wherein the major quantity of solvent is removed in a first stage by distillation in the presence of water in an amount so that the water content of the residue of the first stage is from 0.5 to 6% by weight, and in a second stage by distilling water and any residues of solvent still present.
摘要翻译：从结晶的ε-己内酰胺中除去溶剂残留物的方法，其中在第一阶段通过在水存在下蒸馏除去主要量的溶剂，其量使得第一阶段的残留物的水含量来自 0.5至6重量％，并且在第二阶段通过蒸馏水和仍然存在的溶剂的任何残留物。

65. 发明授权

US4139696A Continuous polymerization of 2-pyrrolidone 失效
标题翻译： 2-吡咯烷酮的连续聚合
公开(公告)号：US4139696A
公开(公告)日：1979-02-13
申请号：US792421
申请日：1977-04-29
申请人： Byron E. Anshus , Kiyoshi Katsumoto , Ira M. Serkes
发明人： Byron E. Anshus , Kiyoshi Katsumoto , Ira M. Serkes
IPC分类号： B01D3/34 , C07D201/16 , C07D207/26 , C07D207/267 , C08G69/24
CPC分类号： C07D207/267 , B01D3/34 , C07D201/16 , C08G69/24
摘要： 2-Pyrrolidone is continuously polymerized to a high-molecular-weight particulate product by the stirred polymerization of the carbonated alkaline polymerizate. The polymerizate is prepared by contacting an aqueous hydroxide with excess 2-pyrrolidone, maintaining the resultant alkaline mixture at an elevated temperature for sufficient time to reduce the 2-pyrrolidone dimer content of the mixture to within the desired limits, dehydrating the alkaline mixture to reduce the water content to within the desired limits, and contacting the alkaline mixture with carbon dioxide to form the carbonated alkaline polymerizate. The paste of particular polypyrrolidone and liquid polymerizate is continuously withdrawn from the reactor, neutralized with aqueous acid and washed with warm water.
摘要翻译：通过碳酸化碱性聚合物的搅拌聚合将2-吡咯烷酮连续聚合成高分子量颗粒产物。通过使氢氧化钠与过量的2-吡咯烷酮接触来制备聚合物，将得到的碱性混合物保持在升高的温度下足够的时间以将混合物的2-吡咯烷酮二聚体含量降低至所需限度内，使碱性混合物脱水以减少水含量达到所需限度内，并使碱性混合物与二氧化碳接触以形成碳酸化的碱性聚合物。将特定聚吡咯烷酮和液体聚合物的糊料从反应器中连续取出，用酸水溶液中和，并用温水洗涤。

66. 发明授权

US4107160A Continuous process for the recovery of caprolactam 失效
标题翻译：持续的己内酰胺回收方法
公开(公告)号：US4107160A
公开(公告)日：1978-08-15
申请号：US827370
申请日：1977-08-24
申请人： Ovidiu Dicoi , Erwin Doerr
发明人： Ovidiu Dicoi , Erwin Doerr
IPC分类号： C07D201/12 , C07D201/16
CPC分类号： C07D201/16 , C07D201/12
摘要： A process for the continuous recovery of caprolactam from either solid polycaprolactam waste by depolymerization or from liquid polycaprolactam extraction water from an extraction zone where, in either instance, a caprolactam water vapor mixture is produced and subsequently upgraded in a distillation zone to provide a dilute mixture of caprolactam and water vapor. A minor portion of this dilute caprolactam water vapor is condensed and recycled to the distillation zone. The remaining, major portion of this mixture is compressed and admixed with fresh steam, superheated and passed to either the extraction zone or depolymerization reaction.
摘要翻译：从固体聚己内酰胺废物通过解聚连续回收己内酰胺或从液体聚己内酰胺萃取水中从萃取区连续回收己内酰胺的方法，其中在任何一种情况下产生己内酰胺水蒸气混合物，随后在蒸馏区中升级以提供稀释混合物的己内酰胺和水蒸汽。该稀少己内酰胺水蒸气的一小部分被冷凝并再循环到蒸馏区。将该混合物的剩余部分压缩并与新鲜蒸汽混合，过热并通过萃取区或解聚反应。

67. 发明授权

US4050994A Recovery of 2-pyrrolidone from dilute alkaline solutions 失效
标题翻译：从稀碱溶液中回收2-吡咯烷酮
公开(公告)号：US4050994A
公开(公告)日：1977-09-27
申请号：US745501
申请日：1976-11-26
申请人： Byron E. Anshus
发明人： Byron E. Anshus
IPC分类号： C08G69/00 , B01D3/34 , C07D201/16 , C07D207/26 , C07D207/267 , C08G69/24 , C07D207/12
CPC分类号： C07D207/267 , B01D3/34 , C07D201/16
摘要： A two-stage evaporative method for recovering polymerizable 2-pyrrolidone from alkaline aqueous solutions such as those obtained by washing the catalyst from an incompletely reacted polypyrrolidone polymerizate, includes the steps of neutralizing the base with mineral acid, removing most of the water in an initial reduced pressure evaporation and recovering the pyrrolidone from a salt/pyrrolidone slurry by vaporization under reduced pressure.
摘要翻译：从由不完全反应的聚吡咯烷酮聚合物洗涤催化剂得到的碱性水溶液中回收可聚合的2-吡咯烷酮的两阶段蒸发方法包括以无机酸中和碱的步骤，初始地除去大部分水减压蒸发并通过在减压下汽化从盐/吡咯烷酮浆液中回收吡咯烷酮。

68. 发明授权

US4036830A Process for the recovery of pure .epsilon.-caprolactam from an aqueous solution thereof 失效
标题翻译：从其水溶液中回收纯的{68-己内酰胺的方法
公开(公告)号：US4036830A
公开(公告)日：1977-07-19
申请号：US681745
申请日：1976-04-29
申请人： Abraham H. de Rooij , Reijer Goettsch
发明人： Abraham H. de Rooij , Reijer Goettsch
IPC分类号： C01C1/24 , C07D201/16
CPC分类号： C07D201/16
摘要： A process for recovering substantially pure .epsilon.-caprolactam from a contaminated solution thereof is disclosed by concentrating, if needed, the caprolactam content of the solution to about 60-75 weight percent then extracting the concentrated solution with an organic solvent such as benzene or the like, then recovering the resulting caprolactam-laden organic solution.
摘要翻译：通过将需要的己内酰胺含量浓缩至约60-75％（重量），然后用有机溶剂如苯等萃取浓缩溶液来公开从其污染溶液中回收基本上纯的ε-己内酰胺的方法，然后回收所得的己内酰胺负载有机溶液。

69. 发明授权

US4001274A Recovery of 2-pyrrolidone from aqueous solutions 失效
标题翻译：从水溶液中恢复2-吡咯烷酮
公开(公告)号：US4001274A
公开(公告)日：1977-01-04
申请号：US635996
申请日：1975-11-28
申请人： Kiyoshi Katsumoto
发明人： Kiyoshi Katsumoto
IPC分类号： C07D201/16 , C07D207/12
CPC分类号： C07D201/16
摘要： 2-PYRROLIDONE IS SEPARATED FROM AQUEOUS SOLUTION BY PHASE SEPARATION IN THE PRESENCE OF POTASSIUM HYDROGEN PHOSPHATE.

70. 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。

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