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公开(公告)号:US4963672A
公开(公告)日:1990-10-16
申请号:US448899
申请日:1989-12-12
申请人: Franz Merger , Rolf Fischer , Wolfgang Harder , Claus-Ulrich Priester , Uwe Vagt
发明人: Franz Merger , Rolf Fischer , Wolfgang Harder , Claus-Ulrich Priester , Uwe Vagt
IPC分类号: B01J23/46 , C07B61/00 , C07D201/08 , C07D201/16
CPC分类号: C07D201/08 , Y02P20/52
摘要: Caprolactam is prepared in a process comprising the following steps:(a) reacting the 5-formylvaleric ester with liquid ammonia as reaction medium and hydrogen in the presence of a ruthenium catalyst in liquid phase at from 80.degree. to 140.degree. C. under a hydrogen partial pressure of from 40 to 100 bar,(b) replacing the reaction medium ammonia by an aromatic hydrocarbon having a boiling point of from 80.degree. to 240.degree. C. which is liquid under the reaction conditions,(c) heating the resulting mixture in liquid phase under superatmospheric pressure at 230.degree.-350.degree. C. to form caprolactam, and(d) isolating caprolactam from the resulting reaction mixture.
摘要翻译: 己内酰胺以包括以下步骤的方法制备:(a)使5-甲酰基戊酸酯与液氨作为反应介质和氢在钌催化剂存在下在液相中在80-140℃下在氢气 分压为40〜100巴,(b)在反应条件下用沸点为80〜240℃的芳烃替代反应介质氨,(c)将所得混合物加热 液相在超大气压下在230-350℃下反应形成己内酰胺,和(d)从所得反应混合物中分离己内酰胺。
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公开(公告)号:US4731445A
公开(公告)日:1988-03-15
申请号:US007585
申请日:1987-01-28
申请人: Hans-Martin Hutmacher , Franz Merger , Franz J. Broecker , Rolf Fischer , Uwe Vagt , Wolfgang Harder , Claus-Ulrich Priester
发明人: Hans-Martin Hutmacher , Franz Merger , Franz J. Broecker , Rolf Fischer , Uwe Vagt , Wolfgang Harder , Claus-Ulrich Priester
CPC分类号: C07D201/08 , Y02P20/52
摘要: Caprolactam is prepared by a process in which(a) the 5-formylvalerate is reacted with excess ammonia and hydrogen in the presence of an alkanol as the solvent and in the presence of a hydrogenation catalyst under superatmospheric pressure in the liquid phase at from 40.degree. to 130.degree. C.,(b) excess ammonia and hydrogen are separated off from the reaction mixture,(c) the resulting reaction mixture is reacted with water at elevated temperatures with simultaneous removal of alkanols, and(d) the reaction mixture thus obtained is heated to 150.degree.-370.degree. C. and .epsilon.-caprolactam is obtained.
摘要翻译: 己内酰胺通过以下方法制备:其中(a)5-烷基戊酸酯与过量的氨和氢在作为溶剂的链烷醇存在下和氢化催化剂存在下,在超大气压下在40℃的液相中反应 (b)从反应混合物中分离出过量的氨和氢,(c)将所得的反应混合物在高温下与水反应,同时除去链烷醇,和(d)由此得到的反应混合物 加热至150-370℃,得到ε-己内酰胺。
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公开(公告)号:US4730041A
公开(公告)日:1988-03-08
申请号:US7789
申请日:1987-01-28
申请人: Hans-Martin Hutmacher , Franz Merger , Franz J. Broecker , Rolf Fischer , Uwe Vagt , Wolfgang Harder , Claus-Ulrich Priester , Heinz-Walter Schneider , Wolfgang Richter
发明人: Hans-Martin Hutmacher , Franz Merger , Franz J. Broecker , Rolf Fischer , Uwe Vagt , Wolfgang Harder , Claus-Ulrich Priester , Heinz-Walter Schneider , Wolfgang Richter
IPC分类号: B01J23/74 , B01J23/78 , B01J25/00 , C07B61/00 , C07D201/08
CPC分类号: C07D201/08 , Y02P20/52
摘要: Caprolactam is prepared by a process in which(a) a 5-formylvalerate is reacted with excess ammonia and hydrogen in the presence of an alkanol as a solvent and in the presence of a hydrogenation catalyst under superatmospheric pressure in the liquid phase at from 40.degree. to 130.degree. C.,(b) excess ammonia and hydrogen are separated off from the reaction mixture and(c) the reaction mixture thus obtained is heated to 150.degree.-250.degree. C. and .epsilon.-caprolactam is obtained.
摘要翻译: 己内酰胺通过以下方法制备:其中(a)5-烷基戊酸酯与过量的氨和氢在烷醇作为溶剂的存在下和氢化催化剂的存在下在超大气压下在40℃的液相中反应 至130℃,(b)从反应混合物中分离出过量的氨和氢,(c)将所得反应混合物加热至150-250℃,得到ε-己内酰胺。
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公开(公告)号:US08952146B2
公开(公告)日:2015-02-10
申请号:US13440077
申请日:2012-04-05
申请人: Bir Kapoor , Preeti Lodha , Parag Patil , Aditya Shrivastava , Kishore Shouche , Eric Uerdingen , Michael Siemer , Thomas Wisniewski , Uwe Vagt , Massonne Klemens
发明人: Bir Kapoor , Preeti Lodha , Parag Patil , Aditya Shrivastava , Kishore Shouche , Eric Uerdingen , Michael Siemer , Thomas Wisniewski , Uwe Vagt , Massonne Klemens
摘要: The present invention provides a process for producing low fibrillating cellulose fibers by a dry-jet-wet spinning process wherein cellulose is treated with a solvent containing imidazolium ionic salt in a spinneret maintained at a temperature of 100-120° C. and the spun fibers drawn to the coagulation bath containing ionic salt with the draw ratio less than 5, to produce fibers with fibrillating index less than or equal to 3.
摘要翻译: 本发明提供了一种通过干喷射 - 湿法纺丝方法生产低纤维化纤维素纤维的方法,其中在保持在100-120℃温度的喷丝头中用含咪唑鎓离子盐的溶剂处理纤维素,纺丝纤维 拉伸到含有小于5的拉伸比的离子盐的凝结浴中,以产生纤维含量小于或等于3的纤维。
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公开(公告)号:US4950429A
公开(公告)日:1990-08-21
申请号:US327432
申请日:1989-03-23
申请人: Uwe Vagt , Rolf Fischer , Franz Merger , Hans-Martin Hutmacher
发明人: Uwe Vagt , Rolf Fischer , Franz Merger , Hans-Martin Hutmacher
IPC分类号: C07C51/09 , C07C67/00 , C07C227/00 , C07C227/08 , C07C229/08 , C07C227/04
CPC分类号: C07C227/08 , C07C51/09
摘要: 6-Aminocaproic acid is prepared by(a) reacting a 5-formylvaleric acid ester with water in the presence of an acid agent at 30.degree.-200.degree. C. and(b) reacting the 5-formylvaleric acid thus obtained with excess ammonia and hydrogen in the presence of a hydrogenation catalyst and of a solvent which is inert under the reaction conditions at 50.degree.-150.degree. C. under superatmospheric pressure.
摘要翻译: 6-氨基己酸的制备方法是:(a)在酸性试剂存在下,在30℃-200℃下使5-甲酰基戊酸酯与水反应,和(b)使所得到的5-甲酰基戊酸与过量的氨和 在氢化催化剂存在下,在50〜150℃的反应条件下,在超大气压下进行惰性的溶剂。
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公开(公告)号:US4745228A
公开(公告)日:1988-05-17
申请号:US65959
申请日:1987-06-24
申请人: Martin Decker , Rolf Fischer , Wolfgang Franzischka , Rudolf Kummer , Heinz-Walter Schneider , Uwe Vagt
发明人: Martin Decker , Rolf Fischer , Wolfgang Franzischka , Rudolf Kummer , Heinz-Walter Schneider , Uwe Vagt
CPC分类号: C07C45/48
摘要: Cyclic ketones of the formula ##STR1## where n is an integer from 4 to 6, are prepared by converting an aliphatic dicarboxylate of the formulaR.sup.1 OCC--(CH.sub.2).sub.n --COOR.sup.2 IIwhere n has the above meaning, R.sup.1 and R.sup.2 are each alkyl, cycloalkyl, aralkyl or aryl and R.sup.2 may furthermore be hydrogen, at from 150.degree. to 450.degree. C. over a solid oxide catalyst.
摘要翻译: 通过将式R 1 OCC-(CH 2)n -COOR 2 II的脂肪族二羧酸酯转化为其中n具有上述含义,R1和R2各自为烷基,其中n为4-6的整数,其中n为4至6的整数的式 ,环烷基,芳烷基或芳基,R2可以为氢,在固体氧化物催化剂上为150-450℃。
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公开(公告)号:US20120253030A1
公开(公告)日:2012-10-04
申请号:US13440076
申请日:2012-04-05
申请人: Bir KAPOOR , Preeti LODHA , Parag PATIL , Aditya SHRIVASTAVA , Kishore SHOUCHE , Eric UERDINGEN , Michael SIEMER , Thomas WISNIEWSKI , Uwe VAGT , Massonne KLEMENS
发明人: Bir KAPOOR , Preeti LODHA , Parag PATIL , Aditya SHRIVASTAVA , Kishore SHOUCHE , Eric UERDINGEN , Michael SIEMER , Thomas WISNIEWSKI , Uwe VAGT , Massonne KLEMENS
CPC分类号: C08B1/003 , D01D5/06 , D01F2/02 , Y02P20/542
摘要: A process for manufacturing low-fibrillating cellulosic fibers by a dry-jet-wet spinning process is provided. The cellulose is treated with a specific ionic liquid based solvent to produce the said fibers with fibrillating index less than or equal to (3).
摘要翻译: 提供了一种通过干喷射 - 湿法纺丝方法制造低纤维化纤维素纤维的方法。 纤维素用特定的离子液体溶剂处理以产生具有小于或等于(3)的原纤化指数的所述纤维。
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公开(公告)号:US5068398A
公开(公告)日:1991-11-26
申请号:US448900
申请日:1989-12-12
申请人: Franz Merger , Rolf Fischer , Wolfgang Harder , Claus-Ulrich Priester , Uwe Vagt
发明人: Franz Merger , Rolf Fischer , Wolfgang Harder , Claus-Ulrich Priester , Uwe Vagt
IPC分类号: B01J23/46 , C07B61/00 , C07C227/04 , C07C227/08 , C07C229/08
CPC分类号: C07C227/08
摘要: 6-Aminocaproic esters are prepared by reacting alkyl 5-formylvalerates with excess ammonia and hydrogen in the presence of ruthenium catalysts at elevated temperature under superatmospheric pressure in liquid ammonia as reaction medium.
摘要翻译: 6-氨基己酸酯通过在钌催化剂存在下,在高于大气压的高温下在液氨中作为反应介质使5-甲酰基戊酸烷基酯与过量的氨和氢反应来制备。
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公开(公告)号:US5032684A
公开(公告)日:1991-07-16
申请号:US551790
申请日:1990-07-12
申请人: Gerald Neubauer , Josef Ritz , Hugo Fuchs , David Agar , Rolf Fischer , Uwe Vagt
发明人: Gerald Neubauer , Josef Ritz , Hugo Fuchs , David Agar , Rolf Fischer , Uwe Vagt
IPC分类号: C07D223/10 , C07D201/16
CPC分类号: C07D201/16
摘要: Caprolactam is purified continuously by passing a 75-95% strength by weight aqueous caprolactam solution together with hydrogen at 50.degree.-95.degree. C. and 1.5-100 bar upward through a fixed-bed supported palladium or nickel catalyst in a tubular zone while maintaining a residence time of from 10 to 100 min.
摘要翻译: 通过将75-95%的重量比的己内酰胺水溶液与氢在-50-95℃和1.5-100巴上通过固定床负载的钯或镍催化剂在管状区域中连续纯化,同时保持己内酰胺 停留时间为10至100分钟。
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10.
公开(公告)号:US4767856A
公开(公告)日:1988-08-30
申请号:US133274
申请日:1987-12-15
申请人: Toni Dockner , Manfred Sauerwald , Rolf Fischer , Hans-Martin Hutmacher , Claus-Ulrich Priester , Uwe Vagt
发明人: Toni Dockner , Manfred Sauerwald , Rolf Fischer , Hans-Martin Hutmacher , Claus-Ulrich Priester , Uwe Vagt
IPC分类号: C07D201/08 , C07D201/16
CPC分类号: C07D201/08
摘要: In an improved process for preparing caprolactam by heating 6-aminocaproic acid, an ester or amide or mixture thereof in the presence of an inert reaction medium which is liquid under the reaction conditions and has a boiling point above that of caprolactam, the improvement comprises using as the reaction medium a hydrocarbon, maintaining a temperature of from 150.degree. to 350.degree. C., charging the 6-aminocaproic acid, ester, amide or mixture thereof at a rate commensurate with their rate of conversion, and separating caprolactam from the reaction mixture at a rate commensurate with its rate of formation.
摘要翻译: 在通过在反应条件下为液体并且沸点高于己内酰胺的惰性反应介质的惰性反应介质的存在下加热6-氨基己酸,酯或酰胺或其混合物来制备己内酰胺的改进方法中,改进包括使用 作为反应介质,将烃保持在150℃至350℃的温度下,以与其转化速率相称的速率加入6-氨基己酸,酯,酰胺或其混合物,并将己内酰胺与反应混合物分离 其速度与其形成速度相称。
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