专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US5124138A Work-up of aqueous mother liquors containing hydrochloric acid, sulfuric acid and their hydroxyl-ammonium and ammonium salts 失效
标题翻译：含有氢氯酸，硫酸及其羟基铵和氨基铵的水性母液的加工
公开(公告)号：US5124138A
公开(公告)日：1992-06-23
申请号：US631155
申请日：1990-12-20
申请人： Hugo Fuchs , Gerald Neubauer , Josef Ritz
发明人： Hugo Fuchs , Gerald Neubauer , Josef Ritz
IPC分类号： C01B21/14 , C02F1/26 , C07C249/08 , C07C251/44
CPC分类号： C01B21/1472 , C02F1/26
摘要： A process for working up aqueous mother liquors containing hydrochloric acid, sulfuric acid and their hydroxylammonium and ammonium salts, entails the mother liquors being intimately mixed with an excess of cyclohexanone based on the content of hydroxylammonium salts, while maintaining a pH of from 3 to 5.5 by adding alkali metal hydroxide solutions, and the cyclohexanone phase which contains cyclohexanone oxime being removed and washed with water until essentially free of chloride.
摘要翻译：处理含有盐酸，硫酸及其羟基铵和铵盐的含水母液的方法需要使母液基于羟基铵盐的含量与过量的环己酮充分混合，同时保持pH为3至5.5 通过加入碱金属氢氧化物溶液和除去环己酮肟的环己酮相，并用水洗涤至基本上不含氯化物。

32. 发明授权

US5120699A Platinum-on-graphite catalysts and the use thereof 失效
标题翻译：铂 - 铂石墨催化剂及其用途
公开(公告)号：US5120699A
公开(公告)日：1992-06-09
申请号：US730758
申请日：1991-07-16
申请人： Franz-Josef Weiss , Hugo Fuchs , Werner Steigleiter , Wolfgang Hoelderich , Luc Guns , Gerald Neubauer , Josef Ritz
发明人： Franz-Josef Weiss , Hugo Fuchs , Werner Steigleiter , Wolfgang Hoelderich , Luc Guns , Gerald Neubauer , Josef Ritz
IPC分类号： B01J21/18 , B01J23/42 , B01J27/02 , B01J35/02 , B01J35/10 , C01B21/14
CPC分类号： B01J21/18 , B01J23/42 , C01B21/1418 , B01J35/023
摘要： A platinum-on-graphite catalyst having a platinum content of from 0.01 to 5% w/w, wherein the graphite support has a particle size of from 1 to 600 .mu.m and the following particle size distribution:______________________________________ 183 to 600 .mu.m 15% v/v .+-. 15% absolute 68.3 to 183 .mu.m 30% v/v .+-. 20% 31.0 to 68.3 .mu.m 25% v/v .+-. 20% 17.1 to 31.0 .mu.m 15% v/v .+-. 10% 5.2 to 17.1 .mu.m 12% v/v .+-. 10% .sup.
摘要翻译：铂含量为0.01〜5％w / w的铂 - 石墨催化剂，其中石墨载体的粒度为1〜600μm，粒径分布为：183〜600μm15 ％v / v +/- 15％绝对值-68.3至183μm30％v / v +/- 20％-31.0至68.3μm25％v / v +/- 20％-17.1至31.0μm15％ v / v +/- 10％ - 5.2至17.1μm12％v / v +/- 10％ - <5.2μm5％v / v +/- 5％。 -

33. 发明授权

US4997635A Preparation of crystalline hydroxylammonium sulfate having a low ammonium sulfate content 失效
标题翻译：制备硫酸铵含量低的结晶羟基硫酸铵
公开(公告)号：US4997635A
公开(公告)日：1991-03-05
申请号：US521031
申请日：1990-05-09
申请人： Hugo Fuchs , Gerald Neubauer , Josef Ritz , Franz-Josef Weiss
发明人： Hugo Fuchs , Gerald Neubauer , Josef Ritz , Franz-Josef Weiss
IPC分类号： C01B21/14
CPC分类号： C01B21/1472
摘要： Crystalline hydroxylammonium sulfate is prepared by a process which comprises the following steps:(a) Bringing an aqueous solution which contains from 0.02 to 0.3 part by weight of ammonium sulfate and from 0.02 to 0.2 part by weight of sulfuric acid per part by weight of hydroxylammonium sulfate into contact with a basic ion exchanger and obtaining a solution which has a pH of from 3.0 to 4.0,(b) separating off the basic ion exchanger from the aqueous hydroxylammonium sulfate solution,(c) evaporating down the resulting aqueous hydroxylammonium sulfate solution under reduced pressure at
摘要翻译：通过包括以下步骤的方法制备结晶羟基硫酸铵：（a）将含有0.02至0.3重量份硫酸铵和0.02至0.2重量份硫酸的水溶液相对于每重量份的羟基铵硫酸盐与碱性离子交换剂接触，得到pH为3.0〜4.0的溶液，（b）从羟基硫酸铵水溶液中分离碱式离子交换剂，（c）将所得的羟基硫酸铵水溶液在<100℃下减压，得到浓硫酸羟基铵溶液，（d）结晶出不超过70重量％的存在于水溶液中的羟基硫酸铵，得到结晶羟基硫酸铵和母液，（e ）从母液中分离和结晶的羟基硫酸铵。

34. 发明授权

US4882430A Recovery of caprolactam from caprolactam distillation low boilers or high boilers or mixtures thereof 失效
标题翻译：从己内酰胺蒸馏低沸点锅炉或高锅炉或其混合物中回收己内酰胺
公开(公告)号：US4882430A
公开(公告)日：1989-11-21
申请号：US257274
申请日：1988-10-13
申请人： Gerald Neubauer , Emile De Decker , Hugo Fuchs , Bernhard Holzknecht , Josef Ritz
发明人： Gerald Neubauer , Emile De Decker , Hugo Fuchs , Bernhard Holzknecht , Josef Ritz
IPC分类号： C07D201/16
CPC分类号： C07D201/16
摘要： Caprolactam is recovered from caprolactam distillation low boilers or high boilers or mixtures thereof by the following steps:(a) crystallizing a low or high boiler or a mixture thereof to form purified capro-lactam crystals and a mother liquor,(b) separating off the purified caprolactam crystals to leave a mother liquor,(c) recycling from 5 to 90% by weight of the mother liquor of stage (b) into stage (a) and transferring the remainder of the mother liquor into the subsequent stage (d),(d) crystallizing the remaining mother liquor portion from stage (c) to form caprolactam crystals and a mother liquor, separating off the caprolactam crystals of stage(e) (d) and recycling the same into stage (a) to leave a mother liquor,(f) recycling from 20 to 99% by weight of mother liquor of stage (e) into stage (d) and channeling out the remainder of the impurity-containing mother liquor of stage (e).
摘要翻译：通过以下步骤从己内酰胺蒸馏低锅炉或高锅炉或其混合物回收己内酰胺：（a）使低或高锅炉或其混合物结晶以形成纯化的己内酰胺结晶和母液，（b）将纯化的己内酰胺晶体离开母液，（c）将阶段（b）的母液的5至90重量％循环到阶段（a）中，并将剩余的母液转移到后续阶段（d）中，（d）从阶段（c）中将剩余的母液部分结晶以形成己内酰胺晶体和母液，分离阶段（e）（d）的己内酰胺晶体并将其再循环到阶段（a）中以留下母液，（f）将阶段（e）的母液的20至99重量％循环到阶段（d）中，并且引出阶段（e）的含杂质母液的剩余部分。

35. 发明授权

US4737354A Preparation of hydroxylamine-O-sulfonic acid 失效
标题翻译：羟胺-O-磺酸的制备
公开(公告)号：US4737354A
公开(公告)日：1988-04-12
申请号：US8343
申请日：1987-01-29
申请人： Hugo Fuchs , Franz-Josef Weiss , Erwin Thomas , Josef Ritz
发明人： Hugo Fuchs , Franz-Josef Weiss , Erwin Thomas , Josef Ritz
IPC分类号： B01J23/00 , B01J23/40 , C01B21/093 , C01B21/14 , C01B21/00 , C01B21/54
CPC分类号： C01B21/093 , C01B21/1418
摘要： Hydroxylamine-O-sulfonic acid is prepared by(a) reacting hydroxylammonium sulfate with oleum at elevated temperatures,(b) isolating sulfuric acid from the hydroxylamine-O-sulfonic acid formed,(c) diluting the sulfuric acid which was obtained in stage (b) and which still contains hydroxylamino-O-sulfonic acid with water to 2-6N and heating it to 30.degree.-80.degree. C. for 1-10 hours,(d) preparing hydroxylamine by catalytic reduction of nitrogen monoxide with hydrogen using the dilute sulfuric acid from stage (c) in the presence of a noble metal catalyst at elevated temperatures.
摘要翻译：（a）在升高的温度下使羟基硫酸铵与发烟硫酸反应制备羟胺-O-磺酸，（b）从形成的羟胺-O-磺酸中分离出硫酸，（c）稀释在步骤 b），其还含有羟基氨基-O-磺酸与水至2-6N，并加热至30-80℃1-10小时，（d）通过使用氢气将一氧化氮催化还原制备羟胺在贵金属催化剂存在下，在高温下从阶段（c）稀释硫酸。

36. 发明授权

US4725360A Working up wastewaters containing hydroxylamine or its salts 失效
标题翻译：处理含有羟胺或其盐的废水
公开(公告)号：US4725360A
公开(公告)日：1988-02-16
申请号：US22875
申请日：1987-03-06
申请人： Hugo Fuchs , Erwin Thomas , Franz-Josef Weiss , Josef Ritz
发明人： Hugo Fuchs , Erwin Thomas , Franz-Josef Weiss , Josef Ritz
IPC分类号： C02F1/58 , B01J39/04 , B01J39/05 , C01B21/14 , C02F1/42
CPC分类号： C01B21/1454 , B01J39/043
摘要： Wastewaters containing hydroxylamine or its salts are worked up by a process in which the said wastewaters are passed over a strongly acidic ion exchanger, after which a 5-15% strength by weight aqueous sulfuric acid is passed over the said ion exchanger and a solution of hydroxylammonium sulfate in aqueous sulfuric acid is obtained.
摘要翻译：含有羟胺或其盐的废水通过所述废水通过强酸性离子交换剂的方法进行后处理，之后将5-15重量％的重量比的硫酸水溶液通过所述离子交换剂，得到硫酸氢硫酸铵。

37. 发明授权

US4599199A Obtaining caprolactam from epsilon-aminocaproic acid 失效
标题翻译：从ε-氨基己酸获得己内酰胺
公开(公告)号：US4599199A
公开(公告)日：1986-07-08
申请号：US696796
申请日：1985-01-31
申请人： Hugo Fuchs
发明人： Hugo Fuchs
IPC分类号： C07D201/08
CPC分类号： C07D201/08
摘要： Caprolactam is obtained by treating .epsilon.-aminocaproic acid with steam at elevated temperatures in the presence of a catalyst by a process in whcih .epsilon.-aminocaproic acid is introduced into a fluidized alumina bed and treated in the presence of steam at from 290.degree. to 400.degree. C.
摘要翻译：己内酰胺通过在催化剂存在下在高温下用蒸汽处理ε-氨基己酸获得，其中将ε-氨基己酸引入流化的氧化铝床中并在290°至400°的蒸气存在下进行处理 C。

38. 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。

39. 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。

40. 发明授权

US5637700A Purification of caprolactam 失效
标题翻译：己内酰胺的纯化
公开(公告)号：US5637700A
公开(公告)日：1997-06-10
申请号：US297719
申请日：1994-08-30
申请人： Hugo Fuchs , Gerald Neubauer , Claus-Ulrich Priester
发明人： Hugo Fuchs , Gerald Neubauer , Claus-Ulrich Priester
IPC分类号： C07B63/02 , C07D201/16 , C07D201/12
CPC分类号： C07D201/16
摘要： Caprolactam is purified by oxidative treatment in which mixtures which essentially contain the caprolactam to be purified and unsaturated lactams are treated with oxygen or an oxygen-containing gas mixture in an alkaline medium.
摘要翻译：通过氧化处理纯化己内酰胺，其中基本上含有要纯化的己内酰胺和不饱和内酰胺的混合物在碱性介质中用氧或含氧气体混合物处理。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式