公开(公告)号：US5700358A

公开(公告)日：1997-12-23

申请号：US396623

申请日：1995-03-01

Applicant: Hugo Fuchs ,  Josef Ritz ,  Gerald Neubauer

Inventor： Hugo Fuchs ,  Josef Ritz ,  Gerald Neubauer

IPC: C07D201/12 ,  C07D201/16 ,  C08G69/14 ,  C08G69/46 ,  B01D3/34

CPC classification number: C07D201/12 ,  C07D201/16

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5155081A

公开(公告)日：1992-10-13

申请号：US730756

申请日：1991-07-16

Applicant: Werner Steigleiter ,  Wolfgang Hoelderich ,  Franz-Josef Weiss ,  Hugo Fuchs ,  Luc Guns ,  Gerald Neubauer ,  Josef Ritz

Inventor： Werner Steigleiter ,  Wolfgang Hoelderich ,  Franz-Josef Weiss ,  Hugo Fuchs ,  Luc Guns ,  Gerald Neubauer ,  Josef Ritz

IPC: B01J21/18 ,  B01J23/42 ,  B01J27/02 ,  B01J37/20 ,  C01B21/14

CPC classification number: C01B21/1418 ,  B01J21/18 ,  B01J23/42

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4889704A

公开(公告)日：1989-12-26

申请号：US184085

申请日：1988-04-20

Applicant: Hugo Fuchs ,  Josef Ritz ,  Erwin Thomas ,  Franz-Josef Weiss

Inventor： Hugo Fuchs ,  Josef Ritz ,  Erwin Thomas ,  Franz-Josef Weiss

IPC: B01J23/42 ,  C01B21/14

CPC classification number: C01B21/1418

Abstract: Hydroxylammonium salts are prepared by catalytic reduction of nitrogen monoxide with hydrogen at elevated temperature in a dilute aqueous solution of a mineral acid in the presence, in suspension, of a supported platinum catalyst obtainable by precipitating metallic platinum from an aqueous platinum solution onto a support by means of a reducing agent in the presence of an organic chelating agent and partially poisoned with sulfur.

Abstract translation: 羟基铵盐通过在无水酸的稀的水溶液中在氢气的一个一氧化碳中催化还原一氧化氮，在悬浮液中存在的载体铂催化剂存在下，通过将金属铂从铂水溶液中沉淀到载体上而得到 在有机螯合剂存在下还原剂并用硫部分中毒的还原剂的方法。

公开(公告)号：US4837362A

公开(公告)日：1989-06-06

申请号：US3658

申请日：1987-01-15

Applicant: Hugo Fuchs ,  Franz-Josef Weiss

Inventor： Hugo Fuchs ,  Franz-Josef Weiss

IPC: C07C53/08 ,  C07C51/00 ,  C07C51/41 ,  C07C51/43 ,  C07C53/122 ,  C07C67/00

CPC classification number: C07C51/412

Abstract: Pure hydroxylammonium salts of fatty acids of 1 to 4 carbon atoms are prepared by reacting hydroxylammonium sulfate and alkali metal salts of fatty acids with 1 to 4 carbon atoms in solution at elevated temperatures and separating off the hydroxylammonium salts of fatty acids of 1 to 4 carbon atoms by(a) reacting hydroxylammonium sulfate and alkali metal salts of fatty acids of 1 to 4 carbon atoms in solution in water or alkanols of 1 to 3 carbon atoms or mixtures thereof at 20.degree.-70.degree. C.,(b) evaporating the solvent out of the reaction mixture to obtain a dry residue,(c) isolating the hydroxlammonium salts of fatty acids of 1 to 4 carbon atoms from the dry residue thus obtained by sublimation under reduced pressure.

Abstract translation: 1〜4个碳原子的脂肪酸的纯羟基铵盐是通过羟基硫酸铵与脂肪酸的碱金属盐在溶液中在高温下反应而制成的，分离出1至4个碳原子的脂肪酸的羟基铵盐 原子通过（a）使羟基硫酸铵和1至4个碳原子的脂肪酸的碱金属盐在1至3个碳原子的水或链烷醇或其混合物的溶液中在20℃-70℃下反应，（b）将 溶剂从反应混合物中得到干燥残余物，（c）从减压升华得到的干燥残余物中分离出1至4个碳原子的脂肪酸的羟基铵盐。

公开(公告)号：US4795571A

公开(公告)日：1989-01-03

申请号：US154227

申请日：1988-02-10

Applicant: Bernhard Holzknecht ,  Hugo Fuchs ,  Eckhard Hetzel ,  Klaus Wintermantel ,  Peter Thoma

Inventor： Bernhard Holzknecht ,  Hugo Fuchs ,  Eckhard Hetzel ,  Klaus Wintermantel ,  Peter Thoma

IPC: B01D9/00 ,  B01D9/02 ,  B01D9/04 ,  C07B63/00 ,  C07C67/00 ,  C07C241/00 ,  C07C265/14 ,  C07D201/16

CPC classification number: C07D201/16 ,  B01D9/0013

Abstract: Frozen crystal layers are purified by a process in which these crystal layers, after they have been frozen out from a melt or solution on a cooling surface, are brought into contact with a purifying liquid and thus purified over their entire thickness, after which the said layers are separated from the purifying liquid and then melted, wherein the temperature of the crystal layers and of the purifying liquid is close to the melting point or solubility temperature, mass transfer at the phase boundary is intensified by forced convection, and this purification is carried out in the course of from 1 to 60 minutes on layers having a thickness of from 0.2 to 10 mm.

Abstract translation: 冷冻的晶体层通过这些方法纯化，其中这些晶体层在从冷却表面上的熔体或溶液中冷冻出来之后，与净化液体接触并由此在其整个厚度上净化，之后所述 将层与净化液分离，然后熔融，其中晶体层和净化液的温度接近熔点或溶解温度，通过强制对流加强相边界处的质量传递，并进行该纯化 在厚度为0.2至10mm的层上为1至60分钟的过程。

公开(公告)号：US4268440A

公开(公告)日：1981-05-19

申请号：US129827

申请日：1980-03-13

Applicant: Joachim Werther ,  Hugo Fuchs ,  Uwe Brand ,  Friedrich R. Faulhaber

Inventor： Joachim Werther ,  Hugo Fuchs ,  Uwe Brand ,  Friedrich R. Faulhaber

IPC: C07B61/00 ,  C07D201/04

CPC classification number: C07D201/04

Abstract: A process for the preparation of caprolactam wherein, in a first stage, cyclohexanone-oxime is vaporized, in the presence of inert gases, by bringing it into contact with a fluidized bed of inert solid particles at from 150.degree. to 250.degree. C., and the mixture of cyclohexanone-oxime vapor and inert gases is passed into a second stage, where the cyclohexanone-oxime is rearranged to caprolactam at from 230.degree. to 450.degree. C. over a supported catalyst, containing boron trioxide, in a fluidized bed.

Abstract translation: 一种制备己内酰胺的方法，其中在惰性气体存在下，在第一阶段将环己酮 - 肟气化，使其与150℃至250℃的惰性固体颗粒流化床接触， 并将环己酮 - 肟蒸气和惰性气体的混合物进入第二阶段，其中环己酮 - 肟在230℃至450℃下在含有三氧化硼的负载催化剂上在流化床中重排为己内酰胺。

公开(公告)号：US5560895A

公开(公告)日：1996-10-01

申请号：US511735

申请日：1995-08-07

Applicant: Franz-Josef Weiss ,  Hugo Fuchs ,  Gerald Neubauer ,  Heinz-Walter Schneider

Inventor： Franz-Josef Weiss ,  Hugo Fuchs ,  Gerald Neubauer ,  Heinz-Walter Schneider

IPC: B01J23/40 ,  B01J23/42 ,  B01J27/02 ,  B01J37/18 ,  B01J37/20 ,  C01B21/14 ,  C01C1/00

CPC classification number: B01J23/40 ,  B01J23/42 ,  B01J27/02 ,  B01J37/18 ,  B01J37/20 ,  C01B21/1418

Abstract: A process of use of hydrogenation catalyst, obtainable by carrying out essentially the following steps:(a) treatment of a platinum metal salt with finely divided sulfur followed by(b) reduction of the platinum metal salt to metallic platinum metal.

Abstract translation: 一种使用氢化催化剂的方法，其通过基本上进行以下步骤获得：（a）用细碎的硫处理铂金属盐，然后（b）将铂金​​属盐还原成金属铂金属。

公开(公告)号：US5359062A

公开(公告)日：1994-10-25

申请号：US54064

申请日：1993-04-29

Applicant: Hugo Fuchs ,  Gerald Neubauer ,  Josef Ritz ,  Claus-Ulrich Priester

Inventor： Hugo Fuchs ,  Gerald Neubauer ,  Josef Ritz ,  Claus-Ulrich Priester

IPC: C07D201/12 ,  C08G69/14

CPC classification number: C07D201/12

Abstract: Caprolactam is recovered from polycaprolactam by hydrolyric cleavage of polycaprolactam with from 5 to 50 parts by weight of water per part by weight of polycaprolactam at from 200.degree. to 350.degree. C. under superatmospheric pressure to give an aqueous solution or suspension which contains monomeric caprolactam and oligomers thereof and may contain polycaprolactam and subsequent isolation of monomeric caprolactam from the aqueous solution or suspension by distillation or extraction, by a process in which the hydrolyric cleavage is carried out in the presence of an alkali metal hydroxide at a pH of from 5 to 10.

Abstract translation: 己内酰胺通过在超大气压下在200-350℃下用5至50重量份的重量比的聚己内酰胺水解裂解聚己内酰胺从聚己内酰胺中回收，得到含有单体己内酰胺和 其低聚物并且可以含有聚己内酰胺并随后通过蒸馏或萃取从水溶液或悬浮液中分离单体己内酰胺，其中水解裂解在pH为5至10的碱金属氢氧化物存在下进行 。

公开(公告)号：US5236685A

公开(公告)日：1993-08-17

申请号：US919334

申请日：1992-07-27

Applicant: Hugo Fuchs ,  Franz-Josef Weiss ,  Josef Ritz

Inventor： Hugo Fuchs ,  Franz-Josef Weiss ,  Josef Ritz

IPC: B01J23/644 ,  B01J23/42 ,  B01J37/03 ,  C01B21/14

CPC classification number: C01B21/1418 ,  B01J23/42 ,  B01J37/031

Abstract: A process for the preparation of hydroxylammonium salts by the reduction of nitrogen oxide (NO) with hydrogen in dilute aqueous mineral acid in the presence of a suspended platinum catalyst which is partially poisoned with arsenic, at elevated temperature, wherein the catalyst used is one which has been produced by precipitation of metallic platinum from an aqueous solution on to a suspended support in the presence of an oxidic arsenic compound, by means of a reducing agent.

Abstract translation: 一种在悬浮铂催化剂存在下，在稀盐酸水溶液中，用氢还原氮氧化物（NO）制备羟基铵盐的方法，该悬浮铂催化剂在高温下被砷部分中毒，其中使用的催化剂是 通过还原剂将金属铂从水溶液中沉淀在悬浮载体上，在氧化砷化合物的存在下生成。

公开(公告)号：USRE33073E

公开(公告)日：1989-09-26

申请号：US171414

申请日：1988-03-21

Applicant: Hugo Fuchs ,  Uwe Brand ,  Helmut Buchaeckert

Inventor： Hugo Fuchs ,  Uwe Brand ,  Helmut Buchaeckert

IPC: C07D201/12

CPC classification number: C07D201/12

Abstract: Caprolactam is obtained by cleaving oligomers of caprolactam by a process in which the oligomers, in a liquid or solid state, are introduced into a fluidized alumina bed and cleaved at from 290.degree. to 400.degree. C. in the presence of steam, and, in addition to the amount of inert gas required to fluidize the alumina bed, from 0.1 to 3 times this amount of inert gas is introduced above the fluidized bed.