公开(公告)号：ES2044662T3

公开(公告)日：1994-01-01

申请号：ES91111373

申请日：1991-07-09

Applicant: BASF AG

Inventor： WEISS FRANZ-JOSEF DR ,  FUCHS HUGO DR ,  STEIGLEITER WERNER ,  HOELDERICH WOLFGANG DR ,  GUNS LUC ,  NEUBAUER GERALD DR ,  RITZ JOSEF DR

IPC: B01J21/18 ,  B01J23/42 ,  B01J27/02 ,  B01J35/02 ,  B01J35/10 ,  C01B21/14

Abstract: Platinum catalysts on a graphite support, having a platinum content from 0.01 to 5 % by weight, are characterised in that the graphite support has a grain surface area of from 1 to 30 m /g. … 183 to 600 mu m 15% by volume +/- 15% absolute 68.3 to 183 mu m 30% by volume +/- 20% 31.0 to 68.3 mu m 25% by volume +/- 20% 17.1 to 31.0 mu m 15% by volume +/- 10% 5.2 to 17.1 mu m 12% by volume +/- 10% 5.2 mu m 5% by volume +/- 5% …

公开(公告)号：DE59002558D1

公开(公告)日：1993-10-07

申请号：DE59002558

申请日：1990-12-13

Applicant: BASF AG

Inventor： FUCHS HUGO DR ,  NEUBAUER GERALD DR ,  RITZ JOSEF DR

IPC: C01B21/14 ,  C02F1/26 ,  C07C249/08 ,  C07C249/14 ,  C07C251/44

Abstract: Process for processing aqueous mother liquors containing hydrochloric acid, sulphuric acid and their hydroxylammonium and ammonium salts, characterised in that the mother liquors are brought into intimate contact with an excess of cyclohexanone based on the content of hydroxylammonium salts, while maintaining a pH of 3 to 5.5 by adding alkali metal hydroxide solutions, and the cyclohexanone-oxime-containing cyclohexanone phase is separated off and washed with water until it is virtually free from chloride.

公开(公告)号：DE59000835D1

公开(公告)日：1993-03-18

申请号：DE59000835

申请日：1990-05-07

Applicant: BASF AG

Inventor： FUCHS HUGO DR ,  NEUBAUER GERALD DR ,  RITZ JOSEF DR ,  WEISS FRANZ-JOSEF DR

IPC: C01B21/14

Abstract: The crystalline hydroxylammonium sulphate having a low ammonium sulphate content is prepared by bringing an aqueous solution containing 0.02 to 0.3 part by weight of ammonium sulphate and 0.02 to 0.2 part by weight of sulphuric acid per part by weight of hydroxylammonium sulphate into contact with basic ion exchangers to give a solution having a pH of 3.0 to 4.0, concentration of the aqueous hydroxylammonium sulphate solution thus obtained and crystallisation of at most 70 % by weight of the hydroxylammonium sulphate contained in the aqueous solution.

公开(公告)号：DE3642314A1

公开(公告)日：1988-06-23

申请号：DE3642314

申请日：1986-12-11

Applicant: BASF AG

Inventor： DECKER EMILE DE ,  OOSTVOGELS JOZEF ,  WAUWE GERARD VAN ,  NEUBAUER GERALD DR

IPC: C07D201/04 ,  C07D201/16

Abstract: Caprolactam is prepared in a process comprising (a) a Beckmann rearrangement of cyclohexanone oxime with oleum at from 70 DEG to 130 DEG C. in one or more rearrangement stages, and (b) aftertreatment of the reaction mixture obtained from the rearrangement stage in a delay zone at from 70 DEG to 110 DEG C. for from 10 to 600 minutes.

公开(公告)号：DE3464757D1

公开(公告)日：1987-08-20

申请号：DE3464757

申请日：1984-08-07

Applicant: BASF AG

Inventor： FRANK GERHARD DR ,  NEUBAUER GERALD DR

IPC: C07D295/02 ,  B01J23/74 ,  B01J23/745 ,  C07B61/00 ,  C07D207/06 ,  C07D211/02 ,  C07D211/12 ,  C07D223/04 ,  C07D295/023

Abstract: 5-Membered, 6-membered or 7-membered cyclic imines are prepared by hydrogenating a C2-C4-alkanedinitrile in the liquid phase, at from 180 DEG to 300 DEG C. and under superatmospheric pressure, in the presence of a catalyst, by a process in which an iron catalyst obtained by reduction of an iron oxide with hydrogen at

公开(公告)号：CH389589A

公开(公告)日：1965-03-31

申请号：CH1317660

申请日：1960-11-24

Applicant: BASF AG

Inventor： SEEFELDER MATTHIAS DR ,  NEUBAUER GERALD DR

IPC: C07C275/70 ,  C07D213/75

公开(公告)号：ES2054144T3

公开(公告)日：1994-08-01

申请号：ES90108544

申请日：1990-05-07

Applicant: BASF AG

Inventor： FUCHS HUGO DR ,  NEUBAUER GERALD DR ,  RITZ JOSEF DR ,  WEISS FRANZ-JOSEF DR

IPC: C01B21/14

Abstract: The crystalline hydroxylammonium sulphate having a low ammonium sulphate content is prepared by bringing an aqueous solution containing 0.02 to 0.3 part by weight of ammonium sulphate and 0.02 to 0.2 part by weight of sulphuric acid per part by weight of hydroxylammonium sulphate into contact with basic ion exchangers to give a solution having a pH of 3.0 to 4.0, concentration of the aqueous hydroxylammonium sulphate solution thus obtained and crystallisation of at most 70 % by weight of the hydroxylammonium sulphate contained in the aqueous solution.

公开(公告)号：DE4319179A1

公开(公告)日：1994-03-10

申请号：DE4319179

申请日：1993-06-09

Applicant: BASF AG

Inventor： FUCHS HUGO DR ,  NEUBAUER GERALD DR ,  PRIESTER CLAUS-ULRICH DR

IPC: C07D201/16 ,  C07D223/10

Abstract: In the purificn. of caprolactam (I) by oxidative treatment, mixts. of (I) and unsatd. lactams (II) are treated with (a gas mixt. contg.) O2 in alkaline medium. Treatment is carried out with air and in the presence of an alkali(ne earth) metal (hydr)oxide. USE/ADVANTAGE - (I) is used in polyamide-6 mfr. (II) are eliminated without causing disposal problems, e.g. by formation of MnO2 if KMnO4 is used as oxidant.

公开(公告)号：DE4104419A1

公开(公告)日：1992-08-20

申请号：DE4104419

申请日：1991-02-14

Applicant: BASF AG

Inventor： AGAR DAVID DR ,  BEVER PAUL-MICHAEL DR ,  SCHUSTER HANS H DR ,  NEUBAUER GERALD DR

IPC: B01J31/34 ,  B01J31/36 ,  B01J31/38 ,  C07B61/00 ,  C07C27/12 ,  C07C29/50 ,  C07C35/08 ,  C07C45/33 ,  C07C49/403 ,  C07C409/14 ,  C07D301/06 ,  C07D301/19 ,  C07D301/22 ,  C07D303/04

Abstract: Preparation of cyclohexene oxide as well as cyclohexanol and cyclohexanon, in which …… a) cyclohexane is oxidised with a gas containing molecular oxygen, with the formation of cyclohexyl hydroperoxide, cyclohexanol and cyclohexanone, … b) the mixture of a) and c) are separated together by distillation, … c) the cyclohexyl hydroperoxide fraction from b) is reacted with cyclohexene in the presence of transition metal compounds from groups 4 to 6, with the formation of cyclohexene oxide, and the product is separated into b). …

公开(公告)号：DE3942334A1

公开(公告)日：1991-06-27

申请号：DE3942334

申请日：1989-12-21

Applicant: BASF AG

Inventor： FUCHS HUGO DR ,  NEUBAUER GERALD DR ,  RITZ JOSEF DR

IPC: C01B21/14 ,  C02F1/26 ,  C07C249/08 ,  C07C249/14 ,  C07C251/44

Abstract: Process for processing aqueous mother liquors containing hydrochloric acid, sulphuric acid and their hydroxylammonium and ammonium salts, characterised in that the mother liquors are brought into intimate contact with an excess of cyclohexanone based on the content of hydroxylammonium salts, while maintaining a pH of 3 to 5.5 by adding alkali metal hydroxide solutions, and the cyclohexanone-oxime-containing cyclohexanone phase is separated off and washed with water until it is virtually free from chloride.