公开(公告)号：DE3462684D1

公开(公告)日：1987-04-23

申请号：DE3462684

申请日：1984-12-13

Applicant: HOECHST AG

Inventor： STUHLER HERBERT DR

IPC: B01J23/00 ,  B01J27/00 ,  B01J31/00 ,  C07B61/00 ,  C07C41/00 ,  C07C41/09 ,  C07C43/13 ,  C07C67/00 ,  C08G65/00 ,  C08G65/34

公开(公告)号：ES2087223T3

公开(公告)日：1996-07-16

申请号：ES91121361

申请日：1991-12-12

Applicant: HOECHST AG

Inventor： FRUTH ANTON ,  STRAUSS JULIUS ,  STUHLER HERBERT DR

IPC: B01J25/02 ,  C07B61/00 ,  C07C209/48 ,  C07C209/70 ,  C07C211/03

Abstract: According to the new process, the hydrogenation of unsaturated fatty acid nitriles or mixtures of unsaturated and saturated fatty acid nitriles is carried out in the liquid phase in the presence of nickel catalysts or cobalt catalysts. In a first reaction step the fatty acid nitrile, in the presence of ammonia, is treated with hydrogenation hydrogen until all the nitrile groups are hydrogenated to predominantly primary amino groups. After the ammonia content in the reaction mixture obtained from the first step has been adjusted to a value of at most 0.1 mol of ammonia per mole of fatty acid nitrile used, a second reaction step is used to hydrogenate the double bonds present to saturated bonds. The desired primary and saturated fatty amine is obtained in a very high yield and has an iodine number of at most 5.

公开(公告)号：DE3573131D1

公开(公告)日：1989-10-26

申请号：DE3573131

申请日：1985-05-29

Applicant: HOECHST AG

Inventor： BILLENSTEIN SIEGFRIED DR ,  KUKLA BRUNO ,  STUHLER HERBERT DR

IPC: C11C3/10 ,  C07C67/03 ,  C07C69/003 ,  C11C3/04

Abstract: A process for the preparation of fatty acid esters of short-chain primary and secondary alcohols with 1 to 5 carbon atoms by transesterification of glycerides with the said short-chain alcohols is described. In this process, a stream of the gaseous alcohol is passed through the liquid glyceride at temperatures of at least 210 DEG C. and the product mixture of gylcerol and fatty acid alkyl ester is discharged from the reaction zone with this stream and is then subjected to phase separation.

公开(公告)号：DE3365169D1

公开(公告)日：1986-09-11

申请号：DE3365169

申请日：1983-11-02

Applicant: HOECHST AG

Inventor： STUHLER HERBERT DR

IPC: C07C69/33 ,  C07C67/08 ,  C07C69/52 ,  C07C69/533

Abstract: A process is described for preparing carboxylic acid esters of hexitols by rapidly heating the hexitol and carboxylic acid to 210 DEG to 250 DEG C. in the presence of alkaline catalysts, continuing the esterification reaction at this temperature, while simultaneously driving off the water formed, until an acid number of 2 to 15 has been reached, and then rapidly cooling down to at least 145 DEG C. This process produces hexitol carboxylates which are essentially free of anhydro compounds and have good color quality. The hexitol carboxylates are surface-active substances, in particular high-grade emulsifiers and lubricants.

公开(公告)号：DE3264555D1

公开(公告)日：1985-08-08

申请号：DE3264555

申请日：1982-07-16

Applicant: HOECHST AG

Inventor： STUHLER HERBERT DR ,  KREMPL ENGELBERT

IPC: C07C69/003 ,  C07C67/56 ,  C07C69/30 ,  C07C69/33 ,  C07C69/52 ,  C07C69/58 ,  C11C3/02

Abstract: A process for the purification of esters, which contain residues of dissolved and/or undissolved alcohols, is described. The purification of the esters containing alcohols is achieved by treating the esters, in the liquid state, with an effective amount of water-soluble polysaccharide derivatives in the solid state.

公开(公告)号：DE3362517D1

公开(公告)日：1986-04-17

申请号：DE3362517

申请日：1983-05-14

Applicant: HOECHST AG

Inventor： STUHLER HERBERT DR ,  MAY ADOLF DR ,  BUCKING HANS-WALTER DR ,  SCHREIBER MANFRED

IPC: D06M13/46 ,  C11D1/44 ,  C11D1/62 ,  C11D1/72 ,  C11D1/74 ,  C11D1/835 ,  C11D3/00 ,  C11D3/37 ,  D06M13/02 ,  D06M13/148 ,  D06M13/165 ,  D06M13/188 ,  D06M13/224 ,  D06M13/322 ,  D06M13/372 ,  D06M13/463 ,  D06M13/47 ,  D06M13/473 ,  D06M15/53

公开(公告)号：MY8500553A

公开(公告)日：1985-12-31

申请号：MY8500553

申请日：1985-12-30

Applicant: HOECHST AG

Inventor： BILLENSTEIN SIEGFRIED DR ,  KUKKLA BRUNO ,  STUHLER HERBERT DR

IPC: C07C29/00 ,  B01J31/00 ,  B01J31/02 ,  B01J31/04 ,  C07B61/00 ,  C07C20060101 ,  C07C27/00 ,  C07C31/22 ,  C07C67/00 ,  C07C253/00 ,  C07C253/22 ,  C07C255/03 ,  C07C255/06 ,  C07C255/11 ,  C07C255/15 ,  C11B3/00 ,  C11C20060101 ,  C11C1/00 ,  C07C121/14 ,  C07C120/08

Abstract: Glycerol and aliphatic nitriles are simultaneously produced by treating liquid glycerides with gaseous ammonia at a rate of at least 200 liters of ammonia per kilogram of glyceride per hour at temperatures of from 220 DEG to 300 DEG C. in the presence of metal salts of carboxylic or sulfonic acids as catalysts and subjecting the product mixture to a phase separation into a nitrile phase and a glycerol/water phase. Preferred starting materials are vegetable and animal fats and oils.

公开(公告)号：DE3107008A1

公开(公告)日：1982-09-09

申请号：DE3107008

申请日：1981-02-25

Applicant: HOECHST AG

Inventor： KLEBER ROLF DR ,  STUHLER HERBERT DR

IPC: D06M13/02 ,  D06M13/148 ,  D06M13/165 ,  D06M13/175 ,  D06M15/333 ,  D06M15/08 ,  D06M15/10 ,  D06M13/18

Abstract: A sizing agent consisting substantially of polyvinyl alcohol and polyglycerol.

公开(公告)号：DE2860715D1

公开(公告)日：1981-08-27

申请号：DE2860715

申请日：1978-08-16

Applicant: HOECHST AG

Inventor： BILLENSTEIN SIEGFRIED DR ,  KUKLA BRUNO ,  STUHLER HERBERT DR

IPC: C07C29/00 ,  B01J31/00 ,  B01J31/02 ,  B01J31/04 ,  C07B61/00 ,  C07C20060101 ,  C07C27/00 ,  C07C31/22 ,  C07C67/00 ,  C07C253/00 ,  C07C253/22 ,  C07C255/03 ,  C07C255/06 ,  C07C255/11 ,  C07C255/15 ,  C11B3/00 ,  C11C20060101 ,  C11C1/00 ,  C07C120/08 ,  C07C121/14

Abstract: Glycerol and aliphatic nitriles are simultaneously produced by treating liquid glycerides with gaseous ammonia at a rate of at least 200 liters of ammonia per kilogram of glyceride per hour at temperatures of from 220 DEG to 300 DEG C. in the presence of metal salts of carboxylic or sulfonic acids as catalysts and subjecting the product mixture to a phase separation into a nitrile phase and a glycerol/water phase. Preferred starting materials are vegetable and animal fats and oils.