公开(公告)号：DE58909308D1

公开(公告)日：1995-07-27

申请号：DE58909308

申请日：1989-11-17

Applicant: HOECHST AG

Inventor： FLEMMING HANS-WOLFRAM DR ,  RUKWIED MANFRED DR ,  SCHMIDT MANFRED

IPC: C12P21/02 ,  C07K1/08 ,  C07K1/113 ,  C07K5/08 ,  C07K5/097

公开(公告)号：AT124053T

公开(公告)日：1995-07-15

申请号：AT89121277

申请日：1989-11-17

Applicant: HOECHST AG

Inventor： FLEMMING HANS-WOLFRAM DR ,  RUKWIED MANFRED DR ,  SCHMIDT MANFRED

IPC: C12P21/02 ,  C07K1/08 ,  C07K1/113 ,  C07K5/08 ,  C07K5/097

公开(公告)号：HU207031B

公开(公告)日：1993-03-01

申请号：HU653390

申请日：1990-10-24

Applicant: HOECHST AG

Inventor： MILTENBERGER KARLHEINZ ,  SCHMIDT MANFRED ,  PETZ KARL

IPC: B01J27/053 ,  B01J27/125 ,  B01J31/02 ,  C07B61/00 ,  C07C67/08 ,  C07C67/54 ,  C07C67/58 ,  C07C69/02 ,  C07C69/63

Abstract: In the esterification of aliphatic C2-C6-carboxylic acids with aliphatic C1-C4-alcohols, the ester formed is distilled off azeotropically together with the water of reaction. After being separated from the water of reaction in a separation cooler, the ester phase is freed from entrained acid by scrubbing with water, and water and alcohol are then removed by distilling off a small portion of the ester. In this manner, no salt-containing waste water is formed. The ester is obtained in very good yield and free of acid and alcohol.

公开(公告)号：AU626608B2

公开(公告)日：1992-08-06

申请号：AU4532889

申请日：1989-11-21

Applicant: HOECHST AG

Inventor： FLEMMING HANS-WOLFRAM ,  RUKWIED MANFRED ,  SCHMIDT MANFRED

IPC: C12P21/02 ,  C07K1/08 ,  C07K1/113 ,  C07K5/08 ,  C07K5/097 ,  C07K1/06

公开(公告)号：HU204758B

公开(公告)日：1992-02-28

申请号：HU711290

申请日：1990-11-13

Applicant: HOECHST AG

Inventor： FREYER WALTER ,  MILTENBERGER KARLHEINZ ,  SCHMIDT MANFRED

IPC: B01J31/02 ,  C07B61/00 ,  C07C51/62 ,  C07C53/48

公开(公告)号：NO167860C

公开(公告)日：1991-12-18

申请号：NO874426

申请日：1987-10-23

Applicant: HOECHST AG

Inventor： SCHMIDT MANFRED ,  RUPP WALTER ,  SCHEIDER GERHART ,  KOHN EVA MARIA

IPC: C07C309/04 ,  C07C309/09 ,  C09K8/584 ,  E21B43/22 ,  C07C309/11

Abstract: Styrylaryloxy ether sulfonates of the formula in which either R1 denotes styryl and simultaneously R2 and R3 are identical or different and denote hydrogen or styryl, or R1 and R2 are nonidentical and each denote methyl or styryl and simultaneously R3 denotes hydrogen or styryl, x denotes a number from 2 to 20, and M denotes an ammonium or alkali metal cation. These compounds are suitable as surfactant auxiliaries in oil recovery.

公开(公告)号：NO167860B

公开(公告)日：1991-09-09

申请号：NO874426

申请日：1987-10-23

Applicant: HOECHST AG

Inventor： SCHMIDT MANFRED ,  RUPP WALTER ,  SCHEIDER GERHART ,  KOHN EVA MARIA

IPC: C07C309/04 ,  C07C309/09 ,  C09K8/584 ,  E21B43/22 ,  C07C309/11

Abstract: Styrylaryloxy ether sulfonates of the formula in which either R1 denotes styryl and simultaneously R2 and R3 are identical or different and denote hydrogen or styryl, or R1 and R2 are nonidentical and each denote methyl or styryl and simultaneously R3 denotes hydrogen or styryl, x denotes a number from 2 to 20, and M denotes an ammonium or alkali metal cation. These compounds are suitable as surfactant auxiliaries in oil recovery.

公开(公告)号：HUT56338A

公开(公告)日：1991-08-28

申请号：HU653390

申请日：1990-10-24

Applicant: HOECHST AG

Inventor： MILTENBERGER KARLHEINZ ,  SCHMIDT MANFRED ,  PETZ KARL

IPC: B01J27/053 ,  B01J27/125 ,  B01J31/02 ,  C07B61/00 ,  C07C67/08 ,  C07C67/54 ,  C07C67/58 ,  C07C69/02 ,  C07C69/63

Abstract: In the esterification of aliphatic C2-C6-carboxylic acids with aliphatic C1-C4-alcohols, the ester formed is distilled off azeotropically together with the water of reaction. After being separated from the water of reaction in a separation cooler, the ester phase is freed from entrained acid by scrubbing with water, and water and alcohol are then removed by distilling off a small portion of the ester. In this manner, no salt-containing waste water is formed. The ester is obtained in very good yield and free of acid and alcohol.

公开(公告)号：DK584489D0

公开(公告)日：1989-11-21

申请号：DK584489

申请日：1989-11-21

Applicant: HOECHST AG

Inventor： FLEMMING HANS-WOLFRAM ,  RUKWIED MANFRED ,  SCHMIDT MANFRED

IPC: C12P21/02 ,  C07K1/08 ,  C07K1/113 ,  C07K5/08 ,  C07K5/097 ,  C07K1/06

公开(公告)号：RO68016A

公开(公告)日：1980-03-15

申请号：RO7052372

申请日：1972-04-12

Applicant: HOECHST AG

Inventor： DIERY HELMUT ,  KLINNER WOLFGANG ,  POTSCHKA WOLKER ,  SCHMIDT MANFRED

IPC: A01N25/30 ,  A01N25/04 ,  A01N53/02 ,  A01P13/00 ,  C09K23/00 ,  C09K23/08 ,  B01F17/00

Abstract: 1328933 Chlorinated paraffin sulphonic acids and salts FARBWERKE HOECHST AG 11 April 1972 [16 April 1971] 16602/72 Heading C2C [Also in Divisions A5 and C5] The calcium salt of chlorinated n-paraffin sulphonates is prepared by passing chlorine gas into a 60% aqueous paste of a sodium salt of a straight chain paraffin sulphonic acid having 13 to 18 C atoms in the alkyl chain, exposed to ultra-violet light produced by a mercury high vapor pressure immersion burner. 1À5 gram atoms of chlorine per mol of paraffin sulphonate is taken up during the reaction. The free chlorinated paraffin sulphonic acid is isolated and neutralized with calcium hydroxide. The corresponding magnesium and barium salts are obtained by neutralizing the free acid with magnesium and barium hydroxide respectively. The zinc salt is produced from the free acid by treatment with zinc carbonate and the aluminium salt by treatment with aluminium triisopropylate.