公开(公告)号：CA1117960A

公开(公告)日：1982-02-09

申请号：CA342076

申请日：1979-12-17

Applicant: BASF AG

Inventor： HARTIG JUERGEN ,  WEITZ HANS-MARTIN

IPC: B01J21/00 ,  C07B61/00 ,  C07D307/08

Abstract: O.Z. 0050/033,590 PREPARATION OF TETRAHYDROFURAN A process for the preparation of tetrahydrofuran by heating a carboxylic acid diester of butane-1,4-diol in the gas phase at above about 160.degree.C in the presence of an aluminum oxide catalyst which is obtained by drying, at 70 - l20.degree.C, an aluminum hydroxide gel which has been precipitated from an aqueous aluminum sulfate solution by means of a basic agent.

公开(公告)号：CA1100994A

公开(公告)日：1981-05-12

申请号：CA279077

申请日：1977-05-25

Applicant: BASF AG

Inventor： WEITZ HANS-MARTIN ,  HARTIG JUERGEN

IPC: C07C69/08 ,  C07C69/01 ,  C07C69/16

Abstract: O.Z 32,010 Alkylene glycol dicarboxylates are obtained by reacting carboxylic acid esters of monohydric or polyhydric aliphatic short-chain alcohols with an olefin and oxygen in the presence of a catalyst, a hydrolyzing agent and water.

公开(公告)号：IN170198B

公开(公告)日：1992-02-22

申请号：IN750MA1987

申请日：1987-10-19

Applicant: BASF AG

Inventor： NEUBAUER GERALD ,  SCHNABEL ROLF ,  HARTIG JUERGEN ,  RITZ JOSEF

IPC: C07C29/132 ,  C07C29/88 ,  C07C35/08

公开(公告)号：CA1061361A

公开(公告)日：1979-08-28

申请号：CA225888

申请日：1975-04-30

Applicant: BASF AG

Inventor： WEITZ HANS-MARTIN ,  HARTIG JUERGEN

IPC: C07C69/16 ,  B01J23/00 ,  B01J23/44 ,  B01J23/64 ,  B01J27/00 ,  B01J27/02 ,  B01J27/18 ,  C07B61/00 ,  C07C20060101 ,  C07C67/04 ,  C07C67/05 ,  C07C69/28

Abstract: A process for the manufacture of butenediol diacetates, especially of but-2-ene-1,4-diol diacetate, by reaction of butadiene with oxygen and acetic acid, in the gas phase, over a solid catalyst which contains palladium and at least one element of main group 5 or 6.

公开(公告)号：CA1055519A

公开(公告)日：1979-05-29

申请号：CA223200

申请日：1975-03-25

Applicant: BASF AG

Inventor： WEITZ HANS-MARTIN ,  HARTIG JUERGEN

IPC: C07C67/04 ,  B01J23/64 ,  B01J27/02 ,  C07C69/16 ,  C07C67/05

Abstract: But-2-ene-1,4-diol diacetate and/or but-1-ene-3,4-diol diacetate are manufactured from butadiene, oxygen and acetic acid using a platinum catalyst (particularly a platinum catalyst supported on active charcoal) which in addition contains a metal of main group 5 or 6 of the periodic table of elements.

公开(公告)号：CA1127660A

公开(公告)日：1982-07-13

申请号：CA332888

申请日：1979-07-31

Applicant: BASF AG

Inventor： PLATZ ROLF ,  WEITZ HANS-MARTIN ,  HARTIG JUERGEN

IPC: C07C67/05 ,  B01J27/00 ,  B01J27/02 ,  C07B61/00 ,  C07C67/04 ,  C07C69/16

Abstract: O.Z. 0050/033348 Carboxylic acid esters of vicinal glycols are prepared by oxidizing olefins with oxygen in the presence of carboxylic acids and of halogen and tellurium salts as catalysts, the reaction being carried out in vessels and apparatus consisting of, or lined with, zirconium or alloys of not less than 80% by weight of zirconium, the remainder being tin and/or hafnium.

公开(公告)号：CA1095074A

公开(公告)日：1981-02-03

申请号：CA274099

申请日：1977-03-16

Applicant: BASF AG

Inventor： WEITZ HANS M ,  PLATZ ROLF ,  HARTIG JUERGEN

IPC: C07C69/16 ,  C07C27/00 ,  C07C27/02 ,  C07C31/20 ,  C07C67/00 ,  C07D307/08

Abstract: O.Z. 31,903 In a process for the manufacture of butenediol-dicarboxylic acid esters by reacting butadiene with oxygen and a carboxylic acid in the presence of a noble metal catalyst containing platinum or palladium, the carboxylic acid is added to the reaction mixture in the form of the ester of the acid with a low molecular weight aliphatic alcohol such as methanol and the reaction is carried out under conditions under which the ester undergoes hydrolysis, or the hydrolysis is carried out before the main reaction. This enables the carboxylic acid obtained on further processing of the butenediol esters to be recycled.

公开(公告)号：CA1017756A

公开(公告)日：1977-09-20

申请号：CA200812

申请日：1974-05-24

Applicant: BASF AG

Inventor： WEITZ HANS-MARTIN ,  HARTIG JUERGEN

IPC: C07B61/00 ,  B01J31/00 ,  C07C67/00 ,  C07C201/00 ,  C07C205/50 ,  C07C205/51

公开(公告)号：CA1111064A

公开(公告)日：1981-10-20

申请号：CA283092

申请日：1977-07-19

Applicant: BASF AG

Inventor： WEITZ HANS-MARTIN ,  HARTIG JUERGEN ,  VOGEL LUDWIG ,  GRUBE HELMUTH

IPC: C07C69/16 ,  B01F5/00 ,  C07C20060101 ,  C07C67/05

Abstract: Diacetates of 1,2-glycols are manufactured by reacting acetic acid with an olefin and oxygen, using oxygen dissolved in the liquid phase of the reaction mixture and avoiding the presence of gaseous oxygen in the reaction space.

公开(公告)号：CA1101441A

公开(公告)日：1981-05-19

申请号：CA277647

申请日：1977-05-04

Applicant: BASF AG

Inventor： HARTIG JUERGEN ,  WEITZ HANS-MARTIN

IPC: C07C69/02 ,  B01J21/06 ,  B01J31/00 ,  B01J31/12 ,  B01J31/38 ,  C07B61/00 ,  C07C20060101 ,  C07C67/05 ,  C07C69/16 ,  C11D20060101

Abstract: O.Z. 31,984/32,147 1,2-Glycol esters are obtained particularly advantageously, by reacting an olefin with molecular oxygen and a carboxylic acid, if a reaction product of o-titanic acid with low molecular weight alcohols or carboxylic acids, eg. dititanium hexaacetate, is used as the catalyst.