公开(公告)号：CA1145288A

公开(公告)日：1983-04-26

申请号：CA347043

申请日：1980-03-05

Applicant: BASF AG

Inventor： VOLKAMER KLAUS ,  BROELLOS KLAUS ,  LINDNER ALFRED ,  WAGNER ULRICH ,  WEITZ HANS-MARTIN ,  SCHNEIDER KLAUS-JUERGEN

IPC: C07C1/00 ,  C07C7/08 ,  C07C11/12 ,  C07C67/00

Abstract: A process for isolating a conjugated diolefin from a C4- or C5-hydrocarbon mixture containing the diolefin, by single-stage or multi-stage extractive distillation using a selective solvent, wherein the selective solvent is a solvent mixture which comprises: a) from 75 to 98 per cent by weight of an N-alkylsubstituted lower aliphatic acid amide or of an N-alkylsubstituted alicyclic acid amide having 5 ring members, boiling at from 140 to 260.degree.C, or butyrolactone or methoxypropionitrile and b) from 2 to 25 per cent by weight of acetonitrile.

公开(公告)号：AU3861778A

公开(公告)日：1980-02-07

申请号：AU3861778

申请日：1978-08-03

Applicant: BASF AG

Inventor： STOCKBURGER DIETER ,  VOLKAMER KLAUS ,  BENDER DETLEF ,  SCHNEIDER KLAUS-JUERGEN ,  SCHWENTKER HARALD ,  WAGNER ULRICH ,  WEITZ HANS-MARTIN

IPC: C07C7/08 ,  C07C11/16

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：CA981285A

公开(公告)日：1976-01-06

申请号：CA165661

申请日：1973-03-07

Applicant: BASF AG

Inventor： GOLSER LEOPOLD ,  SCHWARTZ ERICH ,  WEITZ HANS-MARTIN

IPC: C07C253/34 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07C253/14 ,  C07C255/04 ,  C07C255/09 ,  C07C255/33 ,  C07C255/45 ,  C07C255/51

Abstract: Recovery of pure 1,4-dicyanobutenes from 1,4-dicyanobutenes containing halogen, particularly chlorine or bromine, by treatment with a hexamethylenediamine or with dihexamethylenetriamine in the liquid phase and separation of the 1,4-dicyanobutenes from the reaction products of the added hexamethylenediamine with the halogen compound.

公开(公告)号：CA849995A

公开(公告)日：1970-08-25

申请号：CA849995D

Applicant: BASF AG

Inventor： WEITZ HANS-MARTIN ,  APPELT WALTER ,  GOLSER LEOPOLD

公开(公告)号：GB1108796A

公开(公告)日：1968-04-03

申请号：GB3430565

申请日：1965-08-11

Applicant: BASF AG

Inventor： KROEPER HUGO ,  WEITZ HANS-MARTIN ,  PLATZ ROLF ,  SCHOEMER KARL

IPC: C07C67/04 ,  C07C69/54

Abstract: Tertiary alkyl acrylates or methacrylates of the formula wherein R1 denotes an H atom or the -CH3 group and the R2 radicals which may be the same or different denote an alkyl group having from 1 to 4 C atoms, are prepared by reacting acrylic or methacrylic acid with a tertiary olefin of formula where R2 has the above meaning and R3 denotes an alkylidene group with 1 to 4 C atoms, in the presence of an active bleaching earth containing from 0.005 to 0.1 milliequivalents per gram of free titratable acid at atmospheric or superatmospheric pressure and at a temperature of from 0 DEG C. to 40 DEG C. A suitable bleaching earth comprises 50 to 70% of SiO2, 10 to 30% of Al2O3, 2 to 8% of Fe2O3, 1 to 9% of MgO and small amounts of the oxides of the other alkaline earth metals (all percentages are by weight). Examples describe the production of tertiary-butyl acrylate.

公开(公告)号：CA779361A

公开(公告)日：1968-02-27

申请号：CA779361D

Applicant: BASF AG

Inventor： WEITZ HANS-MARTIN ,  KROEPER HUGO ,  RITZ JOSEF ,  WAGNER ULRICH

公开(公告)号：FR1511538A

公开(公告)日：1968-01-26

申请号：FR95218

申请日：1967-02-16

Applicant: BASF AG

Inventor： WEITZ HANS-MARTIN ,  HAUSDOERFER BERTHOLD ,  KOOPMANN JUERGEN

IPC: B01J10/00 ,  C07C17/02

Abstract: 1,168,695. Mixing apparatus. BADISCHE ANILIN-& SODA-FABRIK A.G. 15 Feb., 1967 [16 Feb., 1966], No. 7234/67. Heading B1C. [Also in Division C2] An apparatus for mixing gases, e.g. bromine and butadiene, in such a way as to produce turbulent flow (the Reynold number being above 2300), comprises a loop-shaped reactor 4 into which the gases are continuously introduced via nozzles 3 and 7 at such a velocity that the impulse transmitted to the gas causes it to circulate. The gases may be produced by evaporating liquids stored in tanks 1 and 5. Any liquid condensing in the bottom of the reactor may be recirculated via pump 9, condenser 10 and nozzle 8; discharge is effected through tank 11.

公开(公告)号：FR1511386A

公开(公告)日：1968-01-26

申请号：FR94899

申请日：1967-02-14

Applicant: BASF AG

Inventor： HAARER ERICH ,  FUERST ERNST ,  WEITZ HANS-MARTIN

IPC: C10G21/20