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公开(公告)号:FI931556A
公开(公告)日:1993-10-09
申请号:FI931556
申请日:1993-04-06
Applicant: HOECHST AG
Inventor: WIRTZ PETER , WUNDER FRIEDRICH , WOERNER KARL-FRED
Abstract: The invention relates to improved Pd/K/Au, Pd/K/Ba and Pd/K/Cd supported catalysts, the preparation thereof, and the use thereof for preparing vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. These catalysts are prepared by atomising a solution of the corresponding metal salts by means of ultrasound and then applying it in such limited amounts and within such a limited time to the support particles and commencing the drying thereof, that the catalytically active metal salts cannot penetrate the support particles as far as their core but only an outer part of greater or lesser size.
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公开(公告)号:CA2031429A1
公开(公告)日:1991-06-06
申请号:CA2031429
申请日:1990-12-04
Applicant: HOECHST AG
Inventor: WUNDER FRIEDRICH , WIRTZ PETER , ROSCHER GUENTER , EICHLER KLAUS
IPC: B01J23/52 , B01J23/58 , B01J23/60 , B01J23/66 , B01J35/10 , B01J37/00 , C07B61/00 , C07C67/05 , C07C67/055 , C07C69/15
Abstract: - - HOE 89/F 384 of the disclosure Process for the preparation of vinyl acetate The invention relates to a process for the preparation of vinyl acetate in the gas phase from ethylene, acetic acid and oxygen or oxygen-containing gases on a catalyst which contains palladium and/or its compounds and, if desired, additionally gold and/or gold compounds and which contains as activators alkali metal compounds and,if desired,additionally cadmium compounds on a support which is composed of SiO2 or an SiO2 Al2O3 mixture having a surface area of 50 - 250 m2/g and a pore volume of 0.4 - 1.2 ml/g and whose particles have a particle size of 4 to 9 mm, 5 to 20% of the pore volume of the support being formed of pores having radii of 200 to 3000 .ANG. and 50 to 90% of the pore volume being formed of pores having radii of 70 to 100 .ANG.. The support particles are compressed with the aid of an Li, Mg, Al, Zn or Mn salt of a C2-C20 carboxylic acid or a mixture of such salts as binder.
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公开(公告)号:AU5704990A
公开(公告)日:1990-12-20
申请号:AU5704990
申请日:1990-06-14
Applicant: HOECHST AG
Inventor: WUNDER FRIEDRICH , WIRTZ PETER , EICHLER KLAUS , ROSCHER GUNTER
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公开(公告)号:CA1254587A
公开(公告)日:1989-05-23
申请号:CA472451
申请日:1985-01-18
Applicant: HOECHST AG
Inventor: EBERTZ WOLFGANG , LEUPOLD ERNST I , SCHUETZ JOACHIM , BALTES HERBERT , LITTERER HEINZ , WUNDER FRIEDRICH
Abstract: of the disclosure: The invention relates to a process for the production of olefins from methanol in a tray-type reactor. The catalysts used are zeolite catalysts. Preferably, the flow through the catalysts is in the radial direction.
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公开(公告)号:AU551333B2
公开(公告)日:1986-04-24
申请号:AU8757982
申请日:1982-08-25
Applicant: HOECHST AG
Inventor: LITTERER HEINZ , WUNDER FRIEDRICH , LEUPOLD ERNST INGO , BALTES HERBERT
IPC: B01J21/08 , B01J29/00 , B01J29/50 , B01J29/65 , B01J29/80 , C01B33/157 , C01B33/158 , C01B39/02 , C01B39/04 , C01B39/06 , C01B39/44 , C07C1/00 , C07C1/20 , C07C67/00 , B01J29/06 , C01B33/152 , C01B33/26
Abstract: The present invention relates to aluminosilicates and silica gels having a low content of transition elements, to a process for their manufacture and to their use as a catalysts or catalyst supports. Said aluminosilicates or silica gels are prepared by treating them with a solution of complexing agents at a temperature of from 70 DEG to 150 DEG C. The manufacture of low-molecular-weight olefins from methanol is one possible application field of said aluminosilicates, used as a catalyst.
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公开(公告)号:CA1195676A
公开(公告)日:1985-10-22
申请号:CA427627
申请日:1983-05-06
Applicant: HOECHST AG
Inventor: BALTES HERBERT , LITTERER HEINZ , LEUPOLD ERNST I , WUNDER FRIEDRICH
IPC: B01J29/00 , B01J29/70 , B01J29/89 , C01B39/04 , C01B39/30 , C07C1/00 , C07C1/20 , C07C11/02 , C07C67/00 , B01J29/28 , C07C1/24
Abstract: of the disclosure: The invention relates to crystalline aluminosilicate zeolites, a process for their preparation and their use. To prepare these compounds, a mixture of silicon compounds, aluminum compounds, sodium compounds, potassium compounds, ammonium compounds and water in specified proportions is prepared, and this mixture is heated in a sealed vessel. The zeolites are used as catalysts in the preparation of C2-C4-olefins from methanol.
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公开(公告)号:ZA8500418B
公开(公告)日:1985-08-28
申请号:ZA8500418
申请日:1985-01-18
Applicant: HOECHST AG
Inventor: EBERTZ WOLFGANG , BALTES HERBERT , LEUPOLD ERNST INGO , LITTERER HEINZ , SCHUETZ JOACHIM , WUNDER FRIEDRICH
CPC classification number: C07C1/20 , C07C2529/40 , C07C11/02
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公开(公告)号:CA1173462A
公开(公告)日:1984-08-28
申请号:CA380721
申请日:1981-06-26
Applicant: HOECHST AG
Inventor: WUNDER FRIEDRICH , LEUPOLD ERNST I , LITTERER HEINZ
IPC: B01J21/06 , B01J21/16 , B01J29/06 , B01J29/50 , B01J29/80 , C07B61/00 , C07C1/00 , C07C1/20 , C07C11/02 , C07C67/00
Abstract: The invention relates to a process for the preparation of a lower olefin from methanol, dimethyl ether and mixtures thereof. The catalyst is composed of aluminum silicate containing hafnium and/or zirconium. These elements can be applied to the aluminum silicate by impregnation or partial ion exchange.
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公开(公告)号:ZA8308200B
公开(公告)日:1984-06-27
申请号:ZA8308200
申请日:1983-11-03
Applicant: HOECHST AG
Inventor: BALTES HERBERT , LITTERER HEINZ , LEUPOLD ERNST INGO , EBERTZ WOLFGANG , WUNDER FRIEDRICH
CPC classification number: C01B39/065 , B01J29/50 , B01J29/89 , C07C1/20 , C07C2529/89 , Y02P30/42 , C07C11/02
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公开(公告)号:AU1434683A
公开(公告)日:1983-11-10
申请号:AU1434683
申请日:1983-05-06
Applicant: HOECHST AG
Inventor: BALTES HERBERT , LITTERER HEINZ , LEUPOLD ERNST INGO , WUNDER FRIEDRICH
IPC: B01J29/00 , B01J29/70 , B01J29/89 , C01B39/04 , C01B39/30 , C07C1/00 , C07C1/20 , C07C11/02 , C07C67/00 , C01B33/28
Abstract: A method for making crystalline aluminosilicate ZSM-34 zeolites, useful as catalysts for making C2-C4-olefins from methanol, from a reaction mixture containing silicon, aluminum, sodium, potassium, and an organic template compound which is (i) a salt of an ammonium compound of di-, tri-, or tetra-ethanolamine or (ii) a mixture of at least one of diethanolamine and triethanolamine with certain lower alkanols, lower alkylene diols, or lower alkyl iodides, sulfates, or p-toluenesulfonates.
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