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公开(公告)号:DE3135618A1
公开(公告)日:1983-03-17
申请号:DE3135618
申请日:1981-09-09
Applicant: BASF AG
Inventor: HOELDERICH WOLFGANG DIPL CHEM , MROSS WOLF-DIETER DIPL CHEM DR , SCHWARZMANN MATTHIAS DIPL CHEM
Abstract: A process for the preparation of lower olefins from methanol or dimethyl ether by catalytic conversion at from 300 DEG to 550 DEG C. in two stages over borosilicate zeolites, wherein C2-C4-olefins and C1-C4-paraffins are removed after the first reaction stage, the C5+ hydrocarbons are passed to the second reaction stage, the aromatics are removed from the reaction product of the second stage and the remaining reaction products are recycled. The advantage of this process is an improvement in the yield of olefins.
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公开(公告)号:DE3132024A1
公开(公告)日:1983-03-03
申请号:DE3132024
申请日:1981-08-13
Applicant: BASF AG
Abstract: The process for the preparation of olefins by converting methanol and/or dimethyl ether in the presence of a zeolite catalyst is improved by treating the catalyst with hydrogen fluoride. Aluminosilicate zeolites and borosilicate zeolites, especially those of the pentasil type, are chiefly used.
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公开(公告)号:DE3140895A1
公开(公告)日:1983-04-28
申请号:DE3140895
申请日:1981-10-15
Applicant: BASF AG
Inventor: HOELDERICH WOLFGANG DIPL CHEM , MROSS WOLF DIETER DIPL CHEM DR , SCHWARZMANN MATTHIAS DIPL CHEM
IPC: B01J29/04 , B01J29/86 , C01B33/20 , C01B33/36 , C01B35/00 , C01B35/10 , C01B39/36 , C07C1/20 , B01J21/06 , C07C1/24
Abstract: Novel crystalline ZBH borosilicate zeolites of the pentasil type are prepared by hydrothermal crystallization of silicon dioxide and boric acid in the presence of alkali metal salts, at from 80 DEG to 140 DEG C. in an ethereal or aqueous-ethereal mixture.
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公开(公告)号:DE3136984A1
公开(公告)日:1983-03-31
申请号:DE3136984
申请日:1981-09-17
Applicant: BASF AG
Inventor: HOELDERICH WOLFGANG DIPL CHEM , MROSS WOLF DIETER DIPL CHEM DR , SCHWARZMANN MATTHIAS DIPL CHEM
Abstract: A process for the preparation of olefins from methanol and/or dimethyl ether by conversion in the presence of a zeolite catalyst, in particular a borosilicate zeolite, at elevated temperature, with the addition of a small amount of an electron donor.
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公开(公告)号:DE3210756A1
公开(公告)日:1983-09-29
申请号:DE3210756
申请日:1982-03-24
Applicant: BASF AG
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公开(公告)号:DE3143045A1
公开(公告)日:1983-05-05
申请号:DE3143045
申请日:1981-10-30
Applicant: BASF AG
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