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公开(公告)号：DE3211398A1
公开(公告)日：1983-09-29
申请号：DE3211398
申请日：1982-03-27
Applicant: BASF AG
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公开(公告)号：DE3210062A1
公开(公告)日：1983-09-29
申请号：DE3210062
申请日：1982-03-19
Applicant: BASF AG
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公开(公告)号：DE3041847A1
公开(公告)日：1982-06-09
申请号：DE3041847
申请日：1980-11-06
Applicant: BASF AG
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公开(公告)号：DE2909929A1
公开(公告)日：1980-09-25
申请号：DE2909929
申请日：1979-03-14
Applicant: BASF AG
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公开(公告)号：DE2831611A1
公开(公告)日：1980-02-07
申请号：DE2831611
申请日：1978-07-19
Applicant: BASF AG
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Patent Agency Ranking
公开(公告)号：DE2642533A1
公开(公告)日：1978-03-23
申请号：DE2642533
申请日：1976-09-22
Applicant: BASF AG
Inventor： BROECKER FRANZ JOSEF DIPL CHEM , DUEMBGEN GERD DIPL CHEM DR , GLIETENBERG HELMUT DIPL ING DR , MIESEN ERNEST DIPL ING , SCHWARZMANN MATTHIAS DIPL CHEM
IPC: C07D307/33 , C07D315/00 , C07D307/58 , C07D307/60 , C07C55/10
Abstract: gamma -Butyrolactone is manufactured by hydrogenating maleic anhydride in the presence of butyrolactone as the solvent. The hydrogenated reaction mixture, which contains butyrolactone, succinic anhydride and succinic acid, is fractionated in a thin film evaporator.
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公开(公告)号：DE2435716A1
公开(公告)日：1976-02-05
申请号：DE2435716
申请日：1974-07-25
Applicant: BASF AG
Inventor： STABENOW JOACHIM DIPL PHYS DR , MARVSI LASZLO DIPL CHEM DR , SCHWARZMANN MATTHIAS DIPL CHEM
IPC: B01J20/18 , B01J29/08 , C01B33/113 , C01B33/28
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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：DE3031557A1
公开(公告)日：1982-03-25
申请号：DE3031557
申请日：1980-08-21
Applicant: BASF AG
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