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公开(公告)号:US3758498A
公开(公告)日:1973-09-11
申请号:US3758498D
申请日:1971-03-22
Applicant: HOECHST AG
IPC: C07D207/44 , C07D207/448 , C08F22/36 , C23F11/14 , C07D27/18
CPC classification number: C07D207/448 , C07D207/44 , C08F22/36 , C23F11/145
Abstract: PREPARATION OF N-SUBSTITUTED MALEIMIDES BY HEATING THE CORRESPONDING N-SUBSTITUTED MALEAMIC ACIDS OR MONO-AMMONIUM MALEIC ACID SALTS IN THE PRESENCE OF STREAM TO A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 100* TO 400*C.
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公开(公告)号:BR8003412A
公开(公告)日:1980-12-30
申请号:BR8003412
申请日:1980-05-30
Applicant: HOECHST AG
IPC: B01J23/00 , B01J23/72 , B01J23/74 , B01J27/10 , B01J27/122 , B01J27/128 , C07B61/00 , C07C17/00 , C07C17/02 , C07C17/156 , C07C19/045 , C07C67/00 , C07C17/15
Abstract: A process for the manufacture of 1,2-dichloroethane from ethylene by reaction with hydrogen chloride and inert gases containing oxygen, and also by reaction with chlorine, is described. The two chlorination reactions are carried out successively at 180 DEG to 360 DEG C. and under a pressure of 0.09 to 1.1 MPa in a common reaction space containing fluidized catalyst particles. A stoichiometric excess of ethylene is employed for the first chlorination reaction. The heat formed in the reaction space is removed by indirect cooling. The process is simple in terms of apparatus and permits a better re-use of the total heat of reaction of the chlorination of ethylene.
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公开(公告)号:YU143380A
公开(公告)日:1982-10-31
申请号:YU143380
申请日:1980-05-28
Applicant: HOECHST AG
IPC: B01J23/00 , B01J23/72 , B01J23/74 , B01J27/10 , B01J27/122 , B01J27/128 , C07B61/00 , C07C17/00 , C07C17/02 , C07C17/156 , C07C19/045 , C07C67/00 , C07C17/15 , C07C19/02
Abstract: A process for the manufacture of 1,2-dichloroethane from ethylene by reaction with hydrogen chloride and inert gases containing oxygen, and also by reaction with chlorine, is described. The two chlorination reactions are carried out successively at 180 DEG to 360 DEG C. and under a pressure of 0.09 to 1.1 MPa in a common reaction space containing fluidized catalyst particles. A stoichiometric excess of ethylene is employed for the first chlorination reaction. The heat formed in the reaction space is removed by indirect cooling. The process is simple in terms of apparatus and permits a better re-use of the total heat of reaction of the chlorination of ethylene.
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公开(公告)号:SE7509509A
公开(公告)日:1976-03-01
申请号:SE7509509
申请日:1975-08-27
Applicant: HOECHST AG
Inventor: KUHN W
CPC classification number: G03F7/0751
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