-
公开(公告)号：DE3024610A1
公开(公告)日：1982-01-28
申请号：DE3024610
申请日：1980-06-28
Applicant: BASF AG
-
公开(公告)号：DE3207208A1
公开(公告)日：1983-09-08
申请号：DE3207208
申请日：1982-02-27
Applicant: BASF AG
Inventor： DANZ ECKEHARD DIPL CHEM DR , DUEMBGEN GERD DIPL CHEM DR , MIESEN ERNEST DIPL ING , SCHMIDT JOHANNES E DIPL CHEM D , WIRTH FRIEDRICH DIPL CHEM DR
IPC: C07D307/60 , C07C51/573 , C07D307/89
Abstract: A process for the continuous isolation of phthalic anhydride and maleic anhydride from the reaction gases obtained by catalytic oxidation of o-xylene or naphthalene with air, wherein the reaction gases are treated with a hydrocarbon of boiling range from 115 DEG to 175 DEG C. as the solvent in a column, and are then treated with an organic solvent of boiling range from 180 DEG to 290 DEG C. in a second column, the phthalic anhydride and maleic anhydride being isolated from the liquid bottom product of the first column.
-
3.发明专利
公开(公告)号：DE3140447A1
公开(公告)日：1983-04-21
申请号：DE3140447
申请日：1981-10-12
Applicant: BASF AG
Inventor： HEBGEN WERNER DIPL PHYS DR , DANZ ECKEHARD DIPL CHEM DR , KROME GERD DIPL CHEM DR , STAHNECKER ERHARD DIPL CHEM DR
IPC: C07C17/38 , C07C17/34 , C07C19/045 , C07C21/06
Abstract: Process for work-up of unconverted 1,2-dichloroethane in the preparation of vinyl chloride in which first the hydrogen chloride and then the vinyl chloride is separated from the gas mixture from the cracking furnace, and the remaining liquid stream is then let down, leading to separation into gaseous and liquid portions. The gaseous portions are treated with chlorine and then separated by distillation. The liquid portions are passed directly into the 1,2-dichloroethane separation stage.
-
4.发明专利
公开(公告)号：DE3147310A1
公开(公告)日：1983-06-01
申请号：DE3147310
申请日：1981-11-28
Applicant: BASF AG
Inventor： HEBGEN WERNER DIPL PHYS DR , DANZ ECKEHARD DIPL CHEM DR , BIRNBAUM EBERHARD ING GRAD , KROME GERD DIPL CHEM DR , STAHNECKER ERHARD DIPL CHEM DR , SCHUMACHER KLAUS DIPL ING
Abstract: Process for heat recovery from cleavage gases in the preparation of vinyl chloride by cleavage of 1,2-dichloroethane, wherein cleavage of the 1,2-dichloroethane is carried out at a pressure at which the cleavage gases leave the reactor under a pressure in the range from 5 to 30 bar, the cleavage gases are quenched by direct cooling and the resulting vapour is passed through heat exchangers.
-
Patent Agency Ranking
公开(公告)号：DE3130552A1
公开(公告)日：1983-02-17
申请号：DE3130552
申请日：1981-08-01
Applicant: BASF AG
Inventor： PYRLIK MANFRED DIPL CHEM DR , DANZ ECKEHARD DIPL CHEM DR , KROME GERD DIPL CHEM DR , STAHNECKER ERHARD DIPL CHEM DR
IPC: C07C17/156 , C07C19/045
Abstract: Process for preparing 1,2-dichloroethane by reacting ethylene, hydrogen chloride and oxygen in the presence of a supported catalyst which is present as a fixed bed in only one reaction zone, separating off 1,2-dichloroethane and water and the gas mixture leaving the reaction zone, and returning the off-gas into the reaction zone, with fresh ethylene, hydrogen chloride and oxygen being added to the off-gas.
-
公开(公告)号：DE3140892A1
公开(公告)日：1983-04-28
申请号：DE3140892
申请日：1981-10-15
Applicant: BASF AG
Inventor： HEBGEN WERNER DIPL PHYS DR , DANZ ECKEHARD DIPL CHEM DR , KROME GERD DIPL CHEM DR , STAHNECKER ERHARD DIPL CHEM DR
Abstract: A process for the preparation of vinyl chloride by vaporizing liquid 1,2-dichloroethane, thermally cracking the 1,2-dichloroethane and cooling the hot reaction mixture by means of cooled and condensed portions of the reaction mixture, wherein a defined amount of the 1,2-dichloroethane is taken off as liquid in or downstream of the vaporizer and mixed with a defined amount of the cooled liquid portion of the reaction mixture, the mixture is distilled and the constituents taken off the top of the distillation column are mixed with the liquid 1,2-dichloroethane upstream of the vaporizer while the constituents taken off the bottom of the distillation column are worked up by distillation.
-
公开(公告)号：DE3122181A1
公开(公告)日：1982-12-23
申请号：DE3122181
申请日：1981-06-04
Applicant: BASF AG
Inventor： DANZ ECKEHARD DIPL CHEM DR , KROME GERD DIPL CHEM DR
Abstract: Impurities are removed from vinyl chloride by passing it over finely divided calcium oxide.
-
公开(公告)号：DE3202378A1
公开(公告)日：1982-08-26
申请号：DE3202378
申请日：1982-01-26
Applicant: BASF AG
Inventor： DANZ ECKEHARD DIPL CHEM DR , KROME GERD DIPL CHEM DR
IPC: C07C17/02 , C07C17/25 , C07C19/045
Abstract: The invention relates to a process for the continuous preparation of 1,2-dichloroethane by reaction of ethylene with chlorine at elevated temperature in liquid phase in a stainless-steel reaction zone in the presence of finely divided iron powder as catalyst. The iron powder is metered into the reaction zone in such an amount as to obtain concentrations in the range from 50 to 2500 ppm, calculated as iron(III) chloride and based on 1,2-dichloroethane.
-
公开(公告)号：DE3046407A1
公开(公告)日：1982-07-15
申请号：DE3046407
申请日：1980-12-10
Applicant: BASF AG
Inventor： LAURER PETER RUDOLF DIPL CHEM , KROME GERD DIPL CHEM DR , CORDEMANS LUC DR , SEIFERT REINHARD DIPL CHEM DR , DANZ ECKEHARD DIPL CHEM DR
IPC: C07C17/156 , B01J23/78 , B01J27/10 , C07B61/00 , C07C17/00 , C07C17/15 , C07C17/154 , C07C19/045 , C07C67/00
Abstract: A supported catalyst containing copper and alkali metals, wherein the content of copper is from 1.0 to 12% by weight, based on total catalyst and expressed as metal, and the total content of the alkali metals potassium, lithium and sodium is from 0.3 to 9% by weight, based on total catalyst. The novel catalyst is useful for the preparation of 1,2-dichloroethane by oxychlorination of ethylene.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.02 seconds)
