公开(公告)号：DE59900546D1

公开(公告)日：2002-01-24

申请号：DE59900546

申请日：1999-03-19

Applicant: BASF AG

Inventor： HEBGEN WERNER ,  RIEKER WILLIAM ,  MEISSNER RUPRECHT

IPC: B01J23/78 ,  B01J23/83 ,  B01J27/122 ,  B01J37/00 ,  C07B61/00 ,  C07C17/156 ,  C07C19/045

Abstract: A process for preparing 1,2-dichloroethane by reacting about 2 mols of ethylene, about 4 mols of hydrogen chloride and about 1 mol of oxygen in the presence of a fixed bed of supported catalyst based on copper(II) chloride in only one reaction zone at a pressure of from 2 to 10 bar and at from 220 to 280° C., separating off 1,2-dichloroethane and water from the reaction mixture emerging from the reaction zone and passing most of the exhaust gas back into the reaction zone, where, prior to entry into the reaction zone, the exhaust gas is mixed with ethylene, hydrogen chloride and oxygen, and the oxygen content of the mixture does not exceed 7% by volume, and where the ethylene content of the gas mixture entering into the reaction zone is regulated so that the exhaust gas comprises less than 20% by volume of ethylene, where the supported catalyst used is obtained by tableting a mixture of pseudoboehmite and gamma-Al2O3 in a weight ratio from 4:1 to 1:4, if desired with addition of tableting auxiliaries, loading this support with the active components by saturating with a CuCl2/KCl solution so that the copper content is from 1 to 15% by weight and the potassium content is from 0.1 to 8% by weight, based in each case on the total weight of the catalyst, and then drying the catalyst at from 60 to 400° C.

公开(公告)号：AU3597399A

公开(公告)日：1999-10-18

申请号：AU3597399

申请日：1999-03-19

Applicant: BASF AG

Inventor： HEBGEN WERNER ,  RIEKER CHRISTOPHER WILLIAM ,  MEISSNER RUPRECHT

IPC: B01J23/78 ,  B01J23/83 ,  B01J27/122 ,  B01J37/00 ,  C07B61/00 ,  C07C17/156 ,  C07C19/045

Abstract: A process for preparing 1,2-dichloroethane by reacting about 2 mols of ethylene, about 4 mols of hydrogen chloride and about 1 mol of oxygen in the presence of a fixed bed of supported catalyst based on copper(II) chloride in only one reaction zone at a pressure of from 2 to 10 bar and at from 220 to 280° C., separating off 1,2-dichloroethane and water from the reaction mixture emerging from the reaction zone and passing most of the exhaust gas back into the reaction zone, where, prior to entry into the reaction zone, the exhaust gas is mixed with ethylene, hydrogen chloride and oxygen, and the oxygen content of the mixture does not exceed 7% by volume, and where the ethylene content of the gas mixture entering into the reaction zone is regulated so that the exhaust gas comprises less than 20% by volume of ethylene, where the supported catalyst used is obtained by tableting a mixture of pseudoboehmite and gamma-Al2O3 in a weight ratio from 4:1 to 1:4, if desired with addition of tableting auxiliaries, loading this support with the active components by saturating with a CuCl2/KCl solution so that the copper content is from 1 to 15% by weight and the potassium content is from 0.1 to 8% by weight, based in each case on the total weight of the catalyst, and then drying the catalyst at from 60 to 400° C.

公开(公告)号：DE19812468A1

公开(公告)日：1999-09-30

申请号：DE19812468

申请日：1998-03-23

Applicant: BASF AG

Inventor： HEBGEN WERNER ,  RIEKER CHRISTOPHER WILLIAM ,  MEISNER RUPRECHT

IPC: B01J23/78 ,  B01J23/83 ,  B01J27/122 ,  B01J37/00 ,  C07B61/00 ,  C07C17/156 ,  C07C19/045 ,  C07C17/02

Abstract: The invention relates to a method for producing a supported catalyst used for the production of 1,2-dichloroethane by tabletting a mixture of pseudo-boehmite and gamma alumina at a weight ratio of between 4:1 to 1:4, possibly with the addition of tabletting aids. Said support is then charged with the active components by impregnation with a CuCl2/KCl solution such that the copper content is between 1 and 15 weight % and the potassium content is between 0.1 and 8 weight %, in each case in relation to the total mass of the catalyst. The catalyst is then dried at between 60 and 400 DEG C. In addition to the elements copper and potassium the catalyst can be charged with elements from the group comprising Li, Na, Cs, Mg, Ca and the rare-earth metals.