公开(公告)号：AU6600101A

公开(公告)日：2001-12-11

申请号：AU6600101

申请日：2001-05-21

Applicant: BASF AG

Inventor： ALLEN PETER MARK ,  GAHN CHRISTOPH ,  RIEKER CHRISTOPHER WILLIAM ,  SCHNEIDER HEINZ-WALTER ,  WAGNER ROBERT

IPC: B01D9/02 ,  B01D9/00

Abstract: An apparatus and a process for crystallizing substances from solutions or dispersions containing these substances, in a crystallizer containing a classifying zone ( 3 ), comprise a) an inner and an outer circulation system ( 1; 2 ), the inner circulation system ( 1 ) being present in the crystallizer, the inlet of the outer circulation system ( 2 ) being connected to the inner circulation system ( 1 ) via the classifying zone ( 3 ), the outer circulation system, being present outside the crystallizer, the outlet of the outer circulation system ( 2 ) being connected to the inner circulation system ( 1 ) of the crystallizer, and a means for dissolving crystals being arranged in the outer circulation system ( 2 ), before its outlet, b) an inflow ( 4 ) for solution and/or dispersion, which inflow is present on the crystallizer or on the outer circulation system, and c) an outflow ( 5 ) for dispersions, which outflow is arranged on the crystallizer or on the outer circulation system. The novel apparatus has the special feature that a line ( 8 ) connecting the outer and inner circulation systems ( 1; 2 ) to one another and intended for transporting (recycling) dispersion and/or a line ( 8 ) for transporting (recycling) dispersion are additionally present, in which both its entrance and its exit are connected to the inner circulation system ( 1 ).

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.

公开(公告)号：ES2133869T3

公开(公告)日：1999-09-16

申请号：ES96114467

申请日：1996-09-10

Applicant: BASF AG

Inventor： HAGEMEYER ALFRED DR ,  TRUBENBACH PETER DR ,  RIEKER CHRISTOPHER WILLIAM ,  WUNSCH MARTIN DR ,  WATZENBERGER OTTO DR

IPC: B01J23/08 ,  B01J23/10 ,  B01J23/18 ,  B01J23/46 ,  B01J23/70 ,  B01J27/224 ,  B01J27/24 ,  B01J35/10 ,  B01J37/08 ,  C01B7/04

Abstract: The novel feature in Cl2 prodn. by alternatingly (a) loading a catalyst with HCl at 300-420 (pref. 360-410) degrees C and then (b) regenerating the catalyst with an O2-contg. gas at 370-460 (pref. 380-420) degrees C is that the catalyst is a sintered shape made of (by wt.): (i) 2-30% oxides and/or chlorides of Cu, Fe, Ru, Ce, Bi, Ni, Co, Ga and/or Nd; (ii) 0-30% Li-, Na-, K- and/or Zn-chloride; and (iii) 98-40% ceramic-, silicate- and/or glass-carrier. This catalyst is prepd. using inorganic metal powder and/or an active component, together with a specified polymer (mixt.) and a dispersant.

公开(公告)号：DE59602232D1

公开(公告)日：1999-07-22

申请号：DE59602232

申请日：1996-09-10

Applicant: BASF AG

Inventor： HAGEMEYER ALFRED DR ,  TRUEBENBACH PETER DR ,  RIEKER CHRISTOPHER WILLIAM ,  WUENSCH MARTIN DR ,  WATZENBERGER OTTO DR

IPC: B01J23/08 ,  B01J23/10 ,  B01J23/18 ,  B01J23/46 ,  B01J23/70 ,  B01J27/224 ,  B01J27/24 ,  B01J35/10 ,  B01J37/08 ,  C01B7/04

Abstract: The novel feature in Cl2 prodn. by alternatingly (a) loading a catalyst with HCl at 300-420 (pref. 360-410) degrees C and then (b) regenerating the catalyst with an O2-contg. gas at 370-460 (pref. 380-420) degrees C is that the catalyst is a sintered shape made of (by wt.): (i) 2-30% oxides and/or chlorides of Cu, Fe, Ru, Ce, Bi, Ni, Co, Ga and/or Nd; (ii) 0-30% Li-, Na-, K- and/or Zn-chloride; and (iii) 98-40% ceramic-, silicate- and/or glass-carrier. This catalyst is prepd. using inorganic metal powder and/or an active component, together with a specified polymer (mixt.) and a dispersant.

公开(公告)号：MX9802151A

公开(公告)日：1998-08-30

申请号：MX9802151

申请日：1998-03-19

Applicant: BASF AG

Inventor： HEINEKE DANIEL ,  RIEKER CHRISTOPHER WILLIAM ,  OOSTVOGELS JOZEF ,  POSTELMANS DANY ,  SCHNEIDER HEINZ-WALTER ,  THOME ALFRED ,  ACHHAMMER GUENTHER

IPC: B01J23/42 ,  B01J23/96 ,  B01J37/16 ,  B01J38/48 ,  C01B21/14

Abstract: La presente invencion se refiere a la preparacion de un catalizador de hidrogenacion reduciendo platino en el estado de oxidacion +4 (PL (IV)), con un agente reductor selectivo en un medio acuoso ácido en presencia de un portador que contenga carbono, a platino en el estado de oxidacion +2 (PL (II)), después el envenenamiento del platino resultante con un agente reductor selectivo que contenga azufre y luego reduciendo el platino parcialmente envenenado en esta forma a platino metálico (PL (O)) y después el tratamiento en una forma conocida per se, en donde (a) el (PL (II)) es parcialmente envenenado con un agente reductor selectivo que contiene azufre, el agente reductor se utiliza en una cantidad que corresponde a 15-70% mol de la cantidad de un agente reductor selectivo que contiene azufre, que sería necesario para reducir Pt (IV)) a Pt (II), siempre y cuando la cantidad de Pt (IV) corresponda a la cantidad de Pt (II) utilizado y que se va a envenenar, y el Pt (II) parcialmente envenenado entonces se reduce con un formato de metal alcalino en Pt (0), o (b) El platino en un estado de oxidacion superior a +2 es parcialmente envenenado y se reduce posteriormente o en forma simultánea por medio de un formato de metal alcalino a Pt (0), y el catalizador de hidrogenacion, el uso del catalizador de hidrogenacion para la preparacion de sales de hidroxilamonio, los procesos para la preparacion de las sales de hidroxilamonio y un proceso para regenerar los catalizadores de hidrogenacion que contienen platino.