公开(公告)号：AT372299T

公开(公告)日：2007-09-15

申请号：AT04763900

申请日：2004-08-06

Applicant: BASF AG

Inventor： WALSDORFF CHRISTIAN ,  FIENE MARTIN ,  SESING MARTIN ,  METELKINA OLGA ,  SEIDEMANN LOTHAR ,  STROEFER ECKHARD ,  HARTH KLAUS

IPC: C01B7/04

Abstract: The invention relates to a process for preparing chlorine by catalytic gas-phase oxidation of hydrogen chloride, which comprises the steps: a) providing a feed gas stream I comprising hydrogen chloride and a feed gas stream II comprising oxygen; b) in a first oxidation stage, feeding the feed gas stream I, the feed gas stream II, if desired a recycle stream la comprising hydrogen chloride and if desired an oxygen-containing recycle stream IIa into a first oxidation zone and bringing them into contact with a first oxidation catalyst so that a first partial amount of the hydrogen chloride is oxidized to chlorine and a gas stream III comprising chlorine, unreacted oxygen, unreacted hydrogen chloride and water vapor is obtained; c) in a second oxidation stage, feeding the gas stream III into a second oxidation zone and bringing it into contact with at least one further oxidation catalyst so that a second partial amount of the hydrogen chloride is oxidized to chlorine and a product gas stream IV comprising chlorine, unreacted oxygen, unreacted hydrogen chloride and water vapor is obtained; d) isolating chloride, if desired the recycle stream Ia and if desired the recycle stream IIa from the product gas stream IV, wherein the first oxidization catalyst in the first oxidation zone is present in a fluidized bed and the further oxidation catalyst or catalysts in the second oxidation zone is/are present in a fixed bed.

公开(公告)号：DE102005008612A1

公开(公告)日：2006-08-24

申请号：DE102005008612

申请日：2005-02-23

Applicant: BASF AG

Inventor： SESING MARTIN ,  DIEFENBACHER ARMIN ,  VOS HARTWIG ,  SCHUBERT OLGA ,  SEIDEMANN LOTHAR ,  KARCHES MARTIN ,  GRASLER THOMAS ,  STROEFER ECKHARD

IPC: C01B7/04

Abstract: The stream containing hydrogen chloride (I) and the stream containing oxygen (II) are fed into an oxidation zone. The hydrogen chloride is oxidized to chlorine. A gas and a water-free gas streams are remained through the cooling and drying. The stream reversal contains chlorine-rich, chlorine, oxygen and carbon dioxide, and the liquefaction is carried out by compression and cooling (6). The gas and the water-free gas streams contain chlorine, water, oxygen, carbon dioxide and inert gases. The Gas/liquid stream is separated into a gas stream containing chlorine, oxygen, carbon dioxide and inert gases and into a fluid stream containing chlorine, oxygen and carbon dioxide. The gas stream is fed into a membrane separation unit (9) and separated into the stream reversal and chlorine-poor, chlorine, oxygen and carbon dioxide containing gas by membrane separation. The liquid stream is separated into a chlorine stream and a stream containing oxygen and carbon dioxide by distillation. The chlorine-poor and the gas stream are led into the oxidation zone, and the chlorine poor is removed.

公开(公告)号：DE10361519A1

公开(公告)日：2005-07-28

申请号：DE10361519

申请日：2003-12-23

Applicant: BASF AG

Inventor： OLBERT GERHARD ,  METELKINA OLGA ,  SESING MARTIN ,  STROEFER ECKHARD ,  FIENE MARTIN

IPC: B01J8/02 ,  B01J8/04 ,  B01J19/24 ,  C01B7/04 ,  C07C17/02 ,  F28D9/00

Abstract: A process for preparing chlorine by gas-phase oxidation of hydrogen chloride by means of a gas stream comprising molecular oxygen in the presence of a fixed-bed catalyst, wherein the process is carried out in a reactor ( 1 ) having heat-exchange plates ( 2 ) which are arranged in the longitudinal direction of the reactor ( 1 ) and have a spacing between them and through which a heat transfer medium flows, inlet and outlet facilities ( 3, 4 ) for the heat transfer medium to the heat-exchange plates ( 2 ) and also gaps ( 5 ) between the heat-exchange plates ( 2 ) in which the fixed-bed catalyst is present and into which the hydrogen chloride and the gas stream comprising molecular oxygen are passed, is described.

公开(公告)号：SG175661A1

公开(公告)日：2011-11-28

申请号：SG2011076726

申请日：2005-03-21

Applicant: BASF AG

Inventor： SOHN MARTIN ,  STROEFER ECKHARD ,  SCHUBERT OLGA ,  GRASSLER THOMAS ,  FIENE MARTIN ,  SESING MARTIN ,  SEIDEMANN LOTHAR ,  WALSDORFF CHRISTIAN

IPC: B01J8/18 ,  B01J8/24 ,  C01B7/04

Abstract: FLUIDIZED BED METHOD AND REACTOR FOR CARRYING OUT EXOTHERMIC CHEMICAL EQUILIBRIUM REACTIONSAbstractThe invention relates to a process for carrying out exothermic chemical equilib rium reactions in a fluidized-bed reactor, wherein there is a temperature distribu tion in the fluidized bed of the fluidized-bed reactor and the temperature differencebetween the lowest temperature and the highest temperature is at least 10 K. The invention further relates to a fluidized-bed reactor for carrying out chemical reac tions In a fluidized bed (5), wherein at least one heat exchanger (12, 28) is located in the fluidized bed (5) to control the temperature distribution.(Figure 1)

公开(公告)号：DE102005040286A1

公开(公告)日：2007-03-01

申请号：DE102005040286

申请日：2005-08-25

Applicant: BASF AG

Inventor： SCHUBERT OLGA ,  SESING MARTIN ,  SEIDEMANN LOTHAR ,  KARCHES MARTIN ,  GRASLER THOMAS ,  SOHN MARTIN

IPC: B01J21/04 ,  B01J23/00

Abstract: An oxidation process employing a mechanically stable catalyst of an active metal or combination of active metals supported on aluminum oxide, which is predominantly alpha-aluminum oxide, is provided. The active metal or metals is optionally one or a mixture of ruthenium, copper, gold, an alkaline earth metal, an alkali metal, palladium, platinum, osmium, iridium, silver, and rhenium. The process is applicable to the oxidation of hydrogen chloride to chlorine in a Deacon process.

公开(公告)号：DE102004044592A1

公开(公告)日：2006-03-30

申请号：DE102004044592

申请日：2004-09-13

Applicant: BASF AG

Inventor： WOELFERT ANDREAS ,  KNOESCHE CARSTEN ,  PALLASCH HANS-JUERGEN ,  SESING MARTIN ,  STROEFER ECKHARD ,  POLKA HANS-MARTIN ,  HEILIG MANFRED

IPC: B01D53/46 ,  B01D53/14 ,  B01D53/68 ,  C01B7/01 ,  C01B32/80

Abstract: The invention relates to a process for separating hydrogen chloride and phosgene, which comprises bringing a mixture of hydrogen chloride and phosgene into contact with an ionic liquid in which at least part of the hydrogen chloride is dissolved in a step a) and then separating off the hydrogen chloride dissolved in the ionic liquid in a step b).

公开(公告)号：DE102004014677A1

公开(公告)日：2005-10-13

申请号：DE102004014677

申请日：2004-03-25

Applicant: BASF AG

Inventor： WALSDORFF CHRISTIAN ,  SEIDEMANN LOTHAR ,  SESING MARTIN ,  FIENE MARTIN ,  GRASLER THOMAS ,  METELKINA OLGA ,  STROEFER ECKHARD ,  SOHN MARTIN

IPC: B01J8/18 ,  B01J8/24 ,  C01B7/04 ,  B01J23/46

Abstract: The invention relates to a process for carrying out exothermic chemical equilibrium reactions in a fluidized-bed reactor, wherein there is a temperature distribution in the fluidized bed of the fluidized-bed reactor and the temperature difference between the lowest temperature and the highest temperature is at least 10 K. The invention further relates to a fluidized-bed reactor for carrying out chemical reactions in a fluidized bed ( 5 ), wherein at least one heat exchanger ( 12, 28 ) is located in the fluidized bed ( 5 ) to control the temperature distribution.