公开(公告)号：AT461165T

公开(公告)日：2010-04-15

申请号：AT03763815

申请日：2003-07-10

Applicant: BASF SE

Inventor： SCHINDLER GOETZ-PETER ,  WALSDORFF CHRISTIAN ,  HARTH KLAUS ,  HIBST HARTMUT

IPC: B01J23/62 ,  C07C5/333 ,  C07B61/00 ,  C07C11/167

Abstract: The invention relates to a process for preparing butadiene from n-butane comprising the steps (A) providing an n-butane-containing feed gas stream, (B) feeding the n-butane-containing feed gas stream into a first dehydrogenation zone and nonoxidatively catalytically dehydrogenating n-butane to 1-butene, 2-butene and optionally butadiene to obtain a first product gas stream comprising n-butane, 1-butene and 2-butene, with or without butadiene and secondary components, (C) feeding the first product gas stream comprising n-butane, 1-butene and 2-butene, with or without butadiene and secondary components, into a second dehydrogenation zone and oxidatively dehydrogenating 1-butene and 2-butene to butadiene to give a second product gas stream comprising butadiene, n-butane and steam, with or without secondary components, (D) recovering butadiene from the second product gas stream.

公开(公告)号：DK1238702T3

公开(公告)日：2008-12-08

申请号：DK02004397

申请日：2002-03-06

Applicant: BASF SE

Inventor： HOELZLE MARKUS ,  HARTH KLAUS ,  SPRAGUE MICHAEL JOLYON ,  POEPEL WOLFGANG JUERGEN

IPC: B01J23/80 ,  B01J37/03 ,  C01B3/32

Abstract: A process for producing catalysts that contain pacified copper and zinc oxide and/or aluminum oxide, comprises: (i) Precipitating a mixture of catalyst precursors which are dissolved in a solvent or in a sludge, using precipitating agents that contain anions. (ii) The mixture is washed and dried to form a solid catalyst precursor in powder or granulate form. (iii) The precursors are calcined until the anion content is 0.1-2.5wt%. (iv) The calcined precursors are then shaped and reduced and pacified, to form the catalyst. (v) Precipitation tales place by the addition of carbonates, and in the precipitation of zinc and aluminum salts the Zn:Al ration is 3:1-1:3, and the alkali carbonate solution has a pH of 5-12 and a temperature of 20-100 degrees C. (vi) The precipitate is separated and washed to remove the alkali ions. (vii) After drying, calcining takes place at 250-800 degrees C.

公开(公告)号：AT524415T

公开(公告)日：2011-09-15

申请号：AT03752665

申请日：2003-05-13

Applicant: BASF SE

Inventor： WALSDORFF CHRISTIAN ,  FIENE MARTIN ,  WEBER MARKUS ,  STROEFER ECKHARD ,  HARTH KLAUS

IPC: C01B7/01 ,  C01B7/04

Abstract: The present invention relates to a process for the continuous preparation of chlorine by reaction of hydrogen chloride with oxygen in the presence of a heterogeneous catalyst, in which the conversion of hydrogen chloride in a single pass through the reactor is restricted to from 15 to 90%.

公开(公告)号：AT502913T

公开(公告)日：2011-04-15

申请号：AT06707886

申请日：2006-01-30

Applicant: BASF SE

Inventor： WECK ALEXANDER ,  ROESCH MARKUS ,  WINDECKER GUNTHER ,  HEYDRICH GUNNAR ,  PINKOS ROLF ,  SCHUBERT OLGA ,  HARTH KLAUS

IPC: C07C51/36 ,  B01J19/00 ,  C07C55/10 ,  C07D307/60

Abstract: The invention relates to a method of controlling a hydrogenation of a starting material in a hydrogenation reactor, in which the amount of hydrogen reacted in the hydrogenation is firstly determined, the ratio of the amount of hydrogen reacted to the amount of starting material fed in is then derived, this ratio is compared with a prescribed value and, finally, at least one process parameter is altered if the ratio of the amount of hydrogen reacted to the amount of starting material fed in deviates by a prescribed amount from the prescribed value.

公开(公告)号：AT426584T

公开(公告)日：2009-04-15

申请号：AT02801334

申请日：2002-10-14

Applicant: BASF SE

Inventor： WALSDORFF CHRISTIAN ,  SCHINDLER GITZ-PETER ,  MACHHAMMER OTTO ,  HARTH KLAUS

IPC: C07C5/48 ,  C07B61/00 ,  C07C5/327 ,  C07C5/333 ,  C07C11/02

Abstract: C 2 -C 30 -alkanes are dehydrogenated in a process in which (i) ethylbenzene is dehydrogenated to styrene in a first part process to give a hydrogen-containing offgas stream, and (ii) one or more C 2 -C 30 -alkanes are dehydrogenated in the presence of a heterogeneous catalyst in one or more reaction zones in a second part process to give the corresponding olefins, with a hydrogen-containing gas stream being mixed into the reaction gas mixture of the dehydrogenation in at least one reaction zone, wherein at least part of the hydrogen-containing offgas stream obtained in the dehydrogenation of ethylbenzene is mixed into the reaction gas mixture of the alkane dehydrogenation.

公开(公告)号：DE50311049D1

公开(公告)日：2009-02-26

申请号：DE50311049

申请日：2003-02-17

Applicant: BASF SE

Inventor： WALSDORFF CHRISTIAN ,  SCHINDLER GOETZ-PETER ,  HARTH KLAUS ,  HIBST HARTMUT

IPC: C07C2/46 ,  C07C2/52 ,  C07B61/00 ,  C07C5/367 ,  C07C13/20 ,  C07C15/073 ,  C07C15/46

Abstract: The invention relates to a process for preparing 4-vinylcyclohexene, which comprises the steps (A) providing an n-butane-containing feed gas stream, (B) feeding the n-butane-containing feed gas stream into at least one dehydrogenation zone and dehydrogenating n-butane to butadiene to give a product stream comprising butadiene, n-butane, possibly 1-butene and 2-butene and possibly water vapor and other secondary constituents, (C) feeding the product stream from dehydrogenation, if appropriate after separating off water vapor and secondary constituents, into a dimerization zone and catalytically dimerizing butadiene to give a product stream comprising 4-vinylcyclohexene, n-butane and possibly 1-butene, 2-butene and unreacted butadiene, and (D) separating off 4-vinylcyclohexene from the product stream from the dimerization and recirculating n-butane and possibly 1-butene, 2-butene and unreacted butadiene to the dehydrogenation zone.

公开(公告)号：DE50212621D1

公开(公告)日：2008-09-25

申请号：DE50212621

申请日：2002-03-06

Applicant: BASF SE

Inventor： HOELZLE MARKUS ,  SPRAGUE MICHAEL JOLYON ,  HARTH KLAUS ,  POEPEL WOLFGANG JUERGEN

IPC: B01J23/80 ,  B01J37/03 ,  C01B3/32

Abstract: A process for producing catalysts that contain pacified copper and zinc oxide and/or aluminum oxide, comprises: (i) Precipitating a mixture of catalyst precursors which are dissolved in a solvent or in a sludge, using precipitating agents that contain anions. (ii) The mixture is washed and dried to form a solid catalyst precursor in powder or granulate form. (iii) The precursors are calcined until the anion content is 0.1-2.5wt%. (iv) The calcined precursors are then shaped and reduced and pacified, to form the catalyst. (v) Precipitation tales place by the addition of carbonates, and in the precipitation of zinc and aluminum salts the Zn:Al ration is 3:1-1:3, and the alkali carbonate solution has a pH of 5-12 and a temperature of 20-100 degrees C. (vi) The precipitate is separated and washed to remove the alkali ions. (vii) After drying, calcining takes place at 250-800 degrees C.