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公开(公告)号：AU2003232761A1
公开(公告)日：2003-12-02
申请号：AU2003232761
申请日：2003-05-13
Applicant: BASF AG
Inventor： FIENE MARTIN , WEBER MARKUS , STROFER ECKHARD , HARTH KLAUS , WALSDORFF CHRISTIAN
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%.
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公开(公告)号：CA2474762A1
公开(公告)日：2003-08-28
申请号：CA2474762
申请日：2003-02-17
Applicant: BASF AG
Inventor： SCHINDLER GOETZ-PETER , HIBST HARTMUT , HARTH KLAUS , WALSDORFF CHRISTIAN
Abstract: The invention relates to a method for producing 4-vinylcyclohexene comprising the following steps: (A) a feed gas stream containing n-butane is prepared; (B) said feed gas stream containing n-butane is fed to at least one dehydrogenation zone, where it is dehydrogenated from n-butane to butadiene, whereby a butadiene, n-butane, optionally 1-butene and 2-butene and optionally water vapour and a product stream containing additional minor constituents are obtained; (C) the product stream from the dehydrogenation, optionally after separation of the water vapour and minor constituents, is fed to a dimerization zone, where the butadiene is catalytically dimerized to obtain 4- vinylcyclohexene, n-butane and optionally 1-butene, 2-butene and a product stream containing butadiene that has not been converted; (D) the 4- vinylcyclohexene from the dimerization product stream is separated and the n- butane and optionally 1-butene, 2-butene and the butadiene that has not been converted are returned to the dehydrogenation zone.
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公开(公告)号：DE10202647A1
公开(公告)日：2003-07-31
申请号：DE10202647
申请日：2002-01-23
Applicant: BASF AG
Inventor： WALSDORFF CHRISTIAN , BAIER MICHAEL , HARTH KLAUS , MALZ SUSANNE , RUPPEL WILHELM , SCHINDLER GOETZ-PETER
IPC: C07B35/04 , C07C2/68 , C07C5/333 , C07C15/46 , C07D233/04
Abstract: The invention relates to a method for producing alkenyl aromatic compounds. Said compounds are obtained by reacting alkyl aromatic compounds with a suitable catalyst in the presence of water vapour and natural gas or methane, at a temperature of between 400 and 800 DEG C and at a pressure of between 0.01 and 10 bar, whereby the molar ratio of water vapour to alkyl aromatic compound is from 6.9:1 to 1:1, or the molar ratio of methane to alkyl aromatic compound is from 0.1:1 to 8:1.
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公开(公告)号：DE10148575A1
公开(公告)日：2003-04-10
申请号：DE10148575
申请日：2001-10-01
Applicant: BASF AG
Inventor： SCHINDLER GOETZ-PETER , HARTH KLAUS , MUELLER ULRICH , WALSDORFF CHRISTIAN , HECHLER CLAUS
Abstract: The invention relates to a method for the production of an alkyl aromatic compound from an aromatic compound and an alkane. According to said method, (A) the alkane is dehydrogenized to form the corresponding alkene, whereby a product gas flow is obtained, containing the alkene, the unreacted alkane and additional constituents, (B) the alkane and alkene are together separated from the additional constituents in said product gas flow and (C) the aromatic compound is alkylated with the alkene to form said alkyl aromatic compound. Alkane dehydrogenation (A) is preferably executed autothermally.
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公开(公告)号：AU2003214061B2
公开(公告)日：2009-03-12
申请号：AU2003214061
申请日：2003-02-17
Applicant: BASF AG
Inventor： WALSDORFF CHRISTIAN , HIBST HARTMUT , SCHINDLER GOTZ-PETER , HARTH KLAUS
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.
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Patent Agency Ranking
公开(公告)号：DE502004004897D1
公开(公告)日：2007-10-18
申请号：DE502004004897
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.
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公开(公告)号：DK1379470T3
公开(公告)日：2007-10-08
申请号：DK02732550
申请日：2002-04-03
Applicant: BASF AG
Inventor： WALSDORFF CHRISTIAN , BAIER MICHAEL , KOERNER REINHARD , HARTH KLAUS , VORBERG GERALD , RUPPEL WILHELM
IPC: C01G49/02 , B01J23/745 , B01J23/78 , B01J23/88 , B01J23/881 , B01J23/887 , B01J35/02 , B01J37/08 , C01G49/06 , C07B61/00 , C07C5/333 , C07C5/42 , C07C15/46 , C09C1/24
Abstract: Iron oxides are upgraded by calcining at from 700 to 1200° C.
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公开(公告)号：BRPI0415423A
公开(公告)日：2006-12-05
申请号：BRPI0415423
申请日：2004-10-08
Applicant: BASF AG
Inventor： HARTH KLAUS , JOHANN THORSTEN , WALSDORFF CHRISTIAN , HOFSTADT OTTO , BAIER MICHAEL , WOLFGANG JUERGEN POEPEL
Abstract: Novel catalyst beds comprising a physical mixture of catalytically active and catalytically inactive shaped bodies, in which the catalytically inactive shaped bodies have rounded edges on the external rubbing surfaces.
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公开(公告)号：DE102004011543A1
公开(公告)日：2005-10-06
申请号：DE102004011543
申请日：2004-03-08
Applicant: BASF AG
Inventor： THORSTEN JOHANN , LOEBER OLIVER , BERGNER EIKE JOHANNES , EBEL KLAUS , HARTH KLAUS , WALSDORFF CHRISTIAN
Abstract: The present invention relates to a process for preparing optically active aldehydes or ketones which have from 3 to 25 carbon atoms and at least one racemizable stereocenter by catalytic dehydrogenation of the corresponding optically active primary or secondary alcohols in the gas phase in the presence of a catalyst.
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公开(公告)号：DE102004006610A1
公开(公告)日：2005-09-01
申请号：DE102004006610
申请日：2004-02-11
Applicant: BASF AG
Inventor： SEIDEMANN LOTHAR , SCHUBERT OLGA , SESING MARTIN , STROEFER ECKHARD , FIENE MARTIN , WALSDORFF CHRISTIAN , HARTH KLAUS
Abstract: The invention relates to a reactor and a process for preparing chlorine from hydrogen chloride by gas-phase oxidation by means of oxygen in the presence of a heterogeneous catalyst in a fluidized bed, with gas-permeable plates being located in the fluidized bed. The gas-permeable plates are connected in a thermally conductive manner to a heat exchanger located in the fluidized bed.
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