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公开(公告)号：CA2229416C
公开(公告)日：2007-05-29
申请号：CA2229416
申请日：1996-09-10
Applicant: BASF AG
Inventor： WAGNER ECKHART , OTTO BERNHARD , FETZER THOMAS , BURGER GERT , ROTH EMIL , SCHUMACHER VOLKER , RUPPEL WILHELM , WISTUBA HERMANN
Abstract: The invention concerns a method of removing nitrogen oxides from a gas flow. The gas flow is guided: (A) through a stage in which the nitrogen oxides, apart from N2O, are absorbed in an absorption agent, or the nitrogen oxides, apart from N2O, are reacted with an absorption agent at a pressure of between 1.5 and 20 bar, and (B) through a stage for reducing the N2O content, preferably using the pressure level prevailing in step (A). The invention further concerns a devi ce for carrying out this method and the use thereof.
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公开(公告)号：DK1124623T3
公开(公告)日：2006-11-27
申请号：DK99953874
申请日：1999-10-18
Applicant: BASF AG
Inventor： HESSE MICHAEL , HARTH KLAUS , BAIER MICHAEL , FETZER THOMAS , HOFSTADT OTTO , BUERGER GERT , SCHUMACHER VOLKER , WISTUBA HERMANN , OTTO BERNHARD
Abstract: A copper-containing catalyst of the composition of N2O contains a compound of the formula MxAl2O4, where M is Cu or a mixture of Cu and Zn and/or Mg and x is from 0.8 to 1.5. The novel catalyst is used in a process for the catalytic decomposition of pure N2O or N2O contained in gas mixtures, at elevated temperatures.
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公开(公告)号：UA54494C2
公开(公告)日：2003-03-17
申请号：UA99095051
申请日：1998-02-09
Applicant: BASF AG
Inventor： RAULS MATTHIAS , BAUMANN DIETER , WISTUBA HERMANN , OTTO BERNHARD
Abstract: Винахідстосуєтьсяспособуодержаннякристалізатівдикарбоновихкислотізрозчину, щоміститьпринаймніоднуорганічнудикарбоновукислоту, шляхомдодаваннядорозчинудопочаткукристалізаціїабопідчаскристалізаціїпринаймніодногоаніонногополіелектролітуз молекулярноюмасоюнеменше 2000.
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公开(公告)号：DE59805697D1
公开(公告)日：2002-10-31
申请号：DE59805697
申请日：1998-02-09
Applicant: BASF AG
Inventor： RAULS MATTHIAS , BAUMANN DIETER , WISTUBA HERMANN , OTTO BERNHARD
Abstract: Dicarboxylic acid crystals are prepared from a solution containing at least one organic dicarboxylic acid in a process in which at least one anionic polyelectrolyte having a molecular weight of at least 2000 is added to the solution before or during the crystallization.
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公开(公告)号：NO20011928A
公开(公告)日：2001-06-20
申请号：NO20011928
申请日：2001-04-19
Applicant: BASF AG
Inventor： BAIER MICHAEL , FETZER THOMAS , HOFSTADT OTTO , HESSE MICHAEL , BUERGER GERT , HARTH KLAUS , SCHUMACHER VOLKER , WISTUBA HERMANN , OTTO BERNHARD
CPC classification number: B01J23/005 , B01D53/8628 , B01D2257/402 , Y02C20/10
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Patent Agency Ranking
公开(公告)号：DE59603326D1
公开(公告)日：1999-11-18
申请号：DE59603326
申请日：1996-06-21
Applicant: BASF AG
Inventor： SCHERZER DIETRICH , BRUCHMANN BERND , MINGES ROLAND , KELLER PETER , VAN PEE WILLY , HEIDER WOLFGANG , POHL SIEGMUND , OTTO BERNHARD , JACOBS PAUL , SEYFERT WILFRIED
IPC: C07C263/10 , C07C263/20 , C07C265/12 , C07C265/14
Abstract: Prodn. of mixts. of diphenylmethanedi-isocyanates and polyphenyl-polymethylene-polyisocyanates (i.e. crude MDI) with a low iodine number and a low chlorine content comprises (a) reacting the corresp. mixts. of diamines and polyamines (MDA) with phosgene in presence of inert solvent(s) at elevated temp., (b) removing excess phosgene and solvent and (c) thermal treatment of the prod.. After phosgenation (a), an effective amt. of a mixt. (I) of water and mono- or polyhydric polyoxyalkylene alcohol(s) (II) is added to the reaction mixt. in the presence or absence of phosgene.
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公开(公告)号：IN182764B
公开(公告)日：1999-07-17
申请号：IN28MA1994
申请日：1994-01-19
Applicant: BASF AG
Inventor： FETZER THOMAS , BUECHELE WOLFGANG , WISTUBA HERMANN , OTTO BERNHARD , BUERGER GERT , PIJL PAUL
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公开(公告)号：ES2099591T3
公开(公告)日：1997-05-16
申请号：ES94905049
申请日：1994-01-13
Applicant: BASF AG
Inventor： FETZER THOMAS , BUECHELE WOLFGANG , IRGANG MATTHIAS , OTTO BERNHARD , WISTUBA HERMANN , BUERGER GERT
IPC: B01J23/00 , B01J23/80 , B01J37/08 , B01J23/76 , C07B61/00 , C07C29/153 , C07C29/154 , C07C29/156 , C07C31/04
Abstract: Catalysts prepared by combining M-Al2O4 where M is an element of Group Ib, VIIb or VIII of the Periodic Table of the Elements with tin, lead, an element of group IIa or IIb of the Periodic Table of the Elements as oxide or salt or in elemental form and calcining at 300-1300 DEG C. under 0.1-200 bar and the process for preparing them.
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公开(公告)号：DE59402378D1
公开(公告)日：1997-05-15
申请号：DE59402378
申请日：1994-01-13
Applicant: BASF AG
Inventor： FETZER THOMAS , BUECHELE WOLFGANG , WISTUBA HERMANN , OTTO BERNHARD , BUERGER GERT , PIJL PAUL
IPC: B01D53/56 , B01D53/86 , B01D53/94 , B01J21/04 , B01J23/00 , B01J23/72 , B01J23/76 , B01J23/78 , B01J23/80 , B01J35/10 , C07C51/487
Abstract: PCT No. PCT/EP94/00081 Sec. 371 Date Mar. 24, 1995 Sec. 102(e) Date Mar. 24, 1995 PCT Filed Jan. 13, 1994 PCT Pub. No. WO94/16798 PCT Pub. Date Aug. 4, 1994A process for the catalytic decomposition of dinitrogen monoxide in a gas stream by contacting the gas stream at temperatures of 200 DEG -900 DEG C. and pressures of 0.1 to 20 bar with a catalyst free of noble metals, the catalyst being prepared by combining a spinel CuAl2O3 with another spinel-forming metal component selected from the group consisting of tin, lead, zinc, magnesium, calcium, strontium and barium or mixtures thereof in elemental form or as an oxide or salt, and calcining at temperatures of 300 DEG -1300 DEG C. and under pressures of 0.1-200 bar in order to at least partially liberate the copper from the spinel by replacement with the other metal component.
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公开(公告)号：CZ9501003A3
公开(公告)日：1995-11-15
申请号：CZ100395
申请日：1994-01-13
Applicant: BASF AG
Inventor： FETZER THOMAS , BUECHELE WOLFGANG , IRGANG MATTHIAS , OTTO BERNHARD , WISTUBA HERMANN , BUERGER GERT
IPC: B01J23/76 , B01J23/00 , B01J23/80 , B01J37/08 , C07B61/00 , C07C29/153 , C07C29/154 , C07C29/156 , C07C31/04
CPC classification number: C07C29/154 , B01J23/002 , B01J23/005 , B01J37/08 , B01J2523/00 , Y02P20/52 , B01J2523/17 , B01J2523/31 , C07C31/04
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