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公开(公告)号:CA2443203A1
公开(公告)日:2002-10-24
申请号:CA2443203
申请日:2002-04-11
Applicant: BASF AG
Inventor: MASSONNE KLEMENS , BUTZ THOMAS , FISCHER MARTIN
IPC: C01B15/029
Abstract: The invention relates to a continuous method for producing a hydrogen peroxi de solution in a medium that comprises a water-miscible organic solvent, by reacting hydrogen and oxygen in the presence of an inert gas, the gas flow being circulated and the hydrogen and oxygen only being supplemented in the form of pure gases as they are consumed. The invention further relates to th e use of the solution so produced in the epoxidation of olefins.
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公开(公告)号:DE10118460A1
公开(公告)日:2002-10-17
申请号:DE10118460
申请日:2001-04-12
Applicant: BASF AG
Inventor: BUTZ THOMAS , FISCHER MARTIN , MASSONNE KLEMENS
IPC: C01B15/029 , C07D301/12
Abstract: Continuous production of a solution of hydrogen peroxide in a water-miscible organic solvent comprises passing the solvent and a gas comprising hydrogen (H2), oxygen (O2) and inert gas (with an inert gas:O2 volume ratio of at least 2.5:1) through a reaction zone containing a noble metal catalyst; withdrawing a H2- and O2-depleted gas stream and recycling it to the reaction zone after adding pure H2 and O2; and withdrawing a liquid stream comprising the hydrogen peroxide solution.
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公开(公告)号:CZ2002495A3
公开(公告)日:2002-08-14
申请号:CZ2002495
申请日:2000-08-10
Applicant: BASF AG
Inventor: AUST NICOLA CHRISTIANE , BUTZ THOMAS , FISCHER MARTIN
Abstract: The present invention relates to a process for the preparation of phosphonomethylglycine in which N-phosphonomethyliminodiacetic acid N-oxide is brought into contact with a catalytically active quantity of at least one catalyst, selected from amongst a thionyl halide, ammonium dithionite or an alkali metal dithionite, a dialkyl sulfite, sulfur dichloride, sulfur dioxide and sulfurous acid, in a reaction chamber by metering the N-phosphonomethyliminodiacetic acid N-oxide into the reaction chamber in such a way that always at least 50% of the N-oxide metered into the reaction chamber are converted.
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公开(公告)号:SK1992002A3
公开(公告)日:2002-07-02
申请号:SK1992002
申请日:2000-08-10
Applicant: BASF AG
Inventor: AUST NICOLA CHRISTIANE , BUTZ THOMAS , FISCHER MARTIN
Abstract: The present invention relates to a process for the preparation of phosphonomethylglycine in which N-phosphonomethyliminodiacetic acid N-oxide is brought into contact with a catalytically active quantity of at least one catalyst, selected from amongst a thionyl halide, ammonium dithionite or an alkali metal dithionite, a dialkyl sulfite, sulfur dichloride, sulfur dioxide and sulfurous acid, in a reaction chamber by metering the N-phosphonomethyliminodiacetic acid N-oxide into the reaction chamber in such a way that always at least 50% of the N-oxide metered into the reaction chamber are converted.
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公开(公告)号:MXPA01009978A
公开(公告)日:2002-02-28
申请号:MXPA01009978
申请日:2000-04-06
Applicant: BASF AG
Inventor: QUAISER STEFAN , STAMMER ACHIM , HOLZLE MARKUS , FISCHER MARTIN
IPC: C01B15/026 , B01J23/40 , B01J23/44 , B01J23/46 , B01J23/62 , B01J35/10 , B01J37/02 , B01J37/03 , B01J37/16 , C01B15/029 , C07C29/145
Abstract: The invention relates to a method for producing catalysts by immersion coating a metallic support with at least one platinum metal. An aqueous medium which comprises at least one platinum metal complex, at least one reduction agent and at least one complexer and which has a pH value of more than 4 is brought into contact with the metallic support in order to deposit the platinum metal, the platinum metal being deposited in the form of discreet, immobilised particles. The invention also relates to the catalysts obtained using this method and to their use for producing hydrogen peroxide and for hydrogenating organic compounds.
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公开(公告)号:AU6837300A
公开(公告)日:2001-03-13
申请号:AU6837300
申请日:2000-08-10
Applicant: BASF AG
Inventor: AUST NICOLA CHRISTIANE , BUTZ THOMAS , FISCHER MARTIN
Abstract: The present invention relates to a process for the preparation of phosphonomethylglycine, wherein N-phosphonomethyliminodiacetic acid N-oxide is brought into contact with a catalytically effective amount of thiocyanic acid or a salt thereof.
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公开(公告)号:AU6441000A
公开(公告)日:2001-03-13
申请号:AU6441000
申请日:2000-08-10
Applicant: BASF AG
Inventor: AUST NICOLA CHRISTIANE , BUTZ THOMAS , FISCHER MARTIN
Abstract: The present invention relates to a process for the preparation of phosphonomethylglycine in which N-phosphonomethyliminodiacetic acid N-oxide is brought into contact with a catalytically active quantity of at least one catalyst, selected from amongst a thionyl halide, ammonium dithionite or an alkali metal dithionite, a dialkyl sulfite, sulfur dichloride, sulfur dioxide and sulfurous acid, in a reaction chamber by metering the N-phosphonomethyliminodiacetic acid N-oxide into the reaction chamber in such a way that always at least 50% of the N-oxide metered into the reaction chamber are converted.
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公开(公告)号:AU4544500A
公开(公告)日:2000-10-23
申请号:AU4544500
申请日:2000-04-06
Applicant: BASF AG
Inventor: FISCHER MARTIN , HOLZLE MARKUS , QUAISER STEFAN , STAMMER ACHIM
IPC: C01B15/026 , B01J23/40 , B01J23/44 , B01J23/46 , B01J23/62 , B01J35/10 , B01J37/02 , B01J37/03 , B01J37/16 , C01B15/029 , C07C29/145 , C23C18/44
Abstract: The invention relates to a method for producing catalysts by immersion coating a metallic support with at least one platinum metal. An aqueous medium which comprises at least one platinum metal complex, at least one reduction agent and at least one complexer and which has a pH value of more than 4 is brought into contact with the metallic support in order to deposit the platinum metal, the platinum metal being deposited in the form of discreet, immobilised particles. The invention also relates to the catalysts obtained using this method and to their use for producing hydrogen peroxide and for hydrogenating organic compounds.
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公开(公告)号:AU725799B2
公开(公告)日:2000-10-19
申请号:AU5119198
申请日:1997-10-15
Applicant: BASF AG
Inventor: FISCHER MARTIN , KAIBEL GERD , STAMMER ACHIM , FLICK KLEMENS , QUAISER STEFAN , HARDER WOLFGANG , MASSONNE KLEMENS
IPC: B01J8/04 , B01J19/24 , B01J19/26 , C01B15/029
Abstract: A process for preparing a hydrogen peroxide solution having a hydrogen peroxide content of not less than 2.5% by weight, which comprises continuously reacting hydrogen and oxygen in an aqueous, alcoholic or aqueous/alcoholic reaction medium in the presence of a catalyst containing palladium.
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公开(公告)号:ES2146908T3
公开(公告)日:2000-08-16
申请号:ES96934716
申请日:1996-10-17
Applicant: BASF AG
Inventor: FISCHER MARTIN
IPC: B01J31/02 , B01J31/40 , B01J38/00 , C07D307/28
Abstract: PCT No. PCT/EP96/04504 Sec. 371 Date Apr. 21, 1998 Sec. 102(e) Date Apr. 21, 1998 PCT Filed Oct. 17, 1996 PCT Pub. No. WO97/15392 PCT Pub. Date May 1, 1997An improved process is provided for the recovery of catalyst components from oligomeric impurities which are formed during the industrial preparation of 2,5-dihydrofuran by the catalytic isomerization of vinyl oxirane followed by an essential separation of the oligomeric by-products which otherwise cause deactivation of the catalyst. The catalyst components consist essentially of (a) an onium iodide and (b) a Lewis acid selected from the group consisting of the chloride, bromide or iodide of the metals zinc, tin, cobalt and bismuth, preferably zinc, where the catalyst optionally includes a donor ligand. This separation is carried out by the steps of extracting the initial product mixture containing zinc, cobalt or bismuth halides as Lewis acids with hydrocarbons or chlorinated hydrocarbons containing from 5 to 14 carbon atoms in order to form two separate phases on standing, separating off the extraction solvent phase which contains the dissolved catalyst and then recovering the separated catalyst by distilling off the extraction solvent. The recovery of tin iodide requires the presence of a special onium halide component such as phosphazenium or phosphazanium halides, preferably the iodides, having a high molecular weight and especially those which contain from 16 to 72 carbon atoms while remaining soluble in the extracting agent.
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