METHOD OF PRODUCING ORGANIC HYDROGEN PEROXIDE SOLUTIONS

    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

    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.

    Process for preparing phosphonomethyl glycine

    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

    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.

    METHOD FOR THE PRODUCTION OF PHOSPHONOMETHYLGLYCIN

    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

    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.

    65.
    发明专利
    未知

    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

    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.

    Method for the production of phosphonomethylglycin

    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

    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.

    70.
    发明专利
    未知

    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

    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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