101.
    发明专利
    未知

    公开(公告)号:DE50104409D1

    公开(公告)日:2004-12-09

    申请号:DE50104409

    申请日:2001-07-05

    Applicant: BASF AG

    Abstract: A process for the preparation of propylene oxide in which (i) propene is reacted with hydrogen peroxide in the presence of methanol to give propylene oxide, giving a mixture (Gi) comprising propylene oxide, methanol, water and unreacted hydrogen peroxide, (ii) a mixture (Gii) comprising methanol, water and hydrogen peroxide is separated off from the mixture (Gi), giving a mixture (Ga) comprising propylene oxide, and (iii) water is separated off from the mixture (Gii), giving a mixture (Giii) comprising methanol and methyl formate.

    102.
    发明专利
    未知

    公开(公告)号:DE10317520A1

    公开(公告)日:2004-11-04

    申请号:DE10317520

    申请日:2003-04-16

    Applicant: BASF AG

    Abstract: Process for preparing an alkene oxide, which comprises at least the steps (i), (ii) and (v): (i) providing a stream S1 comprising compressed, liquid alkene; (ii) depressurizing at least part of the stream S1 with absorption of heat and with at least partial vaporization of the liquid alkene; (v) reacting the alkene obtained in (ii) with a hydroperoxide in the presence of at least one solvent and at least one catalyst to give a mixture comprising alkene oxide and the solvent or solvents.

    PREPARATION OF PROPYLENE OXIDE
    103.
    发明专利

    公开(公告)号:CA2522481A1

    公开(公告)日:2004-10-28

    申请号:CA2522481

    申请日:2004-04-16

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing propylene oxide, comprising steps (iii) and (iv): (iii) separating propylene oxide by distillation out from a mixture (G1) containing propylene oxide and at least one solvent whil e using a distillation column during which a bottom flow and a vapor flow essentially containing propylene oxide are obtained; (iv) compressing the vapor flow obtained according to step (iii) by means of at least one compressor while obtaining a compressed vapor.

    Method for producing an epoxide.
    104.
    发明专利

    公开(公告)号:ZA200306056B

    公开(公告)日:2004-09-28

    申请号:ZA200306056

    申请日:2003-08-06

    Applicant: BASF AG

    Abstract: An organic compound having at least one C-C double bond is epoxidized by means of hydrogen peroxide in the presence of at least one catalytically active compound and at least one solvent, wherein a product mixture comprising alpha-hydroperoxyalcohols is reduced using at least one reducing agent. The process advantageously comprises at least the following steps: (i) reacting an organic compound having at least one C-C double bond with hydrogen peroxide in the presence of at least one catalytically active compound and at least one solvent to give a product mixture P1 comprising alpha-hydroperoxyalcohols; (ii) separating an epoxide formed in the reaction in step (i) and the unreacted organic compound having at least one C-C double bond from P1 or P1' to give a product mixture P2 or P2', where P2 comprises the alpha-hydroperoxyalcohols formed as by-product in the reaction in step (i) and P2' is largely free of alpha-hydroperoxyalcohols; (iii) treating P1 and/or P2 with at least one reducing agent so that the alpha-hydroperoxyalcohols are converted into corresponding glycols to give a product mixture P1' or P3.

    IMPROVED CATALYST FOR EPOXIDATION REACTIONS

    公开(公告)号:CA2499055A1

    公开(公告)日:2004-03-25

    申请号:CA2499055

    申请日:2003-09-15

    Applicant: BASF AG

    Abstract: The present invention relates to the manufacture of solid materials or shape d bodies containing at least one zeolite and being at least partly crystalline . Furthermore, the present invention relates to the solid materials or shaped bodies as such and to the use of these materials for reactions of compounds having at least one C-C double bond with at least one hydroperoxide. Specifically, the present invention relates to a process for the manufacture of a solid material containing at least one zeolite and being at least partl y crystalline, wherein the synthesis of the said solid material involves at least one partial step of contacting at least one transition metal oxide source with at least one epoxide or hydrolysate thereof prior to or during t he at least partial crystallization of said solid material.

    PREPARATION OF PROPYLENE OXIDE USING AN AFTER-REACTOR HAVINGA PLURALITYOF FEED POINTS AND/OR OUTLETS

    公开(公告)号:CA2494739A1

    公开(公告)日:2004-02-12

    申请号:CA2494739

    申请日:2003-07-28

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing oxirans by reacting an organ ic compound with a hydroperoxide in the presence of a solvent and a catalyst. Said method comprises at least the steps (i) to (iii): (i) reaction of the hydroperoxide with the organic compound to obtain a product mixture containi ng the reacted organic compound and non-reacted hydroperoxide, (ii) isolation o f the non-reacted hydroperoxide from the mixture resulting from stage (i), (ii i) reaction of the isolated hydroperoxide from stage (ii) with the organic compound. The method is characterised in that the reaction in step (iii) tak es place in a tubular reactor, which comprises at least two feed points for the reaction mixture, the latter containing at least the organic compound, the hydroperoxide and the solvent, or at least two outlet points for the product mixture, or at least two feed points and at least two outlet points.

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