عملية لتحضير أكسيد البروبيلين PROPYLENE OXIDE

    公开(公告)号:SA1477B1

    公开(公告)日:2006-10-29

    申请号:SA01220361

    申请日:2001-09-12

    Applicant: BASF AG

    Abstract: الملخص: عمليةلتحضيرأكسيدالبروبيلين propylene oxide فيها:(i) يتمتفاعلالبروبين propene معفوقأكسيدالهيدروجين hydrogen peroxide فيوجودالميثانول methanol ليعطيأكسيدبروبيلين propylene oxide،حيثينتجمخلوط (Gi) يتضمنعلىأكسيدبروبيلين،propylene oxide ميثانول methanol،ماءوفوقأكسيدهيدروجين hydrogen peroxide غيرمتفاعل،(ii) يتمفصلمخلوط (Gii) يتضمنعلىميثانول methanol،ماءوفوقأكسيدالهيدروجين hydrogen peroxide منالمخلوط (Gi)،لينتجمخلوط (Ga) يتضمنعلىأكسيدالبروبيلين propylene oxide،وiii)) يتمفصلالماءمنالمخلوط (Gi) لينتجمخلوط (Giii) يتضمنعلىميثانول methanol وفورماتالمثيل methyl formate.

    163.
    发明专利
    未知

    公开(公告)号:DE50204869D1

    公开(公告)日:2005-12-15

    申请号:DE50204869

    申请日:2002-02-06

    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.

    164.
    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.

    165.
    发明专利
    未知

    公开(公告)号:ES2217046T3

    公开(公告)日:2004-11-01

    申请号:ES01105436

    申请日:1997-08-06

    Applicant: BASF AG

    Abstract: The use of inorganic or organic poly acids is claimed for treating mineral fertilisers containing a nitrification inhibitor. The use of compounds of formula (I) is claimed as nitrification inhibitors. R1 = H, halo or 1-4C alkyl; R2 = 1-4C alkyl; R3 = H or CH2OH, and when R3 = H, the compound may be converted to a phosphoric acid salt. A mineral fertiliser containing a poly acid and optionally (I) is also claimed. 3,4-dimethylpyrazole (Ia), 4-chloro-3-methyl-pyrazole (Ib), N-hydroxymethyl-3,4-dimethylpyrazole (Ic), N-hydroxymethyl-4-chloro-3-methylpyrazole (Id), acid addition salts of (Ic) and (Id), and mixtures of two or more of (Ia)-(d) are new.

    Method for producing an epoxide.
    167.
    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.

    170.
    发明专利
    未知

    公开(公告)号:DE59810556D1

    公开(公告)日:2004-02-12

    申请号:DE59810556

    申请日:1998-06-05

    Applicant: BASF AG

    Abstract: A process for regenerating a zeolite catalyst comprises the following stages: (I) Heating a partially or completely deactivated catalyst to 250-600° C. in an atmosphere which contains less than 2% by volume of oxygen, (II) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from 0.1 to 4% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof, and (III) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from more than 4 to 100% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof.

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