16.
    发明专利
    未知

    公开(公告)号:DE102006009838A1

    公开(公告)日:2007-09-06

    申请号:DE102006009838

    申请日:2006-03-01

    Applicant: BASF AG

    Abstract: A process for catalytically hydrogenating methylolalkanals of the general formula in which R1 and R2 are each independently a further methylol group or an alkyl group having from 1 to 22 carbon atoms or an aryl or aralkyl group having from 6 to 33 carbon atoms, in the liquid phase over a hydrogenation catalyst, which comprises setting a pH of from 7.0 to 9.0 in the hydrogenation effluent by adding at least one tertiary amine, an inorganic base or an inorganic or organic acid to the hydrogenation feed.

    18.
    发明专利
    未知

    公开(公告)号:DE102004058887A1

    公开(公告)日:2006-06-08

    申请号:DE102004058887

    申请日:2004-12-06

    Applicant: BASF AG

    Abstract: A process for preparing N,N-dimethylacetamide (DMAC) by continuously reacting methyl acetate (MeOAc) with dimethylamine (DMA) in the presence of a basic catalyst, wherein MeOAc is used in the form of a methanolic solution and in the range from 0.0002 to 0.09 mol of catalyst per mole of MeOAc, and performing the reaction at a temperature in the range from 90 to 140° C. and at an absolute pressure in the range from 10 to 30 bar.

    20.
    发明专利
    未知

    公开(公告)号:DE10055180A1

    公开(公告)日:2002-05-29

    申请号:DE10055180

    申请日:2000-11-08

    Applicant: BASF AG

    Abstract: The invention relates to a method for catalytically hydrating a poly- or monomethylol alkanal of the general formula (I), wherein R is the same or different and may represent a substituted or unsubstituted aliphatic hydrocarbon with 6 to 22 carbon atoms, an aryl or arylalkyl group with 6 to 22 carbon atoms or a methylol group, in the presence of a copper-containing catalyst. The inventive method is characterized in that the poly- or monomethylol alkanal containing batch to be hydrated has a total content of up to 5 ppm of metal ions of the groups 3 to 14 of the periodic system.

Patent Agency Ranking