14.
    发明专利
    未知

    公开(公告)号:DE10004909A1

    公开(公告)日:2001-08-09

    申请号:DE10004909

    申请日:2000-02-04

    Applicant: BASF AG

    Abstract: N-Methyl-2-pyrrolidone (NMP) is prepared by preparing a mixture comprising monomethylamine, dimethylamine and trimethylamine and ammonia in a first process step by reacting ammonia with methanol at elevated temperature in the presence of a catalyst, separating 10 off the ammonia, reacting the mixture comprising the methylamines with gamma-butyrolactone (gamma-BL), in a molar ratio of monomethylamine to gamma-BL of at least 1 in a second process step at elevated temperature and superatmospheric pressure, separating NMP and unreacted methylamines from the reaction product and returning unreacted methylamines to the first process step for reaction with methanol and ammonia.

    15.
    发明专利
    未知

    公开(公告)号:DE502004003979D1

    公开(公告)日:2007-07-12

    申请号:DE502004003979

    申请日:2004-07-03

    Applicant: BASF AG

    Abstract: In the production of propargyl alcohol (I) by conversion of an aqueous formaldehyde solution containing acetylene in presence of a catalyst containing copper acetylide at 1-15 (preferably 3-7) bars and 70-120[deg]C without formation of a coherent gas phase, the aqueous formaldehyde solution contains an organic solvent for acetylene and the catalyst is arranged in a fluidized bed.

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