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    12.
    发明专利
    未知

    公开(公告)号：DE502006003631D1

    公开(公告)日：2009-06-10

    申请号：DE502006003631

    申请日：2006-08-23

    Applicant: BASF SE

    Inventor： LORENZ RUDOLF ERICH ,  PINKOS ROLF ,  STEINIGER MICHAEL ,  SCHAEFER GERD

    IPC: C07C29/17 ,  C07C29/76 ,  C07C31/30 ,  C07C33/035

    Abstract: The present invention relates to processes for making 1,4-butanediol, 1,4-butenediol, or a mixture thereof by processing 1,4-butynediol in a dynamic mixing apparatus in an inert gas atmosphere at from 25 to 150° C. at a shear rate in the radial gap between rotor and stator of the mixing apparatus of more than 100 000 sec-1; phase separating the processed 1,4-butynediol at a temperature of from 25 to 150° C.; removing a bottom phase to obtain purified 1,4-butynediol; and reacting the purified 1,4-butynediol with hydrogen in the presence of a catalyst.

    13.
    发明专利
    未知

    公开(公告)号：AT430120T

    公开(公告)日：2009-05-15

    申请号：AT06792973

    申请日：2006-08-23

    Applicant: BASF SE

    Inventor： LORENZ RUDOLF ERICH ,  PINKOS ROLF ,  STEINIGER MICHAEL ,  SCHAEFER GERD

    IPC: C07C29/17 ,  C07C29/76 ,  C07C31/30 ,  C07C33/035

    Abstract: The present invention relates to processes for making 1,4-butanediol, 1,4-butenediol, or a mixture thereof by processing 1,4-butynediol in a dynamic mixing apparatus in an inert gas atmosphere at from 25 to 150° C. at a shear rate in the radial gap between rotor and stator of the mixing apparatus of more than 100 000 sec-1; phase separating the processed 1,4-butynediol at a temperature of from 25 to 150° C.; removing a bottom phase to obtain purified 1,4-butynediol; and reacting the purified 1,4-butynediol with hydrogen in the presence of a catalyst.

    16.
    发明专利
    未知

    公开(公告)号：BRPI0808032A2

    公开(公告)日：2014-06-17

    申请号：BRPI0808032

    申请日：2008-02-25

    Applicant: BASF SE

    Inventor： SIRCH TILMAN ,  STEINIGER MICHAEL ,  MAAS STEFFEN ,  RITTINGER STEFAN ,  SCHLITTER STEPHAN

    IPC: C07C29/141 ,  C07C45/75 ,  C07C45/82 ,  C07C47/19

    Abstract: The preparation of hydroxypivalaldehyde is effected by aldolizing isobutyraldehyde with formaldehyde and subsequently working up the resulting reaction effluent by distillation, wherein the reaction effluent is fed to a distillation column which is operated at a top pressure in the range from 0.5 to 1.5 bar and in which a two-stage condensation is provided in the top region, in which the vapors are first conducted into a partial condenser operated at a temperature in the range from 50 to 80° C., whose condensate is recycled at least partly into the distillation column, and in which the vapors uncondensed in the partial condenser are fed to a downstream condenser operated at a temperature in the range from −40 to +30° C., whose condensate is at least partly discharged.

    METHOD FOR PURIFYING POLYMETHYLOLS
    17.
    发明专利
    METHOD FOR PURIFYING POLYMETHYLOLS 未知

    公开(公告)号：SG171403A1

    公开(公告)日：2011-07-28

    申请号：SG2011037611

    申请日：2009-12-07

    Applicant: BASF SE

    Inventor： SIRCH TILMAN ,  STEINIGER MICHAEL ,  MAAS STEFFEN ,  RITTINGER STEFAN ,  SCHLITTER STEPHAN

    Abstract: METHOD FOR PURIFYING POLYMETHYLOLSAbstractThe present invention relates to a process for distilling an aqueous plymethylolmixture which comprises a polymethylol of the formula (I)[err]in which each R is independently a further methylol group or an alkyl group having 1 to12 carbon atoms of an aryl or aralkyl group having 6 to 22 carbon atoms, a tertiaryamine, water and the adduct of tertiary amine and tomic acid(amine fumate), whichcomprises performing the distillation in a distillation column which is connected at thebottom to an evaporator, the bottom temperature being above the evaporationtemperature of the monoester of formic acid and polymethylol(polymethylol furmate)which forms during distillation. The present invention further relates to a composition comprising polymethylol and 1 to 10 000 ppm by weight of polymethylol formate, and tothe use thereof.No suitable drawings.

    18.
    发明专利
    未知

    公开(公告)号：BRPI0708286A2

    公开(公告)日：2011-05-24

    申请号：BRPI0708286

    申请日：2007-02-23

    Applicant: BASF SE

    Inventor： MAAS STEFFAN ,  JOHANN THORSTEN ,  KOCH MICHAEL ,  SIRCH TILMAN ,  SCHLITTER STEPHAN ,  RITTINGER STEFAN ,  STEINIGER MICHAEL

    IPC: C07C29/141 ,  C07C31/20

    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.

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