2.
    发明专利
    未知

    公开(公告)号:DE19913995A1

    公开(公告)日:2000-10-05

    申请号:DE19913995

    申请日:1999-03-29

    Applicant: BASF AG

    Abstract: The invention relates to an improved method for the preparation of granular N-alkyl ammonium acetonitrile salts of formula (I) R R N R -CR R -CN Y in which R to R are hydrogen or organic rests and Y is a sulfate or hydrogen sulfate anion; from an aqueous solution of the compound of formula (II) R R N R -CR R -CN R O-SO2-O in which R is C1 to C4 alkyl. According to the invention the aqueous solution is evaporated at a temperature of between 80 and 250 DEG C and a pressure of between 10 mbar and 2 bar so as to obtain a melt and said melt is then left to solidify. During or after evaporation usual carrier materials and/or auxiliaries can be added. Lastly the resulting solidified compound (I) is given the desired granular form.

    3.
    发明专利
    未知

    公开(公告)号:DE50005416D1

    公开(公告)日:2004-04-01

    申请号:DE50005416

    申请日:2000-03-17

    Applicant: BASF AG

    Abstract: Improved process for the preparation of granular N-alkylammoniumacetonitrile salts Iwhere R1 to R5 are hydrogen or organic radicals, and Y- is a sulfate or hydrogensulfate anion,from an aqueous solution of the compound IIwhere R6 is C1- to C4-alkyl,which comprises evaporating this aqueous solution at a temperature of from 80° C. to 250° C. and a pressure of from 10 mbar to 2 bar to give a melt, then allowing the melt to solidify, where, during or following the evaporation, customary carrier materials and/or auxiliaries can be added, and the resulting solidified compound I is converted into the desired granular form.

    5.
    发明专利
    未知

    公开(公告)号:TR200102806T2

    公开(公告)日:2002-04-22

    申请号:TR200102806

    申请日:2000-03-17

    Applicant: BASF AG

    Abstract: Improved process for the preparation of granular N-alkylammoniumacetonitrile salts Iwhere R1 to R5 are hydrogen or organic radicals, and Y- is a sulfate or hydrogensulfate anion,from an aqueous solution of the compound IIwhere R6 is C1- to C4-alkyl,which comprises evaporating this aqueous solution at a temperature of from 80° C. to 250° C. and a pressure of from 10 mbar to 2 bar to give a melt, then allowing the melt to solidify, where, during or following the evaporation, customary carrier materials and/or auxiliaries can be added, and the resulting solidified compound I is converted into the desired granular form.

    6.
    发明专利
    未知

    公开(公告)号:AT260244T

    公开(公告)日:2004-03-15

    申请号:AT00912618

    申请日:2000-03-17

    Applicant: BASF AG

    Abstract: Improved process for the preparation of granular N-alkylammoniumacetonitrile salts Iwhere R1 to R5 are hydrogen or organic radicals, and Y- is a sulfate or hydrogensulfate anion,from an aqueous solution of the compound IIwhere R6 is C1- to C4-alkyl,which comprises evaporating this aqueous solution at a temperature of from 80° C. to 250° C. and a pressure of from 10 mbar to 2 bar to give a melt, then allowing the melt to solidify, where, during or following the evaporation, customary carrier materials and/or auxiliaries can be added, and the resulting solidified compound I is converted into the desired granular form.

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