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    • 3. 发明公开
    • VERFAHREN ZUR HERSTELLUNG VON AMEISENSÄURE
    • VERFAHREN ZUR HERSTELLUNG VONAMEISENSÄURE
    • EP2139837A1
    • 2010-01-06
    • EP08717979.2
    • 2008-03-18
    • BASF SE
    • CHALLAND, NinaSAVA, XavierRÖPER, Michael
    • C07C51/00C07C51/02C07C53/06C07C53/02
    • C07C51/00B01J31/0202B01J31/0237B01J31/0271B01J31/2404B01J2231/625B01J2531/821C07C51/02C07C53/06C07C53/02
    • The invention relates to a method for producing formic acid by generating the corresponding ammonium formate by means of catalytic hydrogenation of carbon dioxide with hydrogen on a catalyst comprising a metal of groups 8 through 10 of the periodic system, in the presence of a primary, secondary, and/or tertiary amine, and by cleaving the ammonium formate by heating it in formic acid and the amine, characterized in that the primary, secondary, or tertiary amine is selected from the amines of formula I or the mixtures thereof, R1 through R3 being identical or different and being hydrogen, linear or branched alkyl radicals having 1 to 18 carbon atoms, cycloaliphatic radicals having 5 to 7 carbon atoms, aryl radicals and/or aryl alkyl radicals, at least one of the radicals R1 to R3 carrying a hydroxyl group, and that said hydrogenation is performed in a solvent having a boiling point of ≥105°C at normal pressure, and that the formic acid is obtained in the hydrogenation reaction mixture comprising the high-boiling solvent by thermal cleavage of the ammonium formate and distillation of the formic acid.
    • 本发明涉及一种生产甲酸的方法,该方法通过在含有周期系统第8-10族金属的催化剂上,用二氧化碳用氢催化氢化,在伯,仲 ,和/或叔胺,并且通过在甲酸和胺中将甲酸铵加热裂解甲酸铵,其特征在于伯胺,仲胺或叔胺选自式I的胺或其混合物,R1至R3 相同或不同并且是氢,具有1至18个碳原子的直链或支链烷基,具有5至7个碳原子的环脂族基团,芳基和/或芳基烷基,至少一个基团R 1至R 3携带羟基 并且所述氢化在常压下在沸点≥105℃的溶剂中进行,并且甲酸在氢化反应混合物中获得 e通过甲酸铵的热裂解和甲酸的蒸馏包含高沸点溶剂。