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专利名称：Process for the preparation of formic acid发明人：HOHENSCHUTZ, HEINZ, DR.,SCHMIDT,
JOHANNES E., DR.,KIEFER, HANS, DR.
申请号：EP85104902.3申请日：19850423公开号：EP0161544B1公开日：19880302
摘要：1. A process for the preparation of anhydrous or substantially anhydrous formicacid by hydrolyzing methyl formate in the presence of a formamide and then obtainingthe formic acid from the hydrolysis mixture by distillation, wherein the hydrolysis iscarried out in the presence of 0.5-3 moles, per mole of methyl formate, of a water-soluble formamide of the formula I see diagramm : EP0161544,P5,F1 where R**1 and R**2are each alkyl or together form an alkylene group, giving a 5-membered to 7-memberedring, with the proviso that the sum of the carbon atoms in R**1 and R**2 is 5 or 6 and that,in the case of an alkylene group, a carbon atom which is not directly bonded to the Natom can be replaced by an oxygen atom.
申请人：BASF AKTIENGESELLSCHAFT,BASF AKTIENGESELLSCHAFT
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