Title:
MANUFACTURE OF FORMIC ACID
Document Type and Number:
Japanese Patent JPS60246341
Kind Code:
A
Abstract:
1. A process for the preparation of anhydrous or substantially anhydrous formic acid by hydrolyzing methyl formate in the presence of a formamide and then obtaining the formic acid from the hydrolysis mixture by distillation, wherein the hydrolysis is carried 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**2 are each alkyl or together form an alkylene group, giving a 5-membered to 7-membered ring, 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 N atom can be replaced by an oxygen atom.
Inventors:
HAINTSU HOOENSHIYUTSUTSU
YOHANESU EE SHIYUMITSUTO
HANSU KIIFUAA
YOHANESU EE SHIYUMITSUTO
HANSU KIIFUAA
Application Number:
JP9971885A
Publication Date:
December 06, 1985
Filing Date:
May 13, 1985
Export Citation:
Assignee:
BASF AG
International Classes:
B01J31/00; B01J31/02; C07B61/00; C07C27/00; C07C53/02; C07C27/02; C07C51/00; C07C51/09; C07C67/00; (IPC1-7): B01J31/02; C07C27/02; C07C51/09; C07C53/02
Attorney, Agent or Firm:
Toshio Yano (2 outside)
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