Patent ID: 6137005
Filing Date: 2000-10-24
Classification: C07C

Abstract:
A method for manufacture of products containing disalts of formic acid, which comprisesmixing and reacting K-, Na-, Cs- or NH.sub.4 -formate; K-, Na- or Cs-hydroxide; K-, Na- or Cs-carbonate; K-, Na- or Cs-bicarbonate; or NH.sub.3 with formic acid containing 0-50% water in a reactor at 50-70.degree. C. until approximately 50-55% of the acid is consumed,cooling the mixture to 20-40.degree. C.,filtering the slurry thus formed,collecting or recirculating the filtrate, andtransferring the filter cake containing disalts to a drier/mixer where the disalts are dried at 40-80.degree. C.,to produce a dry, free-flowing and stable product comprising disalts of formic acid.