METHOD FOR PREPARING CHLOROFORM AND DICHLOROMETHANE BY HYDROGENATION OF CARBON TETRACHLORIDE IN LIQUID

摘要

PURPOSE: Provided is a method for preparing chloroform and dichloromethane simultaneously by hydrogenation of carbon tetrachloride in liquid, which enhances a conversion of carbon tetrachloride into chloroform and dichloromethane. CONSTITUTION: The method comprises dissolving carbon tetrachloride in methanol, and reacting the carbon tetrachloride and methanol at the hydrogen pressure of 0-14 atm and the temperature of 65-140deg.C in the presence of catalyst. The catalyst is montmorillonite supported on palladium and montmorillonite supported on platinum. The method can prepare chloroform and dichloromethane simultaneously by hydrogenation of carbon tetrachloride in liquid, and enhance a conversion of carbon tetrachloride into chloroform and dichloromethane.