| 摘要 |
PURPOSE:A mixture of methanol and methyl formate is brought into contact with a catalyst containing an alkali metal compound of decompose only methyl formate under specific conditions, thus producing methanol and high-purity carbon monoxide. CONSTITUTION:A catalyst is prepared by supporting an alkali metal compound other than alkali alcoholate on a carrier such as kieselguhr or silica gel at a ratio of 0.05-3 milliatoms, as an alkali metal atom, to 1g of the carrier. The alkali metal compound is, e.g., potassium hydroxide or sodium sulfate. The catalyst is placed in the reactor and a (10-70):(90-30)(wt%) mixture of methyl formate and methanol is continuously fed a a liquid space velocity of 10-100hr<-1> or at a gas-space velocity of 5,000-50,000hr<-1> under conditions of 200-500 deg.C and atmospheric pressure to 350atm. Thus, the catalytic pyrolysis of only methyl formate is selectively effected to obtain methanol and high-purity carbon monoxide. |
