PROCESS FOR THE PREPARATION OF ALCOHOLS WITH 2-4 CARBON ATOMS BY CATALYTIC HYDRATION OF OLEFINES

摘要

A method is disclosed of preparing alcohols having 2 to 4 carbon atoms by catalytic hydration of the corresponding olefins on acid catalysts at elevated temperature and elevated pressure, characterized in that byproducts of the hydration, namely corresponding ethers and/or low-polymerized hydrocarbons and/or undesired alcohols, which form upon the passage of the input product through catalyst bed, are fed to the input product before entry into the reactor, said method being characterized in that: A. When ethylene is the olefin, the reaction is conducted at a temperature of 200 DEG -300 DEG C.; and B: When propylene is the olefin the reaction is conducted at a temperature of 150 DEG to 220 DEG C.