Method of preparing alcohols having two to four carbon atoms by catalytic hydration of olefins

US4351970A · kind A · utility

Assignee

• Veba-Chemie Aktiengesellschaft

Inventors

• August Sommer
• Wilhelm Heitmann · Herne, DE
• Rainer Brucker · Castrop-Rauxel, DE

Key dates

• Filing date: May 21, 1980
• Grant date: Sep 28, 1982
• Expiry date: May 21, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C29/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

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: PA0 A. When ethylene is the olefin, the reaction is conducted at a temperature of 200.degree.-300.degree. C.; and PA0 B: When propylene is the olefin the reaction is conducted at a temperature of 150.degree. to 220.degree. C.