Deutsche Texaco Aktiengesellschaft

Gunter Strehlke

Wilhelm Neier

Gunther Osterburg

Werner Webers

Karl-Heinz Gluzek

Karl-Heinz Heinemann

Olaf Petersen

Friedrich Henn

An improved process for the production of lower aliphatic alcohols by the catalytic hydration of a lower aliphatic olefin in the presence of a strongly acidic cation exchange resin catalyst in a fixed bed reactor and in which a cationic surfactant has been added to the process water is provided.

Process for the continuous production of lower aliphatic alcohols

Formation of undesirable popcorn polymer on the walls of a reaction vessel during thermal dimerization of butadiene is prevented by coating the walls with a falling film of aqueous sodium nitrite solution.

Process for the thermal dimerization of butadiene

Acetone containing less than 0.2 weight percent water is produced in an extractive distillation of acetone containing appreciable quantities of water by utilizing isopropyl alcohol as the extracting agent.

Extractive distillation of acetone

Process for the production of an aliphatic alcohol comprising reacting an olefin having from 2 to 4 carbon atoms with sulfuric acid to form an ester reaction product, diluting said product with water and steam stripping to remove a lower aliphatic alcohol overhead leaving a dilute sulfuric acid solution, concentrating said dilute sulfuric acid solution in a first stage indirect evaporator, recycling the steam generated in this first stage evaporator to the steam stripping step, further concentrating the sulfuric acid solution in a second stage direct heat evaporator to form a concentrated sulfuric acid solution and recycling said concentrated sulfuric acid solution for reaction with fresh olefin feed.

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Duisburg, Germany

Gunter Strehlke