Manufacture of styrene


508,666. Styrene. CONSORTIUM FUR ELEKTROCHEMISCHE INDUSTRIE GES. Jan. 30, 1939, No. 3113. Convention date, Feb. 2, 1938. [Class 2 (iii)] Styrene is prepared by heating a mixture of benzene vapour and acetylene under reduced pressure' for example at about 800-1000‹ C. Examples are given in which the reaction is effected in a tube made of the chromium-iron alloy " Sicromal 12 " (Registered Trade Mark) under reduced pressures ranging from 11 to 40 mm. of mercury: Diphenyl is produced as a bye-product.




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