Abstract:
A process for dimerizing straight chain alpha-olefins having 3 to 8 carbon atoms using as a catalyst sodium metal dispersed upon the carbonate of an alkali metal having an atomic number of 19 to 55, inclusive, or of the metal barium. Dimerizations of propylene at about 1000 psi in the presence of a catalyst consisting of sodium dispersed on potassium carbonate give good yields of 4methylpentene-1.
Abstract:
Mixed-alkyl lead compounds are prepared by contacting a mixture of at least two tetraalkyl lead compounds capable of redistribution with an activated aluminosilicate clay, a synthetic zeolite, a natural zeolite, an activated silica or an activated alumina. These mixed alkyl lead compounds may be used in anti-knock compositions, and the redistribution reaction may be carried out in the presence of halogenated hydrocarbon materials employed as scavengers.