Document Type and Number:
Japanese Patent JPS4927401
Kind Code:
B1
Abstract:
1,250,736. Alkylated tars and their uses KUREHA KAGAKU KOGYO K.K. 13 Feb., 1970 [14 Feb., 1969], No. 7159/70. Headings C4X, C5E and C5F. Tar fractions obtained by thermal cracking of petroleum hydrocarbon at 700-2300 C., and said to consist mainly of compounds having 2-5 benzene rings, particularly 2-4 condensed benzene rings and being substantially free from side chains other than methyl groups, are alkylated with a C 2 -C 4 olefin in the presence of a suitable catalyst to give a more useful product. Suitable catalysts include silica-alumina, and La, Ce or Th supported on a zeolite carrier. Before alkylation the tar fraction may be hydrodesulphurized over a catalyst comprising Co, Mo or Ni in metallic, oxide or sulphide form supported on a suitable carrier, e.g. silicaalumina. The products of the above process are stated to be useful as, inter alia, heat transfer oils and electrical insulating oils.
Application Number:
JP1048869A
Publication Date:
July 17, 1974
Filing Date:
February 14, 1969
Export Citation:
International Classes:
C07C1/00; C07C2/66; C07C15/00; C07C67/00; C08L95/00; C10C1/08; C10C1/19; C10C1/20; C10C3/02; C10G69/06; H01B3/20; (IPC1-7): C10C1/08