Title:
AROMATIC PITCH DERIVED FROM INTERMEDIATE FRACTION OF CATALYTIC CRACKING PLANT RESIDUAL OIL AND MANUFACTURE
Document Type and Number:
Japanese Patent JPS58147491
Kind Code:
A
Abstract:
A pitch suitable for carbon artifact production (i) contains from 80 to 100 percent by weight of toluene insolubles, (ii) has been derived from a deasphaltenated middle fraction of a feedstock, and (iii) is substantially free of impurities and ash, and/or has less than 15 wt % of quinoline insolubles. Suitably the deasphaltenated fraction is rich in 4, 5 and 6 polycondensed aromatic ring compounds, and/or is from a cat cracker bottom. Preferably the pitch is prepared by heat soaking a said deasphaltenated middle fraction and subsequently removing oils therefrom by sub-atmospheric pressure stripping.
Inventors:
GAJII DEITSUKAKIAN
Application Number:
JP1954083A
Publication Date:
September 02, 1983
Filing Date:
February 08, 1983
Export Citation:
Assignee:
EXXON RESEARCH ENGINEERING CO
International Classes:
C10C3/00; C10C3/02; C10C3/06; D01F9/14; D01F9/145; D01F9/155; (IPC1-7): C10C3/00; D01F9/14
Domestic Patent References:
| JPS58147489A | 1983-09-02 | |||
| JPS58147490A | 1983-09-02 |
Attorney, Agent or Firm:
Minoru Nakamura