Process for the conversion of pitch into crystalloidal pitch

Details Process for the conversion of pitch into crystalloidal pitch Process for the conversion of pitch into crystalloidal pitch

1976-03-10

1977-08-16

O'Keefe, Veronica

Mineral oils: processes and products

Asphalts, tars, pitches and resins; making, treating and...

Chemical modification of asphalt, tar, pitch or resin

264 291, 208 39, 106284, C10C 300

Patent

active

040424863

ABSTRACT:
Crystalloidal pitch is obtained by subjecting solid pitch particles measuring not more than 5 mm in cross-sectional equivalent diameter to a treatment to prevent cohesion and subsequently bringing the cohesion-proof solid pitch particles into contact with a non-oxidative gas at temperatures of from 350.degree. C to 550.degree. C while maintaining a gas flow rate sufficient to provide a suspension wherein the gas constitutes at least 30% by volume. The crystalloid pitch is useful as a precursor for various carbon products.

REFERENCES:
patent: 3812240 (1974-05-01), Whittaker et al.
patent: 3974264 (1976-10-01), McHenry

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