Process for producing shaft furnace cokes

Details Process for producing shaft furnace cokes Process for producing shaft furnace cokes

1979-08-22

1981-06-09

Dees, Carl F.

Distillation: processes, thermolytic

Feed of two or more carbonaceous material

201 23, 44 1F, 44 23, C10B 5502, C10L 516

Patent

active

042723248

ABSTRACT:
An impregnated carbonaceous material which can be mixed with basic coal to form a mixture which, once roasted, forms an effective shaft furnace coke. The impregnated carbonaceous material is formed by finely crushing an inert carbonaceous material such as powdered coke, coal gasification char, coal liquifaction residue coal, oil coke, and semi-dry-distilled char, and mixing and impregnating the crushed carbonaceous material with an aromatic pitch such as coal tar, coal tar pitch, asphalt, and pitch obtained by heat-treating or solvent extracting an asphalt. The mixing is conducted at a temperature above the aromatic pitch melting point. The impregnated carbonaceous material contains preferably 50 to 95 parts by weight of crushed inert carbonaceous material and 5 to 50 parts by weight aromatic pitch.

REFERENCES:
patent: 2834660 (1958-05-01), Eisenhut et al.
patent: 3001856 (1961-09-01), Reerink et al.
patent: 3403989 (1968-10-01), Blake et al.
patent: 3926576 (1975-12-01), Schmalfeld et al.
patent: 4135983 (1979-01-01), Kiritani et al.

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