Petroleum pitch preparation

Details Petroleum pitch preparation Petroleum pitch preparation

1975-03-10

1977-03-22

O'Keefe, Veronica

Mineral oils: processes and products

Oxidation of mineral oils

To form asphalts, tars or pitches

208 5, 208 6, C10C 304

Patent

active

040135403

ABSTRACT:
A process having a specified sequence of steps for preparing a petroleum pitch binder suitable for electrodes used in smelting aluminum is disclosed, in which a decant oil petroleum fraction is oxy-activated under specified conditions of temperature, pressure, and time, then heat treated under other specified conditions, and finally distilled under specified conditions to form a petroleum pitch having desired properties.

REFERENCES:
patent: 237662 (1881-02-01), De Smedt
patent: 2029504 (1936-02-01), Ragatz
patent: 2046081 (1936-06-01), McNeil
patent: 3238116 (1966-03-01), Hamner et al.
patent: 3725240 (1973-04-01), Baum
patent: 3923633 (1975-12-01), Senolt et al.

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