Mineral oils: processes and products – Oxidation of mineral oils – To form asphalts – tars or pitches
Patent
1985-02-20
1987-05-12
Metz, Andrew H.
Mineral oils: processes and products
Oxidation of mineral oils
To form asphalts, tars or pitches
208 22, 208 39, 208 42, 208 43, 252500, 252502, 4234471, 4234472, 4234476, C10G 900, C10G 1100, C10C 104, C10C 300
Patent
active
046647740
ABSTRACT:
A novel coal tar based, low solids content, pitch is produced by oxidizing a selected coal tar distillation fraction with air to oxygen at elevated temperatures. This pitch is applicable to end use in which low solids content is desirable. Specifically it may be advantageously applied to the impregnation of carbon electrodes. The oxidized selected coal tar based low solids material described is characterized by high carbon yield and higher product density and has a higher in situ coking value and lower sulfur content which make it particularly beneficial when it is used as an impregnating pitch as compared to the currently commercially used petroleum based pitch.
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Bart Edward F.
Chu Arthur S.
Cook George R.
Horbachewski David M.
Allied Corporation
Friedenson Jay P.
Metz Andrew H.
Myers Helane
Plantamura Arthur J.
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