Mineral oils: processes and products – Oxidation of mineral oils – To form asphalts – tars or pitches
Patent
1978-11-03
1980-05-13
O'Keefe, Veronica
Mineral oils: processes and products
Oxidation of mineral oils
To form asphalts, tars or pitches
208 46, C10C 304
Patent
active
042027551
ABSTRACT:
A method for making pitch from petroleum bottoms fractions by air blowing in the presence of about 1 percent by weight of metallic sodium. The method reduces processing time by about one-third and the product is of the desired high density of about 1.25 g/ml. to above 1.30 g/ml. at 25.degree. C.
REFERENCES:
patent: 2179208 (1939-11-01), Burk et al.
patent: 2287511 (1942-06-01), Burk et al.
patent: 4096056 (1978-06-01), Haywood et al.
Nickles Harry B.
Solomon Jack M.
Spiegelman Gerald H.
Friedman Morton
Gazzola Albert L.
O'Keefe Veronica
Witco Chemical Corp.
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