Transformer oil processing

Details Transformer oil processing Transformer oil processing

1977-06-29

1978-05-09

Crasanakis, George

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208 3, 208211, 208254H, 208143, C10G 2704, C10G 2300

Patent

active

040885666

ABSTRACT:
A transformer oil processing sequence is disclosed which produces a superior oil without the use of large doses of sulfuric acid and the resultant sludge problems. The process comprises contacting a naphthenic based oil with an oxygen-containing gas in the presence of a catalytic amount of sulfuric acid under mild conditions of temperature and pressure and caustic washing the resultant product. The caustic washed product is then hydrogenated.

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patent: 2944015 (1960-07-01), Rausch et al.
patent: 2973315 (1961-02-01), Watson
patent: 3145161 (1964-08-01), Anderson et al.
patent: 3341448 (1967-09-01), Ford et al.
patent: 3502567 (1970-03-01), Mills et al.
patent: 3681233 (1972-08-01), Mills et al.
patent: 3830730 (1974-08-01), Mead et al.
patent: 3953319 (1976-04-01), Chesluk et al.

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