Process of treating lubricating oils with acidified sorbent

Details Process of treating lubricating oils with acidified sorbent Process of treating lubricating oils with acidified sorbent

1977-09-02

1978-11-14

Crasanakis, George

Mineral oils: processes and products

Refining

Nitrogen contaminant removal

208297, 208299, C10G 2500

Patent

active

041254570

ABSTRACT:
Hydrocarbon lubricating oils are upgraded by removing polar compounds contained therein and improving the oxidation stability thereof using an acidified sorbent, such as alumina, silica-alumina or bauxite treated with anhydrous HCl, anhydrous HBr, aqueous (NH.sub.4).sub.2 SO.sub.4 or H.sub.2 SO.sub.4. The acidified sorbent contains at least 3%, by weight of the acidified sorbent, of Cl.sup.-, Br.sup.- or SO.sub.4 .sup.= ions. The process of upgrading the lube oils is carried out at a temperature ranging from ambient to about 250.degree. F and LHSV of 0.1 - 10.

REFERENCES:
patent: 962841 (1910-06-01), Hood et al.
patent: 1991049 (1935-02-01), Campbell

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