Lubricating oil refining process

Details Lubricating oil refining process Lubricating oil refining process

1993-04-27

1994-07-12

Myers, Helane

Mineral oils: processes and products

Fractionation

Liquid extraction with solvents

208311, 208319, 208320, 208322, C10G 2128, C10G 708, C10G 2120, B01D 306

Patent

active

053285964

ABSTRACT:
Thermal degradation of furfural in solvent refining of lubricating oil stocks is reduced by use of a thin-film evaporator for the final stages of furfural recovery, permitting increased pressure to be used in each stage of furfural recovery.

REFERENCES:
patent: 4208263 (1980-06-01), Audeh et al.
patent: 4399025 (1983-08-01), Fletcher et al.
patent: 4419227 (1983-12-01), Sherman
patent: 4422923 (1983-12-01), Wirtz et al.
patent: 5059303 (1991-10-01), Taylor et al.
Thermal Stability of Furfural, A. Dunlop and F. N. Peters, Jr., Ind. & Eng. Chemistry, vol. 32, #12, pp. 1639-1641.
Kirk-Othmer, Encyclopedia of Chemical Technology, pp. 562-570, 2nd Ed., vol. 8.
Encyclopedia of Chemical Processing and Design, Marcel Dekker, Inc., No. 20, p. 415.

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