double-solvent refining

double-solvent refining

[¦dəb·əl ¦säl·vənt rə′fīn·iŋ]
(chemical engineering)
Petroleum-refining process using two solvents to simultaneously deasphalt and solvent-treat lubricating-oil stocks.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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