| 摘要 |
PCT No. PCT/DK89/00308 Sec. 371 Date Sep. 5, 1990 Sec. 102(e) Date Sep. 5, 1990 PCT Filed Dec. 22, 1989 PCT Pub. No. WO90/07606 PCT Pub. Date Jul. 12, 1990.Contaminants containing non-polar neutral lipid are removed from a solvent that has been used for dry cleaning by placing used solvent in contact with a lipase, which is stable and exhibits an activity in the solvent, or with an immobilized product of said lipase, and with an adsorbent.
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