A method for cleaning a solvent which may conatin hazardous particulate material which comprises liquid and vapor portions which are being recirculated in a closed system. Suspended particulate material is filtered out of the liquid. Dissolved particulate material is removed by distilling the liquid. The vapor is condensed and combined with the clean liquid. A portion of the vapor is recirculated. The solvent may be cleaned and recirculated continuously.
申请公布号
US4917807(A)
申请公布日期
1990.04.17
申请号
US19880191507
申请日期
1988.05.09
申请人
WESTINGHOUSE ELECTRIC CORP.
发明人
PRISCO, JR., ANTHONY J.;SEWTER, BRUCE R.;BRIGGS, WILLIAM E.;ARCHER, GARY L.