Cleaning of articles

Details Cleaning of articles Cleaning of articles

C - Chemistry, Metallurgy

23

G

C23G 5/02 (2006.01) B01D 3/38 (2006.01) C23G 5/028 (2006.01)

Patent

CA 2051291

QM 36074 ABSTRACT CLEANING OF ARTICLES Articles contaminated with soil etc are cleaned by contact with a non-chlorinated organic solvent having a relatively low flashpoint, such contact being made at a temperature below such flashpoint. The articles are then contacted with an aqueous rinsing medium at a temperature below the flashpoint of the solvent. These steps lead to contamination of the solvent and the rinsing medium and to free them of the contaminants, which are substantially non-volatile, the contaminated solvent and rinsing medium are fed to a steam distillation unit in which the rinsing medium and solvent are co-distilled at a temperature above the flashpoint of the solvent. The steam distillation is carried out in a fire hazard containment zone in which oxygen is substantially excluded during normal operation of the steam distillation unit by the water/solvent vapour generated, and during commencement and cessation phases of steam distillation by the generation of an inert gaseous fluid.

Affiliated with

Also associated with

Rating

Cleaning of articles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cleaning of articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cleaning of articles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1744731