Selective extraction solvent recovery using regenerated...

Details Selective extraction solvent recovery using regenerated... Selective extraction solvent recovery using regenerated...

C - Chemistry, Metallurgy

07

C

260/715.1

C07C 7/144 (2006.01) C10G 21/28 (2006.01) C10G 31/11 (2006.01)

Patent

CA 1231985

ABSTRACT OF THE DISCLOSURE Selective extraction solvents such as NMP, phenol or furfural employed for the extraction of specialty oils, i.e. lubricating, transformer and insulating oils, to remove undesirable aromatic compo- nents therefrom, is itself recovered from the extract stream and/or raffinate streams by preferential per- meation through selective membranes of regenerated cellulose. The extract stream, because of its higher solvent content, is the preferred stream for solvent recovery treatment by the reverse osmosis membrane permeation technique. Solvent recovery employing mem- brane permeation exhibits the advantage of not being energy intensive as is distillation or stripping. The solvent is recovered at a high enough flux rate and at a high enough level of purity to be introduced back into the solvent extraction process optionally at some point in the process wherein the composition of the recovered solvent approximately matches the composi- tion of the solvent present in the process at the point of introduction.

461358

Affiliated with

Also associated with

Rating

Selective extraction solvent recovery using regenerated... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Selective extraction solvent recovery using regenerated..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective extraction solvent recovery using regenerated... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1284453