Method for recovering a dihydric phenol from a scrap polyester

Details Method for recovering a dihydric phenol from a scrap polyester Method for recovering a dihydric phenol from a scrap polyester

C - Chemistry, Metallurgy

07

C

260/617.7, 260/6

C07C 37/86 (2006.01) C07C 37/055 (2006.01) C07C 39/16 (2006.01) C08J 11/16 (2006.01)

Patent

CA 1312628

08CL-06627 METHOD FOR RECOVERING A DIHYDRIC PHENOL FROM A SCRAP POLYESTER ABSTRACT OF THE DISCLOSURE: A method for recovering a dihydric phenol from scrap polyester which comprises: a. contacting an aromatic polyester selected from the group consisting of polycarbonate, copolyestercarbonate and a polyarylate with (1) an aqueous ammoniacal solution of sufficient strength to sever the ester bonds of the aromatic polyester and (2) an alkylchloride in which the polyester is at least partially soluble, b. forming two mobile liquid phases, the top phase being aqueous and the bottom phase being the alkyl chloride and containing ammonium dihydric phenolate; c. separating the top phase from the bottom phase; d. recovering from the bottom phase the dihydric phenol.

600126

Affiliated with

Also associated with

Rating

Method for recovering a dihydric phenol from a scrap polyester does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for recovering a dihydric phenol from a scrap polyester, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for recovering a dihydric phenol from a scrap polyester will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1271145