Recovery of chlorinated poly(vinyl chloride)

Details Recovery of chlorinated poly(vinyl chloride) Recovery of chlorinated poly(vinyl chloride)

1980-12-24

1983-02-08

Henderson, C. A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

525356, C08F 600

Patent

active

043730930

ABSTRACT:
A process is disclosed for recovering chlorinated poly(vinyl chloride) ("CPVC") which is dissolved in liquid chlorine ("Cl.sub.2 ") to form a CPVC solution. CPVC is recovered by adding the CPVC solution to a halogenated lower alkaline ("HLA"), which is simultaneously an excellent solvent for liquid Cl.sub.2 and a very poor solvent for CPVC. This peculiar property causes the CPVC to be precipitated from the three-component mixture as a finely divided solid with different morphological properties than if the HLA was added to the CPVC solution. The solid CPVC precipitated may then be separated from the solution of liquid Cl.sub.2 in the HLA. This solution of Cl.sub.2 in HLA is further separated into its component liquids, namely HLA and liquid Cl.sub.2 which are then each reused.

REFERENCES:
patent: 2481188 (1949-09-01), Babayan
patent: 2571901 (1951-10-01), Lawlor
patent: 3062795 (1962-11-01), Cain

Affiliated with

Also associated with

Rating

Recovery of chlorinated poly(vinyl chloride) does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recovery of chlorinated poly(vinyl chloride), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovery of chlorinated poly(vinyl chloride) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-50653