Process for purifying recirculating gases of condensed polymer p

Details Process for purifying recirculating gases of condensed polymer p Process for purifying recirculating gases of condensed polymer p

1978-07-11

1980-03-04

Nozick, Bernard

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

Synthetic resins

Treating polymer containing material or treating a solid...

528502, 55 80, 55 97, C08F22042

Patent

active

041918215

ABSTRACT:
A process for eliminating low molecular-weight polymers from the recirculating gases of facilities carrying out ethylene polymerization or copolymerization at a pressure of 300 to 2500 bars and a temperature of 130.degree. C. to 350.degree. C., in which facilities the mixture of monomer and polymer leaving the reactor is expanded into a separator operating under a pressure of 50 to 500 bars. The gases are passed, at a temperature at least 20.degree. C. higher than the melting point of the low molecular-weight polymers, through at least one standard cyclone at an inlet velocity between 1 and 10 m/s. The gases are then cooled to a temperature lower than the melting point of the low molecular-weight polymers, and are then passed through at least one heated cyclone at an inlet velocity between 2 and 20 m/s.

REFERENCES:
patent: 1548288 (1925-08-01), Smith
patent: 3255171 (1966-06-01), Elbracht
patent: 3454542 (1969-07-01), Cheap, Jr. et al
patent: 3627746 (1971-12-01), Beals et al.
patent: 3892550 (1975-07-01), Rils
patent: 4093100 (1978-06-01), Ford et al.
patent: 4105842 (1978-08-01), Nicco et al.
Perry-Chemical Engrs. Handbook 4th Edition pp. 20-60, 20-74.

Affiliated with

Also associated with

Rating

Process for purifying recirculating gases of condensed polymer p does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for purifying recirculating gases of condensed polymer p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for purifying recirculating gases of condensed polymer p will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2040488