Continuous moving bed reactor for manufacture of high molecular

Details Continuous moving bed reactor for manufacture of high molecular Continuous moving bed reactor for manufacture of high molecular

1981-03-17

1982-11-30

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Automatic analytical monitor and control of industrial process

23230A, 260695, 364500, 422109, 422110, 422131, 422138, 422232, 528309, G01N 2185, G05D 700, G05D 2300, B01J 808

Patent

active

043615384

ABSTRACT:
High molecular weight polyethylene terephthalate (PET) is obtained by solid state polycondensation of low molecular weight polymer granulate or chips. The present invention relates to a moving bed reactor wherein the crystallized, low molecular weight polymer granulate or chips move by gravity flow from the top to the bottom of a cylindrical, vertical reactor. By means of an automatic sampling system, samples of the polymer chips are taken from different points in the moving bed and analyzed to continuously establish the intrinsic viscosity, i.e. molecular weight, of the chips. A countercurrent flow of cold and/or heated gas and the chip residence time are then adjusted in response to the viscosity profile in the reactor in order to control and achieve a desired chip quality.

REFERENCES:
patent: 3268605 (1966-08-01), Boyd, Jr.
patent: 3878379 (1975-04-01), Moody, Jr. et al.
patent: 4106098 (1978-08-01), Moody, Jr. et al.

Affiliated with

Also associated with

Rating

Continuous moving bed reactor for manufacture of high molecular does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Continuous moving bed reactor for manufacture of high molecular , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous moving bed reactor for manufacture of high molecular will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-195430