Extraction tube for polyamides

Details Extraction tube for polyamides Extraction tube for polyamides

1975-01-27

1977-01-11

Emery, Stephen J.

Chemistry: physical processes

Physical processes

Crystallization

23288G, 196 1452, 260 96R, 260 78L, 260 78S, 260705, 165148, B01D 1102

Patent

active

040024300

ABSTRACT:
An extraction tube for the continuous removal of low molecular weight components of polylactam granules by means of hot water by the countercurrent principle of operation, the water being fed upwardly and the granules downwardly, the tube being provided with inlets and outlets for the granules and the water and exhibiting baffles within the tube, wherein there is provided, within the tube, a heat exchanger which

REFERENCES:
patent: 2419508 (1947-04-01), Simpson
patent: 2487796 (1949-11-01), Evans
patent: 2578670 (1951-12-01), Carleton
patent: 2646392 (1953-07-01), Gerhold
patent: 2764620 (1956-09-01), Findlay
patent: 2816010 (1957-12-01), Shabaker
patent: 3423183 (1969-01-01), Goetzke

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