Method to recycle spent ethylene glycol

Details Method to recycle spent ethylene glycol Method to recycle spent ethylene glycol

1990-09-26

1993-08-17

Manoharan, Virginia

Distillation: processes, separatory

Distilling to separate or remove only water

From organic compound

203 20, 203 25, 203 93, 203 94, 203 97, 203 98, 203DIG8, 5283087, 528496, 568871, B01D 310

Patent

active

052365581

ABSTRACT:
A method to recycle spent ethylene glycol in a continuous process for the manufacture of polyethylene terephthalate in at least one reactor vessel which includes:

REFERENCES:
patent: 3109831 (1963-11-01), Seiner
patent: 3109832 (1963-11-01), Seiner
patent: 3109833 (1963-11-01), Seiner
patent: 3109834 (1963-11-01), Seiner
patent: 3367847 (1968-02-01), Pierson
patent: 3408268 (1968-10-01), Pitts et al.
patent: 3590072 (1971-06-01), Seybourne
patent: 4110316 (1978-08-01), Edging et al.
patent: 4146729 (1979-03-01), Goodley et al.

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