Recovery process for ethylene glycol and dimethylterephthalate

Details Recovery process for ethylene glycol and dimethylterephthalate Recovery process for ethylene glycol and dimethylterephthalate

1990-04-24

1991-09-24

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

562483, 562485, 568854, C07C 6760, C07C 2726

Patent

active

050515284

ABSTRACT:
A method of recovering ethylene glycol and dimethyl terephthalate from scrap polyethylene terephthalate resins by dissolving the scrap in oligomers of the same monomers and passing methanol through the solution.

REFERENCES:
patent: 3037050 (1962-05-01), Helsenberg
patent: 3321510 (1967-05-01), Lotz et al.
patent: 3488298 (1970-01-01), Barkey et al.
patent: 3701741 (1972-10-01), Meyer et al.
patent: 3776945 (1973-12-01), Ligorati
patent: 4163860 (1979-08-01), Delattre et al.
patent: 4578502 (1986-03-01), Cudmore

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