Recovery method for polyester still bottoms

Details Recovery method for polyester still bottoms Recovery method for polyester still bottoms

1976-03-25

1977-03-22

Bernstein, Hiram H.

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

210 51, 210 53, 203 34, 203 37, 203 41, 260637R, 260525, 423617, 203 38, B01D 2101, C07C 2926

Patent

active

040135195

ABSTRACT:
A recovery method by means of which an antimony compound is separated from polyester still bottoms. If desired, the method can be employed so as to recover in usable form, the antimony compound, and the monomers polymerized to produce the polyester.

REFERENCES:
patent: 2788373 (1957-04-01), Mills
patent: 2793235 (1957-05-01), Jenkinson
patent: 2960447 (1960-11-01), Anderson
patent: 3120561 (1964-02-01), Fernand
patent: 3317519 (1967-05-01), Lazarus
patent: 3367847 (1968-02-01), Pierson
patent: 3525774 (1970-08-01), Clarke
Qualitative Chemical Analysis, Prescott 5th Ed., D. Van Nostrand Co. N.Y. 1901.

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