Removal of hydrogenation catalyst from polymer solutions by cont

Details Removal of hydrogenation catalyst from polymer solutions by cont Removal of hydrogenation catalyst from polymer solutions by cont

1990-11-23

1992-02-18

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

528483, C08G 6391

Patent

active

050895419

ABSTRACT:
A process is provided comprising the steps of contacting a polymer solution which contains Group VIII metal hydrogenation catalyst residue with molecular oxygen, contacting the polymer solution with activated carbon, and recovering a polymer cement comprising less than 5 ppm by weight, based on the solution of Group VIII metals.

REFERENCES:
patent: 2935499 (1960-05-01), Albright et al.
patent: 3554991 (1971-01-01), Griffith
patent: 4028485 (1977-06-01), Poloso et al.
patent: 4098991 (1978-07-01), Kang
patent: 4278506 (1981-07-01), Irvin
patent: 4471099 (1984-09-01), Trepka
patent: 4595749 (1986-06-01), Hoxmeier
Hawley, 1987 Condensed Chemical Dictionary; pp. 218, 219, 1987.

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