Removal of hydrogenation catalyst from polymer solutions by tria

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

1992-12-07

1994-01-25

Lipman, Bernard

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

Synthetic resins

Treating polymer containing material or treating a solid...

528499, C08F 608

Patent

active

052816966

ABSTRACT:
A process is provided comprising the steps of contacting a Group VIII metal hydrogenation catalyst residue containing polymer solution with water and a trialkyl aluminum, separating the residue from the solution and recovering a polymer solution preferably comprising less than 5 ppm by weight, based on the solution, of the hydrogenation catalyst residue metal.

REFERENCES:
patent: 3012022 (1961-12-01), Reed
patent: 4369306 (1983-01-01), Toyota et al.
patent: 5104972 (1992-04-01), Madgavkar et al.

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