Process for making lignin gels in bead form

Details Process for making lignin gels in bead form Process for making lignin gels in bead form

1978-10-02

1979-09-18

Nielsen, Earl A.

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

Synthetic resins

Treating polymer containing material or treating a solid...

210 31C, 252426, B01D 1508, C08F 604

Patent

active

041683714

ABSTRACT:
Disclosed herein is a process for making high molecular weight lignin gel beads by emulsifying an aqueous lignin-containing solution in a water-immiscible organic solvent and reacting the lignin in said emulsion with a cross-linking agent, said reaction being catalyzed by alkali to form lignin gel beads and recovering the beads from the reaction. The lignin gel beads are useful for the fractionation and recovery of compounds by gel permeation.

REFERENCES:
patent: RE26934 (1970-08-01), Mosbach
patent: 2874545 (1959-02-01), Twining
patent: 3149058 (1964-09-01), Ball et al.
patent: 3657117 (1972-04-01), Pfitzner et al.
patent: 3759826 (1973-09-01), Felicetta et al.
patent: 4001202 (1977-01-01), Dilling et al.
patent: 4055510 (1977-10-01), Peska et al.

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