Demethylated lignin and process

Details Demethylated lignin and process Demethylated lignin and process

1979-08-20

1981-02-10

Phillips, Delbert R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07G 3900

Patent

active

042500885

ABSTRACT:
Lignin compounds are demethylated without degradation of the lignin polymer backbone to provide a highly reactive lignin and methyl chloride as products. The reaction is applicable to Kraft lignin or lignosulfonates derived from spent sulfite liquor. Demethylation is accomplished by reacting the lignin material at an elevated temperature with an amine hydrohalide salt.

REFERENCES:
Brauns, "The Chemistry of Lignin", (1952) 432-434.

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