Delignification of lignocellulosic materials with 2-imidazolidin

Details Delignification of lignocellulosic materials with 2-imidazolidin Delignification of lignocellulosic materials with 2-imidazolidin

1981-09-30

1984-07-31

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Treatment with particular chemical

162 96, 8189, D21C 320

Patent

active

044628650

ABSTRACT:
Lignocellulosic materials are separated into usable lignin and cellulose fractions by contacting said materials with a 2-oxazolidinone (or a 2-imidazolidinone) in weight ratios of at least 1:0.1, respectively, at a temperature between 200.degree. C. and 250.degree. C.

REFERENCES:
patent: 3138610 (1964-06-01), Buc et al.
patent: 3272689 (1966-09-01), Lenz
patent: 3304312 (1967-02-01), Beachem
patent: 3876657 (1975-04-01), Aclony et al.

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