Method for the delignification of lignocellulosic material by ad

Details Method for the delignification of lignocellulosic material by ad Method for the delignification of lignocellulosic material by ad

1997-12-19

2000-12-05

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Treatment with particular chemical

552269, D21C 320

Patent

active

06156155&

ABSTRACT:
The present invention provides a method for the synthesis of substituted octahydroanthraquinones and substituted anthraquinones which are effective for pulping of lignocellulosics.

REFERENCES:
patent: 1303168 (1919-05-01), Conover et al.
patent: 3873580 (1975-03-01), Rennie
patent: 4012280 (1977-03-01), Holton
patent: 4146559 (1979-03-01), Bock et al.
patent: 4826567 (1989-05-01), Gratzl
patent: 5002634 (1991-03-01), Dimmel et al.
patent: 5049236 (1991-09-01), Dimmel et al.
Sarkanen et al., "Lignins-Occurrence, Formation, Structure and Reactions", N.Y., Wiley & Sons, 1971, pp. 43-94.
Butz et al., "Organic Reactions", vol. V; N.Y., Wiley & Sons, 1949, p. 166.

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