Method for pretreatment of cellulosic materials

Details Method for pretreatment of cellulosic materials Method for pretreatment of cellulosic materials

1981-07-30

1984-05-29

Smith, William F.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Using bacteria

435171, 435 68, 435 99, 435105, 435911, 435945, 162 65, C12P 1914

Patent

active

044515677

ABSTRACT:
The disclosure is concerned with a pretreatment process for removing lignin from lignocellulosic material so as to enhance enzymatic or microbial decomposability of cellulose. The pretreatment process comprises wetting lignocellulosic material with an alkaline aqueous solution in a manner that interstices between the cellulosic material remain, and exposing the wetted cellulosic material to an ozone-containing gas so as to decompose lignin in the lignocellulosic material with a very small energy consumption.

REFERENCES:
patent: 4181796 (1980-01-01), Dietrichs et al.
patent: 4196043 (1980-04-01), Singh
Tappi, vol. 54, No. 4, Apr. 1971, pp. 581-584.

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