Method of manufacturing phenols from lignin

Details Method of manufacturing phenols from lignin Method of manufacturing phenols from lignin

1988-09-19

1990-02-13

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568762, 568806, C07C 3768

Patent

active

049008730

ABSTRACT:
Phenols such as cresol, phenol and xylenol etc. are obtained by thermal decomposition of a lignin-containing material in a state of a mixture of the lignin-containing material and a double ring aromatic hydrocarbon solvent.
Spent liquid of a solvolysis pulping process can be used as the lignin-containing raw material in the present invention for manufacturing phenols, and the phenols obtained can be utilized as the solvent in the solvolysis process resulting in cost reduction in the pulp production process by self-supplying the necessary solvent in the solvolysis process.

REFERENCES:
patent: 4420644 (1983-12-01), Huiber et al.
Sakakibara et al. "Studies on Hydrolysis of Lignin III", J. Japan Wood Res. Soc., vol. 7, pp. 19-23 (1961) (Japanese/English language).
Sakakibara et al. "Studies on Hydrolysis of Lignin IV", J. Japan Wood Res. Soc., No. 151, pp. 137-153 (1963) (Japanese/English language).
Sakakibara et al. "Studies on Hydrolysis of Lignin V", J. Japan Wood Res. Soc., No. 166, p. 171 (1964) (Japanese/English language).

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