Lignin preparation and method for its manufacture

Details Lignin preparation and method for its manufacture Lignin preparation and method for its manufacture

1993-02-16

1994-02-22

Kight, III, John

Chemistry: natural resins or derivatives; peptides or proteins;

Lignins or derivatives

530501, 530507, C07G 100, C08L 9700

Patent

active

052888576

ABSTRACT:
The invention relates to a lignin preparation prepared from black liquor derived from an alkali delignification process, such as the sulphate process, soda process or polysulphide process. The lignin preparation comprises mainly lignin and at least the major part of the sodium content of the lignin separated from the black liquor deriving from such processes has been replaced with calcium, therewith to provide a lignin preparation having improved properties which render the preparation more suitable for use as fuel.

REFERENCES:
patent: 1981176 (1934-11-01), Howard
patent: 2217814 (1940-10-01), Pritchard et al.
patent: 4764597 (1988-08-01), Dilling

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