Method for precipitation of sulphonated lignin from sulfide wast

Details Method for precipitation of sulphonated lignin from sulfide wast Method for precipitation of sulphonated lignin from sulfide wast

1981-10-07

1984-07-10

Phillips, Delbert R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07G 100

Patent

active

044592280

ABSTRACT:
The invention relates to a method for precipitating lignin sulphonates from sulfide wastes, in that a precipitation complex develops by the addition of polycations.

REFERENCES:
patent: 2839417 (1958-06-01), Tousignant et al.
patent: 2842534 (1958-07-01), Doughty
patent: 3697497 (1972-10-01), Falkehag
patent: 4336189 (1982-06-01), Hamala et al.
Chem. Abstr., vol. 92,(1980) 24548k.
Chem. Abstr., vol. 92,(1980) 8022d.
Chem. Abstr., vol. 95,(1981) 120505b.

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