Process for producing polysulphide by means of oxidizing sulphid

Details Process for producing polysulphide by means of oxidizing sulphid Process for producing polysulphide by means of oxidizing sulphid

1998-01-21

1999-11-30

Nguyen, Dean T.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With regeneration, reclamation, reuse, recycling or...

162 301, 162 3011, 162 38, 162 82, 423562, D21C 1112

Patent

active

059936010

ABSTRACT:
The invention relates to a process for producing polysulphide by means of oxidizing sulphide in spent liquors from kraft cellulose cooking. The process is characterized in that green liquor is firstly enriched in sulphide and then oxidized.

REFERENCES:
patent: 5082526 (1992-01-01), Dorris

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