Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With regeneration – reclamation – reuse – recycling or...
Patent
1975-02-07
1976-06-01
Bashore, S. Leon
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With regeneration, reclamation, reuse, recycling or...
162190, 210 53, D21F 182
Patent
active
039606481
ABSTRACT:
A process for treating a pulp-containing waste liquor which comprises adding a flocculating agent to the pulp-containing waste liquor and separating and removing the resulting flocculated matter, characterized in that about 1 to about 50 parts by weight, per 1000 parts by weight of the turbid components in said waste liquor, of a dicyandiamideformaldehyde resin is admixed with the waste liquor, and then aluminum sulfate is added to the mixture.
REFERENCES:
patent: 3484837 (1969-12-01), Odom et al.
patent: 3617570 (1971-11-01), Redmore
patent: 3637491 (1972-01-01), Hedrick et a.
Kuwabara Kiyoaki
Nakajima Mikio
Bashore S. Leon
Nippon Carbide Kogyo Kabushiki Kaisha
Smith William F.
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