Use of activated carbon to recover and separate chemicals produc

Details Use of activated carbon to recover and separate chemicals produc Use of activated carbon to recover and separate chemicals produc

1975-10-16

1979-06-26

Bashore, S. Leon

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Including recovery of organic by-product

162 16, 162 29, 210 40, D21C 1102

Patent

active

041592239

ABSTRACT:
Chemicals produced during pulping operations are recovered and separated by passing chemical-containing liquors from said operations through one or more units containing activated carbon. The chemicals are recovered from said units by introducing a solvent into said unit and separating the materials removed therefrom in a fractionating column.

REFERENCES:
patent: 2585491 (1952-02-01), Olsen
patent: 2585492 (1952-02-01), Olsen
patent: 2710254 (1955-06-01), Van Blaricom et al.
patent: 3223748 (1965-12-01), Bohrer
patent: 3436344 (1969-04-01), Canning et al.
Timpe, W. G. et al., "The Use of Activated Carbon for Water Renovation in Kraft Pulp and Paper Mills," Presented at Seventh TAPPI Air & Water Coference, 6/1970.

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