Method of pipe line washing

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With washing

Patent

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Details

8156, 68181R, D21C 902

Patent

active

044722427

ABSTRACT:
A method of pipe line washing is described, in which raw pulp liquid is washed by clean water or washing liquid having a lower concentration than liquid chemicals in the raw pulp liquid by making use of all or a part of a pipe line.

REFERENCES:
patent: 4259150 (1981-03-01), Prough

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