Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With washing
Patent
1997-10-16
2000-12-19
Derrington, James
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With washing
162 72, 162DIG3, D21C 902
Patent
active
061623253
ABSTRACT:
Disclosed is a process for washing or otherwise treating paper pulp. More specifically, a multi-stage paper pulp washing process including the use of a defoamer/emulsifier mixture which is adjusted at a paper manufacturing site for each stage. The same defoamer may be used in each washing stage. However, solubility is adjusted at the paper manufacturing site by adding a small amount of emulsifier to the defoamer as appropriate for the particular stage.
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Christmas Reginald James
Gammon Charles Theodore
Raslack Roderick Donald
Derrington James
McBride Robert
Vinings Industries Inc.
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