Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Treatment with particular chemical
Patent
1989-05-19
1990-08-28
Alvo, Steve
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Treatment with particular chemical
162 82, 162DIG3, D21C 302, D21C 320
Patent
active
049522779
ABSTRACT:
A process for making paper and linerboard, employing certain nonionic surface active agents to increase the yield of kraft pulping. The surface active agents having the structural formula ##STR1## where n is an integer from 8 to 12, and x is a positive integer from 1 to about 100, the surface active agent being present in the cooking liquor in an amount effective to increase the yield of pulp.
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Chen Cheng-I
Hancock Theresa D.
Alvo Steve
Bet PaperChem, Inc.
Ricci Alexander D.
Sluzas Alex R.
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