Deresination method of wood pulp

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Treatment with particular chemical

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162 76, 162 77, 162DIG4, D21C 320

Patent

active

046734600

ABSTRACT:
An improved method for deresination of wood chips or pulp is provided. The method comprises contacting the chips or pulp with an ethoxylated alkyl phenol deresinating composition during processing to reduce the level of natural resins present therein. The improvement comprises substituting a sufonated fatty acid for part of the ethoxylated alkyl phenol while maintaining substantially the same level of deresination.

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patent: 4444621 (1984-04-01), Lindahl

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