APPARATUS TO ENHANCE FIBER DEVELOPMENT BY ADDITION OF TREATMENT AGENT DURING MECHANICAL PULPING
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United States of America Patent
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app pub date -
Sep 10, 2012
filing date -
Dec 14, 2007
priority date (Note) -
Abandoned
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Abstract
A mechanical pulping apparatus including: a pre-treatment defibration device receiving comminuted cellulosic material; a primary refiner receiving the comminuted cellulosic material discharged from the pre-treatment defibration device; a source of a biological agent; a first conduit from the source of the biological agent coupled to pre-treatment defibration device, wherein the first conduit delivers the biological agent to or immediately upstream of an inlet to the defibration device; a source of a chemical agent, and a second conduit from the source of the chemical agent coupled to primary refiner, wherein the second conduit delivers the chemical agent to the primary refiner.
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