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Pitch and deposition problems and handling

Learning targets
Pitch and deposition problems and handling Dissolved and colloidal substances are released from wood during mechanical refining and grinding, as well as in chemical kraft cooking. One of the most problematic groups is wood extractives, also called wood pitch. These react easily with pulping and bleaching additives and recycled pulp contaminants in addition to the
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This page has been updated 15.11.2020