Compositions for pitch control

D - Textiles – Paper – 21 – H

Patent

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9/62

D21H 21/02 (2006.01)

Patent

CA 1080409

ABSTRACT OF THE DISCLOSURE Pitch formation in paper mill pulp systems may be inhibited by treating such systems at a point prior to where pitch deposits normally occur with at least 0.5 ppm based on the weight of the pulp of a composition comprising: Ingredients % by Weight Non-ionic surfactant 50 - 20 Anionic dispersant 45 - 15 Aminophosphonate chelant 45 - 15

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