| 摘要 |
<p>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</p> |
