茂名水洗高岭土降粘技术研究

Study on Decreasing Viscosity of Maoming Washed Kaolin

茂名水洗高岭土是我国风化型高岭土加工利用的典型,生产中存在的主要问题是粘度过大,本次研究旨在找到能有效降低其粘度的方法.作者依据浆体内摩擦力、质点分散机理、粘度影响因素等理论,利用恩氏粘度计测试各种分散剂混合使用后对矿浆粘度的影响,探讨降低茂名高岭土粘度的方法和需要确定的主要技术参数,确定了能有效降低茂名水洗高岭土粘度的方法是调节矿浆的pH值和添加合理的分散剂;作者认为最有效的分散剂是DC和STPP.

Maoming washed kaolin is a typical kaolin of our country＇s weathering kaolin. The main problem of production is high viscosity. The useful methods to decrease viscosity of Maoming washed kaolin are adjusting pH value and adding dispersant based on the slurry internal friction, particle dispersive mechanism, and influencing factor to the viscosity. The experimental result shows that more effective dispersants are DC and STPP.