皮库山高岭土矿是由闪长玢岩与火山岩地层的接触带经矿化与蚀变作用而成。为残斑残晶型、风化蚀变残余型的高岭土矿床,矿石因赋存有铁、硫,钛有害杂质,含铝量不高,缺乏直接应用价值。本实验通过制浆得到较稳定的悬浮体再经化学漂白处理,使AL_2O_3由27.50%提高到35.41%;Fe_2O_3含量由2.75%下降至0.83%;目然白度由原土的48.3%上升到80.6%,基本上满足了工业应用的技术要求。 The Pikushan kaolin mine is formed by the mineralization and alteration of the contact zone between diorite and volcanic strata. It is a remnant kaolin deposit with remnant spot residual crystal and weathering alteration remnant. Due to the presence of harmful impurities of iron, sulfur and titanium, the content of aluminum is not high and the value of direct application is lacking. In this experiment, the more stable suspension was obtained by chemical pulping after chemical pulping, which increased AL_2O_3 from 27.50% to 35.41% and the content of Fe_2O_3 decreased from 2.75% to 0.83%. The apparent whiteness increased from 48.3% to 80.6% %, Basically meet the technical requirements of industrial applications.