The paper briefly describes the features of bauxite resources in China and presents the status and redearch process of positive and counter floatation desilication processes and its floatation agents.

• 本文对我国铝土矿资源的特点进行了简要的描述；详细介绍了正浮选和反浮选两种浮选脱硅.；艺及其药剂的研究历史及现状；最近获得的重要成果和发展趋势。