非金属矿物的改型改性及其在环境保护中的应用

MODIFICATION OF NONMETALLIC MINERALS FOR USE IN ENVIRONMENTAL PROTECTION

沸石、粘土矿物及石棉都是重要的非金属矿物。通过物理的（如热处理）和化学的（包括无机及有机化学）改型改性，可以明显地提高沸石及粘土矿物的离子交换性、吸附性及催化性等，可用作环境中无机和有机毒物的离子交换剂、吸附剂或燃烧催化剂。对石棉的表面改性则可以抑制或改变石棉的有害生理活性，减少石棉生产对人体及环境的危害。

Zeolites,clay minerals, and asbestos are important nonmetallic minerals.Thermal treatment and inorganic and organic chemical modification can remarkably improve properties of zeolites and clay minerals for use in canon--exchange,adsorption,and catalyst.These modified properties are very effective in removing inorganic or organic pollutants from environment. On the other hand,modification of asbestos surfaces can change or inhibit the unhealthy effects of asbestos, and thus reduce harm to environment from its processing.