铝土矿浮选尾矿阻燃功能化研究  

Study on Making Flotation Tailings of Bauxite Flame-retardant

作　　者：卢清华[1] 胡岳华[1] 

机构地区：[1]中南大学

出　　处：《金属矿山》2009年第2期174-177,共4页Metal Mine

基　　金：国家重点基础研究发展规划(973)项目(编号:2005CB623701)

摘　　要：以河南郑州小关铝土矿浮选尾矿为原料,采用水解法制备了具有阻燃性能的氯氧化锑包覆尾矿。通过SEM、TEM、XRD、DSC-TG、氧指数仪、锥形量热仪对包覆尾矿进行了表征及阻燃性能测试。结果表明:包覆尾矿表面较粗糙,包覆层厚度不均匀;包覆物物相以SbOC l为主,间有Sb4O5C l2;包覆尾矿的热分解温度大于200℃,用于聚乙烯阻燃时,比同等条件下制备的氯氧化锑具有更好的阻燃性能;包覆尾矿还具有消烟性能。The tailing coated with antimony oxychloride that is flame retardant was produced by hydrolysis using the flotation tailings of bauxite from Xiaoguan, Zhengzhou, Henan. The characterization and flame retardancy performance of the coated tailing were made by means of scanning electronic microscopy （SEM）, transmission electron microscopy （TEM） and X-ray diffraction （ XRD ）, thermogravimetric analysis （ DSC-TG）, limiting oxygen index （ LOI ） and cone calorimeter （CONE）. The results show that the coated tailing has rough surface and non-uniform coating thickness; the coating phase is mainly composed of SbOCl and also some Sb4O5Cl2 ; the coated tailing will be thermal-decomposed at a temperature greater than 200 ℃ and has a better flame retardancy performance than SbOCl produced at the equivalent conditions when used for polyethylene flame retarding; and it also has a smoke suppression performance.

关 键 词：铝土矿浮选尾矿 包覆 阻燃 氯氧化锑 

分 类 号：TD926.4[矿业工程—选矿] TQ314.248[化学工程—高聚物工业]