杂质预处理方式对复相磷石膏水化特性的影响  

Effect of pretreatment methods of impurities on the hydration property of multiphase phosphogypsum

作　　者：孙清臣 杨敏[2] 杨成军[2] 

机构地区：[1]贵州中建建筑科研设计院有限公司,贵州贵阳550009 [2]贵州大学,贵州贵阳550006

出　　处：《中国建材科技》2014年第6期40-41,共2页China Building Materials Science & Technology

基　　金：国家自然科学基金50802019

摘　　要：通过水洗、浮选和石灰中和三种方式对磷石膏进行了预处理。将预处理磷石膏煅烧成复相磷石膏,测试不同预处理方式对复相磷石膏水化性能的影响。结果表明:石灰中和磷石膏制备的复相磷石膏水化后晶体结构较好,抗折、抗压强度分别达到4.65MPa、14.9MPa。The calcined multiphase phosphogypsum was produced with phosphogypsum, which was pretreated using the methods of washing, neutralizing with quick lime, floating. and the effectiveness, problems and feasibility of pretreatment are analyzed. The results showed that Lime treatment is best pretreatment to produce multiphase phosphogypsum, flexural and compressive strength of which was 4.65MPa and 14.9MPa separately.

关 键 词：复相石膏 水化特性 杂质 预处理 

分 类 号：TQ177.3[化学工程—硅酸盐工业]