转晶剂、晶种和分散剂对α半水石膏晶体粒度、形貌的影响  

Influence of Medium Crystal Agent,Seed Crystal & Dispersing Agent on Crystal Granularity & Morphology of Alpha-hemihydrate Gypsum

作　　者：郑万荣[1] 张巨松[1] 杨洪永[2] 张添华[1] 王文军[1] 金建伟[1] 

机构地区：[1]沈阳建筑大学材料科学与工程学院,沈阳110168 [2]沈阳鹤峰商品混凝土有限公司,沈阳110032

出　　处：《非金属矿》2006年第4期1-4,共4页Non-Metallic Mines

基　　金：辽宁省教育厅基金项目(项目编号:202083064)

摘　　要：以二水石膏分析纯试剂为原料,采用加压水溶液法.探讨了复合转晶剂、晶种、分散剂对α半水石膏晶体粒度、形貌的影响。试验结果表明,添加硫酸铝与酒石酸钠钾复合转晶剂,对制备短柱状α型半水石膏晶体有利;添加晶种,可进一步增大晶体的粒度;添加分散剂,可降低长径比、缩小粒度分布的范围。Using the calcium sulfate dihydrate as raw material,the author used hydrothermal production process in pressure and discussed the influence of different component of medium crystal agent ,seed crystal and dispersing agent on the crystal granularity and morphology of alpha -hemibydrate gypsum. The result of the test indicated that the aluminium sulfate and the sodium tartrate potassium bond was advantageous to prepare the short columnar alpha-hemihydraed gypsum crystal.The seed crystal could further increase the crystal granularity , the dispersing agent could reduce the grain-size distribution scope.

关 键 词：转晶剂 晶种 分散剂 Α半水石膏 

分 类 号：TQ564.072[化学工程—炸药化工] TQ177.373