摘要
以磷石膏为原料制取α-半水硫酸钙。研究了3种体系对产物α-半水硫酸钙的影响及适宜的工艺参数。结果表明,在2%的盐酸体系中能获得杂质含量较少、色度较好的α-半水硫酸钙,适宜工艺参数:水热温度160℃,水热时间60 min,固液比1∶3。
The α- half water calcium sulphate is produced by using phosphogypsum as raw material and the effect on the α - half water calcium sulphate and the proper technological parameters are studied too through three kinds of systems. The result of these experiments shows that the α - half water calcium sulphate with fewer impurity and better chroma can be got in solution of 2% HCI and the proper technological parameters should be： temperature 160℃, time 60 and solid- liquid ratio 1：3.
出处
《青海大学学报（自然科学版）》
2007年第2期44-47,共4页
Journal of Qinghai University(Natural Science)
关键词
磷石膏
水热改性
除杂
α-半水硫酸钙
phosphogypsum
hydrothennal performance modification
impurity removal
α - half water calcium sulphate
