QUANTITATIVE DETERMINATION OF DIFFERENT FORMS OF CALCIUM SULFATE BY POWDER X-RAY DIFFRACTOMETRY
1. IntroductionAlmost edible salt in Japan are produced by the manufacturing method with ion exchange membrane. In this method, seawater is concentrated by using ion exchange membrane electrodialyzer, and obtained brine crystallized through crystallization process. In brine, there are relatively large amounts of impurities such as magnesium, calcium and sulfate ions which are included in seawater. In these impurities, calcium and sulfate ions separate out during crystallization process, turning into calcium sulfates.
Calcium sulfate Powder X-ray diffractometry Quantitative analysis
Akio Nakamura
Research Institute of Salt and Sea Water Science, The Salt Industry Center of Japan, 13-20,Sakawa 4-chome Odawara-shi, Kanagawa 256-0816, Japan
国际会议
9th International Symposium on Salt(第九届世界盐业大会)
北京
英文
1376-1381
2009-09-05（万方平台首次上网日期，不代表论文的发表时间）