摘要
以海水淡化后浓海水为原料完成蒸发浓缩析盐规律研究,实验结果表明:浓海水蒸发浓缩硫酸钙的析出点为12.21°Be(′d=1.091 3g/cm3);氯化钠析出点为25.78°Be′(d=1.216 0 g/cm3),浓海水蒸发浓缩过程组成变化规律与海水浓缩过程组成变化规律完全一致。浓海水日晒制盐是完全可行的。
The paper studied the crystallization law of salts of the condensed seawater after desalination based on evaporation and condensation experiments. The results show that when the concentration of the condensed seawater is 12.21 °Be′（g/cm^3 ） , the crystallization of calcium sulphate begins to form. And also, when the concentration of the condensed seawater is 25.78 °Be′ （g/cm^3） , the crystallization of sodium chloride begins to form. This conclusion is in full accord with the crystallization law of salts of seawater, which indicated that the condensed seawater after desalination can be used to produce solar salt.
出处
《盐业与化工》
CAS
2010年第2期3-7,共5页
Jounral of Salt and Chemical Industry
基金
天津科技大学引进人才科研启动基金资助项目(20090409)
天津市科技重点攻关项目(043185211-3)
关键词
浓海水
蒸发浓缩
析盐规律
氯化钠
硫酸钙
concentrated seawater
evaporation and concentration
crystallization law of salts
sodium chloride
calcium sulphate
