磷酸处理后苦卤脱镁母液蒸发析盐规律研究  

Study on Salting Law during the Evaporation Process of the Mother Liquor of Phosphorylation Mother Liquor from Magnesium-hydroxide Production

作　　者：刘刚[1] 王学魁[1] 袁建军[1] 沙作良[1] 

机构地区：[1]天津科技大学天津市海洋资源与化学重点实验室,天津300457

出　　处：《盐业与化工》2011年第2期28-31,共4页Jounral of Salt and Chemical Industry

基　　金：天津市科技支撑重点项目(108ZCKFSH02400)

摘　　要：针对制盐苦卤利用氨法制取Mg(OH)2的脱镁母液,加入磷酸并固液分离后的澄清液,实验研究了其蒸发析盐规律。研究证明,蒸发过程中NaCl和NH4Cl为主要析出盐类,其最终析出率分别为66.31%和33.41%,在研究的蒸发水量范围内,蒸发过程中有少量光卤石析出。The salting law was studied during the evaporation process for the mother liquor which was obtained by treating the mother liquor of brine after making salt feom seawater with the methods of that the brine first reacted with ammonia and phosphate.The results showed that NaCl and NH 4Cl are mainly crystallized during the evaporating process.In the range of the water evaporated,the recover ratio of the NaCl and NH 4Cl were 66.31% and 33.41% respectively,and some of the carnallite was also formed.

关 键 词：海水利用 析盐规律 NH4CL 

分 类 号：TS312[轻工技术与工程]