有机高分子絮凝剂在制盐工业中的应用  

Application of Organic Polymer Flocculant in Salt Industry

作　　者：王韬 吴志康 岳元媛 刘建平 刘文倩 李加兴 WANG Tao;WU Zhi-kang;YUE Yuan-yuan;LIU Jian-ping;LIU Wen-qian;LI Jia-xing(Snowsky Salt Industry Group Co.,Ltd.,Changsha 410015,China;Hunan Well Salt Engineering Technology Research Center,Changsha 410015,China;Hunan Light Industry and Salt Industry Group Technology Center Co.,Ltd.,Changsha 410015,China)

机构地区：[1]雪天盐业集团股份有限公司,湖南长沙410015 [2]湖南省井矿盐工程技术研究中心,湖南长沙410015 [3]湖南省轻工盐业集团技术中心有限公司,湖南长沙410015

出　　处：《盐科学与化工》2022年第3期5-7,11,共4页Journal of Salt Science and Chemical Industry

摘　　要：文章探讨了絮凝剂在制盐行业卤水净化中的应用必要性及适用种类,分析了有机高分子类絮凝剂聚丙烯酰胺、聚丙烯酸钠的絮凝机理,并采用浊度计对其中一种常用的有机高分子絮凝剂(聚丙烯酰胺)在卤水净化工艺中的应用效果进行了验证。研究结果显示:在卤水净化过程中添加1.0 mg/kg的聚丙烯酰胺,2000 m^(3)卤水的絮凝沉降时间在2 h左右,卤水的浊度为0.09 NTU,极大提高了卤水净化过程中的沉降速率,降低了精制卤水中Mg(OH)_(2)、CaCO_(3)固体颗粒的残留量,生产的盐产品氯化钠含量在99.6%以上。This article discussed the application necessity and applicable types of flocculants in salt industry brine purification,analyzed the flocculation mechanism of organic polymer flocculants polyacrylamide and sodium polyacrylate,and verified the application effect of the commonly used organic polymer flocculants(polyacrylamide)in brine purification process by turbidimeter.The results showed that when 1.0 mg/kg polyacrylamide is added in the brine purification process,the flocculation sedimentation time of 2000 m^(3) brine is about 2 h,and the turbidity of brine is 0.09 NTU,which greatly improved the sedimentation rate in the brine purification process,reduced the residue of Mg(OH)_(2) and CaCO_(3) solid particles in the refined brine,and the content of sodium chloride in the salt product is more than 99.6%.

关 键 词：卤水净化 聚丙烯酰胺 聚丙烯酸钠 絮凝 浊度 

分 类 号：TQ114.16[化学工程—无机化工]