全卤制碱中硫酸根及钙离子脱除技术探讨  

Discussion on the removal technology of sulfate and calcium ions in caustic soda production wholly from bittern

作　　者：徐永胜 王环 徐向平 XU Yongsheng;WANG Huan;XU Xiangping(Shaanxi Beiyuan Chemical Group Co.,Ltd.,Yulin 719319,China)

机构地区：[1]陕西北元化工集团股份有限公司,陕西榆林719319

出　　处：《氯碱工业》2022年第12期1-2,5,共3页Chlor-Alkali Industry

摘　　要：分析了全卤制碱过程中盐水中硫酸根浓度长期稳定在较低水平的原因;探讨了全卤制碱系统钙离子的脱除技术,提出采用二氧化碳降低钙离子的思路,可减少碳排放,并降低碳酸钠的消耗。The reason that the concentration of sulfate radical in brine was kept at a low level for a long time in the process of caustic soda production wholly from bittern was analyzed.The removal technology of calcium ion in caustic soda production system wholly from bittern was discussed.The idea of using carbon dioxide to reduce calcium ion was put forward,which could reduce carbon emissions and sodium carbonate consumption.

关 键 词：硫酸根 钙离子 全卤制碱 脱除技术 二氧化碳 碳减排 

分 类 号：TQ114.261[化学工程—无机化工]