无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ
无机盐工业

卤水结晶除杂工艺技术研究

  • 陈云海 ,
  • 王海燕 ,
  • 周 秀
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  • 重庆天原化工有限公司,重庆 408017
陈云海(1963— ),男,高级工程师,主任,主要研究方向为基础有机和无机化工产品新工艺、新技术的开发与推广; E-mial:907731526@qq.com。

网络出版日期: 2020-02-28

Study on process of eliminating impurities from brine by crystallization

  • Chen Yunhai ,
  • Wang Haiyan ,
  • Zhou Xiu
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  • Chongqing Tianyuan Chemical Co.,Ltd.,Chongqing 408017,China

Online published: 2020-02-28

摘要

介绍利用结晶器进行卤水除杂的一种工艺。旧工艺碳酸钠和氢氧化钠直接加入卤水除杂,容易产生碳酸钙和氢氧化镁胶体沉淀,难以过滤。采用结晶除杂工艺,减小钙镁的反应浓度,同时减小除杂剂离子的浓度,使生成杂质晶体的过饱和度得到控制。该工艺很好地控制杂质沉淀结晶的粒径,较好地解决盐泥的固液分离。实验验证了影响杂质结晶生长的因素。实验结果对比了卤水结晶除杂与传统除杂的盐泥分离效果,得到的结晶除杂盐泥抽滤速度比传统盐泥抽滤快30倍。

本文引用格式

陈云海 , 王海燕 , 周 秀 . 卤水结晶除杂工艺技术研究[J]. 无机盐工业, 2019 , 51(11) : 57 -58 . DOI: 10.11962/1006-4990.2018-0673

Abstract

a process of removing impurities from brine by using crystallizer was introduced.The traditional process is adding sodium carbonate and sodium hydroxide directly into brine for removing impurities,which is easy to produce calcium carbonate and magnesium hydroxide colloid precipitation.And the colloid precipitation is difficult to filter.The crystallization elimination process was used to reduce the reaction concentration of calcium and magnesium,and reduce the concentration of the impurity ions at the same time,so that the supersaturation of the impurity crystals was controlled.The factors affecting the crystal growth of impurities were verified.The separation effect of saltmud of eliminating impurities from brine by crystallization and traditional process was compared.Experimental results showed that the rate of filtration was 30 times faster than traditional saltmud filtration.
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