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首页> 外文期刊>日本海水学会志 >Evaluation of Crystal of Mg (OH) 2 Using Bittern after Removed Potassium Chloride Given by Sea Salt Manufacturing Process
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Evaluation of Crystal of Mg (OH) 2 Using Bittern after Removed Potassium Chloride Given by Sea Salt Manufacturing Process

机译：用卤水在海盐制造工艺中除去氯化钾后使用卤水的晶体晶体的评价

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摘要

This study aims to collect fundamental data for recovery of Mg resources from RPB. In the experiment, calcium hydroxide (CH) was added to RPB provided by a salt producing company to precipitate magnesium hydroxide (MH) ， and the crystals were evaluated. The CH was added to the solution as powder or supersaturated aqueous solution (milk of lime). It was confirmed that the peak intensity of MH increases as the concentration of RPB from XRD patterns decreases when milk of lime is added. When CH was added as a powder, MH was precipitated independently of the concentration of RPB, and the peak intensity of MH was constant. The shape of the products was observed by SEM. It was confirmed that when added as powder, the particle size becomes relatively larger than when added as milk of lime. The morphology was indicated to be spherical when added as milk of lime, and an irregular shape when added as powder. On the other hand, it was found that decreasing the concentration of RPB to perform the reaction increased the pH after the reaction and increased the yield. Therefore, this study is considered to be useful as fundamental data to develop a recovery process of MH from RPB.
机译：本研究旨在收集来自RPB的MG资源的基本数据。在实验中，将氢氧化钙（CH）加入到由盐生产公司提供的RPB中以沉淀氢氧化镁（MH），并评价晶体。将CH作为粉末或过饱和水溶液（石灰牛奶）加入溶液中。当加入石灰乳时，由于XRD图案的RPB浓度降低，因此MH的峰值强度增加。当加入CH作为粉末时，MH独立于RPB的浓度沉淀，MH的峰强度恒定。通过SEM观察产品的形状。确认，当添加为粉末时，粒径比添加为石灰的牛奶时粒径相对大。当添加为粉末时添加为石灰的牛奶时，表明形态是球形的，当添加为粉末时。另一方面，发现降低RPB的浓度以进行反应后的pH增加并增加产率。因此，本研究被认为是有用的基本数据，以发展来自RPB的MH的恢复过程。

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  • 来源
    《日本海水学会志》 |2019年第6期|共4页
  • 作者

    Akira Kubo; Toshiyuki Sato; Toshihiko Hiaki;

  • 作者单位

    Department of Applied Molecular Chemistry Graduate School of Industrial Technology Nihon University 1-2-1 Izumi-cho Narashino Chiba 257-8575Japan;

    Department of Applied Molecular Chemistry College of Industrial Technology Nihon University 1-2-1;

    Izumi-cho Narashino Chiba 257-8575;

    Japan;

    Department of Applied Molecular Chemistry College of Industrial Technology Nihon University 1-2-1;

    Izumi-cho Narashino Chiba 257-8575;

    Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 制盐工业;
  • 关键词

    Reactive Crystallization; Magnesium Hydroxide; Seawater;

    机译：反应结晶;氢氧化镁;海水;

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