相平衡,溶解度,镁硼酸盐," /> 相平衡,溶解度,镁硼酸盐,"/> phase equilibrium;solubility;Mg-borate,"/> 三元体系Mg<sub>2</sub>+//Cl<sup>- </sup>, borate —H<sub>2</sub>O在323.15 K时相平衡研究
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 ›› 2011, Vol. 43 ›› Issue (1): 15-18.

• 论文 • 上一篇    下一篇

三元体系Mg2+//Cl- , borate —H2O在323.15 K时相平衡研究

 罗炳威1, 3, 邓天龙1, 2, 李 丹1   

  1. 1.中国科学院青海盐湖研究所盐湖资源与化学重点实验室,青海西宁 8100082.天津市海洋资源与化学重点实验室天津科技大学海洋科学与工程学院;3.中国科学院研究生院)
  • 出版日期:2011-01-10 发布日期:2011-03-17

Phase equilibrium in ternary system (Mg2+//Cl- , borate —H2O) at 323.15 K

 LUO  Bing-Wei-1, 3 , DENG  Tian-Long-1, 2 , LI   Dan-1   

  1. (1.Key Laboratory of Salt Lake Resources and Chemistry,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining 810008,China;2.Tianjin Key Laboratory of Marine Resources and Chemistry,School of Marine Science and Engineering,Tianjin University of Science and Technology;3.Graduate University of Chinese Academy of Sciences)
  • Published:2011-01-10 Online:2011-03-17

摘要: 采用等温溶解平衡法研究了三元体系Mg2+//Cl- , borate —H2O在323.15 K时的溶解度及其平衡溶液的物化性质(密度、折光率、pH、电导率)。根据实验数据绘制了相应的平衡相图及其物化性质组成图。发现了镁硼酸盐的转化现象,并用n(三氧化二硼)/n(氧化镁)来表示;该体系在323.15 K时相图中有1个共饱点(水氯镁石+镁硼酸盐),2条单变量溶解度曲线(分别对应镁硼酸盐和水氯镁石的溶解度曲线),2个结晶相区(分别为水氯镁石和镁硼酸盐)。

关键词:

mso-ascii-font-family: 'Times New Roman', 相平衡')">mso-hansi-font-family: 'Times New Roman'">相平衡, 溶解度, 镁硼酸盐

Abstract: Solubilities and physicochemical properties including density,refraction,pH,and conductivity for the aqueous ternary system (Mg2+//Cl- , borate —H2O) at 323.15 K have been investigated by isothermal equilibrium method.On the basis of the experimental data,the equilibrious phase diagram and composition diagram of physicochemical properties were plotted.Conversion phenomenon of Mg-borates had been found and the amount of substance ratio of B2O3 to MgO was used to express the conversion.In the phase diagram of the ternary system,there were one invariant point (bischofite+Mg-borates),two univariant curves (corresponding to solubility curves of Mg-borates and bischofite), and two crystallization regions (bischofite and Mg-borates)at 323.15 K. 

Key words: font-family: "Times New Roman", mso-bidi-font-size: 12.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, phase equilibrium;solubility;Mg-borate')">mso-fareast-font-family: 宋体">phase equilibrium;solubility;Mg-borate