MgO活性及其在MgCl2溶液中溶度的研究

Study on the Activity and Dissolution of MgO in MgCl2 Solution

中文关键词:  MgO活性 溶解度 硼酸镁 过饱和溶液 氧化镁 煅烧温度

英文关键词:Activity MgO,Solubility,Supersaturated solution,Mg-borate

中文摘要:

      测定了不同MgO的碘值和比表面积，给出了MgO活性与煅烧温度之间的关系式。研究了MgO活性、煅烧温度、溶解温度和MgCl2浓度等对MgO溶解的影响。并讨论了活性MgO在含不同硼碱比[n(B2O3):n(MgO)=n]的MgCl2溶液中形成硼酸镁盐过饱和溶液与增溶的MgO关系。

英文摘要:

      In this paper,the activities(amount of iodine and specific surface) of MgO were determined. The activety MgO in relative with calcinating temperature was presented. The influences of the MgO activity,the calcinating temperature, the dissolution temperature and the concentration of MgCl 2 on the solubility of MgO were discussed.Also covered was the relation between various B 2O 3 to MgO ratios in the MgCl 2 solution and the solubility augmentation of MgO in the supersaturated magnesium borate solution.