thenardite

The Study on the Technological Process of Potassium Sulfate Production from Thenardite and

利用盐湖钾、镁资源和天然无水芒硝为原料制取硫酸钾的工艺路线研究

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Through the testing and analysis, it is found that thenardite salt rock is a kind of soft rock, the strength of which is low and the deformation is distinct.

通过试验，发现无水芒硝岩盐是一种软岩，强度较低，变形较大。

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So, it can be concluded that solution pervasion has great effect on mechanical characteristics of calcium thenardite rock salt.

因此，溶解渗透对钙芒硝盐岩的力学特性有着极大的影响。

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The evaporating experimental results show that, hydromagnesite is first separated with the lake-water being concentrated, and then halite, thenardite, bloedite, picromerite, epsomite, sylvite and carnallite precipitated successively.

蒸发实验的结果表明：首先析出水菱镁矿，随着湖水继续浓缩进一步析出石盐、无水芒硝、白钠镁矾、软钾镁矾、泻利盐、钾石盐和光卤石。

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The luminescence intensity and chromaticity of the Eu3+ reached its highest in case of mixing Gd3+, 21mol%, into Thenardite ( Na2SO4: Eu) crystal lattices, and Concentration quenching effect ultimately occurred.

当Gd3+以21mol%掺入到无水芒硝（Na2SO4：Eu）晶格中时，可以达到Eu3+的最强发光强度和最佳色纯度，最终出现浓度淬灭现象。

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With variation of shearing angles, the strength curve equation of thenardite and calcium thenardite salt rocks are deduced.

另外，由变角剪切试验结果分别获得了无水芒硝和钙质芒硝岩盐的强度曲线方程。

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Production of Potassium Sulfate from Potassium Chloride and Thenardite by Metathesis Conversion Method

氯化钾与无水芒硝复分解转化法制取硫酸钾方法的探讨

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We studied the luminescence properties of phosphors with varying concentration of Gadolinium in sample powder, yet with the intensity of Natural thenardite and Eu in constant.

研究了天然无水芒硝与铕浓度不变的情况下钆浓度的变化对发光特性的影响。

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Moreover, the uniaxial compressive deformation and damage of thenardite are different from other rocks during four deformation phases.

在单轴压缩变形破坏过程中，具有与普通岩石试件不同的四阶段性特征。

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The crystal conversion of two crystals of mirabilite and thenardite of sodium sulfate is the main reason resulted in the physical crystallization attack on concrete under relative humidity change condition.

揭示了相对湿度变化下，硫酸钠两种主要结晶产物之间的晶型转变是造成混凝土盐结晶物理侵蚀的主要原因。

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In fouling deposits Na and S distribution trends are the same, which exists in form of thenardite mainly. The distribution of Na and Fe are similar in some samples of slagging deposits. Development Direction and Production Present Situation of Thenardite at Home

积灰沉积物中Na与S的分布规律相似，主要以无水芒硝形式存在，部分结渣沉积物中的Na与Fe具有相似的分布。我国无水芒硝生产现状及其发展方向

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