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In this paper, we have studied on the behaviour of borate during dilution of different boron-containing concentrated brines in which the boron-concentrations are lower than that brine used in the article reported and obtained some interesting results which have never found in any reference before. 相似文献
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盐卤硼酸盐化学——Ⅺ.不同含硼浓缩盐卤的稀释实验 总被引:2,自引:2,他引:2
前文[1]报道高含硼浓缩盐卤加水稀释过程中硼酸盐的行为。考虑到青海省柴达木盆地大柴旦盐湖卤水日晒蒸发到钾盐析出阶段,浓缩卤水中含1.87%MgB_4O_7,蒸发到水氯镁石开始析出,浓缩卤水中含2.95%MgB_4O_7。本文报道,这两种不同含硼浓缩卤水按文献[1]中实验步骤进行加水稀释,室温放置过程中析出硼酸镁盐的某些不同结果。 相似文献
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对氯柱硼镁石(2MgO•2B2O3•MgCl2•14H2O)在4.5%H3BO3水溶液40 ℃的溶解及相转化过程进行了动力学研究.对不同时间取出的液相的化学分析及不同阶段分离固相的鉴定结果表明,该复盐在溶解阶段出现与前所报导不同的同步溶解,最终产物是库水硼镁石(2MgO•3B2O3•15H2O).提出了库水硼镁石的形成条件和溶解及相转化动力学机理,利用单纯形优化法配合Runge-Kutta微分方程组数值解法对实验数据进行处理,给出了转化结晶动力学方程. 相似文献
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An attempt has been made in the present work to prepare poly(vinyl borate),PVBO and its calcium derivative by homogeneous esterification of PVA with boric acid in non-aqueous medium in the presence of a catalyst ethyl nitrate dimethyl sulfoxide.The compounds were characterized by IR and ~1H-NMR spectra.Conductivities were determined from 30℃to 90℃in solid state within a frequency range of 42 Hz to 100 kHz.The compounds so formed showed ionic conductivity and their conductivities were dependent on frequen... 相似文献