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The removal of chloride from solutions with various cations using magnesium-aluminum oxide

机译：使用镁铝氧化物从具有各种阳离子的溶液中去除氯离子

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摘要

We investigated the removal of chloride from various solutions (NaCl,HC1,MgCl_2,A1C1_3,CaCl_2,and NH_4C1) at 60 deg C for 3h using magnesium-aluminum oxide,Mg_(0.80)Al_(0.20)O_(1.10).prepared by the thermal decomposition of a hydrotalcite-like compound,Mg_(0.80)Al_(0.20)(OH)_2(CO_3)_(0.10) centre dot 0.78H_2O.The degree of Cl~- removal from solution increased with the amount of Mg_(0.80)Al_(0.20)O_(1.10) used.When Mg_(0.80)Al_(0.20)O_(1.10) was added to 0.5 M Cl~ solutions of HC1,MgCl2,A1C1_3,and NH_4C1 in a Mg_(0.80)Al_(0.20)oO_(1.10)/Cl~- molar ratio of 8.75,the degree of Cl removal exceeded 95%.The degree of Cl~- removal from NaCl and CaCl_2 solutions was slightly lower,approximately 80 and 90%,respectively.These results reveal that both the amount of Mg_(0.80)Al_(0.20)O_(1.10) added to chloride solution and the nature of the cations in the solution affect the efficiency of Cl~- removal from solution.
机译：我们研究了使用镁铝氧化物Mg_（0.80）Al_（0.20）O_（1.10）在60摄氏度下从各种溶液（NaCl，HCl，MgCl_2，AlCl3_，CaCl_2和NH_4C1）去除氯3小时的方法。类水滑石化合物Mg_（0.80）Al_（0.20）（OH）_2（CO_3）_（0.10）中心点0.78H_2O的热分解。随着Mg_（使用0.80）Al_（0.20）O_（1.10）。将Mg_（0.80）Al_（0.20）O_（1.10）添加到0.5M Cl〜HCl，MgCl2，A1C1_3和NH_4C1的Mg_（0.80）Al_（ 0.20）oO_（1.10）/ Cl〜-摩尔比为8.75，Cl去除率超过95％.NaCl和CaCl_2溶液中Cl〜-去除率略低，分别约为80％和90％。揭示了添加到氯化物溶液中的Mg_（0.80）Al_（0.20）O_（1.10）的量以及溶液中阳离子的性质都影响从溶液中去除Cl〜-的效率。

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