Acceleration effect of ternary carbonate on CO2 absorption rate in lithium zirconate powder
Acceleration effect of ternary carbonate on CO2 absorption rate in lithium zirconate powder
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三元碳酸盐对锆酸锂粉体CO2吸收速率的促进作用
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
Masahiro Kato
中科院分区：
文献类型：
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作者：
K. Essaki;K. Nakagawa;Masahiro Kato
研究了Li/Na/K三元碳酸盐对锆酸锂吸CO2速率的促进作用。添加碳酸钾的锆酸锂粉末在500℃左右熔融形成Li/K二元碳酸盐，明显加快了其吸收速率。实验结果表明，添加三元碳酸盐Li/Na/K(三元型锆酸锂)的锆酸锂粉末在500℃，尤其是450℃时的吸收速率比添加Li/K(二元型锆酸锂)的锆酸锂粉末更快。在500℃时，三元型锆酸锂吸收CO2的反应产额范围是二元型的2.3倍，表明反应中生成的碳酸盐完全熔化。此外，即使在450℃，这种三元型也有完全熔化的范围，这与二元型在500℃时的完全熔化范围一样长，而二元型没有这样的范围。三元碳酸酯和二元碳酸酯的加速效应的差异是由于反应产额区长度的不同造成的。
Acceleration effect of the ternary carbonate of Li/Na/K on the CO 2 -absorption rate of lithium zirconate was studied. Potassium carbonate additive in lithium zirconate powder clearly produces the absorption-rate acceleration as a result of the formation of the binary carbonate of Li/K, which melts at around 500°C. The experimental results obtained revealed that the lithium zirconate powder with the ternary carbonate of Li/Na/K (ternary-type lithium zirconate) shows a more accelerated absorption rate at 500°C, and particularly at 450°C, than does the powder with the binary carbonate of Li/K (binary-type lithium zirconate). At 500°C, the reaction-yield range of CO 2 absorption by a ternary-type lithium zirconate, which shows complete melting of the carbonate formed during the reaction, is 2.3 times as long as that by a binary-type. Furthermore, even at 450°C, this ternary type has the range of the complete melting, which is as long as that by the binary-type at 500°C, whereas the binary-type does not have the range. The difference of the acceleration effect between the ternary and the binary carbonate was attributed to the difference of the length of this reaction-yield range.