Thermodynamic Evaluation of the Compounds of Gold, Silver, and Other Trace Elements Formed Upon the Combustion of Brown Coal

M. Ya. Shpirt; A. A. Lavrinenko; I. N. Kuznetsova; A. M. Gyulmaliev

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Thermodynamic Evaluation of the Compounds of Gold, Silver, and Other Trace Elements Formed Upon the Combustion of Brown Coal

机译：褐煤燃烧时形成的金，银和其他微量元素化合物的热力学评估

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The thermodynamically most probable main compounds of Ag, Au, Ge, Se, Sr, U, and ash-forming elements formed upon the combustion of brown coal, which was close in the composition of organic and mineral matter to coal from the Nazarovskoe deposit of the Kansk-Achinsk Basin, were determined. According to the experimental data, silver (in the form of AgO(g)) and gold (in the form of Au(g)) quantitatively passed into a gas phase at temperatures higher than 200 and 1179℃, respectively; selenium passed into a gas phase in the form of SeO_2(g) at t = 800-1000℃ and in the form of SeO_2(g) and SeO(g) at t ≥ 1000℃. The SeO(g) : SeO_2(g) ratio increased with temperature. Germanium formed gaseous GeO(g) and GeO_2 at t ≥ 1000℃, and the amount of the former dramatically increased with temperature.

机译：Ag，Au，Ge，Se，Sr，U和形成灰分的元素的热力学上最可能的主要化合物是褐煤燃烧时形成的，而褐煤中Nazarovskoe矿床的有机物和矿物质与煤的组成非常接近确定了Kansk-Achinsk盆地。根据实验数据，银（以AgO（g）的形式）和金（Au（g）的形式）分别在200和1179℃以上的温度下定量进入气相。硒在t = 800-1000℃时以SeO_2（g）的形式进入气相，在t≥1000℃时以SeO_2（g）和SeO（g）的形式进入气相。随着温度的升高，SeO（g）：SeO_2（g）的比例增加。锗在t≥1000℃时会形成气态GeO（g）和GeO_2，并且随着温度的升高，前者的含量急剧增加。

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《Solid Fuel Chemistry》 |2013年第5期|263-271|共9页
作者
M. Ya. Shpirt; A. A. Lavrinenko; I. N. Kuznetsova; A. M. Gyulmaliev;
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Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow, 119991 Russia;

Institute of Comprehensive Exploitation of Mineral Resources Moscow, 111020, Russia;

Institute of Comprehensive Exploitation of Mineral Resources Moscow, 111020, Russia;

Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow, 119991 Russia;

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Thermodynamic Evaluation of the Compounds of Gold, Silver, and Other Trace Elements Formed Upon the Combustion of Brown Coal

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