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首页> 外文期刊>Journal of Mining and Metallurgy, Section B: Metallurgy >Behavior of SnO2 in the tin-bearing iron concentrate during a reduction sintering process
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Behavior of SnO2 in the tin-bearing iron concentrate during a reduction sintering process

机译：还原烧结过程中含锡铁精矿中SnO2的行为

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摘要

The reserve of tin-bearing iron ores is very large in China. However, they have not been utilized sufficiently so far due to the complex embedded relationship between iron- and tin-bearing minerals. In the present work, the behavior of tin in the tin-bearing iron concentrates during a reduction sintering process (RSP) were studied using XRD, SEM-EDS, chemical valence state analysis and morphology analysis. The results show that there is about 30 mass% tin deprived from the tinbearing iron concentrates by the RSP. The tin-bearing phases remained in the finished sinters exist as the form of stannic (Sn4+), stannous (Sn2+) compounds and metallic Sn (Sno). The atmosphere in the sinter bed during the RSP is theoretically suitable for the volatilization of SnO(g). However, the gas composition and temperature of the sintering gas flow are changeable, which bring about adverse effect to the deprivation of tin.
机译：中国的含锡铁矿石储量很大。然而，由于含铁矿物质和含锡矿物质之间复杂的嵌入关系，迄今为止尚未充分利用它们。在本工作中，使用XRD，SEM-EDS，化学价态分析和形态分析研究了还原烧结过程（RSP）中锡在含锡铁精矿中的行为。结果表明，RSP从含锡铁精矿中剥夺了约30质量％的锡。残留在最终烧结物中的含锡相以锡（Sn4 +），亚锡（Sn2 +）化合物和金属锡（Sno）的形式存在。 RSP期间烧结床中的气氛理论上适合SnO（g）的挥发。然而，烧结气流的气体组成和温度是可变的，这对锡的缺乏造成不利影响。

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