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岩矿测试和分析更多关注矿石矿物中的金属离子,但其中阴离子及其存在形式的研究对于理解矿石的组成、成因和金属离子的存在状态具有重要意义。本文采用红外光谱、X射线电子能谱和热重分析等方法对新疆阿克陶县奥依塔克镇的有色矿石中非金属元素进行成分分析。研究结果表明,矿石含有H、C、O、Si等非金属元素,主要以—C—O、C═O、Si—O—C和Si—O阴离子的形式存在,并与Mg、Al、Ca等主要金属元素形成γ-Al2O3、CaO·SiO2、MgCO3、CaCO3等化合物。样品煅烧到900℃,导致样品损失水分并使其中的MgCO3发生分解,而CaCO3不分解,分解产生的MgO与Si—O结合生成MgO·SiO2,表明矿石主要含有碳酸盐和硅酸盐,是具有白云石矿石特性的混合型矿石。
Rock and mine testing and analysis pay more attention to the metal ions in ore minerals. However, the study of anion and its existing forms is of great significance for understanding the composition, genesis and the existence of metal ions. In this paper, the composition of non-metallic elements in non-ferrous ore in Oytak town of Aktau county, Xinjiang Autonomous Region was analyzed by infrared spectroscopy, X-ray photoelectron spectroscopy and thermogravimetric analysis. The results show that the ore contains non-metallic elements such as H, C, O, Si and exists mainly in the form of -C-O, C═O, Si-O-C and Si-O anions, And other major metal elements to form γ-Al2O3, CaO · SiO2, MgCO3, CaCO3 and other compounds. The sample calcined to 900 ℃, causing the sample to lose moisture and make the decomposition of MgCO3, and CaCO3 does not decompose, the decomposition of MgO and Si-O combine to form MgO · SiO2, indicating that the ore contains mainly carbonate and silicate, is Mixed ore with dolomite ores.