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长期以来,差热分析主要是作为矿物鉴定的一种手段。但是,随着热分析仪器的日趋完善及热分析与其他测试手段的联用,逐渐显示出差热分析方法在矿物研究中应用的广阔前景。最近,在以下几方面取得了初步结果:1.研究了同种而不同成因矿物之间的微细变化,进而推论矿物形成的物理化学条件;2.矿物加热变化机理的解释和说明;3.分解反应的动力学分析;4.转换热和分解热的测定。 本文从钙-镁-铁-锰系列碳酸盐矿物差热曲线特征的研究着手,讨论了不同成因菱铁矿、镁菱铁矿差热曲线的特征。
For a long time, differential thermal analysis is mainly used as a means of mineral identification. However, with the ever-improving thermal analysis equipment and the combination of thermal analysis and other testing methods, it gradually shows the broad prospect of differential thermal analysis applied in mineral research. Recently, preliminary results have been obtained in the following aspects: 1. Studying the fine changes between the same and different genetic minerals, and then inferring the physical and chemical conditions of mineral formation; 2. Explanation and explanation of the mechanism of mineral heating changes; 3. Decomposition Kinetic analysis of reaction; 4. Determination of heat of conversion and decomposition heat. In this paper, the characteristics of the differential thermal curve of calcium-magnesium-iron-manganese series carbonate minerals are discussed, and the characteristics of the differential thermal curve of siderite with different genesis and siderite are discussed.