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1 前言根据各种非金属矿物的用途,可将这些矿物分为“建筑的”或“工业的”矿物。工业矿物可用作为填料、补充添加料及增强物料,以改善构筑物性能并减少加工的成本。工业矿物领域的进展可通过这些矿物价值增高的趋势来说明。许多公司认为,不要提供粗粒的、预先破碎的原料,而要提供便于使用的、细磨到要求的粒度而且无杂质的产品,这样作在经济上更有利。由于工业矿物的用途很多,故对这些矿物进行加工时要考虑一些重要因素,如亮度、油吸附性、平均纤维长度、松散密度、水分、微量元素含量、流动性、疏水性、亲油性、传导性及表面处理等。表1列出了用作为填料的各
1 Introduction Depending on the use of the various non-metallic minerals, these minerals can be classified as “architectural ” or “industrial ” mineral. Industrial minerals can be used as fillers, additives and reinforcements to improve structural performance and reduce processing costs. Progress in the field of industrial minerals can be illustrated by the trend toward higher values of these minerals. Many companies consider it economically advantageous not to provide coarse, pre-crushed raw materials, but to provide easy-to-use products that are finely ground to the required particle size and free of impurities. Due to the many uses of industrial minerals, important factors such as brightness, oil adsorption, average fiber length, bulk density, moisture, trace element content, flowability, hydrophobicity, lipophilicity, conductivity Sexual and surface treatment. Table 1 lists each as a filler