Process Mineralogy not extracted as the dressing process wherein the metallurgical process or some elements provide a useful basis for development and utilization of mineral materials, physical properties, chemical properties and characteristics of the industrial use of fossil solid waste (solid tailings , metallurgical slag, etc.) provide comprehensive basis for its comprehensive treatment and its deep processing. The development of process mineralogy has become an important scientific and technological means to promote China's economic development.
Process mineralogy provides mineralogical evaluation of the ore's treatability by studying the minerals (elements) in the ore, mineral inlay size characteristics, and mosaic relationships, and mineralogy investigation and analysis of the mine's production process. Provide macro mineralogical basis for the ore dressing process and metallurgical process of the mine. Separation of the alumina-silica bauxite difficult than from low grade of less than 5, the extraction efficiency is low alumina, electrolytic high energy consumption; the study of the problems facing the industry of aluminum, and a surface component break properties similar dressing art The problem of separation between minerals, the relationship between mineral crystal structure, chemical composition and surface wettability, electrical properties and floatability in bauxite was established, and the molecular assembly and interfacial force of the system for aluminum mineral separation flotation were established. The theory realizes the efficient use of low-grade bauxite resources in China and expands the resources available for bauxite by more than twice. Our strategy for the primary nonferrous metals such as Cu, Zn, Ni-Ti refractory mineral resources mineralogical characteristics in common, i.e., most of isomorphism, with multi-metal ore phase, overbased metal associated gangue oxide ore more, through the system The study of the occurrence of useful metals in the refractory mineral resources, the inter-mineral mosaic relationship and the mineral surface reorganization mechanism of minerals provide a theoretical basis for the extraction of difficult mineral resources separation processes. By calculating the interplanar layer scheelite, calcite, fluorite, and three kinds of calcium-containing mineral break number of keys, and to verify the prediction from the properties of the solutions of mineral, the mineral surface by calculating the number of keys calcium point particle is not saturated and, more from A microscopic and intuitive perspective to study the surface properties of minerals and provide a theoretical basis for explaining the actual flotation behavior of minerals. Mineral Technology of Xinjiang hydroxyalkyl by silica stone type beryllium beryllium ores found OCCURRENCE Useful hydroxyalkyl beryllium mainly in the main stone silicon beryllium, beryllium and silica stone hydroxyalkyl fluorite veins present in these ores is recognized The sorting method and process conditions provide a theoretical basis, and at the same time provide the mineralogy basis and prospecting mark, expand the deposit of the deposit, and increase the current economic value of niobium minerals to five. Detecting the composition and state of the interface species before and after microbial-mineral interaction, directly analyzing the leaching process, combined with transmission electron microscopy, scanning electron microscopy, scanning tunneling microscopy, atomic force microscopy, etc., in-situ observation of the interface morphology during microbial-mineral interaction, Structural features, explore the intrinsic relationship between interface structure characteristics and microbial-mineral interactions, provide the most direct experimental data for the study of microbial-mineral multiphase interface theory, and promote the deep development of relevant theoretical research, thus revealing the regulation of biological organisms. Or metabolites induce the nature of mineral oxidative decomposition. Through genomics and proteomics techniques, the functional genes and major proteins in the sulfur oxidation system were analyzed to reveal the laws of matter and energy transfer between the cells and mineral surfaces of the Huizhou bioleaching system, and finally the sulphide ore bioleaching chemistry-biological Learning mechanism.
Through the process mineralogy analysis of industrial solid waste such as tailings and metallurgical slag, and using various mineral processing and metallurgical methods to explore, seek the possibility of resource recovery, under the premise of recycling, solid tailings and metallurgy The deep processing of the slag not only realizes the comprehensive treatment of solid waste, but also realizes economic value added. For example, the comprehensive utilization research of tailings in Xianghualing area, the comprehensive utilization of tailings in bauxite ore dressing, the mineralogical study of tungsten tailings, the acidification of Meishan steel slag and the subsequent utilization of steel slag (the slag process mineralogy) and the zinc content of Baosteel Dust mud process mineralogical research.
Combining the crystal chemistry of minerals, mineral physics, quantum mineralogy and process mineralogy, this application discipline not only selects smelting, processing, etc., but also extracts some useful elements, and promotes new mineral materials and technologies. The development provides a strong theoretical foundation. For example, the performance of the barite -based conductive powder is optimized by the doping of tin oxide by bismuth , the conductivity is enhanced by 2 to 3 times, and the added value of the mineral matrix is ​​increased by 10 times.
Every stage of mineralogical research is marked by the guidance of new technologies and new theories. This is especially true for the study of process mineralogy. The QEM-SCAN (Quantitative e valuation of Minerals by Scanning Electronic Microscopy) system determines the composition of minerals by X-ray energy spectrum and distinguishes mineral phases by backscattered electron images. The automatic identification of minerals is done by the SIP (Species Identification Program) in its software. It is a database of mineral energy spectrum components, and the energy spectrum analysis data is compared with the data in this database to identify minerals. QEMCSCAN can automatically determine the process mineralogy parameters such as dissociation degree, mineral inlay particle size and mineral relative content, and can be programmed to obtain parameters of interest to researchers.
MLA (mineral liberation analyser) mineral automatic detection system is the world's most advanced automatic quantitative analysis test system for process mineralogy parameters, developed by JK Minerals Research Center (JKMRC) of the University of Queensland, Australia. The MLA mineral automatic detection system consists of FEI Quanta200 scanning electron microscope, EDAX ray energy spectrum and MLA Suite software. It uses backscattered electron image to distinguish mineral phase and micro-area X-ray diffraction technology for multi-point analysis, and the working distance of SEM is carried out. Optimization makes the resulting backscatter image clearer and increases the accuracy of mineral signing. The MLA system can quickly and accurately determine the mineral composition and content of the sample, the state of occurrence of the element, the particle size distribution of the product, and other process mineralogical data, which can realize the rapid assessment of the rationality of the process of the concentrator and improve the production for the enterprise. Provide technical basis for process and improve resource recovery rate. At present, many large factories, mines, research institutes and universities at home and abroad are equipped with MLA.
The emergence of an automatic determination system for process mineralogy is the greatest achievement in the field of process mineralogy. The emergence of these systems not only automates the determination of the dissociation, but also greatly improves the accuracy and reproducibility of the dissociation measurement.
The in-depth basic theoretical research and the application of advanced testing methods are the basis for the development of process mineralogy. Therefore, the research of basic theory and the application of advanced testing methods should be strengthened. At the same time, it further promotes the integration of process mineralogy research with geological exploration, mining, mineral processing, metallurgy and material processing to ensure the efficient use of mineral resources. Establish an efficient digital QEMSCAN and MLA system to quickly and accurately obtain process mineralogy parameters and establish mathematical models to serve the production process.
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