Manganese, a key strategic resource for national economic development, plays an irreplaceable role in iron and steel smelting, electronic technology, aerospace industry, and other fields.
In the modern industrial system, gold is not only a favorite in the jewelry industry due to its brilliant luster and stable chemical properties, but also plays an irreplaceable key role in high - tech fields such as electronics, aerospace, and medicine. It is a well - deserved important strategic resource.
As the core raw material for alumina production, bauxite has long been plagued by silicon-containing impurities (such as kaolinite and illite), which restrict smelting efficiency. Sodium aluminosilicate formed during the dissolution process not only causes aluminum loss but also increases alkali consumption and production costs.
Raw kaolin ore often contains impurities such as quartz, feldspar, iron-titanium oxides, and organic matter, which directly affect its whiteness and purity. Therefore, beneficiation and processing are key to unlocking its value. At present, beneficiation and processing methods are mainly divided into physical, chemical, and physicochemical methods. Various methods have their own focuses, and flexible combination can achieve the best results.
High - purity quartz sand, as a key basic material in high - tech industries such as electronic information and photovoltaic energy, has extremely high requirements for indicators like purity and particle size distribution in its production process.
Floating is the primary mineral processing method for treating various types of gold ore, applicable to low-sulphide gold ore, high-sulphide gold ore, and polymetallic gold-silver ore. It effectively separates various gold-silver sulphide concentrates, enabling comprehensive recovery and utilization of mineral resources.
The cyanidation method uses a dilute solution of alkali metal or alkaline earth metal cyanide to leach precious metals such as gold and silver in the presence of air and then replaces the dissolved gold and silver with zinc, or adsorbs them with ion exchange resin or activated carbon.
Mozambique is one of the major zircon-titanium resource countries in the world. The deposit types are mainly laterite-type zircon-titanium sand ore and coastal-type zircon-titanium sand ore. Minerals are mostly scattered in the ore in the form of single mineral particles, with good natural dissociation, and are easy-to-sort ores
China's phosphate resources face the severe challenge of "few high-grade ores and many low-grade ores", among which the difficult-to-dress collophane accounts for over 70%. Its mineral characteristics are fine crystallization (disseminated particle size <0.01mm) and close with gangue minerals such as dolomite/quartz, making it difficult to achieve efficient separation by traditional dressing methods.
Copper ore dressing technology has achieved a leap from extensive to precise, forming a technical system of crushing and grinding innovation, intelligent flotation control, and multi-metal collaborative recovery. High-pressure roller grinding and stage grinding increase the degree of ore dissociation to 85%, AI controls flotation foam, and develops exclusive processes for different types of ores, with concentrate grades exceeding 30% and recovery rates exceeding 90%.
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