Mineral processing knowledge
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Interpretation of the process flow of primary ilmenite ore dressing
The raw materials used in the titanium industry are mainly ilmenite (accounting for 85~90%) and rutile (accounting for 5~10%), and ilmenite is produced in placer and vanadium-titanium magnetite. Vanadium-titanium magnetite is an important mineral resource for obtaining titanium in my country. Below we take a certain vanadium-titanium magnetite as an example to introduce its ore dressing process plan....
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What are the flotation processes for zinc oxide?
Zinc oxide is a secondary mineral of zinc, and its ore types are mostly in the form of smithsonite, hemimorphite, willemite, hydrozincite, and red zincite. For this kind of zinc oxide, flotation is often used for mineral processing. Its flotation processes include sulfide-amine salt flotation, sulfide-xanthate flotation, fatty acid collector flotation, flocculation flotation, long carbon chain CH-based and SH-based collector flotation, etc. ...
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5 Methods for Flake Graphite Ore Dressing
Flake graphite can be divided into two categories according to its crystal form: cryptocrystalline (earthy) and flake graphite. Common flake graphite usually presents natural phaneritic, has a layered structure, and is shaped like fish scales, belonging to the hexagonal crystal system. It mainly exists in geological environments such as gneiss and schist, and is often blue-gray in color. After weathering, it may appear yellow-brown or gray-white. Its grade is average, and it may be accompanied by a variety of paragenetic minerals, such as feldspar, quartz, biotite, pyrite, pyrrhotite, and rutile. According to different ore deposit characteristics and ore properties, methods for purifying flake graphite include flotation, alkali acid method, hydrofluoric acid method, chlorination roasting method, and high temperature method....
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Oxidation pretreatment process of sulfide gold
For the above-mentioned minerals that cannot be cyanided for gold extraction after grinding, the elements on the mineral lattice nodes need to be converted from reduced state to oxidized state to destroy the sulfide ore lattice that wraps the gold, forcing the gold to be exposed from the carrier mineral, and then cyanidation gold extraction treatment is carried out. This method of oxidizing and decomposing the carrier gold mineral before cyanidation gold leaching to increase the degree of gold exposure is called oxidation pretreatment....
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Different types of tungsten ore dressing process schemes
Tungsten resources are mostly obtained from wolframite, scheelite and mixed black and white tungsten ores. However, due to long-term development, easy-to-select tungsten and rich tungsten ores have been almost exhausted, but my country's demand for tungsten resources has only increased. Therefore, only associated tungsten deposits or difficult-to-select tungsten deposits can be developed to obtain tungsten resources....
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How to extract lithium from spodumene and lepidolite?
In the process of lithium resource development and utilization, the processing and purification of lithium-containing minerals such as spodumene and lepidolite have long been carried out. At present, among the more than 130 known lithium-containing minerals, the processing and purification of lithium-containing minerals such as spodumene and lepidolite has long been carried out, and only a few silicate and phosphate minerals have economic value. This article takes spodumene (chain silicate) and lepidolite (layered silicate) as examples to introduce their lithium extraction technology....
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