Tungsten is a rare metal with high melting point, high hardness and corrosion resistance. It has important strategic value in modern industry, national defense, military, high-tech and other fields. In nature, there are more than 20 kinds of tungsten resources. However, only black tungsten and scheelite are worth mining. So what are the differences between black tungsten and scheelite, and what are the differences in beneficiation process?Details>>
Most of my country's scheelite deposits are skarn-type, with finer embedded grains, often associated or symbiotic with a variety of sulfide minerals such as molybdenum and bismuth. According to the different ore types, scheelite can be divided into two categories: scheelite-quartz (or silicate mineral) type and scheelite-calcite-fluorite type. The former is easier to recover, while the latter is more difficult to beneficiate due to its more complex ore properties. This is mainly because the floatability of scheelite and its symbiotic calcium-containing gangue minerals is similar, and tungsten ore is brittle. Therefore, flotation is often used as the main method for separation.Details>>
Tungsten ore is an important strategic mineral resource. Its high hardness and high temperature resistance make it widely used in steel, electronics, aerospace and other fields. In the process of tungsten ore beneficiation, gravity separation is the main process method, which separates the valuable metals and non-valuable minerals in tungsten ore by physical means. Let's learn about tungsten ore gravity separation, including gravity separation methods, gravity separation processes and common tungsten gravity separation equipment!Details>>
The main purpose of the scheelite leaching process is to try to reduce the activity of Ga2+ or WO42- in the aqueous phase, so that CaWO4 gradually migrates to the dissolution direction. There are two main types of applicable scheelite leaching processes: one is to convert Ga2+ in scheelite into calcium salt with lower solubility and enter the solid phase, and convert WO42- into soluble tungstate and enter the liquid phase; the other is to convert Ga2+ in CaWO4 into soluble calcium salt and enter the liquid phase, and convert WO42- into tungstate with lower solubility and enter the solid phase. Common leaching processes include alkaline leaching and acid leaching. Let’s learn about them together!Details>>
Wolframite is a high-density oxidized mineral. With the large-scale development, the abundant wolframite is becoming less and less, which is not enough to support the current market demand for tungsten. Therefore, fine-grained wolframite is developed, but the sludge phenomenon of this kind of wolframite is serious and it is difficult to select. There is a density difference between wolframite itself and its semi-raw minerals, so gravity separation method is often used to select wolframite, but the fine tungsten mud (<74μm particle size) has a small particle size, the specific surface area of each mineral increases, and the movement difference between particles becomes smaller. Gravity separation cannot effectively obtain high-grade wolframite. Therefore, flotation is used as the main means of recovery of fine tungsten mud.Details>>
As an important strategic resource, tungsten ore is the focus of development in my country. However, as time goes by, easy-to-select tungsten ores and rich tungsten ores have been mined and utilized in large quantities. Tungsten resources are tending to be "poor, fine, and mixed". Therefore, the development and utilization of this type of tungsten ore is imminent. Tungsten fine mud is a kind of difficult-to-select tungsten ore and a tungsten resource with mining value. For tungsten fine mud, the commonly used mineral processing processes include gravity separation, magnetic separation and flotation. The following article will focus on the tungsten fine mud gravity separation method.Details>>
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.Details>>
Wormite is mostly quartz large vein type or fine vein type tungsten deposit, which belongs to gasification high temperature hydrothermal type deposit. Wolframite is enriched in quartz in the form of coarse plate or fine vein crystals, with coarse embedded particle size, which is easy to separate. Wormite beneficiation generally adopts a combined beneficiation process mainly based on gravity separation, which is generally divided into roughing, gravity separation, concentration and fine mud treatment stages. Let's learn about these beneficiation processes and their principle processes together.Details>>
At present, more than 30 types of tungsten-containing minerals have been discovered, but only scheelite, wolframite and black and white tungsten mixed ore are worth mining. As black and wolframite are becoming increasingly depleted, poor, fine and mixed black and white tungsten mixed ore that is difficult to select has become the main target of development. So what are the methods for beneficiating black and white tungsten mixed ore? Let's learn about it together!Details>>
Tungsten, like alloys, is an indispensable raw material for aerospace, atomic energy, automotive industry, electrical industry, shipbuilding, electronics and other industries. At present, there are more than 30 kinds of tungsten-containing minerals in my country, but only wolframite and scheelite are worth mining. Nowadays, no matter what kind of tungsten, its high-grade and easy-to-select tungsten has been mined out, and the remaining is low-content and difficult-to-select tungsten. This type of tungsten is mostly polymetallic tungsten deposits. The following takes a certain difficult-to-select tungsten-containing iron polymetallic ore as an example to introduce the tungsten beneficiation process.Details>>
Flotation is one of the commonly used process methods in tungsten ore dressing plants. It can achieve a relatively ideal recovery rate for both scheelite and fine-grained wolframite. In the flotation process, the flotation reagents used for tungsten ore are also very important. The reagents are important materials to ensure the flotation reaction of minerals. Collectors are widely used. Below we mainly introduce tungsten flotation collectors. At present, the commonly used tungsten flotation collectors are anionic collectors, cationic collectors and amphoteric collectors.Details>>
Tungsten is a mineral raw material needed in the fields of aerospace, atomic energy, shipbuilding, electronics industry, chemical industry, etc. At present, more than 20 kinds of tungsten-containing minerals have been found, but only wolframite and scheelite have mining value. Among them, wolframite is brittle and easy to be crushed. Fine mud will be produced during the mining and crushing process, and the recovery rate of tungsten fine mud is very low. In order to improve the recovery rate of tungsten, it is necessary to select tungsten fine mud. Let's learn about the tungsten fine mud beneficiation process method.Details>>