Learn more about mineral processing!

It is a difficult problem to solve the problem that difficult to sort fine minerals in mineral processing plants. Commonly, the fine minerals we defined is the slime of mineral size less than 18 μm or less than 10 μm. There are two main reasons of causing fine mineral particles: one is because some ores have super fine particles in themselves, so it must be fine grinded to dissociated valuable minerals and gangue minerals. Another one is because there are some easily muddy veins, clay materials and brittle minerals in ores, which are easily to create fine particle minerals. It is hard to avoid fine minerals during production. So that we need to analysis the reasons for fine mineral flotation and choosing responsible method for different circumstances to increase   flotation   efficiency. There are three causes for difficult and inefficient to separate fine – grained minerals in normal circumstances. •01 The surface energy of fine minerals increases obviously w...

Ball mill  is a key mineral processing equipment that used for grinding after the crushing stage. According to the different modes of ore discharging, the ball mill can be divided into  grid type ball mill   and  overflow type ball mill . But do you know what are the differences between these two kinds of ball mill? And which one should you choose? Common: 1. Similar structure The structure of the grid type ball mill and overflow type ball mill is basically same, which is mainly composed of the cylindrical shell, feeding part, discharging part, bearing part, transmission part and lubrication system. 2. Similar working process When the grid type ball mill and overflow type ball mill are working, the cylinder rotates around the horizontal axis at the specified speed. And the material falls down under the effects of the centrifugal force and friction force of grinding medium, then the grinding stage is finished, the grinding product is discharged through t...

In the mineral processing, ore  crushing  and grinding operations are essential material preparation operations before the separation process. The useful minerals and gangue minerals in most raw ores are closely linked together, and often in the form of fine particles or even fine particles. Only when they are broken up and fully dissociated, can they be enriched by existing beneficiation methods. However, the existing beneficiation methods are to some extent limited by the particle size of the material, and the particle size is too thick or too fine to achieve an effective separation effect. In the  crushing  and grinding operation, the grinding operation far exceeds the  crushing  operation in terms of production cost, capital investment and power consumption. According to statistics, the energy consumption per unit of grinding operations is up to 5 times that of  crushing  operations, accounting for about 85%. Therefore, many beneficiati...

As a precious metal resource, the gold resources are gradually decreasing, the high-grade gold mining has come to an end, and the refractory gold and the associated gold in other minerals have become the focus of gold mining and recovery.  At present, the most common  gold extraction process for this kind of goldmine  is  gold cyanidation leaching process . But  do you know the factors  affecting   gold leaching  in gold cyanidation  leaching process? In the mineral processing tests for refractory gold ores, the mineral processing test personnel usually selects variables to test, such as grinding fineness, slurry pH value, slurry temperature, agitating speed, cyanide agent dosage, slurry density, leaching time, and inflating volume. The above variables are the major factors affecting gold ore leaching. In addition, there are other factors affecting gold ore leaching, such as associated impurities in ore, amount of leaching aid, etc., ...