In flotation mineral slurry, activator distribution is important for flotation. Metal ion attached on the surface of mineral can improve its electric potential, ion collector and targeted mineral can ding better.
Oxidized paraffin soap uses petroleum as raw material, obtained by oxidation and saponification treatment. Its appearance is brown red or yellow powder, soluble in water, mainly used for tungsten scheelite collector.
Non-ionizing collector is a kind of auxiliary type of tungsten scheelite collector. Because it does not exist in its own solid group, it can not be formed on the surface of the mineral adsorption layer, and only physical attachment in some natural hydrophobic mineral surface, so such collector can only be used to capture graphite, molybdenum ore, sulfur and other natural floating minerals, can not be used alone to float scheelite.
Cationic collector is the active groups adsorbed on the mineral surface to make the mineral hydrophobic cationic after dissociation. It can be used as tungsten scheelite collector. Fatty amines collector is the main type.
Amphoteric collector is a heterogeneous organic compound with both anions and cations in the molecule. The common used collectors include a-amino fatty acid, alkyl phosphate (salt), alkylamine propionic acid, oxyethylene type collector.
Anionic collector is a collector that is adsorbed on the mineral surface after the dissociation of the active group of hydrophobic minerals. It is main type of tungsten scheelite collector. There are four catagories: fatty acid, sulfoacid, phosphoric acid and chelating agent.
Wolframite slime is an beneficiation issue due o its fine particle. It is ever harder to recycle finer minerals in slime. In recent years, to deal with fine particle wolframite slime effectively, there is a method to accumulate first and beneficiation second, selective flocculation flotation method is one of the newly developed wolframite slime recycle method.
Wolframite slime becomes beneficiation issue due to its fine particle. Recycle for finer minerals in slime is even harder. In recent years, to deal with fine concentrate slime effectively, there are other methods which accumulate first and beneficiate second. Carrier flotation method is one of the newly developed wolframite slime recycle method.
Tungsten concentrate is fragile mineral, during beneficiation process, wolframite slime can easily come into being, and will be neglected in tabling. There are still much tungsten element in slime. According to statistics data, tungsten metal in wolframite slime accounts for 11~14% in original mine, even higher than it. To improve recovery rate of slime is important to achieve efficiency.
Tungsten concentrate after gravity separation still has high density minerals such as tinstone, scheelite, molybdenum and bismuth. Quality and purity can not meet standard. So tungsten concentrate selection is needed.