1) ZF synthesis of flotation agents
It is the product of kerosene as the raw material in the liquid phase catalytic oxidation under atmospheric pressure, the composition containing hydrocarbon and hydrocarbon oxides, a large proportion of both committed to 60:40,spiral chute suppliers the appearance of brownish-yellow transparent liquid, density is 0.85 g / cm3, PH value of 6 to 7. The flotation agent of both the collector and foaming properties.
2) the MZ series of flotation agents
MZ series of flotation agents - with different functional groups and has the blistering performance of coal flotation, from petrochemical by-products through processing, modification,ore processing preparation, made after the removal of smell, its main component is the C8 ~ C13 alkanes, aromatic hydrocarbons, aliphatic alcohols, derivatives of hydrocarbons and small amounts of surface active agents. The flotation agent collector, selectivity and the solubility of the flotation effect than the use of a single hydrocarbon oil.
Described above, our country who has developed the MB series flotation agent, ZF synthetic flotation agents, MZ series of flotation agents can be called a composite flotation agents. The so-called composite flotation agent refers to both the collector blistering both the performance of flotation agents. In the coal flotation process, just add a flotation agent simplifies the reagent system of the flotation process, However, due to the proportion of income and blistering of the role of component composite flotation agent, the harvesting fixation, composite flotation The agent is often a series of forms of production, in order to adapt to changes in coal and coal quality. Of coal preparation, such as China's production of MB series flotation agent and ZF synthetic flotation agent used alone, poor candidates for floating pieces of the larger changes in a variety of raw coal of mining coal preparation plant adaptability. Some coal preparation plant in the use of composite flotation agents, according to the nature of the flotation feed (especially grain size composition), and then add the other collecting agent or foaming agent, the composite flotation agent collector lack of capacity, it Add appropriate amount of
Non-polar oils, or the foaming capacity is insufficient, add the right amount of foaming agent.
3) FS-202 caught collecting agent
Raw materials by the straight-run kerosene hydrotreating, dewaxing and extraction of organic raffinate after the alkane. Containing fractions collector performance up to 84%, it can significantly reduce the amount of flotation agents.
4) of OC additives
OC additives to improve coal flotation effect of the auxiliary flotation, with currently used by all the collecting agent, foaming agent, and composite flotation agent used in conjunction with significant improvement in the oxidation of coal flotation effect.
5) Promotion of coal flotation agent
Accelerator - kind of to improve the collector and frother effects flotation agent, planktonic coal preparation auxiliaries. From the 1980s, it began developing, the composition of the surface-active organic compounds can dissolve in the light diesel oil, also with the majority, foaming agent and dissolve difficult floated coal production rate, reduce the amount of other flotation agents and to improve the coarse coal flotation. Accoal4433, Shur coal, butyl ferric hydroxide [(C4H9) 4FeOH], M10 and other series. Accelerator adjusting agent and the nature of the emulsifier in the flotation process is to promote and improve the dispersion of the hydrocarbon oil in the coal slurry to generate small droplets, increasing the opportunity of the oil droplets and coal particles contact and droplets adhere to the surface of coal particles. Enhance the adhesive strength of the oil on the coal surface, mix with other flotation agents also enhance the effect of the use of various flotation agents to improve the selectivity and flotation rate and improve the yield of clean coal.