Mineral Processing Service

  The density of cassiterite (SnO2) is 6800~7000 kg/m3, and it is often symbiotic with gangue minerals (such as quartz, feldspar, muscovite, etc.) with a density of about 3000 kg/m3. Gravity beneficiatio n is the basic method of cassiterite separation. More than 85% of the world's tin concentrates come from gravity beneficiation operations. Gravity beneficiation can be used as cassiterite pre-enrichment means, and can also directly produce qualified cassiterite concentrate. In the Bronze Age, people began to use gravity beneficiation to enrich tin minerals. Since the 1960s, tin beneficiation has developed from a single gravity beneficiation to a combined process consisting of gravity beneficiation, flotation, magnetic separation, and electrical separation. Grading desliming is a necessary preparation for the cassiterite gravity beneficiation process. The desliming equipment used mainly includes water guns, various washing machines, Bartley-Maudsley turning beds, cross-flow belt chu

  Lithium is currently produced from two main different deposit types:   brine and hard rock . In mining brine deposits, brine, which is high in lithium, is pumped from below the surface. The lithium is concentrated by evaporation before the brine is sent to a processing facility for the production of lithium carbonate or lithium chloride. It can then be further processed to produce lithium hydroxide. In hard rock operations, ore is typically extracted from pegmatite deposits using conventional mining techniques and then concentrated by crushing, heavy media separation and sometimes flotation to produce concentrates. The main lithium-bearing mineral in this ore is usually spodumene, so most of these mines produce spodumene concentrate as the final product. Most of the  world's battery-grade lithium  is produced by: Mining and acid leaching   from i.e. LiAl(SiO3)2 produces a lithium sulfate solution, which is then electrochemically converted to battery-grade lithium carbonate or lit