Fergusonite ore deposits mainly in the case of granite and weathered granite rock class. Deposits dominated by brown earth mines are rare. The brown castor weathering crust deposit in a central and southern part of China is currently the world's largest rare earth industrial deposit with the largest number of rare earths. The main ingredients are mineral ore fergusonite ore, monazite, brown epidote, zircon, titanium, iron ore, rutile and quartz, feldspar, mica and other gangue minerals. Niobium and rare earth are present in minerals of different particle sizes. Figure 1 Selected process of brownstone ore weathering crust ore A Jaw Crusher is one of the main types of primary crushers in a mine or ore processing plant. The size of a jaw crusher is designated by the rectangular or square opening at the top of the jaws (feed opening). Primary jaw crushers are typically of the square opening design, and secondary jaw crushers are of the rectangular opening design. However, there are many exceptions to this general rule. Jaw Crusher Jaw Crusher,Mini Jaw Crusher,Portable Jaw Crusher,Mobile Primary Jaw Crusher Shenyang Sanland Mining Equipment Manufacture Co., Ltd. , https://www.sanlandcrusher.com
In order to effectively recover lanthanum and rare earth, the beneficiation process is carried out in two steps: in the first step, according to the distribution of lanthanum and rare earth in the various ore grades of the ore, the coarse concentrate containing Nb2O5 1.821% is selected by sieving; the second step is The coarse concentrate was selected by magnetic separation-re-election-flotation (see the selection process shown in Figure 1) to obtain a concentrate containing 37.75% of Nb2O5. In addition, 61.82% monazite concentrate containing REO and zircon concentrate containing 63% ZrO2 can be obtained during the beneficiation process. 
A Jaw Crusher reduces large size rocks or ore by placing the rock into compression. A fixed jaw, mounted in a "V" alignment is the stationary breaking surface, while the movable jaw exerts force on the rock by forcing it against the stationary plate. The space at the bottom of the "V" aligned jaw plates is the crusher product size gap, or the size of the crushed product from the jaw crusher. The rock remains in the jaws until it is small enough to pass through the gap at the bottom of the jaws.
Beneficiation technology of brown earth mine