Rare earth minerals in nature and often symbiosis with barite, calcite, apatite, silicate ore minerals. Due to the different mineralization reasons of minerals, the occurrence and content of rare earth elements in minerals are also different. Among the rare earth-bearing ores currently mined, the content of rare earth oxides is only a few percent or even lower. To meet the needs of rare earth metallurgical production, we are satisfied by processing methods, and other rare earth ores before smelting separated, enriched rare earth minerals. The content of rare earth oxides in minerals after mineralization and enrichment can reach 60% to 70%. The minerals enriched in rare earths are often referred to as rare earth concentrates, and the content of rare earth oxides in concentrates is called the rare earth grade of concentrates. Mineral processing is the process of extracting valuable minerals from raw ore by using the difference between the physical and chemical properties of the minerals in the original ore and adopting corresponding technical measures. Due to the variety of rare earth minerals and species, the mineral composition in the original ore varies, so the beneficiation process used for different mines is different. Table 1 lists some mineral processing characteristics of minerals often associated with rare earth minerals. The mineral processing techniques of the five most important rare earth minerals in the industry will be briefly introduced below based on these characteristics. Table 1 Beneficiation characteristics of major minerals (omitted) I. Beneficiation of fluorocarbon antimony -monistite mixed type ore Inner Mongolia metamorphic deposition area of Baiyun'ebo - fluorine, sodium account type Nb - rare earth - iron contains more rare earth mineral deposits, wherein the industrial value is bastnaesite and monazite, the ratio of the two (9:1 ) ～(6:4) fluctuates between. The original ore contains REO 5% to 6%. Other minerals include hematite, magnetite, rare metal ore, barite, calcite, dolomite, quartz , feldspar, etc. There are six main processes for mineral processing for the characteristics of ore: 1 priority flotation iron process; 2 mixed flotation-foam separation iron process; 3 preferential flotation fluorite -rare earth-iron process; 4 semi-priority semi-mixed flotation iron process; 5 weak magnetic-semi-priority semi-mixed flotation-re-election-flotation combined process; 6 Weak magnetic-strong magnetic-flotation combined process. Figure 1 shows the weak magnetic-strong magnetic-flotation combined process. The rare earth concentrate of this rare earth concentrate can reach more than 60%. Second, the dressing of monazite Monazite mainly exists in deposits related to alkaline rock-alkaline ultrabasic rocks, alkaline rock-carbonates, granites , weathering crusts, sand mines, etc. Because of the different mineral composition of the original ore in the monazite, the process of beneficiation used is different. The mine uses a re-election-flotation process to recover zircon while selecting monazite. 3. Beneficiation of bastnasite Bastnasite may be present in alkaline rock-alkaline ultrabasic rocks and alkaline rock-carbonate deposits. Significantly, it is an alkaline granite deposit in the Maoniuping area of ​​Suining County, Sichuan Province, China, and a carbonate-type rare earth deposit in the Mountain Pass area of ​​California, USA. The US Mountain Pass concentrator uses a re-election-flotation-magnetic separation process. China uses a re-election-flotation-magnetic separation process to recover fluorocarbon antimony ore according to the characteristics of the yak mine. Figure 3 shows the beneficiation process of the yoghurt fluorocarbon antimony ore in Sichuan. 4. Beneficiation of xenotime Phosphonium is mainly found in sand deposits in Malaysia, Thailand, Indonesia, Sri Lanka and the southern part of China. And xenotime associated mainly zircon mineral, titanium, iron, rutile, iron ore and quartz, mica, feldspar and other gangue minerals. To recover the tungsten ore and xenotime, depending on the dressing process planktonic various mineral flotation recovery process once scheelite, wolframite, xenotime (beneficiation process shown in Figure 4). 5. Beneficiation of brown earth mine The brown earth mine is mainly found in the deposits of granite and granite weathering crust. Deposits dominated by brown earth mines are rare. The main mineral components in the ore are brown gangue, monazite, brown pebbles, zircon, ilmenite, rutile and quartz, feldspar, mica and other gangue minerals. Niobium and rare earth are present in minerals of different particle sizes. 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 in Figure 5) to obtain a concentrate containing N7.725% of Nb2O5. In addition, 61.82% monazite concentrate containing REO and zircon concentrate containing 63% ZrO2 can be obtained during the beneficiation process. We have different kind of bowls, they are perfect for sering salads, fruit, desserts and snaks. 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