1. Cocoto Sea Concentrator (铍 series)
Keketuohai beneficiation plant located in the territory of Xinjiang Uygur Autonomous Region. 1976 put into operation, the design capacity of 750 tons / day, divided into three series are dealing with different pegmatite lithium, beryllium, tantalum and niobium ore, in which high-One series sorting beryllium low lithium ore, the design capacity of 400 tons / day, 1977 Officially put into operation in the year.
Pegmatite ore processing plant containing more noble metal beryllium, tantalum and niobium metal lithium minerals. Useful minerals spodumene, beryl, niobium, tantalum and iron ore microlite; major gangue minerals feldspar, quartz, mica, garnet in addition there are a small, hornblende, apatite and tourmaline . The ore processed in the first series contains higher cerium, but usually does not exceed 0.1% BeO.
The crushing section of the plant uses two sections and one closed circuit to crush the ore to -20 mm, then coarsely grinds it into a rotating spiral chute through a rod mill, selects the coarse concentrate to be sent to the selected workshop, and the spiral chute tailings passes through the ball mill. And the hydrocyclone is closed to 70%-0.l mm and then flotation beryl. The plant is designed to use the “tri-alkali two soap-oil” process to float beryl without Natalcene, ie use Na 2 CO 3 , NaOH and Na 2 S as regulators, oxidized paraffin soap, naphthenic soap and diesel. As a prescription for the collector , the easy-floating minerals (garnet, hornblende, apatite, etc.) are floated first and then beryl flotation and selection are carried out to produce the final concentrate of beryl. After the beryl flotation tailings are activated and stirred by NaOH, the fatty acid soap is floated to select spodumene (currently no lithium is selected). In recent years, the production process and prescriptions have changed slightly, and the number of selections has decreased. The production process in 1983 is shown in Figure 1.

Figure 1 Cocoa Sea Selection Plant No. 1 Production Process
In 1983, the No. 1 series treated ore grade -0.1% BeO, the beryl concentrate grade was 7.35% BeO, the recovery rate was 59.86%, and the average drug consumption of one ton of raw ore was 6.4 kg.
Second, foreign selection of mining plants
The main raw material for extracting germanium and its compounds abroad is hydroxysilicon vermiculite, followed by beryl.
The first raw material, hydroxyapatite, is extracted from its raw ore directly by extraction in the United States, so there is no concentrating plant.
The second type of raw material beryl has been used as a by-product in the production of feldspar and quartz in foreign countries for a long time. Recent literature reports that the major producers of sapite concentrates in the Soviet Union and Brazil have achieved industrial flotation of beryl, but the details of the scale and process of the selection are less mentioned.
Wollastonite may soon become the third industrial mineral raw material for extracting niobium and its compounds. Tol Lake in northwestern Canada has abundant resources of silicon vermiculite. The preliminary test has obtained high grade wollastonite concentrate, recovery rate. Higher, currently preparing for the construction of the stone.

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