Improved chemical for increasing flotation target of powellite ore and its preparing method
An ore and index technology, applied in the field of inorganic regulator preparation, can solve the problems of poor water glass selectivity, troublesome solid-liquid separation, high dispersion of ore pulp, etc. Effect
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[0014] The preparation method of the medicament is to add the prepared sulfuric acid solution in proportion to the purpose water glass solution prepared in proportion according to the above formula content, and keep stirring the mixed solution, and then stir after adding the sulfuric acid solution. It is sufficient that no gel is formed within a few minutes, and the prepared modified inorganic agent can be directly added to the beneficiation of rough concentrates of ores such as molybdenum.
[0015] The use method of the inorganic regulator for improving the sorting index of molybdenum-tungsten ore and the modified water glass is to directly add the mixed aqueous solution prepared in the above-mentioned way to the rough concentrate ore.
[0016] The inorganic regulator for improving the sorting index of molybdenum ore of the present invention, under a certain pH condition, the newly formed silicic acid molecules can quickly polymerize, and the initial stage of the polycondensat...
Embodiment 1
[0018] The present embodiment 1 is skarn type molybdenum sulfide ore, and its material composition is, metal mineral mainly contains molybdenite, pyrite, magnetite and hematite, a small amount of chalcopyrite, sphalerite, galena And chalcocite and bornite, etc., gangue minerals are mainly garnet, chlorite, calcite, a small amount of quartz, feldspar, siderite, epidote, actinolite, trace amounts of fluorite, tourmaline and Zircon etc. See Table 1 for comparison of ore test results using the regulator of the present invention and the traditional regulator. It can be seen that the new agent can significantly improve the flotation index of molybdenum ore after modification.
[0019] When kerosene is used as a collector and terpineol is a foaming agent, the modified water glass regulator of the present invention is added to the molybdenum concentrating operation, and the coarse concentrate is only subjected to 2 concentrating operations instead of the traditional 4-6 The closed-c...
Embodiment 2
[0022] This example 2 is a molybdenum oxide ore in a veinlet disseminated type high-temperature hydrothermal deposit, and the multi-element analysis result (wt%) is: Mo 0.34, WO 3 0.126, Cu 0.021, Pb2 34.29, Al 2 o 3 0.33, CaO 21.18, MgO 16.75, Na 2 O 0.1. The main metal minerals are molybdenite, scheelite, magnetite, pyrite, molybdenum, etc. The gangue minerals are mainly diopside, tremolite, actinolite, talc, chlorite, quartz, dolomite Stone etc. The oxidation rate of molybdenum in the ore reaches 21%, and the particle size of the useful minerals is mainly micro-grained, of which -20um accounts for 77.49%.
[0023] Adopt modified water glass inorganic modifier of the present invention to the condition experiment result of above-mentioned ore in Table 2. With the increase of the amount of modified water glass, the recovery rate of molybdenum increased significantly. The modified sodium silicate is used in the beneficiation operation, and the total consumption is cont...
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