Device and method for preparing high-purity and high-dissolvability molybdenum trioxide with industrial molybdic acid
A molybdenum trioxide and high solubility technology, applied in the direction of molybdenum oxide/molybdenum hydroxide, etc., can solve the problems of coarse particles and low purity of molybdenum trioxide, and achieve the effects of high quality, easy automatic control and environmental friendliness.
Active Publication Date: 2016-02-17
杭州中钼新材料科技有限公司
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With the continuous development of material science and application technology, the molybdenum trioxide prepared by the above method cannot be solved very well due to its coarse particles, agglomerated state and low purity of molybdenum trioxide.
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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] Such as figure 1 Shown is a device for preparing high-purity and highly soluble molybdenum trioxide with industrial molybdic acid, including a raw material bin 1, a feeder 2, a storage transition device 3, an electric heating converter 8, a pulverizer 10 and a finished product storage tank 11, The raw material bin 1 is connected to the material storage transition device 3 through the feeder 2, the material storage transition device 3 is connected to one...
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The invention discloses a device for preparing high-purity and high-dissolvability molybdenum trioxide with industrial molybdic acid. The device comprises a raw material bin, a feeding machine, a material-storage transition device, an electrical heating revolving furnace, a pulverizer and a finished product storage tank, the raw material bin is connected to the material-storage transition device through the feeding machine, the material-storage transition device is communicated to one end of the electrical heating revolving furnace, the other end of the electrical heating revolving furnace is communicated to the pulverizer, the finished product storage tank is connected to the bottom of the pulverizer, and a supplementary air inlet communicated with the interior of the pulverizer is formed in the side wall of the pulverizer. By means of the device, industrial molybdic acid raw materials are subjected to multistage heating through a multistage heating area of the electrical heating revolving furnace, molybdic acid is decomposed, decontaminated and oxidized sufficiently, and molybdenum trioxide with the purity being over 99.95% is finally obtained.
Description
technical field [0001] The invention relates to the technical field of nonferrous metal metallurgy, in particular to a device and method for preparing high-purity and high-soluble molybdenum trioxide by using industrial molybdic acid. Background technique [0002] Molybdenum trioxide is the most important intermediate in molybdenum metallurgy. Most compounds are directly or indirectly made from it. Molybdenum trioxide is widely used in catalysts, displays, sensors, motor batteries and other fields. The method commonly used now is: make fine-quality ammonium molybdate from molybdenum-containing raw materials, and heat and refine ammonium molybdate to produce high-purity molybdenum trioxide. Ammonium molybdate is made from molybdenum concentrate with a molybdenum content of more than 40% through roasting, leaching, impurity removal, concentration, acid precipitation, filtration and other processes. The yield of molybdenum is about 95%. Therefore, the amount of waste gas, wast...
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IPC IPC(8): C01G39/02
Inventor 陈方吾孙正陈镇陈洛丞
Owner 杭州中钼新材料科技有限公司