Floatation method of whole grade ilmenite
A full-grain grade, ilmenite technology, applied in flotation, chemical instruments and methods, wet separation, etc., can solve the difficult control of ilmenite grade fluctuation, low recovery rate of ilmenite metal, and difficult operation by workers and other issues, to achieve the effect of reducing production and operation costs, low production costs, and stable product quality
Active Publication Date: 2008-12-17
TAIHE IRON MINE CHONGQING IRON & STEEL GROUP MINING
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Problems solved by technology
[0003] 1. Gravity election-flotation combined process: This process is difficult to control the fluctuation of ilmenite grade entering flotation operation, and the amount of ore feeding is unstable, the operation is difficult for workers, and the recovery rate of ilmenite metal is generally low. The metal recovery rate of iron tailings is generally only 12-14%.
[0004] 2. The current production process of Pangang Mining Co., Ltd.: the +0.10mm particle size will be separated by gravity-electric separation process; -0.10mm will be separated by a strong magnetic-flotation process, and The metal recovery rate can only reach 20-22%, and the technological process is complicated, the investment in equipment is large, and the processing cost is high; especially for electric separation, the operating environment for employees is poor, the dust is large, and the operation is difficult
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[0019] see figure 1 , the new method flow process of ilmenite sorting of the present invention is:
[0020] 1. Use the tailings after iron separation of vanadium-titanium magnetite as raw material (TFe10-13%, βTiO 2 11~13%), after a strong magnetic field (Slonφ1750), the magnetic field strength is 1300 amps, and titanium βTiO can be obtained after throwing the tail 2 17-19% crude titanium concentrate;
[0021] 2. The coarse titanium ore is subjected to one-stage closed-circuit grinding (one φ2721 grid-type ball mill, two high-frequency fine screens), and the qualified products pass through the weak magnetic iron sweep, and then enter the second-stage strong magnetic field (Slonφ1750) with a magnetic field strength of 750 amps. Obtain βTiO 2 22-24% titanium concentrate;
[0022] 3. After the reverse flotation desulfurization operation (the main agent is xanthate), the tailings of the desulfurization operation enter into the full-size floating titanium operation, and the mai...
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The invention discloses a full-grain grade ilmenite flotation method, which uses the tailings after iron selection of vanadium-titanium-magnetite as a raw material, and obtains βTiO217-19% after a section of strong magnetic tailings with a magnetic field strength of 1300 amperes Coarse titanium concentrate; then the coarse titanium ore is subjected to a closed-circuit grinding process, and qualified products pass through a weak magnetic iron sweep, and then enter the second stage with a strong magnetic field strength of 750 amps to obtain βTiO222-24% titanium concentrate; and then remove it by reverse flotation After the sulfur operation, the tailings enter the full-grain level floating titanium operation, and the metal recovery rate can reach 34-36% titanium concentrate. The invention has short process, low investment, high metal recovery rate, easy production control, and reduces production and operation costs. To create better economic benefits for enterprises.
Description
technical field [0001] The invention relates to a production process for recovering ilmenite from vanadium-titanium-magnetite iron dressing tailings, in particular to a full-grain grade ilmenite flotation method. Background technique [0002] In the prior art, the beneficiation of ilmenite mainly contains the following methods: [0003] 1. Combined re-election-flotation process: this process is difficult to control the fluctuation of ilmenite grade entering the flotation operation, and the amount of ore feeding is unstable, the operation is difficult for workers, and the recovery rate of ilmenite metal is generally low. The metal recovery rate of iron tailings is generally only 12-14%. [0004] 2. The current production process of Pangang Mining Co., Ltd.: the +0.10mm particle size will be separated by gravity-electric separation process; -0.10mm will be separated by a strong magnetic-flotation process, and The metal recovery rate can only reach 20-22%, and the technologic...
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IPC IPC(8): B03B7/00B03C1/02B03D1/00
Inventor 陈大元毛胜光龚明斌袁国红谭其尤龙茂华游家贵
Owner TAIHE IRON MINE CHONGQING IRON & STEEL GROUP MINING