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Beneficiation method for color molybdenum lead ores

A technology of colored molybdenum lead ore and ore dressing method, which is applied in the direction of chemical instruments and methods, flotation, wet separation, etc., and can solve complex process flow, low molybdenum concentrate grade and recovery rate, activator and collector agent Large consumption and other problems, to achieve the effect of simple process, easy large-scale production, and low cost

Active Publication Date: 2014-12-17
广东省科学院资源利用与稀土开发研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, the flotation method is a sulfidation flotation method that is first activated by sodium sulfide and then collected. The consumption of activators and collectors is large, and the whole process is complicated, and the grade and recovery rate of molybdenum concentrate are low.

Method used

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  • Beneficiation method for color molybdenum lead ores
  • Beneficiation method for color molybdenum lead ores

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The colored molybdenum ore is subjected to magnetic separation with a magnetic field strength of 1.5T to remove magnetic minerals and obtain non-magnetic

[0023] sexual minerals. Add sodium carbonate according to the dosage in Table 1, the grinding concentration is 50%, and the non-magnetic minerals are ground to

[0024] -0.074mm accounts for 52%; the non-magnetic minerals after grinding are removed from the -5μm difficult-to-recover slime, and after desliming, water is added to adjust the slurry to a concentration of 33%; the following is as listed in Table 1. Slurry, roughing, and selection Operate with the dosage of scanning agent. The pH value of the slurry after pulping is 10: one roughing, three beneficiation and three sweeping, the first beneficiation concentration is 16%, the second beneficiation concentration is 12%, the third beneficiation concentration is 8%, and the sweeping The concentration is 28%, the medium ore and the sweeping ore are returned to th...

Embodiment 2

[0026] Magnetic separation is the same as in Example 1. Add sodium carbonate to the non-magnetic minerals according to the amount in Table 1, the grinding concentration is 55%, and the grinding to -0.074mm accounts for 65%; the non-magnetic minerals after grinding are removed -5μm is difficult to recover the slime, after desliming Add water to adjust the slurry to a concentration of 30%; operate according to the dosage of slurry, roughing, selecting and sweeping listed in Table 1. The pH value of the slurry after pulping is 10.6: first roughing, three times of beneficiation and three times of sweeping, the first beneficiation concentration is 15%, the second beneficiation concentration is 10%, the third beneficiation concentration is 6%, and the sweeping The concentration is 27%, the medium ore and the sweeping ore return to the previous operation in sequence to form a closed circuit; the flotation concentrate is separated by shaking table gravity separation, and the gravity m...

Embodiment 3

[0028] Magnetic separation is the same as in Example 1. Add sodium carbonate to the non-magnetic minerals according to the amount in Table 1, the grinding concentration is 60%, and the grinding to -0.074mm accounts for 55%; the non-magnetic minerals after grinding are removed -5μm is difficult to recover the slime, after desliming Add water to adjust the slurry to a concentration of 33%; operate according to the dosage of slurry, roughing, selecting and sweeping listed in Table 1. The pH value of the slurry after pulping is 12: first roughing, three times of beneficiation and three times of sweeping, the first beneficiation concentration is 18%, the second beneficiation concentration is 12%, the third beneficiation concentration is 7%, and the sweeping The concentration is 28%, the medium ore and the sweeping ore return to the previous operation in sequence to form a closed loop; the flotation concentrate is separated by shaking table gravity separation, and the gravity molybd...

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Abstract

The invention discloses a beneficiation method for color molybdenum lead ores. The beneficiation method is characterized by comprising the following steps of performing magnetic separation on the color molybdenum lead ores to obtain nonmagnetic ores; adding sodium carbonate in the nonmagnetic ores and then performing ore grinding and desliming; adding water in the deslimed nonmagnetic ores, mixing to form ore pulp, adding a regulator for adjusting the pH value of the ore pulp, and adding a collecting agent for floating to obtain flotation concentrates; performing gravity separation to separate the flotation concentrate and further obtain gravity separation molybdenum concentrates and gravity separation molybdenum defective concentrates. According to the beneficiation method disclosed by the invention, the high-selectivity collecting agent is adopted for directly floating, so that high-efficiency recovery of molybdenum ores is realized; the process flow is simple, the cost is low and the industrial and large-scale production is easily realized; a multi-product scheme is formed, beneficiation indicators are high, the grade of the gravity separation molybdenum concentrates Mo is greater than 20 percent, the concentration ratio of molybdenum is greater than 150 times, the grade of the gravity separation molybdenum defective concentrates Mo is greater than 7 percent, and the gross recovery is over 85 percent.

Description

technical field [0001] The invention relates to a beneficiation method of colored molybdenum-lead ore, in particular to a method for comprehensively recovering low-grade colored molybdenum-lead ore from severely weathered rare earth tailings. Background technique [0002] According to data reports, the basic reserves of molybdenum resources in China are 4.355 million tons, accounting for 38.40% of the world's molybdenum resources. 98% of the world's molybdenum ore products come from molybdenite (MoS 2 ). Color molybdenite (PbMoO 4 ) belongs to secondary molybdenum minerals, mainly produced in molybdenum deposits, lead-zinc deposits and oxidation zones of molybdenum deposits. Due to the complex nature of the ore and poor buoyancy, it is difficult to beneficiate, the enrichment ratio is small, and the recovery rate is low. It is considered by the industry to have no industrial mining value. However, the mine contains not only lead metal, but also molybdenum metal, which is...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03C1/02B03D1/001
Inventor 邱显扬胡真王成行李汉文汤玉和李秀娟邹坚坚叶富兴汪泰宋宝旭叶小璐李沛伦
Owner 广东省科学院资源利用与稀土开发研究所
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