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Beneficiation method of low-grade copper, cobalt and nickel sulphide ore

A beneficiation method and a technology for sulfide ore, which are applied in the field of beneficiation of low-grade copper-cobalt-nickel sulfide ores, and can solve the problems of consuming flotation reagents, failing to realize beneficiation and separation, and affecting the recovery rate of target elements.

Active Publication Date: 2013-09-18
厦门紫金矿冶技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, nickel and cobalt sulfides are rich in each other, and the separation of ore dressing cannot be realized.
Using the priority flotation process, the suppressed nickel and cobalt minerals are not easy to activate when floating copper, and the recovery rate of nickel and cobalt is low
Fully mixed flotation is adopted, because the ore contains a large amount of flotable gangue, and the flotable slime is entrained in the concentrate to reduce the grade of the mixed concentrate; too much slime will seriously consume flotation agents, deteriorate the flotation process, and affect the purpose element recovery

Method used

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  • Beneficiation method of low-grade copper, cobalt and nickel sulphide ore
  • Beneficiation method of low-grade copper, cobalt and nickel sulphide ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: Put the crushed raw ore and water into a ball mill at a ratio of 1:1 for grinding operation until the grinding fineness of the grinding product is -0.074mm, accounting for 91%. Sludge dispersing flocculant sodium hexametaphosphate and slime flotation collector mixed amine (based on raw ore dry ore weight, the same below), the dosage is 900g / t and 45g / t respectively, after selective flocculation, desliming and flotation Separation, the floating slime (foam product) is merged into the final tailings, and the product in the tank is subjected to copper roughing operation. Add 1250g / t of adjusting agent lime, stir for 4 minutes, adjust the pH value of the slurry to 10-11, then add 22g / t of copper collector Z-200 and 12g / t of BK-201 in sequence, and carry out rough copper separation ; Copper rougher concentrate enters copper beneficiation first operation, and copper rougher tailings undergoes copper scavenging operation. Add lime in an amount of 225g / t, stir for 4...

Embodiment 2

[0027] Embodiment 2: according to figure 1 The embodiment of the technological process of the present invention, the test steps, process parameters, and medicament system are exactly the same as those in Example 1. The specific technical indexes of embodiment 1 and embodiment 2 of the present invention are shown in Table 1.

[0028] Shown by the implementation situation of embodiment 1 and embodiment 2 embodiment shown in table 1, adopt the inventive method, embodiment 1 contains Cu0.18%, Ni0.09%, Co0.075% in raw ore, can obtain copper grade Copper concentrate with 20.85% and 85.56% copper recovery rate, nickel-cobalt mixed concentrate with 3.55% cobalt grade and 4.25% nickel grade, 93.25% cobalt recovery rate and 93.03% nickel recovery rate; Example 2 contains Cu0.24 in the raw ore %, Ni0.12%, obtained a copper concentrate with a copper grade of 21.49% and a copper recovery rate of 85.06%, a nickel-cobalt mixed concentrate with a cobalt grade of 3.47% and a nickel grade of 4...

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Abstract

The invention relates to a beneficiation method of low-grade copper, cobalt and nickel sulphide ore. The technical scheme is adopted as follows: according to the property and characteristics of ore, a selective flocculation desliming-flotation technology is adopted, and technological advantages of differential flotation and bulk flotation are absorbed. The method is good in separation effect and stable in index, accords with property and characteristics of the ore, can effectively eliminate influences of slurry on flotation, and can recycle metal of copper, cobalt and nickel to the greatest extent.

Description

1. Technical field [0001] The invention relates to a copper-cobalt-nickel ore dressing method, in particular to a low-grade copper-cobalt-nickel sulfide ore dressing method. 2. Background technology [0002] With the extensive development and utilization of easy-to-select metal sulfide ore resources, the resources are becoming increasingly depleted. Research and development of dilute polymetallic mineral resources such as efficient and clean recovery of low-grade ores and a large number of off-surface ores, tailings and waste rocks produced during the mining process have It has become an important research topic of resource processing. [0003] Cobalt-bearing ultrabasic rock type copper-nickel sulfide polymetallic symbiotic lean ore, rich in associated valuable metals, high utilization value, but there are many types of sulfides in the ore, complex mosaic relationship, close symbiosis, mutual inclusion, and fine mosaic particle size. Difficult to separate by flotation. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D3/06B03D103/02
Inventor 鲁军李广岳丽琴廖德华吴双桥穆国红
Owner 厦门紫金矿冶技术有限公司
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