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Activating agent for flotation of copper-nickel sulfide ores

A copper-nickel sulfide ore and activator technology, applied in flotation, solid separation, etc., can solve the problems of lower concentrate grade and lower sorting effect, achieve environmental protection, improve flotation recovery rate, grade, and raw materials Inexpensive and easy to get effects

Inactive Publication Date: 2016-06-15
LANZHOU UNIVERSITY
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  • Claims
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AI Technical Summary

Problems solved by technology

The activator used in traditional copper-nickel sulfide ore flotation is CuSO 4 [1], however CuSO 4 While activating pentlandite and chalcopyrite, it can also activate gangue minerals to a certain extent, resulting in a decrease in the separation effect and a decrease in the concentrate grade[2,3]

Method used

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  • Activating agent for flotation of copper-nickel sulfide ores
  • Activating agent for flotation of copper-nickel sulfide ores

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The experiment adopts open circuit flotation, and the flotation process is as follows: figure 1 shown. The ore used in the experiment is Jinchuan copper-nickel sulfide rich ore; the equipment used is XFD with a volume of 3L Ⅱ Single tank flotation machine.

[0029] After grinding 800 grams of ore to 80% -74μm, according to figure 1 The flow shown is dosing and operation, and 90mL of tap water is added per minute during the flotation process to keep the liquid level balanced. The experiment was divided into two groups. The first group used the mixture of copper sulfate and ammonium sulfate (mass ratio: 1:1) as the activator, and the dosage was 60g / t; the second group used copper sulfate as the activator, and the dosage was 30g / t. Flotation effects of two activators at different pH values. Collect concentrates and tailings obtained from flotation, prepare samples and analyze them. For flotation results, see figure 2 , figure 2 (1) is the relationship curve of ni...

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Abstract

The invention discloses an activating agent for flotation of copper-nickel sulfide ores.The activating agent is prepared from a component A and a component B, wherein the component A is copper salt or nickel salt, and the component B is amine, ammonia or ammonium salt.Compared with an existing activating agent for flotation of copper-nickel sulfide ores, the activating agent for flotation of the copper-nickel sulfide ores can remarkably improve the flotation and recovery rate and grade of the nickel-copper the copper-nickel sulfide ores, a good flotation effect can be obtained within the ore pulp pH value range of 7-11, the activating agent adapts to the complicated and volatile ore pulp conditions of industrial flotation, raw materials are cheap and easy to obtain, no harmful gas nor volatile substance is discharged after the activating agent is added into a flotation system, and the activating agent is green, is environmentally friendly, is harmless to the body of an operator and does not corrode flotation equipment.

Description

technical field [0001] The invention relates to the field of mineral flotation, in particular to an activator for flotation of copper-nickel sulfide ore. Background technique [0002] Nickel and copper are closely related to the national economy, and copper-nickel sulfide deposits are an important source of these two metal resources. Mining in recent decades has gradually reduced the reserves of copper-nickel sulfide ore; and it is difficult to achieve a large increase in the flotation recovery rate of copper-nickel sulfide ore by compounding existing flotation reagents. Therefore, the development of new flotation reagents for copper-nickel sulfide ore plays a very important role in improving the utilization rate of nickel-copper resources and improving the economic benefits of mineral processing enterprises. [0003] In the flotation process, the addition of activator can effectively improve the mineral flotation recovery rate. The mechanism is that the activator is selec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D103/02
CPCB03D1/018B03D2203/025
Inventor 许鹏飞徐国强王玛斗曹建胡秀琴罗永春祁黎
Owner LANZHOU UNIVERSITY
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