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Ore dressing method of high-muddy high-alkalinity gangue low-grade refractory copper oxide ores

A copper oxide ore, low-grade technology, applied in the direction of chemical instruments and methods, flotation, wet separation, etc., can solve the problems of unproposed solutions, high production costs, complicated process flow, etc., and achieve the best mineral processing technology Parameters, the best beneficiation index, and the effect of overcoming low recovery rate

Active Publication Date: 2018-07-10
拜城县滴水铜矿开发有限责任公司 +1
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Copper and iron minerals in high-shale high-alkaline gangue low-grade refractory copper oxide ore are closely related or are the same as iron-like copper minerals, with poor floatability, high mud content, fine particle size, and alkaline High, low grade, in the existing beneficiation methods of refractory copper oxide ore, there are common problems such as complex process flow, high production cost, large dosage of chemicals, low copper recovery rate, environmental pollution, etc.
[0004] For the technical problems existing in the above prior art description, no effective solution has been proposed yet

Method used

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  • Ore dressing method of high-muddy high-alkalinity gangue low-grade refractory copper oxide ores

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Embodiment 1

[0029] The flotation tailings of a copper oxide ore containing high muddy and highly alkaline gangue, the ore contains about 0.26% copper, and the copper minerals are mainly bornite, chalcopyrite, chalcocite, and blue chalcocite , Malachite, Chloratackite, etc., the particle size is relatively small, about 1-10μm, the degree of dissociation is low, and the intergenerational relationship is more complicated. The gangue minerals are mainly calcite, feldspar, quartz, chlorite and mica. It is a low-grade refractory copper oxide ore with high shale and high alkaline gangue.

[0030] The ore dressing recovery method of the flotation tailings comprises the following steps:

[0031] (1) Flotation tailings pulping: the concentration of flotation tailings pulp is 20-24%;

[0032] (2) Magnetic separation: the pulp is subjected to weak magnetic separation to remove strong magnetic ore minerals to obtain weak magnetic separation tailings, and the weak magnetic separation tailings are sub...

Embodiment 2

[0038] The valuable element that can be recovered in a stockpile ore is copper, with a grade of 0.4-0.6%. The copper sulfide minerals in the ore are mainly blue chalcocite and chalcocite, followed by copper blue, and a small amount of chalcopyrite and bornite. ore, natural copper, etc.; the main copper oxide minerals are azurite and malachite; other metal minerals are mainly limonite, followed by ilmenite, pyrite, rutile, and a small amount of pyrrhotite and galena Wait. Gangue minerals are mainly calcite, quartz and plagioclase, followed by muscovite, chlorite, dolomite and potassium feldspar, and a small amount of apatite and barite can also be seen. It is a low-grade refractory copper oxide ore with high shale and high alkaline gangue.

[0039] This ore recovery copper method comprises the following steps:

[0040] (1) Raw ore pulping: raw ore grinding fineness -0.074mm accounts for about 60%, and the pulp concentration is 24-28%;

[0041](2) Magnetic separation: the pul...

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Abstract

The invention relates to an ore dressing method of high-muddy high-alkalinity gangue low-grade refractory copper oxide ores, which belongs to the technical field of ore dressing. The ore dressing method comprises the following steps: making copper oxide crude ore into pulp, wherein the concentration of the ore pulp is 20 to 28 percent; uniformly stirring the ore pulp, performing low intensity magnetic separation to remove high-magnetic minerals, thus obtaining low intensity magnetic separation tailings, and performing high-gradient high intensity magnetic separation pre-concentration and tailings discarding on the low intensity magnetic separation tailings, thus obtaining high intensity magnetic separation rough concentrate and high intensity magnetic separation tailings; grinding the highintensity magnetic separation tailings, then performing oxygen-sulfur mixed floatation, thus obtaining oxygen-sulfur mixed concentrate and oxygen-sulfur mixed scavenging tailings; and performing wetleaching on the oxygen-sulfur mixed scavenging tailings. By adopting the method, ore dressing indexes of the high-muddy and high-alkalinity gangue and low-grade copper oxide ores can be favorably increased, the total recovery rate of the copper is greater than or equal to 89 percent, the adaptability is high, and the industrialized implementation is facilitated.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a mineral processing method of high-shale high-alkaline gangue and low-grade refractory copper oxide ore. Background technique [0002] Copper is an important non-ferrous metal related to the national economy and people's livelihood. It is widely used in electrical, mechanical manufacturing, energy and military industries due to its excellent properties such as electrical conductivity, thermal conductivity, tensile strength, and wear resistance. With the development of the national economy, my country's demand for copper continues to increase. There is a severe shortage of copper ore resources available for industrial mining and utilization in my country, and copper sulfide ore and easy-to-select rich ore are decreasing day by day. Therefore, it is of great significance to strengthen the research on the beneficiation and recovery of refractory copper oxide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03C1/02B03D1/00C22B3/08C22B15/00
CPCB03B7/00B03C1/02B03D1/00C22B3/08C22B15/0071Y02P10/20
Inventor 张立征薛伟易运来褚亦功李晓东陈代雄张洪博王瑞毛竞王立军
Owner 拜城县滴水铜矿开发有限责任公司
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