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Selection-smelting combined technology for treating mixed ore containing molybdenum, oxygen, sulfur and copper

A technology of dressing and smelting combined and mixed ore, which is applied to the improvement of process efficiency, flotation, solid separation, etc., can solve the problems of high production cost, low recovery rate of sulfidation flotation, and interference of ore slime, so as to reduce production cost, The effect of improving resource utilization and good economic benefits

Inactive Publication Date: 2013-07-03
GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For copper oxide ores with large mud content and easy mudification, the recovery rate of traditional sulfidation flotation is low, and it is difficult to solve the problem of mud interference. The process of flotation sulfide ore and stirring leaching copper oxide ore, but the stirring leaching method has defects such as high production cost and difficult solid-liquid separation

Method used

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  • Selection-smelting combined technology for treating mixed ore containing molybdenum, oxygen, sulfur and copper
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  • Selection-smelting combined technology for treating mixed ore containing molybdenum, oxygen, sulfur and copper

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Embodiment 1

[0023] In this embodiment, the mixed ore containing molybdenum, oxygen and sulfur from Yulong in Qamdo, Tibet is used. The valuable minerals are chalcopyrite, malachite, and molybdenite; the gangue minerals are mainly quartz and clay minerals. The ore contains 1.51wt% copper and 0.025wt% molybdenum, and the copper in the copper oxide accounts for 30wt% of the total copper.

[0024] Such as figure 1 As shown in the process flow chart, using the method of the present invention, the raw ore is crushed to a particle size of 25mm or less, the pile height is 4.5m, the spraying dilute sulfuric acid concentration is 1.5mol / L, and the spraying intensity is 7.5L / (h.m 2 ), the leachate flows to the sump for cyclic spraying, and the heap is unloaded after 1.5 months of leaching. When the copper ion concentration of the leaching solution is greater than 1g / L, the copper is extracted with a mixture of organic phase extractant Lix64N and kerosene to transfer the low concentration of copper int...

Embodiment 2

[0028] The mixed ores containing molybdenum, oxygen and sulfur from Yulong in Qamdo, Tibet are used. The valuable minerals are chalcopyrite, malachite, molybdenite, and a small amount of chalcocite. The gangue minerals are mainly quartz and clay minerals. The ore contains 1.48wt% copper, 0.023wt% molybdenum, and copper in copper oxide accounts for 29wt% of the total copper.

[0029] Such as figure 1 As shown in the process flow chart, using the method of the present invention, the raw ore is crushed to a particle size of less than 30mm, the pile height is 5m, the spraying dilute sulfuric acid concentration is 1.8mol / L, and the spraying intensity is 8.5L / (h.m 2 ), the leaching liquid flows to the sump for circulating spraying. When the leaching liquid reaches a copper ion concentration of more than 1g / L, the organic phase extractant Lix64N and kerosene are used to extract copper, so that the very low copper concentration is transferred to the organic phase , Then use sulfuric aci...

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Abstract

The invention relates to a selection-smelting combined technology for treating mixed ore containing molybdenum, oxygen, sulfur and copper, wherein the copper ore in the mixed ore containing molybdenum, oxygen, sulfur and copper is copper oxide ore and copper sulphide ore, molybdenum ore is molybdenite; the selection-smelting combined technology is characterized in that the copper oxide ore in raw ores can be leached through a dump leaching process, processes of unstacking and crushing can be carried out after the dump leaching process is finished, and then the copper sulphide ore and molybdenum ore can be recovered through a select flotation process. The selection-smelting combined technology is capable of reducing the production cost, increasing the resource utilization rate and bringing good economic benefit for enterprises.

Description

Technical field [0001] The invention relates to a combined process of beneficiation and metallurgy for processing mixed ore containing molybdenum, oxygen, sulfur and copper. Background technique [0002] At present, there are two common processes for processing mixed ore containing molybdenum, oxygen, sulfur, and copper. One is to first enrich chalcopyrite and molybdenite and other sulfide ores by flotation, and then separate copper and molybdenum sulfide, and then perform flotation of oxide ore after separation of sulfide ores to obtain copper oxide concentrate. Flow chart as figure 2 Shown. The other is to carry out the flotation of copper and molybdenum sulfide first, and then carry out the separation of copper and molybdenum sulfide. After the sulfide ores are separated, the copper in the copper oxide minerals is stirred and leached. image 3 Shown. For copper oxide ore with large mud content and easy to muddy, the traditional sulfidation flotation has a low recovery rate a...

Claims

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Application Information

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IPC IPC(8): C22B3/08C22B3/26B03D1/00C22B15/00C22B34/34
CPCY02P10/20
Inventor 李文娟宋永胜周桂英
Owner GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
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