Beneficiation method for high-sulfur magnetic iron ore of low-grade copper

A technology of magnetite ore and mineral processing methods, applied in chemical instruments and methods, flotation, wet separation, etc., can solve problems such as the lack of perfect copper recovery methods

Pending Publication Date: 2021-09-07
安徽马钢罗河矿业有限责任公司 +2
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Problems solved by technology

[0010] Aiming at the problem that the copper-containing high-sulfur magnetite ore with a copper grade between 0.02% and 0.05% has no perfect method for recovering the copper in the prior art, the present invention provides a low-grade copper high-sulfur magnetite ore The mineral processing method is especially suitable for copper-containing high-sulfur magnetite ore with copper grade between 0.02% and 0.05%, and can obtain copper concentrate with high copper grade and high enrichment ratio

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  • Beneficiation method for high-sulfur magnetic iron ore of low-grade copper
  • Beneficiation method for high-sulfur magnetic iron ore of low-grade copper

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Embodiment

[0043] At present, for raw ore with extremely low copper content, it is extremely difficult to comprehensively utilize copper, and it is difficult to generate economic value if the cost is too high. Therefore, the existing beneficiation method is difficult to recycle the copper of the high-sulfur magnetite ore with extremely low copper grade, and the copper grade, enrichment ratio and recovery rate of the final copper concentrate cannot meet the requirements. That is, the cost of actual production is relatively high, and insufficient economic value can be produced. To solve this problem, the present invention provides a beneficiation method capable of obtaining qualified copper concentrate with high economic value. This method is mainly aimed at high-sulfur magnetite ore with a copper grade of 0.02% to 0.05%, and is especially suitable for iron grades of 30%-40%, high-sulfur magnetite ore with a sulfur grade of 3.0%-6.0% and a copper grade of 0.02%-0.05%. The beneficiation me...

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Abstract

The invention discloses a beneficiation method for high-sulfur magnetic iron ore of low-grade copper, and belongs to the field of beneficiation. The method comprises the steps of raw ore grading, copper-sulfur bulk flotation, copper-sulfur separation-roughing-refining-sweeping and copper-sulfur separation and multiple-time concentration. According to the method, reasonable process design is conducted on bulk flotation and copper-sulfur separation of the beneficiation process, the optimal chemical adding ratio is screened out, the cost of all chemicals is effectively reduced while the beneficiation effect is guaranteed, the method is particularly suitable for copper-containing high-sulfur magnetic iron ore with the copper grade ranging from 0.02% to 0.05%, and copper concentrate with the high copper grade and the high enrichment ratio can be obtained.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and more specifically relates to a mineral processing method for copper-containing high-sulfur magnetite ore with a copper grade between 0.02% and 0.05%. Background technique [0002] At present, the commonly used beneficiation process for high-sulfur magnetite ore generally includes two types of stage grinding-first magnetic floatation and stage grinding-first float then magnetic. Both processes will obtain two products: iron concentrate and sulfur concentrate. Among them, the associated copper in high-sulfur magnetite ore is generally enriched in sulfur concentrate products. At present, in the production practice of comprehensive recovery of copper in sulfur concentrate, the copper content in high-sulfur magnetite raw ore is basically above 0.05%. The copper grade in the obtained sulfur concentrate is generally above 0.6%. [0003] For example, a beneficiation process of Lujiang Lon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B9/00B03D1/018B03D101/02B03D101/06B03D103/02
CPCB03B7/00B03B9/00B03D1/018B03D2201/02B03D2201/06B03D2203/02
Inventor 丁开振王小玉刘军许如亭王宏喜郏威胡炳胜程从文杨昌龙巩飞虎
Owner 安徽马钢罗河矿业有限责任公司
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