Phodochrosite leaching technology

A technology of ore and rhodochrosite, applied in the field of leaching process of rhodochrosite ore processing, can solve the problems of high input cost of electricity, manpower and equipment, large equipment investment and high cost, achieve high manganese recovery rate and reduce production cost , the effect of reducing production costs

Inactive Publication Date: 2005-05-25
周罗中
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AI Technical Summary

Problems solved by technology

This process is only suitable for manganese-rich ores. For low-grade ores, the cost is too high and generally cannot be used; a small number of low-grade ores must be enriched by magnetic and electric separation before entering the leaching process; this process is grinding, stirring leaching, In the filter press process, the input cost of electricity, manpower, and equipment is high, especially the enrichment by electricity and magnetic separation. The process is complicated, the investment in equipment is large, and it consumes a lot of manpower and power.

Method used

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  • Phodochrosite leaching technology

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Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: Rhodochrosite ore leaching process in surface heap leaching field:

[0022] ① Use a jaw crusher to crush the ore to a full-grain size of -20mm to -40mm;

[0023] ② Build a heap on the ore stockpiling site; the size of the heap is 10,000 square meters, and the annual processing capacity is 120,000 tons;

[0024] ③Spray with 15% (weight percent) sulfuric acid solution, and the spray intensity is 28L / h.m 2 , spray 25 large;

[0025] ④ The collected leaching solution is the manganese-rich solution for subsequent processing;

[0026] ⑤ The poor liquid returns to the secondary leaching, and the processing tail liquid enters the leaching system after being supplemented with acid to realize a closed loop;

[0027] ⑥The leaching slag is sprayed and washed with water with 10% slag content, and the washing liquid enters the leaching water circulation system to supplement the water loss of the system.

Embodiment 2

[0028] Embodiment 2: Rhodochrosite ore leaching process in surface heap leaching field:

[0029] ① The jaw crusher crushes the ore to a full-grain size of -20mm ~ -40mm;

[0030] ② Build piles on the ore dump site;

[0031] ③Spray with 25% sulfuric acid solution by volume, and the spray intensity is 18L / h.m 2 , spray for 20 days;

[0032] ④ The collected leaching solution is the manganese-rich solution for subsequent processing;

[0033] ⑤ The poor liquid returns to the secondary leaching, and the processing tail liquid enters the leaching system after being supplemented with acid;

[0034] ⑥The leaching slag is sprayed and washed with water with 8% slag content, and the washing liquid enters the leaching water circulation system to supplement the water loss of the system.

Embodiment 3

[0035] Embodiment 3: underground stope leaching process in situ:

[0036] ① Medium and deep holes are arranged in the ore body, and the ore body is crushed by extrusion blasting to a full-grain size of about -100mm;

[0037] ②The stope has been treated with anti-seepage

[0038] ③ Spray the surface of the collapsed ore with a 20% volume percent sulfuric acid solution, with a spray intensity of 28L / h.m2, and spray for one month;

[0039] ④ The leachate collected in the lower part of the stope is the manganese-rich solution for subsequent processing;

[0040] ⑤ The poor liquid returns to the secondary leaching, and the processing tail liquid enters the leaching system after being supplemented with acid;

[0041] ⑥The leaching slag is sprayed and washed with water with 10% slag content, and the washing liquid enters the leaching water circulation system to supplement the water loss of the system.

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Abstract

An immersing extraction technology for rhodochrosite features that the deluted sulfuric acid is sprayed on the rhodochrosite ores for immersing it while extracting its active components.

Description

technical field [0001] The invention relates to a manganese ore leaching process, which is especially suitable for rhodochrosite ore processing. Background technique [0002] Rhodochrosite ore is the basic raw material for the production of manganese series products in my country, such as electrolytic manganese metal, electrolytic manganese dioxide, manganese sulfate, manganese carbonate, etc. They generally use manganese-rich solution processed from rhodochrosite ore as an intermediate product. The processing technology of manganese ore usually includes "ore - crushing - grinding to -200~-300 mesh ore powder - mixing with concentrated sulfuric acid for aging or directly adding to a large stirring tank for stirring and leaching - filter press for solid-liquid separation and slag removal - —Manganese-rich solution. This technique is only suitable for manganese-rich ore. For low-grade ores, the cost is too high and generally cannot be used; a small nu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/04C22B3/08
CPCY02P10/20
Inventor 周罗中
Owner 周罗中
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