Ore concentration technique for laterite nickel ore rich in nickel and/or cobalt

A process and enrichment technology, applied in the direction of nickel compounds, cobalt compounds, chemical instruments and methods, etc., can solve the problems of unfavorable environment, complex composition, low nickel yield, etc., and achieve an environmentally friendly effect

Inactive Publication Date: 2009-05-27
JIANGXI RARE EARTH & RARE METALS TUNGSTEN GRP
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AI Technical Summary

Problems solved by technology

[0003] Due to the low nickel content and complex composition of laterite nickel ore, it is difficult to obtain concentrate through traditional beneficiation process, and the nickel yield is very low
The flotation agents brought in by flotation also have adverse effects on the environment

Method used

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  • Ore concentration technique for laterite nickel ore rich in nickel and/or cobalt

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Embodiment Construction

[0026] best practice

[0027] Such as figure 1 Shown, be that the beneficiation technological process of raw material by limonite type ore comprises the following steps: ore preparation step 11, screening step 12, gravity separation step 13, magnetic separation step 14, magnetic separation step 15, and magnetic separation process step Produced beneficiation products16.

[0028] In an embodiment of the re-selection-magnetic separation combined flow process for producing the target concentrate from limonite-type ore, the following steps are specifically included:

[0029] A. After ore washing, the ore samples are wet-screened with sieves with sieve holes of 1.0mm and 0.076mm, and three grades of products are produced;

[0030] B. Products with a particle size greater than 1mm are not selected, and directly enter the follow-up processing;

[0031] C. After the -1+0.076mm particle size material is sorted by the shaker, the concentrate and tailings directly enter the product,...

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Abstract

A mineral dressing technique used for enriching nickel and/or cobalt is characterized in that limonite type ore and serpentine type ore are separated for mineral dressing, and adopt a sieve to be processed by classification for at least once after being processed by ore washing; mineral dressing is carried out on the products with granulometric classes, and the target concentrated ore is obtainedby the techniques of reelection and magnetic classification. According to the invention, after the limonite type ore and the serpentine type ore are treated by sieve classification, coarse fraction materials directly enter subsequent hydrometallurgy operation, so that the handling capacity of the selected crude ore is reduced, and the sorting conditions are improved; materials with medium fraction and fine fraction adopt a combined process flow of reelection and magnetic classification for sorting to obtain the target concentrated ore, so that the mineral quantity entering the process flow ofhydrometallurgy is reduced. Mineral dressing is respectively carried out on the limonite type ore and the serpentine type ore in lateritic nickel, thus obtaining the concentrated ore having higher quality, recovery rate and concentration ratio.

Description

technical field [0001] The present invention relates to a kind of beneficiation process of enriching nickel and / or cobalt, especially relate to a kind of beneficiation process of enriching nickel and / or cobalt from laterite nickel ore, especially relate to the limonite type ore in laterite nickel ore A method of separate beneficiation from serpentine-type ore. After the raw ore is screened and classified, the combined process of gravity separation and magnetic classification process is used for beneficiation to enrich nickel and / or cobalt, so as to achieve the purpose of improving the grade. Background technique [0002] According to the prior art, the beneficiation process of laterite nickel ore includes methods such as magnetic separation and flotation. The magnetic separation-flotation process is used to enrich nickel in the non-magnetic part, and then carry out flotation, and the obtained flotation concentrate is the available nickel resource, which can be leached. Bec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B07B1/46B07B1/00B03C1/02
CPCC01G53/00C01G51/00C22B1/00C22B23/005C01P2004/61
Inventor 管建红李平陈文熙李振飞王林生林鸿珍苏树红盛能庆雷捷
Owner JIANGXI RARE EARTH & RARE METALS TUNGSTEN GRP
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