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A method of using magnetic hydrophobic particles to strengthen the flotation of refractory nickel sulfide ore

A technology of hydrophobic particles and nickel sulfide ore, applied in flotation, solid separation and other directions, can solve the problems of difficult to improve recovery rate, small particle size of fine-grained nickel sulfide ore, easy to oxidize, etc., to achieve low cost and enhanced surface hydrophobicity. Effect

Active Publication Date: 2020-11-27
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a method for strengthening the flotation of refractory nickel sulfide ore by using magnetic hydrophobic particles to solve the technical problem that the recovery rate of fine-grained nickel sulfide ore is difficult to improve due to the small particle size and easy oxidation of the surface

Method used

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  • A method of using magnetic hydrophobic particles to strengthen the flotation of refractory nickel sulfide ore
  • A method of using magnetic hydrophobic particles to strengthen the flotation of refractory nickel sulfide ore

Examples

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Embodiment 1

[0030] Grind a nickel sulfide ore to -0.074mm, accounting for 80%, add 400g / t dispersant sodium hexametaphosphate, 300g / t inhibitor yellow potato gum, 100g / t collector butyl xanthate and 20g / t t The foaming agent MIBC is used for stirring and slurry mixing and roughing of nickel sulfide minerals to obtain roughing concentrates and roughing tailings. Add the collector butyl xanthate and foaming agent MIBC to the obtained roughing tailings and perform two sweeps to obtain the sweeping tailings. The sweeping sequence returns to the upper level operation, and the first sweeping adds 50g / t capture Collector xanthate, 20g / t foaming agent MIBC, add 30g / t collector xanthate, 10g / t foaming agent MIBC in the second sweep. Adding dispersant sodium hexametaphosphate and inhibitor yellow potato gum to the roughing concentrate to carry out three times of beneficiation to obtain concentrate 1, and the selected middle ore will return to the previous operation in sequence. Among them, the firs...

Embodiment 2

[0034] Grind a nickel sulfide ore to -0.074mm, accounting for 85%, add 500g / t dispersant sodium hexametaphosphate, 200g / t inhibitor yellow potato gum, 80g / t collector butyl xanthate and 20g / t t The foaming agent MIBC is used for stirring and slurry mixing and roughing of nickel sulfide minerals to obtain roughing concentrates and roughing tailings. Add the collector butyl xanthate and the foaming agent MIBC to the obtained roughing tailings, and perform two sweeps to obtain the sweeping tailings. The sweeping sequence returns to the upper level operation, and the first sweeping adds 40g / t trapping Collector xanthate, 20g / t foaming agent, add 20g / t collector xanthate, 10g / t foaming agent MIBC in the second sweep. The dispersant sodium hexametaphosphate and inhibitor yellow potato gum are included in the roughing concentrate for three times of beneficiation to obtain concentrate 1, and the selected middle ore will return to the previous operation in sequence. Among them, the fir...

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Abstract

The invention provides a method for enhancing flotation of refractory nickel sulfide ore by utilizing magnetic hydrophobic particles and belongs to the technical field of mineral separation. The method comprises the following steps: grinding nickel sulfide ore with fine insetting grain size, adding the conventional agent for flotation, and adding ferroferric oxide polydopamine composite particlesinto the tailings for performing flotation on the unrecyclable fine nickel sulfide ore particles under the conventional floatation conditions. According to the method disclosed by the invention, the surface hydrophobicity of the fine nickel sulfide ore particles is enhanced by utilizing the ferroferric oxide polydopamine composite particles, enhanced flotation of the fine nickel sulfide ore particles is realized, and the ore dressing recovery of fine-grained refractory nickel ore is improved. According to the method disclosed by the invention, the problem that the recovery rate is difficultlyimproved because the fine-grained refractory nickel ore is low in granularity and the surface of the ore is easily oxidized is solved, the mineral separation index of the fine-grained refractory nickel sulfide ore is improved, the ferroferric oxide polydopamine composite particles can be recovered by a magnetic separator, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a method for strengthening the flotation of refractory nickel sulfide ore by using magnetic hydrophobic particles. Background technique [0002] Nickel is an important non-ferrous metal raw material required by my country's high-tech development and national economic construction, and is called "industrial vitamin". With the rapid development of my country's national economy, the demand for nickel is increasing, but nickel resources are becoming poorer, finer and more complex, which affects the efficient recovery of nickel resources. Therefore, it is of great significance to develop a new technology for flotation of fine-grained nickel sulfide ore and realize the efficient recovery of fine-grained nickel sulfide ore for the efficient utilization of nickel resources. [0003] Compared with conventional minerals, the important reason why fine-grained minerals are diffic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00B03D103/02
CPCB03D1/00B03D2203/02
Inventor 冯博宁湘涵张文谱王涛郭宇涛汪惠惠
Owner JIANGXI UNIV OF SCI & TECH