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Ore dressing and magnesium reduction method of copper-nickel sulfide-platinum-group metal ores

A platinum group metal, copper-nickel sulfide technology, applied in flotation, solid separation, etc., can solve the problems of easy access to concentrate, unfavorable metallurgy, high MgO content in concentrate, and achieve the effect of natural buoyancy recovery

Active Publication Date: 2015-10-28
广东省资源综合利用研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is aimed at basic-ultrabasic rock type copper-nickel sulfide-platinum group metal ore. The main gangue mineral is serpentine. It is very easy to enter the concentrate during the flotation process, resulting in high MgO content in the concentrate, which has an extremely adverse impact on subsequent metallurgy. The reduction of magnesium in ore dressing has become a long-standing industry problem. The present invention provides a technically feasible and economically reasonable Ore dressing and magnesium reduction method

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  • Ore dressing and magnesium reduction method of copper-nickel sulfide-platinum-group metal ores

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Effect test

Embodiment 1

[0026] The original ore is a copper-nickel-platinum group sulfide ore in Yunnan, China.

[0027] (1) The raw ore is ground to -0.074mm, accounting for 71%, add water to adjust the slurry to a pulp concentration of 30%, and add 1000g / t of sodium carbonate based on the weight of the ore, and stir for 3 minutes, and 300g / t of dextrin, and stir for 3 minutes , 300g / t butyl xanthate, stir for 2 minutes, 40 terpineol oil, stir for 1 minute, do rough selection; add 60g / t butyl xanthate, stir for 2 minutes, 10g / t terpineol oil, stir for 1 minute, do it once Sweeping; add 40g / t of butyl xanthate, stir for 2 minutes, 5g / t terpineol oil, stir for 1 minute, and do a second sweep; add 100g / t of dextrin, stir for 3 minutes, perform a selection, add paste Refined at 60g / t, stirred for 3 minutes, and subjected to secondary beneficiation to obtain coarse concentrate;

[0028] (2) Concentrate the coarse concentrate to a pulp concentration of 60%, and then grind it to -0.043mm, accounting for 8...

Embodiment 2

[0031] The original ore is a copper-nickel-platinum group sulfide ore in a certain place in Inner Mongolia, China.

[0032] (1) The raw ore is ground to -0.074mm, accounting for 78%, adding water to adjust the slurry to a pulp concentration of 27%, based on the weight of the ore, adding 1500g / t of sodium carbonate, stirring for 3 minutes, carboxymethyl cellulose 500g / t, Stir for 3 minutes, butylammonium black medicine 100g / t, stir for 2 minutes, terpineol oil 40g / t, stir for 1 minute, do rough selection; add butylammonium black medicine 30g / t, stir for 2 minutes, terpineol oil 10g / t , stir for 1 minute, do a sweep; add butyl ammonium black medicine 20g / t, stir for 2 minutes, terpineol oil 5g / t, stir for 1 minute, do a second sweep; add carboxymethyl cellulose 120g / t, Stir for 3 minutes for a primary beneficiation, add carboxymethyl cellulose 80g / t, stir for 3 minutes, and perform a secondary beneficiation to obtain a coarse concentrate.

[0033] (2) Concentrate the coarse con...

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Abstract

The invention provides an ore dressing and magnesium reduction method of copper-nickel sulfide-platinum-group metal ores. The ore dressing and magnesium reduction method is characterized by comprising the following steps of carrying out ore grinding and flotation on raw ores to obtain rough concentrate; regrinding the rough concentrate, carrying out heating and acid leaching pretreatment; and filtering and washing the pretreated rough concentrate, mixing pulp, and then carrying out flotation to obtain copper-nickel-platinum group bulk concentrate products with low magnesium content. The ore dressing and magnesium reduction method provided by the invention is feasible in technology, economic and reasonable. Compared with a conventional ore dressing and magnesium reduction technology, the ore dressing and magnesium reduction method has the characteristics of remarkable magnesium reduction effect, environmental protection and easiness for operation. The ore dressing and magnesium reduction method is suitable for basic-ultrabasic rock type copper-nickel sulfide-platinum-group metal ores and layered magnesium-iron accumulative rock type independent platinum-group ores.

Description

technical field [0001] The invention relates to a method for reducing magnesium by beneficiating copper nickel sulfide-platinum group metal ore, in particular to a basic-ultrabasic rock type copper nickel sulfide-platinum group metal with gangue minerals mainly serpentine and high magnesium content Mineral processing and magnesium reduction method of ore and layered mafic sedimentary rock type independent platinum group ore. Background technique [0002] Platinum group metals have been praised as "the most important high-tech metal" since the 1980s, and are widely used in precious property, special function high technology, new energy, Environmental protection, catalysts and many other fields. Platinum group elements have iron-loving and sulfur-loving geochemical properties. In the crust, they are often enriched together with nickel-iron-copper sulfides during magma evolution, forming nickel, iron, copper, platinum and other metals. Ultrabasic rock deposits. At present, m...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D1/08B03D103/02B03D101/02B03D101/04B03D101/06
Inventor 邱显扬胡真邹坚坚李汉文汤玉和叶富兴李沛伦汪泰宋宝旭王成行叶小璐付华
Owner 广东省资源综合利用研究所
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