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Application method of combined reagent in copper and sulphur separation of ore beneficiation of covellite predominantly copper sulfide ore

A technology for combining chemicals and copper-sulfur separation, applied in solid separation, flotation and other directions, can solve the problems of unstable operation process, unsatisfactory copper-sulfur separation effect, etc., and achieve the effect of low toxicity and environmental friendliness of chemicals

Inactive Publication Date: 2013-04-17
西安西北有色地质研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the beneficiation of copper-sulfur ores dominated by copper blue, especially when the sulfur content exceeds 23%, even if a large amount of lime is used, the copper-sulfur separation effect is not satisfactory, and the operation process is not stable.

Method used

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  • Application method of combined reagent in copper and sulphur separation of ore beneficiation of covellite predominantly copper sulfide ore
  • Application method of combined reagent in copper and sulphur separation of ore beneficiation of covellite predominantly copper sulfide ore
  • Application method of combined reagent in copper and sulphur separation of ore beneficiation of covellite predominantly copper sulfide ore

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Experimental program
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Embodiment 1

[0021] Using this method to treat copper-sulfur ore in a certain place in Tibet, the copper oxidation rate is 25.08%. The raw ore copper minerals of this ore are mainly copper blue and chalcocite, and the sulfur minerals are mainly pyrite.

[0022] After the raw ore is ground, use lime to adjust the slurry to make the pH of the raw ore slurry reach 7.5, add copper collector O-isopropyl-N-ethylsulfurethane 80 g / ton raw ore and butyl yellow 150 g / t raw ore flotation to obtain enriched copper-sulfur mixed concentrate;

[0023] Grind the copper-sulfur mixed concentrate to below 325 mesh, and add 600 g / t raw ore activated carbon to the mill;

[0024] A combination of sodium sulfide and sodium humate is added to the regrind mixed concentrate pulp.

[0025] Stir quickly and fully until the agent reaches the effect of inhibiting pyrite;

[0026] Copper collector is added to flotation to separate copper and sulfur, and copper concentrate is obtained through beneficiation, and sulfur...

Embodiment 2

[0031] Using this method to treat copper-sulfur ore in a certain place in North Korea, the copper oxidation rate is 11.28%. The raw ore copper minerals of this ore are mainly copper blue and chalcocite, and the sulfur minerals are mainly pyrrhotite.

[0032] After the raw ore is ground, use lime to adjust the slurry to make the pH of the raw ore slurry reach 8.2, add copper collector O-isopropyl-N-ethylsulfurethane 50 g / ton of raw ore and butyl yellow 100 g / t raw ore flotation to obtain enriched copper-sulfur mixed concentrate;

[0033] Grind the copper-sulfur mixed concentrate to below 325 mesh, and add 100 g / t raw ore activated carbon to the mill;

[0034] The combined agent composed of sodium sulfide and sodium humate is added to the regrind copper-sulfur mixed concentrate slurry.

[0035] Stir quickly and fully until the agent reaches the effect of inhibiting pyrite;

[0036] Copper collector is added to flotation to separate copper and sulfur, and copper concentrate is...

Embodiment 3

[0041] Using this method to treat copper-sulfur ore in a certain place in Xinjiang, the copper oxidation rate is 14.35%. The raw ore copper minerals of this ore are mainly copper blue and chalcocite, and the sulfur minerals are mainly pyrrhotite.

[0042] After the raw ore is ground, use lime to adjust the slurry to make the pH value of the raw ore slurry reach 8.6, add copper collector O-isopropyl-N-ethyl thiocarbamate 100 g / ton of raw ore and butyl yellow 60g / ton raw ore flotation to obtain enriched copper-sulfur mixed concentrate;

[0043] Grind the copper-sulfur mixed concentrate to below 325 mesh, and add 155 g / t raw ore activated carbon to the mill;

[0044] A combination of sodium sulfide and sodium humate is added to the regrind mixed concentrate pulp.

[0045] Stir quickly and fully until the agent reaches the effect of inhibiting pyrite;

[0046] Copper collectors are added to separate copper and sulfur by flotation, copper concentrate is obtained through concentr...

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Abstract

The invention relates to an application method of a combined reagent in copper and sulphur separation of ore beneficiation of covellite predominantly copper sulfide ore. The invention comprises the following steps: size mixing with lime after grinding of raw ores to enable the pH value of raw ore pulps to be 7 to 12, utilizing loatation an O - isopropyl - N - sulfur ethyl carbamate and sodium butyl xanthogenate to obtain an accumulated opper and sulphur mixing concentrate; grinding the accumulated copper and sulphur mixing concentrate to reach the required grinding fineness in the copper and sulphur separation, and directly putting the combined reagent with the lime and an copper collector into the copper and sulphur separation work to activate easy oxidized copper blue minerals and restrain iron pyrites to the effective separation of the copper and the sulphur. Utilizing the application method of the combined reagent in copper and sulphur separation of ore beneficiation of covellite predominantly copper sulfide ore can achieve the effective separation effect of the copper and sulphur, and sodium sulphide and sodium humate can effectively restrain pyrite; in a same separation effect, the using amount of the combined reagent only amounts to 40% to 50% of the lime and other inhabitors; and drug toxicity is small and is environmentally friendly.

Description

Technical field: [0001] The invention belongs to the field of beneficiation engineering, and in particular relates to an application method for separating copper and sulfur in the beneficiation of copper-sulfur ore mainly composed of copper blue. Background technique [0002] Copper blue, chalcocite, and pyrite (pyrhotrite) are typical sulfide ore minerals, and their separation operations are usually referred to as copper-sulfur separation. The high-alkali process represented by lime is the most widely used sulfide ore flotation separation process in production. The application of high-alkali process in copper-sulfur ore mainly composed of chalcopyrite has been quite mature. The copper-sulfur separation effect is good and can be High copper concentrate grade and recovery rate can be obtained, but in the beneficiation of copper-sulfur ore mainly composed of copper blue, especially when the sulfur content reaches more than 20%, there is too much lime consumption, which is easy...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/018B03D101/02B03D101/06
Inventor 万宏民马晶胡本福牛芳银李英
Owner 西安西北有色地质研究院有限公司
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