Copper-ammonia complex ion sulfuration activator and application thereof

A vulcanization activator and complex ion technology, which is applied in cuproammonia complexes, copper oxide/copper hydroxide, solid separation, etc., can solve the problem of low flotation recovery rate of copper oxide ore, reduce the dosage of chemicals and save costs , the effect of high flotation effect

Active Publication Date: 2019-11-01
HUNAN RES INST FOR NONFERROUS METALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology helps improve the efficiency of treating copper-oxygen mineral deposits like cuprite or chalcopyrite through improved removal of impurities from them while also reducing costs associated therewith. It uses an effective combination of different types of metal salts together called cobalt salt and zinc salt for better results compared to previous methods such as calcium hydroxylaquone/sulfonimine treatment alone.

Problems solved by technology

This patents discusses different ways to improve the efficiency of treatments involving copper (Cu) oxides during pyrogen reduction processes like roasting. These techniques involve reducing the amount of iron from these metallurgites while increasing their ability to bind them together through strong bondings called mercuria phases. By doing this, valuable metal values may become accessible without being discarded due to lack of stability. Additionally, there exist other technical problem addressed in current approaches related to improving the performance of sulfur flotsification reagents: how to effectively promote the formation of stable and active films between gold particles and zinc oxide crystars within the micropores inside each particle's lattice structure, thereby promoting separation of coarse grains.

Method used

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  • Copper-ammonia complex ion sulfuration activator and application thereof
  • Copper-ammonia complex ion sulfuration activator and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1, the preparation of copper ammonium ion vulcanization activator: measure 10ml concentration and be the copper sulfate solution of 0.02mol / L, slowly add the concentrated ammonia water of 8mol / L in copper sulfate solution, stop adding until solution pH reaches 6.3, obtain NH 4 + :Cu 2+ A solution of copper ammonium ions in a ratio of 2:1.

[0030] 2. Flotation test: the flotation test adopts a hanging cell type flotation machine (laboratory flotation machine), the volume of the flotation cell is 40ml, the flotation machine speed is 1450r / min, and the flotation temperature is normal temperature. Weigh 2.0g of malachite and pour it into the flotation tank, add 35ml of deionized water, stir and adjust the slurry for 1min, so that the pH of the slurry is 7, set up two groups of experiments respectively, the experimental group is to add 1mL of vulcanization enhancer copper ammine ion solution The same amount of deionized water was added to the control group, and the actio...

Embodiment 2

[0034] 1. Preparation of copper ammonium ion vulcanization activator: measure 10ml of copper sulfate solution with different concentrations, slowly add 8mol / L concentrated ammonia water to the copper sulfate solution, stop adding until the pH of the solution reaches 6.3, and obtain NH 4 + :Cu 2+ A solution of copper ammine ions in a ratio of 2:1 / 3:1 / 4:1.

[0035] 2. Flotation test: The flotation test adopts a hanging cell type flotation machine, the volume of the flotation cell is 40ml, the speed of the flotation machine is 1450r / min, and the flotation temperature is normal temperature. Weigh 2.0g of malachite and pour it into the flotation tank, add 35ml of deionized water, stir and adjust the slurry for 1min, so that the pH of the slurry is 7, set up three groups of experiments respectively, the experimental group is to add 1ml of NH 4 + :Cu 2+ The copper ammonium ion solution with a ratio of 2:1 was used as a vulcanization enhancer, and the two groups of the control gro...

Embodiment 3

[0040] 1, the preparation of copper ammonium ion vulcanization activator: measure 10ml concentration and be the copper sulfate solution of 0.02mol / L, slowly add the concentrated ammonia water of 8mol / L in copper sulfate solution, stop adding until solution pH reaches 6.3, obtain NH 4 + :Cu 2+ A solution of copper ammonium ions in a ratio of 2:1.

[0041] 2. Flotation test: Weigh 2.0g of malachite and pour it into the flotation tank of the flotation machine, add 35ml of deionized water, stir and adjust the slurry for 1min, so that the pH of the slurry is 7. Three groups of experiments were set up respectively, one group was added with 1ml of copper ammonium ion vulcanization activator, that is, the amount of ammonium ion in the pulp was 1×10 -3 mol / L, the optimal amount of adding ammonium sulfate to strengthen vulcanization in the second group is 5×10 -3 mol / L, the best dosage of adding ethylenediamine phosphate in three groups is 4×10 -3 mol / L. After 2 minutes of activat...

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Abstract

The invention discloses a novel copper-ammonia complex ion copper oxide ore sulfuration activator, and belongs to the technical field of mineral processing. By adding the prepared copper-ammonia complex ions, the sulfuration process of the copper oxide ore is enhanced, and the sulfuration effect of the copper oxide ore is more completed. Meanwhile, a xanthate and benzohydroxamic acid mixed collecting agent is used, so that the flotation recovery rate is greatly increased, and a good flotation index is achieved. By adding the copper-ammonia complex ions, adsorption of a sulfurizing agent on thesurface of the mineral is facilitated, so that the sulfurizing effect is enhanced. Secondly, by increasing the adsorbing capacity and the adsorbing speed of the collecting agent on the surfaces of the minerals, the over-sulfuration condition is eliminated, and sulfuration flotation of the copper oxide ores is facilitated. According to the method, the high flotation index of copper can be rapidlyand efficiently achieved with low cost, and the method is simple in process and convenient to operate.

Description

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Claims

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Application Information

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Owner HUNAN RES INST FOR NONFERROUS METALS
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