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A kind of preparation method and application of zinc-sulfur mineral flotation separation inhibitor

A technology of mineral flotation and inhibitor, applied in flotation, solid separation, etc., can solve the problems affecting the recovery rate of zinc minerals and the grade of zinc concentrate, increasing the difficulty of sulfide ore separation, and increasing the cost of beneficiation, etc., to achieve low price , good concentrate grade, good recovery effect

Active Publication Date: 2016-04-13
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the flotation and separation process of zinc-sulfur minerals, a large amount of lime is generally used as an inhibitor of sulfur minerals, then copper sulfate is added as an activator of zinc minerals, and xanthate is used as a collector of zinc minerals to collect zinc minerals; However, when a large amount of lime is used as the inhibitor of sulfur minerals, due to the flocculation effect of lime, it will also flocculate part of the zinc-sulfur minerals while inhibiting the sulfur minerals, which virtually increases the difficulty of sulfide ore separation and affects the recovery rate of zinc minerals. zinc concentrate grade; in addition, due to the addition of a large amount of lime, it is not only easy to block the pipeline, but also causes a lot of waste of chemicals, increases the cost of beneficiation, and causes unnecessary economic burden to the enterprise

Method used

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preparation Embodiment 1

[0021] This embodiment is a preparation method of zinc-sulfur mineral flotation separation inhibitor, comprising the following steps:

[0022] Mix pine cones, pine needles, and pine bark (wherein the mass percentage of pine cones is 50%, and the mass percentage of pine needles is 10%), and then pass through a 100-mesh sieve to obtain mixture A; Mix mixture A and sodium sulfide in a mass percentage of 1:1 Then prepare a mixed solution with a percentage concentration of 25%, let the mixed solution stand for 8 hours, heat and cook at 60 degrees Celsius, and then extract, concentrate, and distill the water to obtain a powdery substance that is zinc. Inhibitor for flotation separation of sulfur minerals.

preparation Embodiment 2

[0024] This embodiment is another preparation method of zinc-sulfur mineral flotation separation inhibitor, comprising the following steps:

[0025] Mix pine cones, pine needles, and pine bark (the mass percentage of pine cones is 80%, and the mass percentage of pine needles is 10%). After crushing, pass through a 100-mesh sieve to obtain mixture A; Mix mixture A and sodium sulfide at a mass percentage of 1:3 Then it is prepared into a mixed solution with a concentration of 35%. After the mixed solution is left to stand for 10 hours, it is heated and cooked under the condition of 80 degrees Celsius, and then the obtained substance is extracted, concentrated, and the powdery substance obtained by distilling water is zinc. Inhibitor for flotation separation of sulfur minerals.

preparation Embodiment 3

[0027] This embodiment is another preparation method of zinc-sulfur mineral flotation separation inhibitor, comprising the following steps:

[0028] Mix pine cones, pine needles, and pine bark (the mass percentage of pine cones is 70%, and the mass percentage of pine needles is 25%). After crushing, pass through a 100-mesh sieve to obtain mixture A; Mix mixture A and sodium sulfide at a mass percentage of 1:2 Then prepare a mixed solution with a percentage concentration of 30%, let the mixed solution stand for 9 hours, heat and cook at 80 degrees Celsius, and then extract, concentrate, and distill the water to obtain a powdery substance that is zinc. Inhibitor for flotation separation of sulfur minerals.

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PUM

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Abstract

The invention discloses a preparation method of a zinc sulfide mineral flotation separation inhibitor and the application of the preparation method. The zinc sulfide mineral flotation separation inhibitor is prepared by mixing and crushing pinecones, pine needles and pine barks in proportion, heating and cooking the mixture with sodium sulfide at 60-80 DEG C, then extracting, concentrating and distilling. By the adoption of the preparation method and application of the zinc sulfide mineral flotation separation inhibitor, flotation separation can be carried out on low-zinc and high-sulfide minerals, under the condition that the zinc grade of the fed minerals is 3.14-4.66%, through one time of rougher flotation, two times of scavenging and three times of fine flotation, the zinc grade of flotation concentrate minerals can reach 45.38-46.54%, and the recovery rate can reach 85.70-87.94%. The inhibitor is good in water solubility, few inhibitors are used, and no toxicity or pollution exists.

Description

technical field [0001] The invention belongs to the technical field of flotation separation of zinc-sulfur minerals, in particular to a preparation method and application of a flotation separation inhibitor of zinc-sulfur minerals. Background technique [0002] In the flotation and separation process of zinc-sulfur minerals, a large amount of lime is generally used as an inhibitor of sulfur minerals, then copper sulfate is added as an activator of zinc minerals, and xanthate is used as a collector of zinc minerals to collect zinc minerals; However, when a large amount of lime is used as the inhibitor of sulfur minerals, due to the flocculation effect of lime, it will also flocculate part of the zinc-sulfur minerals while inhibiting the sulfur minerals, which virtually increases the difficulty of sulfide ore separation and affects the recovery rate of zinc minerals. In addition, due to the addition of a large amount of lime, it is not only easy to block the pipeline, but also...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/02B03D1/004B03D101/06
Inventor 卜显忠龙涛宛鹤张崇辉
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY