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Method and technology for improving flotation effect by using polysulfide ion mixture

A polysulfide ion and mixture technology, applied in flotation, chemical instruments and methods, solid separation, etc., can solve problems such as low vulcanization efficiency and poor flotation effect, achieve high vulcanization efficiency, low price, and facilitate industrialization promotion Applied effect

Inactive Publication Date: 2013-08-21
XINGMIN TECH ZHUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a method of using a polysulfide ion mixture as a vulcanizing agent to treat ore, and then improve the target ore and / or method and process of target mineral flotation effect

Method used

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  • Method and technology for improving flotation effect by using polysulfide ion mixture
  • Method and technology for improving flotation effect by using polysulfide ion mixture
  • Method and technology for improving flotation effect by using polysulfide ion mixture

Examples

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Effect test

Embodiment 1

[0041] Example 1: The separation and smelting process of one-stage grinding + one-stage leaching + one-stage flotation using a polysulfide ion mixture as a vulcanizing agent

[0042] from figure 1 It can be seen that the present invention is a beneficiation and smelting process using a mixture of polysulfide ions as a vulcanizing agent. The ore is subjected to one-stage grinding + one-stage leaching + one-stage flotation. The specific process is: 1) adding polysulfide to the one-stage wet grinding process Sulfur ion mixture, to produce a stage of finely ground pulp; 2) Perform slurry adjustment and mechanical stirring and leaching on a stage of finely ground pulp to produce a stage of stirring and leaching pulp; 3) Add a flotation agent to a stage of stirring and leaching pulp The first stage of flotation produces a stage of flotation concentrate and a stage of flotation tailings; the first stage of flotation tailings is the ultimate tailings.

[0043] It can be seen that t...

Embodiment 2

[0044] Embodiment 2: the beneficiation and smelting process of two-stage grinding + two-stage leaching + two-stage flotation using polysulfide ion mixture as vulcanizing agent

[0045] from figure 2 It can be seen that the present invention is a beneficiation and smelting process using a mixture of polysulfide ions as a vulcanizing agent. The ore is subjected to two-stage grinding + two-stage leaching + two-stage flotation. The specific process is: 1) in one-stage wet grinding Add polysulfide ion mixture in the process to produce one stage of finely ground pulp; 2) Perform slurry adjustment and mechanical and ultrasonic stirring leaching on one stage of finely ground pulp to produce one stage of stirring and leaching pulp; 3) For one stage of stirring and leaching pulp, Add flotation reagents for one-stage flotation, and produce one-stage flotation concentrate and one-stage flotation tailings; 4) Add polysulfide ion mixture to the first-stage flotation tailings, and perform...

Embodiment 3

[0047] Embodiment 3: the beneficiation and smelting process of antimony-gold ore using polysulfide ion mixture as sulfidation agent

[0048] from image 3 It can be seen that the present invention is a beneficiation and smelting process of antimony-gold ore using a polysulfide ion mixture as a vulcanizing agent. The target mineral composition of the antimony-gold mine is: antimony grade 0.45%, gold grade 4 g / t; antimony minerals mainly include stibnite and antimony oxide ore; gold minerals are mainly elemental gold; the occurrence particle size of antimony minerals and gold minerals is -200 mesh accounts for 80%, and -325 mesh accounts for 20%.

[0049] The specific process and effect are as follows: add liquid calcium polysulfide (1000 g / ton) and sodium sulfide (2000 g / ton) in the first stage grinding process, and conduct a stage grinding of gold antimony ore according to the liquid-solid ratio of 1:3, and control the grinding process. The ore particle size -200 mesh acco...

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Abstract

A method for improving the flotation effect by using a polysulfide ion mixture is characterized in that the polysulfide ion mixture is used as the vulcanizing agent to modify the surfaces of target ores and the surfaces of target minerals exposed on the surfaces of the ores and further to improve the hydrophobicity of the surfaces of the target ores and / or the surfaces of the target minerals. The polysulfide ion body of the polysulfide ion mixture is the pentabasic polysulfide ion S52- and the quaternary polysulfide ion S42-, wherein the carrier of the pentabasic polysulfide ion S52- and the quaternary polysulfide ion S42- comprises at least one or any combination of more than one of calcium polysulfide, sodium polysulfide, ammonium polysulfide, sodium sulfide, sodium hydrosulfide and ammonium sulfide. The target ores are oxidized metal ores and oxysalt metal ores in a raw resource form and in a renewable resource form. The target minerals are all oxidized metal ore minerals and oxysalt metal ore minerals except for alkali metal and alkaline-earth metal.

Description

Technical field [0001] The invention relates to a vulcanization method and process for surface modification of ore, in particular to a method and process for improving flotation effect by using polysulfide ion mixture, which belongs to the technical field of wet separation and smelting. Background technique [0002] Using sulfide sulfidation to modify the surface of ore is a general sulfidation method for treating oxidized metal ores and oxygen-containing salt metal ores by flotation. This type of sulfide mainly includes sodium sulfide, sodium hydrogen sulfide, ammonium sulfide, hydrogen sulfide and sulfur. Its technical characteristics are: the sulfur ions generated by sulfide in aqueous solution are mainly unit sulfide ions SX2-(X=1). A large number of studies and applications have shown that using the existing sulfide as a vulcanizing agent for flotation generally has the defects of low vulcanization efficiency and poor flotation effect. For example, when dealing with ul...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03D1/002B03D1/00
Inventor 曾兴民曾三信
Owner XINGMIN TECH ZHUZHOU
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