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Method for reclaiming gold and silver by ultrasonic treatment and flotation of gold and silver containing tailings

A silver tailings, ultrasonic technology, applied in the direction of flotation, solid separation, process efficiency improvement, etc., can solve the problems of a large amount of fine mud, high production cost, flotation effect, etc.

Inactive Publication Date: 2011-07-27
古晓跃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after re-grinding, a large amount of fine mud will be produced due to over-grinding, which will have an adverse effect on flotation
high production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] Gold and silver-containing tailings are adjusted to 30% ore slurry by pulping. After pulping, gold and silver-containing tailings enter power ≥ 50KW and frequency 20KHz. High-sound-intensity ultrasonic processor for processing, processing time ≥ 10 minutes, ultrasonic treatment Add appropriate amount of lime and sodium sulfite to the pulp after mechanical treatment to adjust the pH value to 6.5-7 to suppress pyrite. Adjust the PH value and add Z200#15g / ton, butylamine black medicine 30g / ton and MIBC 25g / ton to the tailings slurry containing gold and silver, and then enter the flotation machine for flotation. Flotation concentrate is a mixed concentrate containing gold and silver.

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PUM

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Abstract

The invention discloses a method for reclaiming gold and silver by ultrasonic treatment and flotation of gold and silver containing tailings. According to the method for flotation after the gold and silver containing tailings are treated by adopting a high sound intensity ultrasonic processor for mine, due to the action of power ultrasonic, the oxide film on the surface of the gold and silver containing tailings in the high sound intensity ultrasonic processor for mine is quickly removed, and the mineral monomer is dissociated. The low-grade gold and silver tailings can be treated, the speed of clearing the oxide film and crushing mineral coenobiums is high, the energy consumption is low, the agent consumption is low, the production cost is low, the flotation speed of the ultrasonic treated gold and silver tailings is high, and particularly the reclamation rate of gold and silver in the gold and silver tailings can be improved.

Description

Technical field [0001] The invention relates to a method for recovering gold and silver by ultrasonic treatment and flotation of tailings containing gold and silver, which can process low-grade tailings containing gold and silver, and can especially improve the recovery rate of gold and silver in the tailings. Background technique [0002] Gold and silver-bearing tailings are the tailings after beneficiation in copper ore concentrators, lead-zinc ore concentrators and gold ore concentrators. Because gold and silver-bearing tailings contain a certain grade of recyclable copper, lead, zinc, gold, silver, In order to make full use of the country's valuable mineral resources, reduce environmental pollution, and increase the economic benefits of enterprises, many factories and mines have paid attention to the comprehensive recovery of useful minerals in gold and silver-containing tailings. Gravity election, flotation, re-float joint process, etc. The flotation recovery process f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03B1/00C22B7/00C22B11/00
CPCY02P10/20
Inventor 古晓跃
Owner 古晓跃
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