Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for recycling multiple elements of liquid after cyanided tailing flotation

A cyanide tailings and multi-element technology, applied in gold smelting and cyanide tailings flotation lead, copper concentrate, sulfur concentrate waste liquid treatment field, can solve pollution and other problems, to improve economic benefits and improve efficiency , to achieve the effect of zero emissions

Active Publication Date: 2013-12-04
SHANDONG GUODA GOLD
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, in the gold smelting industry, flotation technology has been used to obtain lead concentrate, copper concentrate, and sulfur concentrate from the tailings of direct cyanidation gold extraction, so as to realize the comprehensive recovery of lead, copper, and sulfur in minerals, among which flotation lead concentrate The contents of gold and silver in the lead-selected liquid obtained during mining are 0.2-0.5g / m3 and 10.0-20.0g / m3 respectively; the contents of gold, silver and copper in the copper-selected liquid obtained during flotation of copper concentrate are 0.1-0.2g / m3, 0.5-0.8g / m3, 0.4-0.6g / l; the content of gold and silver in the sulfur-selected liquid obtained during flotation of sulfur concentrate is 0.05-0.10g / m3, 0.3-0.5g / m3, due to discharge The amount is large, so the value is high. In order to reduce or even avoid the waste of resources and the pollution of the surrounding environment, it is very necessary and urgent to comprehensively recover gold, silver and copper in each flotation system liquid, but in this field , there is currently no solution to this problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for recycling multiple elements of liquid after cyanided tailing flotation
  • Method for recycling multiple elements of liquid after cyanided tailing flotation
  • Method for recycling multiple elements of liquid after cyanided tailing flotation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1) Add water to the cyanide gold extraction tailings to make it into a slurry, adjust the total mass of the solute in the slurry to account for 30% of the total mass of the slurry, add lime to adjust the slurry pH=9.5, use ethyl sulfur nitrogen as a collector, press 80g / t is added to the flotation machine to perform closed-circuit flotation. After primary roughing, secondary closed-circuit sweeping, and secondary closed-circuit selection, lead is enriched, and lead concentrate and lead tailings and tailings are obtained through pressure filtration and dehydration. The post-lead liquid, the post-lead liquid and the lead tailings are treated separately;

[0023] 2) The lead-selected liquid is filtered to remove suspended minerals and insoluble particles in the lead-selected liquid, and the precipitate is obtained through the zinc powder replacement process (the content of gold in the precipitate is greater than 1% of the total mass of the precipitate %, the content of silve...

Embodiment 2

[0031] 1) Add water to the cyanide gold extraction tailings to make it into a slurry, adjust the total mass of the solute in the slurry to account for 33% of the total mass of the slurry, add lime to adjust the slurry pH=10, and use isoamyl xanthate as a collector. Add 90g / t into the flotation machine for closed-circuit flotation. After first-level roughing, second-level closed-circuit sweeping, and second-level closed-circuit selection, lead is enriched, and lead concentrate and lead tailings are obtained through pressure filtration and dehydration. Separate treatment of ore and lead separation liquid, lead separation liquid and lead tailings;

[0032] 2) The lead-selected liquid is filtered to remove suspended minerals and insoluble particles in the lead-selected liquid, and the precipitate is obtained through the zinc powder replacement process (the content of gold in the precipitate is greater than 1% of the total mass of the precipitate %, the content of silver is greater th...

Embodiment 3

[0040] 1) Add water to the cyanide gold extraction tailings to make it into a slurry, adjust the total mass of the solute in the slurry to account for 35% of the total mass of the slurry, add lime to adjust the slurry PH=11.5, use ethyl sulfide nitrogen as a collector, press 120g / t is added to the flotation machine to perform closed-circuit flotation. After primary roughing, secondary closed-circuit sweeping, and secondary closed-circuit selection, lead is enriched, and lead concentrate and lead tailings and tailings are obtained through pressure filtration and dehydration. The post-lead liquid, the post-lead liquid and the lead tailings are treated separately;

[0041] 2) The lead-selected liquid is filtered to remove suspended minerals and insoluble particles in the lead-selected liquid, and the precipitate is obtained through the zinc powder replacement process (the content of gold in the precipitate is greater than 1% of the total mass of the precipitate %, the content of si...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for recycling multiple elements of liquid after cyanided tailing flotation, belonging to the technical field of gold smelting, cyanided tailing flotation of lead and copper concentrate, and waste water treatment of sulfur concentrate. The method comprises the following steps: obtaining lead concentrate through flotation; comprehensively recycling gold and silver from liquid after lead flotation; obtaining copper concentrate through flotation; comprehensively recycling gold, silver and copper from liquid after copper flotation; obtaining sulfur concentrate through flotation; recycling gold and silver through gold-loaded activated carbon desorption electrodeposition; and the like. By the method, the comprehensive utilization efficiency of resources is improved, closed loop recycle of the liquid in a flotation system is achieved, zero discharge of wastewater is achieved, pollution to the surrounding environment is reduced, and ultimately the economic efficiency of an enterprise is improved.

Description

Technical field [0001] The invention relates to a method for recovering and recycling multiple elements of cyanidation tailings flotation liquid, belonging to the technical field of gold smelting and cyanidation tailings flotation of lead, copper concentrate, and sulfur concentrate waste liquid treatment. Background technique [0002] In recent years, in the gold smelting industry, flotation technology has been applied to the tailings of direct cyanidation gold extraction to obtain lead concentrates, copper concentrates, and sulphur concentrates to realize the comprehensive recovery of lead, copper and sulfur in minerals. The contents of liquid gold and silver obtained during the ore separation are 0.2-0.5g / m3 and 10.0-20.0g / m3 respectively; the contents of the liquid gold, silver and copper obtained during the flotation of copper concentrate are 0.1-0.2g respectively / m3, 0.5-0.8g / m3, 0.4-0.6g / l; the content of gold and silver after sulfur separation obtained during the flotatio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B03B9/06
Inventor 徐永祥吕寿明王立新梁志伟
Owner SHANDONG GUODA GOLD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com