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

Method of adding chemical reagents continuously for cyanidation leaching copper-bearing gold ores by peristaltic pump in laboratory

A technology of cyanide leaching and peristaltic pump, applied in the direction of improving process efficiency, etc., can solve problems such as high cyanide consumption and environmental pollution, achieve the effects of reducing cyanide consumption, avoiding manual operation errors, and saving costs

Inactive Publication Date: 2018-11-13
JILIN JIEN NICKEL IND +2
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for leaching copper-containing gold ores by using a peristaltic pump to continuously add cyanide in the laboratory, and to use a peristaltic pump to continuously add cyanide, which can well reduce the consumption of cyanide, thereby saving costs and reducing Environmental pressure, used to solve the problems of high cyanide consumption and serious environmental pollution in the cyanidation process of copper-bearing gold ore

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 of adding chemical reagents continuously for cyanidation leaching copper-bearing gold ores by peristaltic pump in laboratory

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]The laboratory peristaltic pump equipment used in the test is a precision peristaltic pump BT100~2J, with an adjustable flow range: 0.0002ml / min~380ml / min. The conditions of the beneficiation test are: the gold grade of the copper-bearing gold ore used is 3.37g / t, and the copper grade is 0.28%. The copper-containing gold ore is ground by a ball mill until the mass percentage of particles with a particle size of -200 mesh is 90%. Add water and stir until the pulp concentration is 33%, add 8g of calcium oxide per kilogram of ore, pH value 11, pre-leaching time 2 hours; take cyanide solution with a mass concentration of 10%, total 11.6ml, add 2.9ml at one time, leaching 4 After that, the continuous dosing mode with a peristaltic pump was set to 0.0066ml / min, the cyanide concentration in the solution was maintained at 0.019%, and the cyanide leaching time was 26 hours in total. The ore pulp after cyanide leaching is filtered through a medium-speed qualitative filter paper t...

Embodiment 2

[0050] The laboratory peristaltic pump equipment used in the test is a precision peristaltic pump BT100~2J, with an adjustable flow range: 0.0002ml / min~380ml / min. The conditions of the beneficiation test are: the gold grade of the copper-bearing gold ore used is 1.68g / t, and the copper grade is 0.20%. Grind the copper-containing gold ore through a ball mill until the mass percentage of particles with a particle size of -200 mesh is 95%, add water and stir until the pulp concentration is 40%, add 5g of calcium oxide per kilogram of ore, the pH value is 11.5, and the pre-leaching time is 2h. The cyanide solution with a mass concentration of 10%, the total amount is 9.0ml, 1.8ml is added at one time, leached for 2 hours, and then the continuous dosing method with a peristaltic pump is set to 0.0055ml / min, and the cyanide concentration in the solution is maintained at 0.013%. The total cyanide leaching time is 24h. The ore pulp after cyanide leaching is filtered through a medium-...

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 of adding chemical reagents continuously for cyanidation leaching copper-bearing gold ores by a peristaltic pump in a laboratory and belongs to the technical field ofgold cyanidation of gold ores. The method comprises the following four steps of ore grinding, alkali pre-leaching, cyanidation leaching and filtration. According to the method provided by the invention, the addition of a cyanide solution is controlled effectively by means of the peristaltic pump under the circumstance of considering the gold leaching efficiency and the consumption of cyanide is reduced to the maximum extent, so that a cyanidation test tends to a mechanical dosing operation and the manual operating error is avoided. By means of the method, over 30% of the consumption of cyanide can be reduced effectively while the gold leaching efficiency is guaranteed. A charge pump is used in industrial production, the flow of the charge pump is expanded in proportion according to the flow of the peristaltic pump, and the consumption of cyanide can be reduced effectively by applying the method of adding the chemical reagents continuously for cyanidation leaching copper-bearing gold ores by the peristaltic pump in the laboratory to industrial production, so that the cost is saved and the environmental pressure is reduced.

Description

technical field [0001] The invention belongs to the technical field of cyanidation gold leaching of gold ores, and in particular relates to a method for cyanidation leaching copper-containing gold ores by using a peristaltic pump in a laboratory. Background technique [0002] With the increasing cost of gold ore beneficiation in the world, environmental protection is the top priority. More attention should be paid to reducing cyanide consumption in gold ore cyanidation leaching process. However, when the gold ore contains base metals such as copper, zinc, iron, and sulfur, the consumption of cyanide is generally high during the cyanidation leaching process, so while achieving the ideal gold leaching rate, other base metals are also cyanided. leaching, so cyanide consumption is difficult to reduce. [0003] Most of the cyanide leaching processes with high cyanide consumption in my country are accompanied by impurities such as more base metals, so controlling the leaching re...

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 Applications(China)
IPC IPC(8): C22B11/08C22B11/00C22B3/12
CPCC22B3/12C22B11/04C22B11/08Y02P10/20
Inventor 韩治纬任洪胜张鸣昕王凤伟池丕华单丹商雅文邢洪波崔商哲齐亮
Owner JILIN JIEN NICKEL IND
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