Method for treating difficult-to-treat gold concentrates by ozone oxidization and microbial oxidation
A technology for ozone oxidation and refractory gold, which is applied in the direction of improving process efficiency, can solve the problems of gold leaching rate decrease, leaching time shortening, environmental pollution, etc., and achieve the effect of increasing leaching rate and reducing the cost of reagents and equipment
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0028] A method for the combined treatment of refractory gold concentrates using ozone oxidation and microbial oxidation of the present invention is applied to a refractory gold concentrate in Xinjiang. The contents of iron, arsenic, sulfur and gold in the gold concentrate are 23.68%, 3.25%, 24.53%, the content of Au is 55.52g / t, and the gold concentrate is crushed into a particle size of -0.044mm>90% ore powder for gold extraction experiment, including the following steps:
[0029] (1) Fully mix 50g of a certain gold concentrate with 500mL of deionized water, and add alkali to the obtained pulp solution to adjust the pH to 10;
[0030] (2) Ozone is passed into the above solution at a flow rate of 10g / h for oxidation reaction. The oxidation reaction lasts for 1 hour, the reaction temperature is 30°C, and the stirring speed is 300rpm. After the gold concentrate obtained after the treatment is aerated for 2 hours Inoculation of microorganisms;
[0031](3) Then add the solid com...
Embodiment 2
[0035] A method of the present invention for combined treatment of refractory gold concentrates using ozone oxidation and microbial oxidation is applied to a refractory gold concentrate in Pingjiang, Yueyang, Hunan. The contents of iron, arsenic, sulfur and gold in the gold concentrate are 32.98%, 22.81% %, 31.13%, the content of Au is 33.03g / t. The gold concentrate is crushed into a particle size of -0.044mm>90% ore powder for gold extraction experiment, including the following steps:
[0036] (1) 50g of a gold concentrate is fully mixed with 500mL of deionized water to obtain a slurry solution;
[0037] (2) Then add the solid content of 9K medium to the pulp, control the pH to be about 2, inoculate Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans, so that the concentration of microorganisms in the pulp is 5g / L, for biological pre-oxidation, the reaction time is 10d, the stirring speed is 170rpm, and the reaction temperature is 30°C;
[0038] (3) Pass the or...
Embodiment 3
[0042] A method of the present invention for combined treatment of refractory gold concentrates using ozone oxidation and microbial oxidation is applied to a refractory pyrite ore in Pingjiang, Yueyang, Hunan. The contents of iron, arsenic, sulfur and gold in the gold concentrate are 33.48%, 25.85% %, 29.16%, the content of Au is 21.06g / t. The gold concentrate is crushed into a particle size of -0.044mm>90% ore powder for gold extraction experiment, including the following steps:
[0043] (1) Fully mix 50g of a certain gold concentrate with 500mL of deionized water to obtain a slurry solution;
[0044] (2) Then add the solid content of 9K medium to the pulp, control the pH to be about 2, inoculate Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans, so that the concentration of microorganisms in the pulp is 5g / L, for biological pre-oxidation, the reaction time is 10d, the stirring speed is 170rpm, and the reaction temperature is 30°C;
[0045] (3) Pass the ore p...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap