Multiple roasting gold extracting method for unmanageable arsenic-containing gold concentrate
A technology of multiple roasting and gold concentrate, which is applied in the improvement of process efficiency, photography technology, instruments, etc., can solve the problem of low recovery of gold and silver from arsenic gold concentrate, and achieve the improvement of resource utilization. The method is simple and easy to implement. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0016] 1. Ingredients: mix the tailings after the secondary roasting and cyanidation gold extraction, the gold grade is 7.50g / t, and the high-grade sulfide ore containing gold, silver and copper in a ratio of 1:2 in the slurry mixing tank , and adding water to adjust the pulp concentration to be 70%, normal temperature and pressure, continuous stirring, to obtain the pulp suitable for roasting conditions with a sulfur content of 25.10%;
[0017] 2. Roasting: Send the prepared ore pulp into the fluidized fluidized furnace for sulfation roasting, and control the temperature at 630°C; the generated sulfur dioxide flue gas enters the acid system to produce sulfuric acid; the generated slag enters the acid leaching process;
[0018] 3. Acid leaching: In the acid leaching tank, the roasted slag is acid leached with sulfuric acid, the pH is controlled at 1, the temperature is 85°C, and the liquid-solid ratio is 1.5:1;
[0019] 4. The produced copper-containing acid leaching solution ...
Embodiment 2
[0022] 1. Ingredients: mix the tailings after secondary roasting and cyanidation gold extraction, in which the gold grade is 8.10g / t, and the high-grade sulfide ore containing gold, silver and copper in a ratio of 1:2 in the slurry mixing tank , and adding water to adjust the pulp concentration to be 68%, normal temperature and pressure, continuous stirring, to obtain the pulp suitable for roasting conditions with a sulfur content of 25.90%;
[0023] 2. Roasting: Send the prepared pulp into the fluidized fluidized furnace for sulphating roasting, and control the temperature at 580°C; the generated sulfur dioxide flue gas enters the acid system to produce sulfuric acid; the generated slag enters the acid leaching process;
[0024] 3. Acid leaching: In the acid leaching tank, the roasted slag is acid leached with sulfuric acid, the pH is controlled at 1.5, the temperature is 90°C, and the liquid-solid ratio is 1.4:1;
[0025] 4. The produced copper-containing acid leaching solut...
Embodiment 3
[0028] 1. Ingredients: Mix the tailings after secondary roasting and cyanidation gold extraction, in which the gold grade is 9.28g / t, with the high-grade sulfide ore containing gold, silver and copper at a ratio of 1:2 in the slurry mixing tank , and adding water to adjust the pulp concentration to be 69%, normal temperature and pressure, continuous stirring, to obtain a sulfur content of 22.90% suitable for roasting pulp;
[0029] 2. Roasting: Send the prepared ore pulp into the fluidized fluidized furnace for sulfation roasting, and control the temperature at 680°C; the generated sulfur dioxide flue gas enters the acid system to produce sulfuric acid; the generated slag enters the acid leaching process;
[0030] 3. Acid leaching: In the acid leaching tank, the roasted slag is acid leached with sulfuric acid, the pH is controlled at 2.0, the temperature is 70°C, and the liquid-solid ratio is 1.6:1;
[0031] 4. The produced copper-containing acid leaching solution is removed t...
PUM

Abstract
Description
Claims
Application Information

- Generate Ideas
- Intellectual Property
- Life Sciences
- Materials
- Tech Scout
- Unparalleled Data Quality
- Higher Quality Content
- 60% Fewer Hallucinations
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com