Method for recovering germanium from germanium-containing materials
A technology of material and germanium slag, which is applied in the field of hydrometallurgy, can solve problems such as difficult and efficient leaching of germanium, and achieve excellent leaching kinetics, increased dissolution speed, and obvious leaching effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0033] First prepare 105g / L H 2 SO 4 Solution is used as leaching agent, takes by weighing 200Kg particle size and is -100 purpose germanium-containing 0.23wt%, zinc-containing 12.6wt%, copper-containing 4.65wt%, iron-containing 5.82wt% material in the reactor, according to the liquid-solid mass ratio is 5: Add leaching agent at a ratio of 1. Then, start stirring, add 85kg of tartaric acid as a leaching aid (that is, the molar ratio of tartaric acid to germanium in the germanium-containing material used is tartaric acid:germanium=89.5:1), and the above-mentioned material solution is heated to 85° C. for leaching for 2 hours. After the leaching reaction is finished, the leaching solution containing germanium can be obtained through liquid-solid separation. The leaching rate of germanium is greater than or equal to 93.1%.
[0034] Pump the leaching solution obtained above into the reaction kettle, start stirring, add lye to pH=6.5, and separate the liquid and solid to obtain ...
Embodiment 2
[0036] First prepare 60g / L H 2 SO 4 Solution is used as leaching agent, takes by weighing 200Kg particle size and is -100 purpose germanium-containing 0.23wt%, zinc-containing 12.6wt%, copper-containing 4.65wt%, iron-containing 5.82wt% material in the reactor, according to the liquid-solid mass ratio is 9: Add leaching agent at a ratio of 1. Then, start stirring, add 110kg of sodium citrate as a immersion aid (that is, the mol ratio of sodium citrate to germanium in the germanium-containing material used is sodium citrate:germanium=30.37:1), and the temperature of the above-mentioned feed liquid is raised to 90°C Leach for 2h. After the leaching reaction is finished, the leaching solution containing germanium can be obtained through liquid-solid separation. The leaching rate of germanium is greater than or equal to 91.7%.
[0037] Pump the leaching solution obtained above into the reaction kettle, start stirring, add lye to pH = 8.2, and separate liquid and solid to obtain...
Embodiment 3
[0039] First prepare 90g / L H 2 SO 4 Solution is used as leaching agent, and 200Kg particle size is taken by weighing 0.23wt% germanium-100 purpose, 12.6wt% zinc, 4.65wt% copper, 5.82wt% iron-containing material in the reactor, according to the liquid-solid mass ratio is 6: Add leaching agent at a ratio of 1. Then, start stirring, add 48kg of oxalic acid as a leaching aid (that is, the molar ratio of oxalic acid to germanium in the germanium-containing material used is oxalic acid: germanium = 118.7:1), and raise the temperature of the above-mentioned feed solution to 55° C. for leaching for 2 hours. After the leaching reaction is finished, the leaching solution containing germanium can be obtained through liquid-solid separation. The leaching rate of germanium is greater than or equal to 95.2%.
[0040] Pump the leaching solution obtained above into the reaction kettle, start stirring, add lye to pH=7.4, and separate the liquid and solid to obtain germanium slag. The obtain...
PUM
Property | Measurement | Unit |
---|---|---|
concentration | aaaaa | aaaaa |
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com