Method for recovering rare-earth ions from weathered crust illuviation-type rare-earth ore leaching solution
A weathering shell elution type, rare earth ion technology, applied in the direction of improving process efficiency, can solve the problems of increased production costs, high flocculant prices, etc., to reduce energy consumption, reduce emissions of toxic substances, and good adsorption effect Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0027] A method for recovering rare earth ions in the leach solution of weathering crust leaching type rare earth ore, comprising the steps of:
[0028] (a) Mix 500 g of weathering crust elution-type rare earth ore with 3 L of ammonium sulfate solution with a mass fraction of 2%, stir and leach for 60 minutes, and filter out the solid insolubles therein to obtain a rare earth ion leachate, which is about 3 L;
[0029] (b) Add 30.0g of pyromellitic dianhydride into a round bottom bottle filled with 1500mL of N,N-dimethylformamide. After completely dissolving, add 30.0g of dry bagasse, and place in a constant temperature water bath at 70°C without Under the water environment, after magnetic stirring and condensing and reflux reaction for 8 hours, the product was washed with 0.1mol / L sodium hydroxide solution and deionized water for 3 times, and dried in an oven at 60°C to obtain modified bagasse;
[0030] (c) Take 10g of modified bagasse and add it to the rare earth leach soluti...
Embodiment 2
[0033] A method for recovering rare earth ions in the leach solution of weathering crust leaching type rare earth ore, comprising the steps of:
[0034] (a) Mix 500 g of weathering crust elution-type rare earth ore with 3 L of ammonium sulfate solution with a mass fraction of 2%, stir and leach for 100 min, and filter out the solid insolubles therein to obtain a rare earth ion leachate, which is about 3 L;
[0035] (b) Add 30.0g of pyromellitic dianhydride into a round bottom bottle filled with 1500mL of N,N-dimethylformamide. After completely dissolving, add 30.0g of dried sycamore leaves, and place in a constant temperature water bath at 70°C. Under anhydrous environment, after magnetic stirring and condensing and reflux reaction for 6 hours, the product was washed with 0.1mol / L sodium hydroxide solution and deionized water for 3 times, and dried in an oven at 60°C to obtain modified sycamore leaves;
[0036] (c) Take 10g of modified sycamore leaves and add them to the rare ...
Embodiment 3
[0039] A method for recovering rare earth ions in the leach solution of weathering crust leaching type rare earth ore, comprising the steps of:
[0040] (a) Mix 500 g of weathering crust elution-type rare earth ore with 3 L of ammonium sulfate solution with a mass fraction of 2%, stir and leach for 100 min, and filter out the solid insolubles therein to obtain a rare earth ion leachate, which is about 3 L;
[0041] (b) Add 30.0g of pyromellitic dianhydride into a round bottom bottle filled with 1500mL of N,N-dimethylformamide. After it is completely dissolved, add 30.0g of dried loofah pulp, and place in a constant temperature water bath at 70°C. Under anhydrous environment, after magnetic stirring and condensing and reflux reaction for 6 hours, the product was washed with 0.1mol / L sodium hydroxide solution and deionized water for 3 times, and dried in an oven at 50°C to obtain modified loofah pulp;
[0042] (c) Take 10g of modified loofah pulp and add it to the rare earth lea...
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com