A method for extracting and separating light rare earth elements without saponification
A light rare earth element, non-saponifiable technology, applied in the field of hydrometallurgy, can solve the problems of high viscosity, long phase separation time and poor fluidity of the system, and achieve the effects of enhanced fluidity, shortened phase separation time and reduced production cost.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0026]Add P507—N235-200# solvent oil composite type extractant in airtight stirred tank, wherein the volume percentage of P507 is 30%, the volume percentage of N235 is 35%, and the volume percentage of 200# solvent oil is 35%; At 45°C, add a solvent composed of tributyl phosphate and isooctyl alcohol at a flow rate of 0.03L / min, wherein the volume percentage of tributyl phosphate is 80%, and the volume percentage of isooctyl alcohol is 20%; the solvent is added The total amount is 15% of the compound extraction dosage, and stirred for 1 hour. Stop stirring, introduce the mixed organic phase into the extraction tank, and carry out LaCe / PrNd with the chlorinated light rare earth feed liquid (feed liquid concentration: La41g / L, Ce4g / L, Pr10g / L, Nd36g / L; feed liquid pH: 1.5) Extraction groups, according to the figure 1 The process shown is for extraction, washing, and stripping operations, wherein the ratio of the extraction section (organic phase: water phase) is controlled at 1...
Embodiment 2
[0031] Add P204—N1923-260# solvent oil composite type extractant in airtight stirred tank, wherein the volume percentage of P204 is 40%, the volume percentage of N1923 is 30%, the volume percentage of 260# solvent oil is 30%; 70°C, add a solvent composed of trioctyl phosphate and n-pentanol flowing in at a flow rate of 0.05L / min, wherein the volume percentage of trioctyl phosphate is 60%, and the volume percentage of n-amyl alcohol is 40%; the total amount of solvent added The amount is 10% of the compound extraction dosage, and stirred for 0.5h. Stop stirring, introduce the mixed organic phase into the extraction tank, and mix the rare earth chloride feed solution containing La and Ce (the concentrations of La and Ce are 45g / L and 3g / L respectively, and the pH of the feed solution: 1.9) according to the attached figure 1 The process shown is for extraction, washing, and back-extraction operations, wherein the ratio of the extraction section (organic phase: water phase) is con...
Embodiment 3
[0036] Add P507—N235-200# solvent oil composite type extractant in airtight stirred tank, wherein the volume percentage of P507 is 50%, the volume percentage of N235 is 25%, the volume percentage of 200# solvent oil is 25%; 35°C, add a solvent composed of trioctyl phosphate and isooctyl alcohol flowing in at a flow rate of 0.01L / min, wherein the volume percentage of trioctyl phosphate is 90%, and the volume percentage of isooctyl alcohol is 10%; the solvent is added The total amount is 20% of the compound extraction dosage, and stirred for 4 hours. Stop stirring, introduce the mixed organic phase into the extraction tank, and mix the rare earth chloride feed liquid containing Pr and Nd (wherein the concentrations of Pr and Nd are 9g / L and 35g / L respectively, and the pH of the feed liquid: 4) according to the attached figure 1 The shown flow process carries out extraction, washing, stripping operations, wherein, the ratio of extraction section (organic phase: water phase) is co...
PUM
Property | Measurement | Unit |
---|---|---|
concentration | aaaaa | aaaaa |
separation | aaaaa | aaaaa |
separation | 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