Efficient decomposition method of manganese dithionate in sulfur dioxide leaching solution of manganese ore
A technology of manganese dithionate and sulfur dioxide, which is applied in the field of high-efficiency decomposition of manganese dithionate, can solve the problems of high cost, expensive reagents, unfavorable large-scale industrial application, etc., and achieve the effect of reducing energy consumption, cost and concentration
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0033] The leaching solution is the leaching solution obtained from manganese ore pulp flue gas desulfurization reaction, and the MnS in the leaching solution 2 o 6 The concentration of sulfuric acid is 8g / L, and the molar concentration of sulfuric acid in the leaching solution is about 0.013mol / L (pH is about 1.6). Add sulfuric acid and δ-MnO sequentially under the condition of mechanical stirring 2 To sulfuric acid concentration of about 0.2mol / L, δ-MnO 2 The concentration of 40g / L, 90 ℃ constant temperature water bath reaction for about 3h after filtration, measured MnS in the filtrate 2 o 6 The concentration is 4.3g / L, under this condition MnS 2 o 6 The decomposition rate reaches 46.3%. Under the same initial conditions, keep the concentration of sulfuric acid in the solution constant (0.2mol / L), and the δ-MnO in the solution 2 concentration increased to 50g / L, reacted in a constant temperature water bath at 90°C for about 3 hours, then filtered, and the MnS in the ...
Embodiment 2
[0035] The leaching solution is the leaching solution obtained from manganese ore pulp flue gas desulfurization reaction, and the MnS in the leaching solution 2 o 6 The concentration of sulfuric acid is 8g / L, and the molar concentration of sulfuric acid in the leaching solution is about 0.013mol / L (pH is about 1.6). Add sulfuric acid and δ-MnO sequentially under the condition of mechanical stirring 2 To sulfuric acid concentration of about 0.4mol / L, δ-MnO 2 Concentration of 50g / L, 90 ℃ constant temperature water bath reaction for about 3h after filtration, measured MnS in the filtrate 2 o 6 The concentration is 2.5g / L, under this condition MnS 2 o 6 The decomposition rate reaches 68.8%. Under the same initial conditions, keeping δ-MnO in solution 2 The concentration of sulfuric acid remains unchanged, continue to increase the concentration of sulfuric acid in the solution to 0.6mol / L, react in a constant temperature water bath at 90°C for about 3 hours, then filter, and...
Embodiment 3
[0037] The leaching solution is the leaching solution obtained from manganese ore pulp flue gas desulfurization reaction, and the MnS in the leaching solution 2 o 6 The concentration of sulfuric acid is 8g / L, and the molar concentration of sulfuric acid in the leaching solution is about 0.013mol / L (pH is about 1.6). Add sulfuric acid and δ-MnO sequentially under the condition of mechanical stirring 2 To sulfuric acid concentration of about 0.4mol / L, δ-MnO 2 The concentration of ferric ion is 50g / L, and ferric iron is added at the same time until the concentration of ferric ion is about 2g / L. After reacting at 90°C for about 3 hours, MnS in the filtrate 2 o 6 The concentration is 1.5g / L, under this condition MnS 2 o 6 The decomposition rate reaches 81.3%. Increase the concentration of ferric ions in the solution to about 4g / L, and the MnS in the filtrate after reacting for about 3 hours 2 o 6 The concentration is 0.8g / L, under this condition MnS 2 o 6 The decompositio...
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