Process of removing silicon from low-grade bauxite by adopting chemical floatation method
A chemical flotation, bauxite technology, applied in the direction of alumina/hydroxide, etc., can solve the problems of high production cost, complex production process, poor comprehensive benefit, etc., achieve simple method, easy operation, and improve the ratio of aluminum to silicon Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0019] see figure 1 , the first embodiment of the present invention provides a process for removing silicon from low-grade bauxite by chemical flotation, comprising the following steps: providing low-grade bauxite raw ore as shown in Table 1, and placing it in Crushing in a crusher, and then placing the crushed low-grade bauxite in a grinder for grinding to obtain a particle size of 100 mesh low-grade bauxite particles; take 10.00 g of the 100 mesh low-grade bauxite particles In the fluidized bed reactor, hydrogen fluoride gas was passed into the fluidized bed reactor at 110°C, and reacted for 30 minutes to obtain a desiliconized solid residue; wash and filter the desiliconized solid residue with 80°C water to obtain 6.969 g high-grade bauxite products. X-ray fluorescence analysis method is used to analyze and know: SiO in high-grade bauxite products 2 content of 0.18%, the removal rate of silicon is 99.61%, the content of fluorine is 42.89%, Al 2 o 3 The content is 52.33%...
Embodiment 2
[0023] The second embodiment of the present invention provides a process for removing silicon from low-grade bauxite by chemical flotation, which differs from the first embodiment in that:
[0024] The reaction temperature of the low-grade bauxite particles and hydrogen fluoride gas is 70°C, react for 15 minutes to obtain a desiliconized solid residue, and sequentially wash and dry the desiliconized solid residue with 85°C water to obtain 5.400g of high-grade bauxite product . X-ray fluorescence analysis method is used to analyze and know: SiO in high-grade bauxite products 2 content of 1.41%, the removal rate of silicon is 97.65%, the content of fluorine is 23.41%, Al 2 o 3 The content is 68.53%.
Embodiment 3
[0026] The third embodiment of the present invention provides a process for removing silicon from low-grade bauxite by chemical flotation, which differs from the first embodiment in that:
[0027] The reaction temperature of the low-grade bauxite particles and hydrogen fluoride gas was 20°C, and the desiliconization solid residue was obtained after reacting for 20 minutes. The desiliconization solid residue was successively washed with water at 90°C and dried to obtain 5.410 g of high-grade bauxite product. X-ray fluorescence analysis method is used to analyze and know: SiO in high-grade bauxite products 2 content of 5.19%, the removal rate of silicon is 91.33%, the content of fluorine is 19.80%, Al 2 o 3 The content is 65.20%.
PUM
Property | Measurement | Unit |
---|---|---|
particle size | aaaaa | aaaaa |
particle size | 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