Method for extracting high-quality iron powder and borax from paigeite
A technology of boron ore and boron concentrate, applied in chemical instruments and methods, borates, boron oxides, etc., can solve the problems of poor boron activity, high energy consumption, and difficult separation of boron and iron, so as to improve the additional Value, reduce evaporation, increase the effect of crystallization rate
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0037] Example 1
[0038] Combine iron concentrate with 30wt% Na 2 CO 3 Mixed with 10wt% coal, the mixture and external coal are placed in a crucible in a tubular charging method, kept at a temperature of 1100°C for 3h, and then cooled. The roasted product is crushed and ground (the size of the crushed product is ≤ 10mm, the grinding fineness is -74μm, the content is more than 40%) for leaching and washing, the leaching and washing temperature is 95℃, the leaching and washing time is 30min, the ratio of washing liquid to solid is 1:1, and the leaching rate of boron and sodium has reached More than 90. The leaching residue is finely ground and magnetically separated to obtain a magnetic separation product (the fineness is -74μm, the content is more than 80%, and the magnetic field strength is 60-100kA / m), and then dried in an inert atmosphere to obtain TFe> 98.5% of high-quality iron powder, the recovery rate of iron is over 85%. Add lime milk to the alkaline filtrate, desiliconi...
Example Embodiment
[0039] Example 2
[0040] Combine iron concentrate with 40%wt Na 2 CO 3 Mixed with 10%wt coal, the mixture and external coal are placed in a crucible in a tubular charging method, kept at a temperature of 1150℃ for 4h, and then cooled. The roasted product is crushed and ground (the size of the crushed product is ≤10mm, the fineness of grinding is -74μm, the content is more than 40%) for leaching and washing, the leaching and washing temperature is 95℃, the leaching and washing time is 10min, the ratio of washing liquid to solid is 2:1, and the leaching rate of boron reaches 90% the above. The leaching residue is finely ground and magnetically separated to obtain a magnetic separation product (the fineness is -74μm, the content is more than 80%, and the magnetic field strength is 60-100kA / m), and then dried in an inert atmosphere to obtain TFe> 98.5% of high-quality iron powder, the recovery rate of iron is over 85%. Add lime milk to the alkaline filtrate, desiliconize at 100°C f...
Example Embodiment
[0041] Example 3
[0042] Combine iron concentrate with 20% Na 2 CO 3 Mixed with 5%wt coal, the mixture and external coal are placed in a crucible in a tubular charging method, kept at a temperature of 950℃ for 24h, and then cooled. The roasted product is crushed and ground (the size of the crushed product is ≤ 10mm, grinding fineness of -74μm, content accounted for more than 40%) for leaching and washing, leaching and washing temperature 95℃, leaching and washing time 90min, washing liquid solid ratio 1.5:1, boron leaching rate reached 90% the above. The leaching residue is finely ground and magnetically separated to obtain a magnetic separation product (the fineness is -74μm, the content is more than 80%, and the magnetic field strength is 60-100kA / m), and then dried in an inert atmosphere to obtain TFe> 98.5% of high-quality iron powder, the recovery rate of iron is over 85%. Add lime milk to the alkaline filtrate, desiliconize at 95°C for 120 min, then carbonize (carbonizati...
PUM
Property | Measurement | Unit |
---|---|---|
Granularity | aaaaa | aaaaa |
Fineness | aaaaa | aaaaa |
Magnetic field strength | 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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap