Method for recycling stone coal navajoite waste slag
A stone coal vanadium and waste slag technology is applied in the field of utilizing stone coal vanadium ore waste slag recovery and reuse to extract and produce high-purity metal chromium, which can solve the problems of low recovery rate and waste of metal chromium, and achieve improved purity, low production cost, and increased production. The effect of electrothermal contact area
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0033] The waste slag (the main component content is: Cr 2 o 3 : 30% to 50%, SiO 2 : 25% ~ 30%, CaO: 2% ~ 4%, Al 2 o 3 : 15%~20%, MgO: 4%~8%) mixed with coke, starch by weight 50:10:1 proportioning ratio, put into the ball mill to grind and mix the mixture for 2 hours, add 2 % fluorine salt, compressed into honeycomb blocks, put the blocks into an electric arc furnace with quicklime (CaO) for smelting, the temperature is 1900K, heat preservation for 40 minutes, and vacuum is drawn during the heat preservation process. After the furnace material is melted, shake the electric arc furnace to make the furnace liquid fully react, power off and calm down, and slag is discharged. Turn on the furnace fluid to flow, then add chromium oxide twice the weight of the coke, control the temperature at about 1900°C, and keep it for 50 minutes. Cut off the power supply of the electric arc furnace, remove the electrodes, and separate the smelted products after the mixture is cooled. The s...
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