One-off manufacturing technology of chromium compounds and new products in many industries by liquid phase method of ferrochromium
A chromium compound, disposable technology, applied in the direction of chromium compound, ferricyanide, silicon compound, etc., can solve the problems of extremely high container requirements, difficult disposal of toxic chromium slag, and low profit.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment Construction
[0043] 1. Grind 1,000kg of high-carbon ferrochrome into fine powder of 200 mesh or more, put it into a reaction kettle, add a sufficient amount of sulfuric acid 3,000kg, heat it at 15°C-100°C and stir thoroughly, and the reaction dissolves, so that ferrochrome can completely generate ions (Cr 3+ , Fe 2+ ) solution, collect hydrogen, and make 40kg hydrogen of product new energy;
[0044] 2. Add water to the solution to make the soluble substances into ions, including Cr 3+ , Fe 2+ The precipitate in the solution is Si, and the suspended matter is C. The solution is filtered separately to obtain the filtrate and filter residue. The filter residue is washed, separated, and dried to obtain the product Si: 25kg and C: 75kg. The product Si is then produced into polysilicon and single crystal. silicon, the filtrate contains Cr 3+ , Fe 2+ solution and trace metal ions;
[0045] 3. Add oxalic acid 650Kg in the filtrate to make Fe 2+ Completely precipitated as FeC 2 o 4 , filter...
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