Magnesia refractory materials property promotion method and the product produced thereby
A refractory material and magnesia technology, which is applied in the field of improving and improving the technical performance of magnesia refractory materials, and can solve the problems of increasing chromium oxide content, pore diameter, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0013] Embodiment 1 A method for improving the performance of magnesia-chrome bricks
[0014] A method for improving the performance of magnesia-chrome bricks, the specific steps are as follows:
[0015] 1. Preparation of chromium oxide precursor sol: mix chromium chloride and urea at a molar ratio of 2 to 5:5 to 10, prepare a solution with a concentration of 1.0 to 5.0 mol / L with water, and add 0.05 to 0.2 mol / L per liter of solution mol of ethyl acetate, then reacted at 80-95°C for 10-20 hours, and cooled naturally.
[0016] 2. Preparation of magnesia-chromium spinel precursor sol: mix chromium sulfate, magnesium sulfate, and urea in a molar ratio of 2 to 5:2 to 5:5 to 10, and use ethanol to prepare a concentration of 1.0 to 5.0 mol / L Add 0.05 to 0.5 mol of polyethylene glycol per liter of the solution, react the solution at 80 to 90°C for 12 to 24 hours, and cool naturally.
[0017] 3. The method to improve the performance of magnesia-chrome bricks: place the magnesia-chr...
Embodiment 2
[0021] Embodiment 2 A method for improving the performance of magnesium-chromium castables
[0022] A method for improving the performance of magnesium-chromium castables, the specific steps are as follows:
[0023] 1. Chromium oxide precursor sol: mix chromium chloride and urea at a molar ratio of 3-6:5-10, prepare a solution with a concentration of 1.0-5.0 mol / L with ethyl acetate, and add 0.02- 0.1 mol of polyacrylamide, then react at 80-95°C for 10-20 hours, and cool naturally.
[0024] 2. Magnesium-chromium spinel precursor sol: mix chromium sulfate, magnesium sulfate, and urea in a molar ratio of 3-6:3-6:5-10, and prepare a concentration of 1.0-5.0 mol with a mixed solvent of ethanol and water / L of solution, add 0.10-0.8mol of polyethylene glycol per liter of solution, react the solution at 80-90°C for 12-24 hours, and cool naturally.
[0025] 3. The method to improve the performance of magnesia-chrome castables: place the prefabricated parts of magnesia-chrome castab...
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