Method for recycling red mud
A red mud and product technology, applied in the field of red mud recycling, can solve the problems of secondary waste of resources, hindering the sustainable development of the aluminum industry, and seeping into the ground or water.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment Construction
[0012] Embodiment 1 of the present invention. The red mud recycling method comprises mixing the red mud with water, beating, adding a reducing agent to the red mud slurry, reducing the iron-containing particles in the red mud to magnetite particles, and obtaining the iron-containing product A through magnetic separation. The component A of the iron-containing product is mainly magnetite, which can be sold as a raw material for ironmaking. The reducing agent used is sodium dithionate, zinc dithionate or sodium borohydride.
[0013] The red mud after magnetic separation can be prepared to obtain fired brick product B. The preparation process of fired brick product B is as follows. The red mud is prepared according to the existing process to obtain a brick body, and the brick body is immersed in a mixture of sodium silicate solution and barium sulfate. After taking it out, the surface of the brick body is blown dry by carbon dioxide gas, so that a layer of protective film is for...
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