一种硼铁混合精矿中硼和铁的分离回收方法
By combining microwave heat treatment with a mixture of reducing agent and sodium salt, the problem of low selectivity in the separation of boron and iron in boron-iron mixed concentrate has been solved, achieving efficient and low-cost separation and recovery of boron and iron, which is suitable for electric arc furnace steelmaking raw materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2022-03-15
- Publication Date
- 2026-07-17
AI Technical Summary
In existing smelting methods for boron-iron mixed concentrates, the selectivity and recovery rate of boron and iron separation are not high. Traditional pyrometallurgical processes suffer from low activity of boron-rich slag and high cost and long time of sodium reduction process.
A mixture of microwave heat treatment, reducing agent, and sodium salt was used to treat boron-iron mixed concentrate. This was followed by leaching and magnetic separation. The microwave heat treatment temperature and composition ratio were controlled to achieve highly selective separation of boron and iron.
It achieves highly selective conversion and effective separation of boron and iron, reduces production costs, is environmentally friendly, and is suitable for the requirements of raw materials for electric arc furnace steelmaking.
Smart Images
Figure CN116200594B_ABST