一种碳基气态熔池还原直接炼锌的方法及其应用
By using a carbon-based gaseous molten pool reduction method, which utilizes porous carbon flue lining and a carbon monoxide atmosphere, the problems of high zinc melt processing difficulty and low reduction efficiency have been solved. This method achieves efficient and orderly zinc vapor capture and separation, simplifying the zinc recovery process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2024-01-31
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies present challenges in processing high-zinc melts due to their high melting point and viscosity. Commonly used techniques result in the easy volatilization and diffusion of metallic zinc and zinc oxide powder, making it difficult to separate the generated gaseous products. Furthermore, the reduction efficiency is low, requiring further electrolytic recovery of metallic zinc, which involves a long process and high energy consumption.
A carbon-based gaseous molten pool reduction method is adopted, in which lead-zinc oxide materials and carbon-based reducing gas are added to the molten pool reduction furnace. A carbon monoxide-dominated atmosphere is formed by using a porous carbon flue lining to inhibit the oxidation of zinc vapor and promote the reduction and escape of zinc vapor. Metallic zinc is recovered through a zinc vapor condensation device.
It improves the reduction efficiency of high-zinc melt, inhibits zinc vapor oxidation, achieves efficient and orderly zinc vapor capture and separation, reduces energy consumption, and simplifies the zinc recovery process.
Smart Images
Figure CN118186213B_ABST