一种利用冶金固废制备非均相臭氧催化剂的方法
Heterogeneous ozone catalysts were prepared by adding water, hydrogen peroxide, and acid to hot-rolled sludge for Fenton reaction and carbonization. This solved the problem of high catalyst production costs in the treatment of solid waste in the steel industry, achieved the harmlessness and resource utilization of solid waste, and improved the oxidation degradation efficiency of the catalysts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANGANG STEEL CO LTD
- Filing Date
- 2024-03-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies have failed to effectively utilize iron-containing solid waste hot-rolled sludge from the steel industry to prepare ozone catalysts, resulting in high production costs and poor effects on the harmlessness and resource utilization of solid waste.
By adding water, hydrogen peroxide, and acid to dry and pulverized hot-rolled sludge for a Fenton reaction, then adding bentonite and granulating it, followed by carbonization, a heterogeneous ozone catalyst is formed. The catalytic activity is enhanced by the hydroxyl radicals generated by iron oxide and hydrogen peroxide under acidic conditions.
It reduced the production cost of ozone catalysts, improved the adsorption and catalytic capacity of catalysts, realized the harmlessness and resource utilization of solid waste, enhanced the ozone oxidation and degradation capacity, and improved the pollutant removal efficiency by more than 30%.