一种脱硫废液转硫铵催化剂的制备方法
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGXI JEFF ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-09-23
- Publication Date
- 2026-07-17
AI Technical Summary
In traditional preparation methods, metal ion precipitation is incomplete, leading to the loss of active components. Improper control of the precipitant addition method and reaction conditions affects catalyst performance. Furthermore, the drying and calcination processes are difficult to control precisely, resulting in uneven particle size and a reduction in the number of active sites.
The method employs air flotation to remove impurities, ultrasonic-assisted precipitation, spray drying, and microwave calcination. By controlling the pH value and temperature, the ultrasonic cavitation effect is used to promote the contact between the precipitant and metal ions. Spray drying increases the contact area between the liquid and hot air, and microwave calcination promotes uniform heating and crystallization, avoiding agglomeration.
It improves the recovery rate and purity of active components, produces precipitates with uniform particle size distribution, increases the specific surface area and number of active sites of the catalyst, and enhances catalytic performance and stability.
Smart Images
Figure CN121155685B_ABST