一种催化剂、制备方法与在甲醇氧化合成甲醛中的应用
The iron molybdate nanosphere catalyst prepared by the reverse microemulsion method solves the problems of low active site utilization and insufficient stability of traditional iron-molybdenum catalysts in the methanol oxidation to formaldehyde process, and achieves catalytic performance with high activity, high selectivity and long life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JINAN ENLIGHTEN BIOTECH CO LTD
- Filing Date
- 2025-12-18
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional iron-molybdenum catalysts have problems such as low utilization of active sites, insufficient structural stability, and easy occurrence of deep oxidation side reactions in the process of methanol oxidation to formaldehyde. In particular, the active component molybdenum is easily lost at high temperatures, which leads to a shortened catalyst life.
The catalyst was prepared by the reverse microemulsion method. The reverse microemulsion system was formed by mixing surfactant, co-surfactant and oil phase. The dropwise addition process of iron salt and molybdenum salt mixture was controlled to form iron molybdate nanosphere aggregate catalyst. After calcination, a porous structure was formed, thus optimizing the microstructure of the catalyst.
It significantly improved the activity and stability of the catalyst, suppressed deep oxidation side reactions, extended the catalyst's lifespan, and achieved a highly selective and high-conversion methanol-to-formaldehyde oxidation reaction.
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Figure CN121669251B_ABST
Abstract
Citation Information
Patent Citations
Iron-molybdenum-based catalyst for preparing formaldehyde through methanol oxidation and preparation method of iron-molybdenum-based catalyst
CN114345362A