A catalyst, a preparation method and a method for catalytically synthesizing triacetone amine
CN121588901BActive Publication Date: 2026-06-09NANKAI UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANKAI UNIV
- Filing Date
- 2026-01-29
- Publication Date
- 2026-06-09
AI Technical Summary
Technical Problem
Existing methods for synthesizing triacetone amine have problems such as complex production steps, high costs, significant safety hazards, and poor catalyst temperature resistance, making it difficult to achieve safe, green, and continuous production.
Method used
A catalyst with high activity and selectivity was prepared by using a styrene-divinylbenzene copolymer as the backbone, with acetylacetone metal salt linked by chemical bonds and acidic sites supported, combined with suspension polymerization and fixed-bed process.
Benefits of technology
It improves the reaction selectivity and conversion rate of triacetone amine, simplifies the operation process, reduces waste generation, meets environmental protection requirements, and improves production efficiency.
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Abstract
The application belongs to the technical field of material synthesis, and discloses a catalyst, a preparation method and a method for catalytically synthesizing triacetone amine. The catalyst comprises a styrene-divinylbenzene copolymer skeleton, an acetylacetone metal salt crosslinked to the styrene-divinylbenzene copolymer skeleton through a chemical bond and an acid site loaded on the styrene-divinylbenzene copolymer skeleton. The preparation method comprises the following steps: step 1, uniformly stirring styrene or a styrene derivative, divinylbenzene, a pore former and an initiator to obtain an oil phase; step 2, dissolving an acetylacetone metal salt in a solvent, uniformly mixing the oil phase to obtain an oil phase system; step 3, mixing a dispersant and a polymerization inhibitor solution to obtain an aqueous phase system; step 4, preparing resin beads in the oil phase system and the aqueous phase system; step 5, acidification; and step 6, washing and drying. When the catalyst is used for catalytically synthesizing triacetone amine, the conversion rate is high and the selectivity is strong.
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