1results about How to "Increase active point" patented technology

The application discloses a supported metal element synergistically modified copper-based catalyst and a preparation method and application thereof. The catalyst is composed of metal copper, metal gallium, an auxiliary element M and a carrier SiO2. In the preparation method, a Cu-Ga catalyst precursor is prepared through an ammonia evaporation method, and then the auxiliary element is added through ball milling. Mechanical shearing force and impact generated in the milling process can promote sufficient contact and uniform mixing of the auxiliary element and the precursor, so that the auxiliary element is more uniformly distributed and a strong interaction is formed. Under the condition that the hydrogen ester ratio is about 200, the application can still maintain a high methyl 3-hydroxypropionate conversion rate and 1,3-propanediol selectivity.