| abstract |
The invention discloses a mesoporous solid acid S 2 O 8 2‑ /ZrO 2 ‑TiO 2 ‑La 2 O 3 The preparation method comprises the following steps: mixing zirconium oxychloride, titanium salt, lanthanum salt and template agent, adding precipitant to make coprecipitation, filtering, washing and drying so as to obtain the carrier ZrO 2 ‑TiO 2 ‑La 2 O 3 (ii) a Immersing the carrier in ammonium persulfate solution, and filteringDrying and calcining. The application of the solid acid in polyethylene glycol oleate is provided. The mesoporous material is prepared by modifying the carrier with the template agent, so that the aperture and the specific surface area of the catalyst are improved; interaction force among the rare earth element, the metal element, the O element and the S element is enhanced, and the S element is not easy to fall off in the reaction process, so that better catalytic activity and stability are shown; the catalyst is used for synthesizing polyethylene glycol oleate, has high catalytic efficiency and good stability, does not need an acid neutralization post-treatment process, and is convenient to recycle and reuse. |