the superacid catalyst has the characteristics of high catalytic activities and rate, good chemical stability and little waste discharge in the synthesis.
该合成工艺应用固体超强酸催化剂具有催化活性高、催化速率快、化学稳定性好、无环境污染等优点。
the catalyst could be used for many times without any treatment and no pollution to environment. comparing with the normal catalysts, the nanosolid superacid catalyst had obvious advantages.