A method for determining the acid-base strength distribution on solid catalyst surface using Hammett indicators in non-polar solvents was introduced. 介绍了在非水溶液中,用统一尺度的Hammett系列指示剂测定表面酸碱全分布的方法。
The oil transesterification catalysts include usually used acid-base catalyst, solid base, lipase, iodine, metal complex, et al. 油脂酯交换催化剂有:常用酸碱催化剂、酶、固体碱、碘、金属配合物等。
The acid-base properties of the supports had an important effect on the coke deposition on the catalyst surface. 载体的酸碱性对催化剂表面的积碳影响较大。
However, the traditional homogeneous acid-base catalyst in the catalytic synthesis of biodiesel transesterification is difficult to separate from the products, and a large number of waste water was generated in the separation, causing environmental pollution problems. 但是,传统均相酸碱催化剂在催化合成生物柴油的酯交换反应中存在产品、催化剂分离困难,分离时产生大量废水而污染环境等问题。