| abstract |
The invention discloses a preparation method of a sulfonic acid functionalized amylose solid acid catalyst and its product and application. Oxy-silicon is reacted to obtain mercapto-treated corn starch, and then the mercapto group is oxidized to obtain a sulfonic acid-functionalized corn starch solid acid catalyst. The solid catalyst synthesized by the invention overcomes the shortcomings of homogeneous catalysts, and has the advantages of simple preparation, environmental protection, catalytic With the advantages of high activity, reusability and low cost, it is a good solid catalyst for etherification reaction, esterification reaction and transesterification reaction. |