Research on dehydration of isopropanol to diisopropyl using this catalyst begins with the activation process of zeolite and modification of the catalyst Zeolite-Zr(H2PO4)4 with various concentrations of 2, 4, 6, 8, and 10 mEq/g. Zeolite-Zr(H2PO4)4 catalyst was obtained with the best composition which resulted in the yield and selectivity of diisopropyl ether products of 35.84% and 47.88%, respe…