depicts the results of the dehydration of fructose with different amount of the Zr-P-Cr catalyst. HMF yield in a very low yield of 0.2% without catalyst, while 28.5% yield of HMF was attained by the use of 12.5 mg of Zr-P-Cr. Further increasing of the catalyst amounts, HMF yields increased accordingly. For example, HMF yield was achieved in a yield of 51.7% after 2 h by the use of 25 mg of the Zr-P-Cr catalyst. With the increase of the reaction time to 5 h, HMF was obtained in a relative high yield of 83.3% by the use of 25 mg of Zr-P-Cr catalyst. 77.8% and 86.3% yields of HMF were obtained after 2 h using 50 mg and 100 mg of the Zr-P-Cr catalyst, respectively. These results clearly show the dehydration rate of fructose increased with an increase of the catalyst loading. HMF yield by the use of 125 mg of the catalyst was almost the same with that using 100 mg of the catalyst. These results indicated that 100 mg of Zr-PCr was the appropriate amount for the dehydration of fructose