Study on Catalytic Material Used in HPPO Process

Based on the characteristic of propylene oxide preparation reaction from propylene with hydrogen peroxide as oxidant,catalytic material HTS was investigated thoroughly,including the optimization of preparation conditions for titanium silicalites used in hydrogen peroxide-propylene oxide(HPPO) process,the modification of HTS,the preparation of the catalyst with modified HTS as active component,and the evaluation of HPPO pilot with the prepared catalyst.The results showed that with the suitably modified HTS as the active component of catalyst for HPPO the conversion of hydrogen peroxide and the selectivity to propylene oxide both above 95% could be obtained,and active stability of the catalyst was good enough for propylene epoxidation.