%0 Journal Article %A Jeeranun Neaungjumnong and Sasikarn Yairit and Sudarat Pattanapaiboonkul and Pramoch Rangsunvigit and Santi Kulprathipanja %D 2012 %J International Journal of Materials and Metallurgical Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 64, 2012 %T Effects of FAU Zeolites on the Crystallization of Chloronitrobenzenes above the Eutectic Composition %U https://publications.waset.org/pdf/4578 %V 64 %X Crystallization has been used for the separation of chloronitrobenzene or CNBs, which are isomeric substances (o-, mand p-CNB) and important intermediates in chemical productions. Effects of feed composition on the crystallization of m- and p-CNB was first studied. The results conform to the binary phase diagram of m- and p-CNB. After that, effects of FAU zeolites (NaX, CaX, BaX, NaY and CaY) above the eutectic composition (63.5 and 65.0 wt% m-CNB in the feed) was also investigated. The results showed that the FAU zeolites significantly affected the precipitates, the composition of which was shifted from being rich in m-CNB to rich in p-CNB. Effects of the number of FAU zeolites on the precipitate composition was then studied. The results revealed that the precipitates from the lower number of the zeolites had higher p-CNB purity than those from the higher number of zeolite. %P 366 - 369