SSZ-13 zeolite (CHA structure) with small pore or 8-membered ring has been widely studied in catalysis and adsorption. Even SSZ-13 might be very useful in such applications, the synthesis usually relies on expensive organic templates. In this study, SSZ-13 was obtained, with a relatively inexpensive template, N,N,N-dimethylethylcyclohexylammonium bromide, from conversion of Y zeolites with wide silica/alumina ratios (SARs), especially in the absence of any crystal seed, additional silica and alumina. The obtained SSZ-13 s have relatively wide SAR of 6.9-36.7; and phase-pure SSZ-13 s could also be obtained from mixture of Y zeolites. The obtained SSZ-13 s, in proton form, were applied in ethylene-to-propylene (ETP) reaction, and the SSZ-13 with suitable SAR (18.8) had not only high propylene yield but also stable propylene production compared with other SSZ-13 s, showing the possible application of the SSZ-13 in ETP reaction.

具有细孔或八元环的SSZ-13沸石（CHA结构）已在催化和吸附方面进行了广泛的研究。甚至SSZ-13在此类应用中可能也非常有用，合成通常依赖于昂贵的有机模板。在这项研究中，SSZ-13是使用具有相对便宜的模板的N，N，N-二甲基乙基环己基溴化铵，是由具有宽二氧化硅/氧化铝比（SAR）的Y沸石的转化获得的，尤其是在没有任何晶种的情况下，二氧化硅和氧化铝。所得的SSZ-13的SAR相对较宽，为6.9-36.7；Y型沸石的混合物也可制得纯相的SSZ-13。将获得的质子形式的SSZ-13应用于乙烯-丙烯（ETP）反应，并将SSZ-13应用于合适的SAR（18。