Molybdenum oxide modified montmorillonite K10 clay (Mt-K10) was developed to synthesize ionone isomers via cyclization of pseudoionone. A fixed bed flow reactor was used to convert the current homogenous batch process into a heterogeneous flow process. To increase the acidity, molybdenum oxide was loaded on Mt-K10. Since molybdenum oxide contains both Lewis and Bronsted acidity, the loading resulted in a higher acidity of 1% (w/w) MoO₃/Mt-K10 catalyst compared to Mt-K10 alone. 1% (w/w) MoO₃/Mt-K10 is new, green, and economical catalyst derived from ammonium heptamolybdate tetrahydrate as molybdenum precursor and using Mt-K10 as support. The support and catalyst were analyzed by various characterization techniques, including XRD, FTIR, NH₃-TPD, BET, SEM, TEM, and XPS analysis. Thus, 100 % conversion of pseudoionone and 75 % selectivity of ionone isomers were obtained. 1% (w/w) MoO₃/Mt-K10 catalyst could be easily prepared on a large scale and it is effective in the synthesis of isomers of ionone with higher selectivity in comparison with other solid acids.

开发了氧化钼改性蒙脱土K10粘土（Mt-K10）以通过假紫罗兰酮的环化反应合成紫罗兰酮异构体。使用固定床流动反应器将当前的均相分批过程转化为异相流过程。为了增加酸度，将氧化钼负载在Mt-K10上。由于氧化钼同时包含路易斯酸和布朗斯台德酸度，因此与单独的Mt-K10相比，负载导致酸度更高，为1％（w / w）MoO ₃ / Mt-K10催化剂。1％（w / w）MoO ₃ / Mt-K10是新型，绿色且经济的催化剂，由四水合七钼酸铵铵作为钼前体衍生，并使用Mt-K10作载体。通过各种表征技术，包括XRD，FTIR，NH ₃来分析载体和催化剂-TPD，BET，SEM，TEM和XPS分析。因此，获得了假紫酮的100％转化率和紫酮异构体的75％的选择性。1％（w / w）MoO ₃ / Mt-K10催化剂很容易大规模制备，与其他固体酸相比，它对紫罗兰酮异构体的合成具有更高的选择性。