在不添加有机模板剂的体系中，利用晶种诱导法一步水热合成不规则菱形结构的高纯度丝光沸石MOR。考察了晶化时间、晶化温度、投料硅铝摩尔比对沸石合成的影响，并对其进行酸改性制备了油酸异构催化剂。通过XRD、SEM、Py-IR、BET、TG等对合成MOR沸石的晶体结构、元素分布、物化性质进行表征分析，研究了不同改性煅烧温度对HMOR结构和酸性的影响。结果表明，以油酸异构化反应为探针、HMOR-400为催化剂，在反应温度为270℃、反应时间为4 h、水添加质量分数为4%、催化剂质量分数为6%的反应条件下，油酸（OA）转化率为93.20%，主产物异硬脂酸（IA）产率达到66.93%；将催化剂回收重复利用5次，异硬脂酸产率仍可以达到49.34%。

In the system without adding any organic templates, high purity mordenite (MOR) with irregular rhombic structure is synthesized through one-step hydrothermal synthesis using seed induced method.The effects of crystallization time, crystallization temperature and Si/Al ratio on the synthesis of zeolite are investigated.The obtained MOR is modified to prepare the catalyst for oleic acid isomerization.The crystal structure, element distribution and physicochemical properties of the synthesized MOR zeolite are characterized by means of XRD, SEM, Py-IR, BET, TG, etc.The effects of different modification-calcination temperature on the structure and acidity of HMOR are studied.It is shown that the conversion rate of oleic acid reaches 93.20% and the yield of iso-stearic acid reaches 66.93% when the oleic acid isomerization is taken as probe, HMOR-400 serves as catalyst with a dosage of 6%, the temperature is at 270℃, the dosage of water is 4%, and the reaction lasts for 4 h.The yield of iso-stearic acid can still reach 49.34% after the catalyst has been recycled for five times.

刘小强(1995-),男,硕士生,研究方向为油脂化工,15255816273@163.com。