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US08772564B2 Method of producing synthetic zeolite catalyst and method of producing high-purity paraxylene with a catalyst produced by such a method 有权
生产合成沸石催化剂的方法和用这种方法生产的催化剂生产高纯度对二甲苯的方法

Method of producing synthetic zeolite catalyst and method of producing high-purity paraxylene with a catalyst produced by such a method
Abstract:
This invention relates to a method wherein a high-purity paraxylene can be produced efficiently by using a catalyst having a molecular sieving action (or shape selectivity) and being excellent in the catalytic activity without isomerization and adsorption-separation steps. More particularly, it relates to a method of producing a high-purity paraxylene, characterized in that MFI type zeolite having a primary particle size of not more than 100 μm, a structure defining agent and silica material having an average particle size of not less than 10 nm but less than 1.0 μm are used as a starting material, and a synthetic zeolite catalyst produced by subjecting the MFI type zeolite to a coating treatment with an aqueous solution obtained by mixing so as to satisfy X×Y
Abstract(Chinese):

本发明涉及一种方法，其中通过使用具有分子筛选作用（或形状选择性）的催化剂并且在没有异构化和吸附分离步骤的情况下具有优异的催化活性，可以有效地制备高纯度对二甲苯。 更具体地说，涉及高纯度对二甲苯的制造方法，其特征在于，一次粒径为100μm以下的MFI型沸石，平均粒径不小于100μm的结构定义剂和二氧化硅材料 使用10nm但小于1.0μm作为起始原料，以及合成沸石催化剂，该催化剂是通过将混合得到的水溶液进行涂布处理，使其满足X×Y <0.05（其中X为 二氧化硅材料的浓度（摩尔％）和Y是结构限定剂的浓度（摩尔％））用作苯和甲苯中的至少一种作为起始原料的烷基化或歧化。

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