公开(公告)号：US5218122A

公开(公告)日：1993-06-08

申请号：US555804

申请日：1990-07-18

申请人： Gerald I. Goe ,  Robert D. Davis

发明人： Gerald I. Goe ,  Robert D. Davis

IPC分类号： C07D213/08 ,  C07D213/09 ,  C07D213/10

CPC分类号： C07D213/08 ,  C07D213/10

摘要： An improved base synthesis process and catalyst for the preparation of pyridine or its alkylpyridine derivatives involving the catalytic reaction of one or more aldehydes and/or ketones containing from one to about five carbon atoms, with at least one reactant having more than one carbon atom, with ammonia in the gas phase. The improved catalyst comprises an effective amount of a shape-selective zeolite which has been modified by treatment with one or more metal ions or compounds of tungsten. zinc or tin. The preferred zeolite has a constraint index of about 1 to 12 and a high silica content and correspondingly low concentration of ion-exchange sites with minimal to no acidic sites present.

摘要翻译： 一种用于制备吡啶或其烷基吡啶衍生物的改进的碱合成方法和催化剂，涉及一种或多种含有1至约5个碳原子的醛和/或酮与至少一种具有多于一个碳原子的反应物的催化反应， 与氨在气相。 改进的催化剂包含有效量的形状选择沸石，其通过用一种或多种金属离子或钨化合物处理而被改性。 锌或锡。 优选的沸石具有约1至12的约束指数和高二氧化硅含量，并且相应地具有极少至无酸性位点的离子交换位点的低浓度。