Challenges and Opportunities in Manufacturing Zeolites

Sanyuan Yang

Johnson Matthey

Production of zeolite in an industrial plant differs from preparation of a small lab sample not only in scale but also by many other considerations. For example, in manufacturing, commercially available and cost effective raw materials, robust gel formulation, adaptable process scheme, and dischargeable effluents without unusual requirements for treatment are either required or highly desirable but usually not issues of much concern in typical lab experiments. Some selected issues in zeolite manufacturing technology related to performance improvement, quality control and cost of raw materials are discussed. This talk is limited to the high silica zeolites (SiO2/Al2O3>10) made with organic structure directing agents (OSDAs) and used as raw material in making catalysts.