白炭黑在ZSM-5分子筛工业合成中的应用

Application of white carbon black in ZSM-5 molecular sieve industrial synthesis

将不同比例的白炭黑替代B型硅胶作为固体硅源在水热体系中进行ZSM-5分子筛工业生产,合成质量合格的ZSM-5分子筛晶化料,且加入白炭黑后合成的分子筛晶化料相对结晶度较完全采用B型硅胶合成的分子筛晶化料明显提高。对白炭黑与B型硅胶物质的量比1∶1作为固体硅源合成的ZSM-5分子筛晶化料进行改性,结果表明,改性后的成品ZSM-5分子筛质量稳定,理化性能优于100%B型硅胶合成的成品ZSM-5分子筛。

Quality ZSM-5 molecular sieve was synthesized by hydrothermal method with different proportions of white carbon black instead of B-type silica gel as a solid source of silicon.Degree of crystallinity of molecular sieve was improved after addition of white carbon black.When molar ratio of white carbon black and B-type silica was 1∶1,modified ZSM-5 molecular sieve had better physical and chemical properties than ZSM-5 molecular sieve synthesized from 100%B type silica gel.