Patent number: 10099932
Abstract: A rapid synthesis method of a small-crystal-grain ZSM-5 molecular sieve, the method comprising: preparing a mixed silicon-aluminum glue solution, placing the solution in a crystallization kettle for low-temperature nucleation, enabling high-temperature crystallization growth of the solution, and obtaining a crystallization product, namely, a small-crystal-grain ZSM-5 molecular sieve, the nucleation temperature being 60-120° C., nucleation time being 1-3 hours, a crystallization growth temperature being 150-170° C., and crystallization growth time being 1-3 hours. The method is easy to operate, and has a short operation time, thus being able to complete within 6 hours; in addition, the product has uniform grain sizes, is in a mono-dispersed state, and has a high crystallization degree to a submicron degree.
Type:
Grant
Filed:
July 14, 2015
Date of Patent:
October 16, 2018
Assignees:
RESEARCH INSTITUTE OF SHAANXI YANCHANG PETROLEUM (GROUP) CO., LTD., DALIAN UNIVERSITY OF TECHNOLOGY
Inventors:
Wei Zhang, Xiongfu Zhang, Dapeng Li, Ruimin Gao, Yongbin Lu, Shuqin Zhang, Mingfeng Wang, Pengju Huo, Si Li, Chengda Wang, Weiwu Xu, Yuan Zhang, Zhiling Liu, Ting Pei, Hua Zhang, Gang Chen, Haiou Liu
Publication number: 20170233259
Abstract: A rapid synthesis method of a small-crystal-grain ZSM-5 molecular sieve, the method comprising: preparing a mixed silicon-aluminum glue solution, placing the solution in a crystallization kettle for low-temperature nucleation, enabling high-temperature crystallization growth of the solution, and obtaining a crystallization product, namely, a small-crystal-grain ZSM-5 molecular sieve, the nucleation temperature being 60-120° C., nucleation time being 1-3 hours, a crystallization growth temperature being 150-170° C., and crystallization growth time being 1-3 hours. The method is easy to operate, and has a short operation time, thus being able to complete within 6 hours; in addition, the product has uniform grain sizes, is in a mono-dispersed state, and has a high crystallization degree to a submicron degree.
Type:
Application
Filed:
July 14, 2015
Publication date:
August 17, 2017
Applicants:
RESEARCH INSTITUTE OF SHAANXI YANCHANG PETROLEUM (GROUP) CO., LTD, DALIAN UNIVERSITY OF TECHNOLOGY
Inventors:
Wei ZHANG, Xiongfu ZHANG, Dapeng LI, Ruimin GAO, Yongbin LU, Shuqin ZHANG, Mingfeng WANG, Pengju HUO, Si LI, Chengda WANG, Weiwu XU, Yuan ZHANG, Zhiling LIU, Ting PEI, Hua ZHANG, Gang CHEN, Haiou LIU