Amphiphilic molecular sieve containing lipophilic group on the outside and hydrophilic group on the inside and production method thereof

US10647586B2 · kind B2 · utility

Assignee

• PetroChina Company Limited · CN

Inventors

• Baoliang Peng · Beijing, CN
• Zongtao Zhang · Unionville, US
• Pingmei Wang · Beijing, CN
• Runwei Wang · Beijing, CN
• Bin Ding · Shandong, CN
• Jianhui Luo · Beijing, CN
• Lipeng He · Beijing, CN
• Ying Wang · Ithaca, US
• Xiangfei Geng · Beijing, CN

Key dates

• Filing date: Jul 6, 2018
• Grant date: May 12, 2020
• Expiry date: Nov 20, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/90
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention provides an amphiphilic molecular sieve containing a lipophilic group on the outside and a hydrophilic group on the inside and a production method thereof. The production method comprises: dispersing the nano-ZSM-5 molecular sieve into toluene, adding an organosilane containing a lipophilic group and reacting at 60-100° C. for 4-16 h, to obtain a molecular sieve containing a lipophilic group; placing the molecular sieve containing a lipophilic group in a mixed solution of sodium hydroxide solution and ethanol and reacting at 60-95° C. for 20-60 min, to obtain a molecular sieve containing a lipophilic group on the outside; dispersing the molecular sieve containing a lipophilic group on the outside into toluene, adding an organosilane containing a hydrophilic group and reacting at 60-100° C. for 4-16 h, to obtain the amphiphilic molecular sieve containing a lipophilic group on the outside and a hydrophilic group on the inside. The present invention also provides a molecular sieve obtained by the above production method, which does not destroy the characteristics of the original molecular sieve and has hydrophilic and lipophilic amphiphilic properties.