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

US10759667B2 · kind B2 · utility

Assignee

• PetroChina Company Limited · CN

Inventors

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

Key dates

• Filing date: Jul 6, 2018
• Grant date: Sep 1, 2020
• Expiry date: Nov 7, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/16
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention provides an amphiphilic molecular sieve containing a hydrophilic group on the outside and a lipophilic group on the inside and a production method thereof. The production method comprises: dispersing the ZSM-5 spherical nano-molecular sieve into toluene, adding thereto an organosilane containing a hydrophilic group and reacting at 40-80° C. for 2-16 h, to obtain a molecular sieve containing a hydrophilic group; placing the molecular sieve containing a hydrophilic group in an aqueous solution of sodium hydroxide and reacting at 50-90° C. for 10-50 min, to obtain a molecular sieve containing a hydrophilic group on the outside; dispersing the molecular sieve containing a hydrophilic group on the outside into toluene, adding thereto an organosilane containing a lipophilic group and reacting at 40-80° C. for 2-12 h, to obtain the amphiphilic molecular sieve containing a hydrophilic group on the outside and a lipophilic group on the inside. The present invention also provides an amphiphilic molecular sieve obtained by the above production method, which contains a hydrophilic group on the outside and a lipophilic group on the inside.