Silicoaluminophosphate molecular sieve, its preparation and application thereof

US11806696B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC · CN

Inventors

• Weimin Yang · Shanghai, CN
• Zhiqing YUAN · Shanghai, CN
• Jiawei Teng · Shanghai, CN
• Wenhua FU · Shanghai, CN
• Songlin Liu · Beijing, CN

Key dates

• Filing date: Sep 19, 2019
• Grant date: Nov 7, 2023
• Expiry date: Aug 28, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P30/40
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A novel silicoaluminophosphate molecular sieve has a schematic chemical composition, expressed on a molar basis, of mSiO2·Al2O3·nP2O5, in which m represents the molar ratio of SiO2 to Al2O3 and is in a range of about 0.005-0.15, and n represents the molar ratio of P2O5 to Al2O3 and is in a range of about 0.7-1.1. The silicoaluminophosphate molecular sieve has a unique X-ray diffraction pattern, and can be used as an adsorbent, a catalyst or a catalyst carrier.