Methods for preparing zeolites with surfactant-templated mesoporosity and tunable aluminum content

US10626019B2 · kind B2 · utility

Assignee

• W.R. Grace & Co.-Conn. · US

Inventors

• Kunhao Li · Princeton, US
• Javier Garcia-Martinez · Requena, ES

Key dates

• Filing date: Dec 30, 2015
• Grant date: Apr 21, 2020
• Expiry date: Jul 11, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/17
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Compositions and methods for preparing mesoporous and/or mesostructured materials from low SAR zeolites are provided herewith. In particular, methods are provided that involve: (a) providing a low SAR zeolite, (b) optionally subjecting the low SAR zeolite to an acid framework modification, and (c) subjecting the framework-modified zeolite to a mesopore formation treatment. The resulting mesoporous zeolites can have bi-modal mesoporosity and higher aluminum contents relative to existing mesoporous zeolites.