HIERARCHICAL ALUMINOPHOSPHATES AS CATALYSTS FOR THE BECKMANN REARRANGEMENT
First Claim
Patent Images
1. A method of performing a Beckmann rearrangement reaction comprising the step of:
- reacting an oxime in the presence of a catalyst to produce a lactam, said catalyst comprising a hierarchical porous aluminophosphate comprising a microporous framework and a mesoporous framework.
5 Assignments
0 Petitions
Accused Products
Abstract
Methods for producing lactams from oximes by performing a Beckmann rearrangement using a hierarchical porous aluminophosphate catalyst having interconnected microporous and mesoporous networks are provided. Exemplary catalysts include a plurality of weak Brønsted acid active sites, including silicon-containing aluminophosphates having the IZA framework code AFI, such as SAPO-5, CHA, such as SAPO-34, and FAU, such as SAPO-37.
-
Citations
20 Claims
-
1. A method of performing a Beckmann rearrangement reaction comprising the step of:
reacting an oxime in the presence of a catalyst to produce a lactam, said catalyst comprising a hierarchical porous aluminophosphate comprising a microporous framework and a mesoporous framework. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
14. A hierarchical porous catalyst comprising:
-
an aluminophosphate framework with an IZA framework code selected from the group consisting of AFI, CHA, and FAU; a plurality of interconnected micropores, each micropore having a pore diameter from 3 to 10 Å
; anda plurality of mesopores interconnected with the micropores, each mesopores having a pore diameter from 15 Å
to 50 Å
. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification