Maritza I Ortega

US Patent:

20220401932, Dec 22, 2022

Filed:

Nov 18, 2020

Appl. No.:

17/756062

Inventors:

- Florham Park NJ, US
Maritza I. ORTEGA - Haledon NJ, US

International Classification:

B01J 29/08
B01J 29/70
B01J 37/30
B01J 37/08

Abstract:

The present disclosure provides methods of synthesizing a zeolite with a silica-to-alumina ratio (SAR) of 10 or greater comprising, e.g.: forming a reaction mixture including at least one alumina source, at least one silica source, and at least one organic structure directing agent, wherein the reaction mixture has a solids content of about 10% or greater, and crystallizing the reaction mixture at a temperature of 100 C. or less at atmospheric pressure to form a zeolite.

US Patent:

20210370280, Dec 2, 2021

Filed:

Nov 1, 2019

Appl. No.:

17/309167

Inventors:

- Florham Park NJ, US
Ahmad MOINI - Iselin NJ, US
Maritza ORTEGA - Haledon NJ, US

International Classification:

B01J 29/76
F01N 3/20
F01N 3/08
C01B 39/46
B01J 35/10
B01J 6/00
B01J 37/04
B01J 37/08

Abstract:

The present disclosure provides a method of making zeolite intergrowths. In one embodiment, the present disclosure provides a method of making an AEI-based material, including the steps of: preparing a mixture of water, an alumina source, a silica source, a CHA structure directing agent, and an AEI structure directing agent, wherein the molar ratio of the CHA structure directing agent to the AEI structure directing agent is from about 1:1 to about 1:15; heating the mixture at a temperature sufficient to promote formation of crystals; and calcining the crystals at a temperature of from about 450 C. to about 750 C. to obtain a product, wherein no halide-containing reagent is employed. The AEI-based materials of the present disclosure may find particular use in selective catalytic reduction of NOin exhaust gas streams.