The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 22, 2024

Filed:

Aug. 23, 2021
Applicant:

Uop Llc, Des Plaines, IL (US);

Inventors:

James M. Hodges, Evanston, IL (US);

Mimoza Sylejmani-Rekaliu, Bensenville, IL (US);

Paulina Jakubczak, Elk Grove Village, IL (US);

Evgeny Kolev, Arlington Heights, IL (US);

Gregory J. Lewis, Santa Cruz, CA (US);

William Sheets, Glenview, IL (US);

Assignee:

UOP LLC, Des Plaines, IL (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 39/09 (2017.01); B01J 39/02 (2006.01); C01B 33/20 (2006.01);
U.S. Cl.
CPC ...
B01J 39/09 (2017.01); B01J 39/02 (2013.01); C01B 33/20 (2013.01); C01P 2002/72 (2013.01);
Abstract

A new family of rare-earth silicate compositions and the synthetic methods used to prepare them. The materials have open-framework structures and are characterized by their ion-exchange properties. They are represented by the following empirical formula:AMM'SiOwhere A is an exchangeable cation such as sodium, M is at least one element selected from the group of rare-earth elements, and M′ is a framework metal having a valence of +2, +3, +4, or +5. The rare-earth silicate materials have utility in various cation-exchange applications such as dialysis and removal of toxic metals from the gastrointestinal tract.


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