US 12,233,376 B2
Surface-modified carbon and sorbents for improved efficiency in removal of gaseous contaminants
Vivekanand Gaur, Dublin, OH (US); and Eric Pontious, Circleville, OH (US)
Assigned to Columbus Industries, Inc., El Paso, TX (US)
Filed by Columbus Industries, Inc., Ashville, OH (US)
Filed on Nov. 3, 2020, as Appl. No. 17/087,716.
Application 17/087,716 is a division of application No. 15/802,971, filed on Nov. 3, 2017, abandoned.
Claims priority of provisional application 62/463,144, filed on Feb. 24, 2017.
Claims priority of provisional application 62/422,943, filed on Nov. 16, 2016.
Claims priority of provisional application 62/416,899, filed on Nov. 3, 2016.
Prior Publication US 2021/0046417 A1, Feb. 18, 2021
Int. Cl. B01D 53/02 (2006.01); B01D 53/72 (2006.01); B01D 53/86 (2006.01); B01J 20/02 (2006.01); B01J 20/28 (2006.01); B01J 20/32 (2006.01)
CPC B01D 53/02 (2013.01) [B01D 53/72 (2013.01); B01D 53/8668 (2013.01); B01J 20/0222 (2013.01); B01J 20/28004 (2013.01); B01J 20/28023 (2013.01); B01J 20/3236 (2013.01); B01J 20/3238 (2013.01); B01J 20/324 (2013.01); B01D 2101/02 (2013.01); B01D 2253/102 (2013.01); B01D 2253/25 (2013.01); B01D 2255/2073 (2013.01); B01D 2257/708 (2013.01); B01D 2258/06 (2013.01); B01D 2259/4508 (2013.01); Y02A 50/20 (2018.01)] 11 Claims
OG exemplary drawing
 
1. A method of forming a material for reacting with volatile organic compounds in a flow of gas, the method comprising:
(a) reacting at least one manganese precursor compound with a reducing agent of the at least one manganese precursor in aqueous phase to form metal oxide nanoparticles;
(b) depositing at least some of the metal oxide nanoparticles in a first porous sorbent having outer surfaces with pores extending internally to define passages, wherein the at least some of the metal oxide nanoparticles deposited in the first porous sorbent are disposed in at least some of the pores and some of the passages: and
(c) applying at least some of the metal oxide nanoparticles to a polymeric fibrous structure.