	US 11,872,539 B2
	Copper and nitrogen treated sorbent and method for making same
Jason P. Mazzoccoli, Pittsburgh, PA (US); Ryan W. Walker, Pittsburgh, PA (US); and Walter G. Tramposch, Moon Township, PA (US)
Assigned to CALGON CARBON CORPORATION, Moon Township, PA (US)
Filed by CALGON CARBON CORPORATION, Moon Township, PA (US)
Filed on Aug. 31, 2021, as Appl. No. 17/446,532.
Claims priority of provisional application 63/072,531, filed on Aug. 31, 2020.
Prior Publication US 2022/0062862 A1, Mar. 3, 2022
Int. Cl. B01J 20/32 (2006.01); B01J 6/00 (2006.01); B01J 20/02 (2006.01); B01J 20/30 (2006.01); C02F 1/28 (2023.01); C02F 101/12 (2006.01)

CPC B01J 20/324 (2013.01) [B01J 6/001 (2013.01); B01J 20/0237 (2013.01); B01J 20/0259 (2013.01); B01J 20/3085 (2013.01); C02F 1/286 (2013.01); C02F 2101/12 (2013.01)]

13 Claims

1. A method of manufacturing a sorbent material, the method comprising:

providing a carbonaceous material;

activating the carbonaceous material to form a precursor activated carbon;

doping the precursor activated carbon by contacting the precursor activated carbon with a copper source and a nitrogen source to thereby form a doped precursor activated carbon;

wherein the copper source comprises copper sulfate pentahydrate, CuSO₄·5H₂O, or copper (II) carbonate hydroxide, CuCO₃(OH)₂, and the nitrogen source comprises one or more of urea, CO(NH₂)₂, ammonium carbonate, (NH₄)₂CO₃, or aqueous ammonium hydroxide, NH₄OH (nominally aq, 28 wt. %);

calcining the doped precursor activated carbon in a calcining atmosphere that does not cause any substantial oxidation or activation of the doped precursor activated carbon to thereby form a sorbent material.