公开(公告)号：US12083502B2

公开(公告)日：2024-09-10

申请号：US16275086

申请日：2019-02-13

Applicant: CALGON CARBON CORPORATION

Inventor： Walter G. Tramposch ,  Ryan Walker

IPC: B01J21/18 ,  B01D15/00 ,  B01J20/20 ,  B01J20/30 ,  B01J37/08 ,  B01J37/12 ,  C02F1/28 ,  C02F101/12 ,  C02F101/16

CPC classification number: B01J21/18 ,  B01D15/00 ,  B01J20/20 ,  B01J20/3078 ,  B01J20/3085 ,  B01J37/08 ,  B01J37/12 ,  C02F1/283 ,  C02F2101/12 ,  C02F2101/16

Abstract: Sorbent materials are described that have enhanced performance in removing chlorine and chloramine, among other toxic compounds. The sorbent materials are formed by a process which includes steps of oxidation using an oxidizing agent, adding a nitrogen-containing compound, and calcining the sorbent.

公开(公告)号：US10702853B2

公开(公告)日：2020-07-07

申请号：US15895410

申请日：2018-02-13

Applicant: CALGON CARBON CORPORATION

Inventor： Jason Mazzoccoli ,  Walter G. Tramposch ,  Ryan Walker ,  Robert H. Vaughn

IPC: B01J20/30 ,  B01J20/20 ,  B01J20/22 ,  B01J21/18 ,  B01J31/02 ,  C02F1/28 ,  B01J20/28 ,  C02F101/12

Abstract: Sorbent materials are described that have enhanced performance in removing chlorine and chloramine, among other toxic compounds. The sorbent materials are formed by a process which includes steps of oxidation, adding a nitrogen-containing compound, and calcining the sorbent. The processes of forming the sorbent materials are also disclosed. The sorbent materials have excellent performance as measured by a chloramine and/or chlorine destruction number, and the sorbents retain a high nitrogen edge concentration. The sorbent materials may also be incorporated into devices such as filter assemblies.