US 12,420,259 B2
Processes for reducing environmental availability of environmental pollutants
Qunhui Zhou, Concord, CA (US); Gregory H. Lambeth, Baton Rouge, LA (US); Jon E. Miller, Baton Rouge, LA (US); Timothy Allen Frost, Lynchburg, VA (US); Sascha Joerg Welz, Baton Rouge, LA (US); and Se Hye Kim, Baton Rouge, LA (US)
Assigned to ALBEMARLE AMENDMENTS, LLC, Charlotte, NC (US)
Appl. No. 17/048,397
Filed by Albemarle Amendments, LLC, Charlotte, NC (US)
PCT Filed May 3, 2019, PCT No. PCT/US2019/030729
§ 371(c)(1), (2) Date Oct. 16, 2020,
PCT Pub. No. WO2019/213615, PCT Pub. Date Nov. 7, 2019.
Claims priority of provisional application 62/666,943, filed on May 4, 2018.
Prior Publication US 2021/0146335 A1, May 20, 2021
Int. Cl. B01J 20/02 (2006.01); B01J 20/10 (2006.01); B01J 20/12 (2006.01); B01J 20/16 (2006.01); B01J 20/20 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); B01J 20/32 (2006.01); B09B 3/40 (2022.01); B09B 3/70 (2022.01); B09B 5/00 (2006.01); B09C 1/08 (2006.01); C02F 1/28 (2023.01); C02F 1/62 (2023.01); B01J 20/04 (2006.01); B01J 20/06 (2006.01); B01J 20/08 (2006.01); B09C 1/00 (2006.01); C02F 101/20 (2006.01); C02F 103/00 (2006.01); C02F 103/06 (2006.01); C02F 103/08 (2006.01)
CPC B01J 20/20 (2013.01) [B01J 20/103 (2013.01); B01J 20/12 (2013.01); B01J 20/165 (2013.01); B01J 20/28033 (2013.01); B01J 20/3085 (2013.01); B09C 1/08 (2013.01); C02F 1/288 (2013.01); B09C 2101/00 (2013.01); C02F 1/281 (2013.01); C02F 1/283 (2013.01); C02F 2101/20 (2013.01); C02F 2103/007 (2013.01); C02F 2103/06 (2013.01); C02F 2103/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A process for reducing environmental availability of at least a portion of one or more environmental pollutants in a substance comprising one or more environmental pollutants, which process comprises
adding and/or applying a halogen-containing sorbent to said substance, wherein the halogen-containing sorbent comprises one or more halogens selected from fluorine, chlorine, bromine, and/or iodine, and one or more substrate materials, wherein the substrate material is activated carbon, wherein the sorbent is formed from elemental iodine, elemental bromine, elemental chlorine, elemental fluorine, hydrogen chloride, hydrogen bromide, and/or hydrogen iodide and one or more substrate materials,
thereby reducing environmental availability of at least 90% of one or more environmental pollutants in the substance,
wherein the substance comprising said environmental pollutants is a solid, a liquid, or a combination of at least one solid and at least one liquid, and
wherein the halogen-containing sorbent retains at least 99% of the adsorbed environmental pollutants when exposed to desorption conditions.