US 12,440,806 B2
Process for eliminating hydrogen sulfide in an ammonium sulfate solution
Michael J. Ray, Clearwater, FL (US); Michael F. Ray, Clearwater, FL (US); and Matthew F. Ray, Clearwater, FL (US)
Assigned to THIOSOLV, LLC, Largo, FL (US)
Filed by ThioSolv, LLC, Largo, FL (US)
Filed on Oct. 3, 2022, as Appl. No. 17/959,035.
Claims priority of provisional application 63/370,461, filed on Aug. 4, 2022.
Prior Publication US 2024/0042381 A1, Feb. 8, 2024
Int. Cl. B01D 53/52 (2006.01); B01D 53/58 (2006.01); B01D 53/78 (2006.01); C01B 17/16 (2006.01); C02F 1/66 (2023.01); C02F 1/68 (2023.01)
CPC B01D 53/52 (2013.01) [B01D 2257/304 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A process for selectively eliminating hydrogen sulfide entrained in an aqueous ammonium sulfate solution, comprising:
injecting a solution containing sulfite and/or bisulfite ions into the aqueous ammonium sulfate solution;
mixing the two solutions thoroughly to produce an aqueous mixture comprising ammonium sulfate and ammonium thiosulfate,
wherein the sulfite and/or bisulfite ions are present in the injected solution in a stoichiometric excess to the hydrogen sulfide.