US 12,084,364 B2
Modified sulfuric acid and uses thereof
Clay Purdy, Medicine Hat (CA); Markus Weissenberger, Calgary (CA); Markus Pagels, Calgary (CA); Kyle G Wynnyk, Calgary (CA); and Karl W Dawson, Calgary (CA)
Assigned to Chemical Evolution Ltd., Calgary (CA)
Filed by Chemical Evolution Ltd., Calgary (CA)
Filed on Aug. 17, 2021, as Appl. No. 17/404,131.
Claims priority of application No. CA 3110391 (CA), filed on Feb. 25, 2021.
Prior Publication US 2022/0267178 A1, Aug. 25, 2022
Int. Cl. C02F 1/72 (2023.01); C02F 101/18 (2006.01); C02F 103/10 (2006.01)
CPC C02F 1/722 (2013.01) [C02F 2101/18 (2013.01); C02F 2103/10 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for the destruction of cyanide present in waste water, said method comprising:
providing said waste water;
exposing said waste water to a composition comprising:
sulfuric acid present in an amount ranging from 20 to 80 wt % of said composition;
a compound comprising an amine moiety and a sulfonic acid moiety selected from the group consisting of taurine and taurine derivatives; and
a peroxide;
for a period of time sufficient to degrade at least 80% of said cyanide present into non-cyanide containing compounds;
wherein said taurine derivatives are selected from the group consisting of: taurolidine; taurocholic acid; tauroselcholic acid; tauromustine; 5-taurinomethyluridine; 5-taurinomethyl-2-thiouridine; homotaurine (tramiprosate); acamprosate; taurates; and aminoalkylsulfonic acids where the alkyl is selected from the group consisting of C1-C5 linear alkyl and C1-C5 branched alkyl.