US 12,434,970 B2
Method for producing haloamines and haloamine solutions
Bruno Launay, Wasquehal (FR); Dimitri Kuznetsov, Memphis, TN (US); and Thomas McNeel, Memphis, TN (US)
Assigned to Buckman Laboratories International, Inc., Memphis, TN (US)
Filed by Buckman Laboratories International, Inc., Memphis, TN (US)
Filed on Sep. 25, 2023, as Appl. No. 18/473,949.
Application 18/473,949 is a division of application No. 16/697,054, filed on Nov. 26, 2019, granted, now 11,802,050.
Claims priority of provisional application 62/773,819, filed on Nov. 30, 2018.
Prior Publication US 2024/0018000 A1, Jan. 18, 2024
Int. Cl. C01B 21/09 (2006.01); A01N 59/00 (2006.01); C01B 11/06 (2006.01); C25B 1/26 (2006.01)
CPC C01B 21/091 (2013.01) [A01N 59/00 (2013.01); C01B 11/06 (2013.01); C25B 1/26 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for producing a haloamine solution with reduced amounts of halogen polyoxyanions comprising
(a) on-site generation of a halogen-containing oxidant solution, wherein the halogen-containing oxidant solution contains hypohalite; and
(b) reacting on-site the on-site generated halogen-containing oxidant with a nitrogen source, to thereby produce the haloamine solution with reduced amounts of halogen polyoxyanions,
wherein the on-site generation comprises reacting at least one halogenated hydantoin compound with water,
wherein the haloamine solution comprises less than 5% by weight of halogen polyoxyanions.