US 12,168,624 B2
Method for controlling accretion of scale
David Nicholas, Gulf Breeze, FL (US); Reid Henry Bowman, Fort Collins, CO (US); John A. Hatten, Jr., Bentonville, AR (US); Freddie L. Singleton, Fruit Cove, FL (US); Douglas Brian McKenzie, Wesley Chapel, FL (US); and Murray Raymond Jones, Longwarry (AU)
Assigned to Earth Science Laboratories, Inc., Rogers, AR (US)
Appl. No. 17/905,126
Filed by Earth Science Laboratories, Inc., Rogers, AR (US)
PCT Filed Mar. 1, 2021, PCT No. PCT/US2021/020305
§ 371(c)(1), (2) Date Aug. 26, 2022,
PCT Pub. No. WO2021/174203, PCT Pub. Date Sep. 2, 2021.
Claims priority of provisional application 62/982,571, filed on Feb. 27, 2020.
Prior Publication US 2023/0174402 A1, Jun. 8, 2023
Int. Cl. C02F 5/10 (2023.01); C02F 5/12 (2023.01); C02F 103/42 (2006.01)
CPC C02F 5/105 (2013.01) [C02F 5/12 (2013.01); C02F 5/125 (2013.01); C02F 2103/42 (2013.01); C02F 2303/08 (2013.01); C02F 2303/14 (2013.01)] 19 Claims
 
1. A method for inhibiting scale accretion in water-containing systems, comprising:
adding water, sulfuric acid, and molecular clusters of polyammonium bisulfate (“PABS clusters”) to a water-based liquid in a water-containing system to form a treated water-containing system,
wherein a concentration of the PABS clusters in the treated water-containing system is from about 0.01 ppm to about 10,000 ppm, and
wherein the PABS clusters comprise ammonium bisulfate, sulfuric acid, and water according to Formula I
((RaNH4−a)2SO4)x·(H2SO4)y·(H2O)z·((RaNH4−a)HSO4)n  (I)
wherein each R independently is alkyl or aryl; a is 1, 2, or 3; x is at least 1, y is 0 to 5; and z is 0 to 5; and n is 1 to 20.