US 12,473,653 B2
Method for inhibiting corrosion of metal article
Mohammad Abu Jafar Mazumder, Dhahran (SA); Shaikh Asrof Ali, Dhahran (SA); Ibrahim Yahia Yaagoob Mohamed, Dhahran (SA); Lipiar Khan Mohammad Osman Goni, Dhahran (SA); and Chandrabhan Verma, Dhahran (SA)
Assigned to KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed by KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed on Jun. 1, 2023, as Appl. No. 18/327,549.
Prior Publication US 2024/0401206 A1, Dec. 5, 2024
Int. Cl. C23F 11/14 (2006.01)
CPC C23F 11/141 (2013.01) 14 Claims
OG exemplary drawing
 
1. A method for inhibiting corrosion of a metal article in contact with a solution comprising an acid, the method comprising:
adding to the solution a corrosion inhibitor in an amount of 1 to 500 parts per million (ppm) based on a total number of parts by mass of the solution thereby adsorbing the corrosion inhibitor onto a surface of the metal article via at least one interaction to form a barrier layer in the form of a composite;
wherein the at least one interaction comprises a physisorption, a chemisorption, and a retro donation;
wherein the corrosion inhibitor has a formula (II)

OG Complex Work Unit Chemistry