公开(公告)号：WO2019113005A1

公开(公告)日：2019-06-13

申请号：PCT/US2018/063753

申请日：2018-12-04

Applicant: CHEMTREAT, INC.

Inventor： KALAKODIMI, Rajendra Prasad ,  POST, Raymond ,  GODWIN, Douglas A. ,  HATCHER, James

IPC: C23F11/00 ,  C23F11/04

Abstract: Methods and compositions for inhibiting corrosion of a metal product are provided. The metal product can be contacted with water that includes at least one carbonate and/or bicarbonate salt, or otherwise has components that increase the alkalinity of the water. In addition, or as an alternative, the water can include a stannous corrosion inhibitor. The water can be evaporated off of a surface of the metal product to provide a residual of the salt on the surface and/or a protective stannous film on the surface.

公开(公告)号：WO2017214525A1

公开(公告)日：2017-12-14

申请号：PCT/US2017/036787

申请日：2017-06-09

Applicant: CHEMTREAT, INC

Inventor： KALAKODIMI, Prasad ,  POST, Raymond ,  XIAO, Caibin ,  STUART, Dale

IPC: C23F11/14 ,  G01N21/64

Abstract: A method for inhibiting corrosion of a corrodible metal surface that contacts water in a water system is provided. The method may include introducing into the water a treatment composition including an ex-situ halogenated triazole compound in an amount sufficient for inhibiting corrosion. A method of measuring a concentration of the ex-situ halogenated triazole compound in water in a water system is also provided. The method may include inducing the halogenated triazole compound to fluoresce and measuring an intensity of the fluorescence emitted from the water to determine the concentration of the halogenated triazole compound in the water. The concentration of the halogenated triazole can be monitored and controlled. The concentration of the halogenated triazole can be adjusted to a desired level based on the measured fluorescence value.

Abstract translation: 提供了一种用于抑制与水系统中的水接触的可腐蚀金属表面的腐蚀的方法。 该方法可以包括向水中引入处理组合物，该处理组合物包括足以抑制腐蚀的量的非原位卤化三唑化合物。 还提供了测量水系统中的非原位卤化三唑化合物在水中的浓度的方法。 该方法可以包括诱导卤化三唑化合物发荧光并测量从水中发射的荧光的强度以确定卤化三唑化合物在水中的浓度。 可以监测和控制卤化三唑的浓度。 基于测得的荧光值，可以将卤化三唑的浓度调整到所需的水平。