公开(公告)号：US20220316073A1

公开(公告)日：2022-10-06

申请号：US17840663

申请日：2022-06-15

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Moses M. SOLOMON ,  Saviour A. UMOREN

IPC: C23F11/173 ,  C08L5/02 ,  C08L1/28 ,  C08L5/06 ,  C08K3/08 ,  C23G1/06 ,  C08L5/04

Abstract: A corrosion inhibitor composition, which includes i) an aqueous alcohol base fluid, ii) a mixture of at least three polysaccharides selected from carboxymethyl cellulose, gum arabic, pectin, a salt of alginic acid, chitosan, dextran, hydroxyethyl cellulose, and soluble starch, with each polysaccharide that is present in the mixture being present in an amount of 0.05 to 0.5 wt. %, based on a total weight of the corrosion inhibitor composition, iii) silver nanoparticles, and iv) a pineapple leaves extract. A method of inhibiting corrosion of metal during acid cleaning/pickling whereby the metal is treated with an acidic treatment fluid containing an acid and the corrosion inhibitor composition.

公开(公告)号：US20210032759A1

公开(公告)日：2021-02-04

申请号：US16526021

申请日：2019-07-30

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Moses M. SOLOMON ,  Saviour M. UMOREN

IPC: C23F11/173 ,  C08L5/02 ,  C08L1/28 ,  C08L5/06 ,  C08L5/04 ,  C08K3/08 ,  C23G1/06

Abstract: A corrosion inhibitor composition, which includes i) an aqueous alcohol base fluid, ii) a mixture of at least three polysaccharides selected from carboxymethyl cellulose, gum arabic, pectin, a salt of alginic acid, chitosan, dextran, hydroxyethyl cellulose, and soluble starch, with each polysaccharide that is present in the mixture being present in an amount of 0.05 to 0.5 wt. %, based on a total weight of the corrosion inhibitor composition, iii) silver nanoparticles, and iv) a pineapple leaves extract. A method of inhibiting corrosion of metal during acid cleaning/pickling whereby the metal is treated with an acidic treatment fluid containing an acid and the corrosion inhibitor composition.