USE OF SOLUTIONS CONTAINING GLUTAMIC N,N-DIACETIC ACID OR A SALT THEREOF (GLDA) AND/OR METHYLGLYCINE N,N-DIACETIC ACID OR A SALT THEREOF (MGDA) TO PREVENT OR REDUCE CORROSION IN EQUIPMENT CONTAINING CHROMIUM-CONTAINING ALLOYS

摘要

The present invention relates to the use of acidic solutions containing from 2 to 50 wt.% on total weight of the solution of glutamic N,N-diacetic acid or a salt thereof (GLDA) and/or from 2 to 40 wt.% methylglycine N,N-diacetic acid or a salt thereof (MGDA) in water to prevent or reduce the corrosion of equipment containing a chromium-containing alloy in the oil and/or gas industry. The technical result consists in providing alternative acidic medium suitable for being used in equipment containing a chromium-containing alloy in the oil and/or gas industry allowing to reduce corrosion of said equipment containing a chromium-containing alloy.