| abstract |
The invention belongs to the field of water treatment technology in industrial recycling cooling water, and particularly relates to a low-phosphorous multifunctional molybdate corrosion inhibitor and a preparation method thereof. Per 1L of corrosion inhibitor comprises 2.5-10mg of molybdate, 0.5-2mg of 3-amino-1,2,4-triazole, 1-3mg of phosphono carboxylic acid copolymer, 5-30mg of zinc salt, 5-15mg of polyepoxysuccinic acid, and the balance of water. According to the low-phosphorous multifunctional molybdate corrosion inhibitor, all the components are compounded without generating precipitate, the corrosion inhibitor exists in the form of stable solution, not only can be used for well inhibiting carbon steel, copper and alloy of the carbon steel and copper from being corroded, but also has good scale inhibition performance. |