DETERGENT FOR METAL SURFACE CLEANING Russian patent published in 2015 - IPC C11D1/66 C11D1/72 C11D3/02 C11D3/10 

FIELD: chemistry.

SUBSTANCE: invention refers to detergents and aims at degreasing cold-rolled metal in rapid metal working units before applying various types of coatings. What is described is a detergent for the metal surface cleaning containing sodium hydroxide, sodium carbonate, a composition of non-ionic oxyethylated products free from alkylphenol ethoxylates, a mixture of polyoxyethylated esters of monoethanolamides of synthetic fatty acids of a C10-C16 fraction, additionally contains trisodium salt of nitrilotriacetic acid and an antifoaming agent in the following proportions, g/l: sodium hydroxide - 4.07-20.35, sodium carbonate - 5.50-27.50, a composition of non-ionic oxyethylated products free from alkylphenol ethoxylates - 0.05-0.25, a mixture of polyoxyethylated esters of monoethanolamides of synthetic fatty acids of a C10-C16 fraction - 0.05-0.25, trisodium salt of nitrilotriacetic acid - 0.30-1.50, antifoaming agent - 0.03-0.15, water the rest to 1 l.

EFFECT: high degree of the metal surface cleaning, low consumption of the agent, and reduced production costs.

1 tbl, 3 ex