DETERGENT FOR DEFATTING FLAT COLD-ROLLED BLACK PLATE IN ROLLS Russian patent published in 2014 - IPC C11D1/66 C11D3/02 C11D3/06 C11D3/08 

FIELD: chemistry.

SUBSTANCE: described is a detergent containing sodium hydroxide - 3.3-5.4 g/l, sodium carbonate - 5.6-9.3 g/l, sodium tripolyphosphate - 1.4-2.3 g/l, dry and liquid hydrophobic plasticising additive (sodium methyl siliconate) - 0.09-0.4 g/l, antifoaming additive - 0.015-0.025 g/l, trisodium phosphate - 0.9-1.5 g/l, nonionic surfactants (mixture of monoalkylphenyl esters of polyethylene glycol based on primary fatty alcohols and monoalkylphenyl ester of polyethylene glycol based on a polymer distillate 1:1) -1.2-1.8 g/l, sodium silicate - 2.8-4.2 g/l, silica hydrosol with ratio [SiO₂]:[Na₂O]≥40 - 0.4-0.6 g/l, water - up to 1 litre, wherein the weight ratio of the silica hydrosol to sodium silicate and to the mixture of nonionic surfactants is equal to 1:7:3.

EFFECT: high degree of cleaning flat cold-rolled black plate owing to high detergent power of the composition.

1 cl, 2 tbl