LIQUID ACIDIC DETERGENT FOR CLEANING FOOD EQUIPMENT Russian patent published in 2014 - IPC C11D1/04 C11D1/825 C11D7/34 

FIELD: chemistry.

SUBSTANCE: detergent includes citric acid, methanesulphonic acid, a surfactant mixture, water and methylglycine diacetic acid and/or propylenediamine tetraacetic acid, taken in a synergistic ratio, with the following ratio of components, wt %: citric acid 2.3-4.6; surfactant mixture 1.5-5.2; methylglycine diacetic acid and/or propylenediamine tetraacetic acid 3.2-4.8; methanesulphonic acid 0.5-10.5; water - the balance. The detergent is prepared using methanesulphonic acid obtained by air oxidation using a non-chlorine technique, and the surfactant system is selected from a group consisting of ethoxylated fatty acids: capret-9carboxylic acid, hexet-4carboxylic acid and/or alkylpolyglycoside.

EFFECT: producing an environmentally friendly liquid acidic detergent based on an optimum ratio of biodegradable organic acids with high detergent power.

3 cl, 1 tbl, 4 ex