DETERGENT FOR CLEANING METALLIC SURFACE Russian patent published in 1999 - IPC

FIELD: metallurgy, machine building, automobile manufacture, more particularly cleaning of metallic surface from preservative lubricants, fat and dirt contaminations, adhered particles of metal and dust, preparation of metal surface prior to application of phosphate coating. SUBSTANCE: detergent comprises, g/l: sodium hydroxide, 6.44-11.04; sodium carbonate, 5.74-9.84; sodium metasilicate, 0.42-0.72; oxyethylated monononyl phenol based on propylene trimers with 12 ethylene oxide moles, 0.084-0.144; oxyethylated mononyl phenol based on propylene trimers with ethylene oxide moles, 0.056-0.096; sodium tripolyphosphate, 1.26-2.16, and water, up to 1 l. EFFECT: high degree of cleaning, low consumption of detergent and reduced manufacturing cost. 2 tbl