PREPARATION FOR CONTACTLESS TRANSPORT WASHING Russian patent published in 2015 - IPC C11D1/835 C11D3/04 C11D1/62 C11D3/37 C11D3/20 

FIELD: chemistry.

SUBSTANCE: invention relates to field of chemistry, namely to technical preparation with compositions based on cationic and non-ionogenic SAS for contactless transport washing and similar in properties metal surfaces. Preparation consists of the following components with their given ratio (counted per pure substances and with account of neutralisation reactions that take place), wt %: alkali metal hydroxide 2-6, salt of oxyethylenediphosphonic acid 2-10, salt of ethylenediaminotetraacetic acid 0.5-7, sodium citrate 0-6, sodium silicate 0-3, hydrotropic agent 0-6, amine oxide of general formula R¹NOR²R³, where R¹ is alkyl radical. C_nH_2n+1 with n from 6 to 18, R², R³ are alkyl radicals C_nH_2n+1 with n from 1 to 3 - 1-5, non-ionogenic polyethoxylated SAS 5-15, cationic surfactants of general formula R⁴N⁺R⁵R⁶CH³ with counterions Cl^-, CH₃SO₄ ^- or C₂H₅SO₄ ^-, where R⁴ is alkyl hydrocarbon saturated or unsaturated substituent with quantity of carbon atoms in chain from 8 to 18, R⁵ is radical of polyethoxylated type (CH₂CH₂O)_kH, where k is from 1 to 16, R⁶ is identical to R⁴ or identical to R⁵ 2-9, low-ethoxylated alcohols of linear or branched structure of general formula C_nH_2n+1(OCH₂CH₂)_mOH with n from 1 to 6 and m from 1 to 5 - 2-15, dye 0,05-0,5, water - the remaining part.

EFFECT: increased quality of purification in case of contactless transport washing due to combination of SAS and complexions and increase of productivity due to acceleration of preparation water solubility.

13 cl, 3 ex