METHOD OF PRODUCTION OF THE WATER-SOLUBLE REACTANT FOR PURIFICATION OF THE SEWAGE AND FOR SEPARATION OF THE PHASES Russian patent published in 2007 - IPC C02F1/52 C02F1/56 B01D21/01 C08L79/00 

FIELD: chemical industry; methods of production of the water-soluble reactant for purification of the sewage and separation of the phases.

SUBSTANCE: the invention is pertaining to the methods of production of reactants for purification of the sewage containing the mechanical suspensions and the contaminations of the organic nature in the dispersed state including the emulsified oil products. For realization of the method of the sewage purification and separation of the phases use as the flocculant the water-soluble reactant on the basis of the polyethyleneimineand produced by mixing of the 1 % water solution of the polyethyleneimine and the 6 % aqueous colloidal solution of aluminum pentahydroxychloride at the molar ratio of А1³⁺:link of polyethyleneimine equal to (1.2-10):1. Predominantly they use the composition of the aluminum pentahydroxychloride, in which one molar ratio of Cl^-/А1³⁺ = 0.46-0.52. The produced polymer-colloidal complexes have the demulsifying capability and give rise to the effective extraction of the oil products from the purified water and also they are the specific reactants for purification of the sewage having the acid properties.

EFFECT: the invention ensures the effective extraction of the oil products from the purified water and production of the specific reactants for purification of the sewage having the acid properties.

2 cl, 1dwg, 5 tbl, 5 ex