METHOD OF DETERMINATION OF THE EFFECTIVE CONCENTRATION OF ANTISCALANT FOR SUPPRESSION OF CRYSTALLIZATION OF SPARINGLY SOLUBLE SALTS IN WATER

摘要

FIELD: measurement technology.;SUBSTANCE: invention relates to physical-chemical studies and can be used in a number of industries to determine the effective concentration of salt or antiscalant crystallization inhibitors. Method consists in preparing a series of solutions of specific technical water with antiscalant with a concentration of from 0.5 to 20.0 mg/l and at a temperature corresponding to the technological parameters of the equipment, in which technical water is used, then for freshly prepared solutions from the experimental data obtained by dynamic light scattering, a kinetic curve of the intensity of growth of particles of sparingly soluble salts is constructed, which determines the value of the induction period of nucleation, and by the graph of the dependence of the value of the induction period on the antiscalant concentration τ_ind=f(C_ant) its effective concentration is determined, taking the time of the induction period during the time of technical water stay in the process equipment from the moment of introduction of the antiscalant.;EFFECT: increase in the reliability and safety of the analysis is achieved, as well as saving the antiscalant.;3 cl, 4 dwg, 3 tbl, 3 ex