STUDY COMPLEXING AND TECHNOLOGICAL PROPERTIES OF REAGENTS FOR OIL PRODUCTION, OBTAINED BY MODIFYING SULPHITE LIQUOR PHOSPHONIC

Abstract

The possibility of formation of complex compounds of phosphonic acid groups nitriltrimetilenfosfonovoy (NTF) and sodium tripolyphosphate (TPP) with aromatic structural units sulfite liquor (lignosulphonate technical). A comparative analysis of potentiometric titration curves of solutions of sulfite liquors brine lead acetate and potentiometric curves after modification phenylpropanoic groups sulfite liquor polyvalent metal salts as an example of ferrous sulfate, sodium dichromate, as well as compounds containing phosphonic the example of NTF and TPF. The effect of different modifiers on properties of the resulting complex compounds used in the drilling technology as chemicals, reagents, and viscosity reducers stabilizers technological properties of drilling fluids. Test results obtained complex compounds with respect to the mud showed that modification of lignosulfonate phosphonic groups can increase the thermal stability of parameters of the solution. It is shown that the modification of phenylpropane units lignosulfonate contributes to the formation of complex compounds of at least two kinds: by creating coordination bonds cation - electrophile with phenylpropanoic groups and by replacing the less electronegative anion nucleophile-phenylpropane units on the phosphonate ion. Found that the phosphonic groups of NTF and TPF may form complex compounds with polymeric structures having not only aliphatic but also aromatic structure for example sulphite liquors phenylpropane units.