Published May 2018

Specification of separation conditions for chromatographic compounds being intermediate products of additive synthesis

V.M. Farzaliyev

M.N. Aliyeva

By chromatography of compounds in the vapor-liquid-solid-phase system, the characteristics of high boiling intermediates for the synthesis of additives - homologous series of amino alcohols, thiethanes, as well as high boiling dithiocarbamic acid esters are specified. It is shown that water vapor or organic solvents (acetone, hexane) substitution for an inert gas as a mobile phase, enables increasing the efficiency of the chromatograph columns, reducing the asymmetry of chromatographic zones and improving separation as well. The retention time, the asymmetry coefficients of the analyzed components, and the dependence of the retention parameters on temperature were calculated. A linear character of this dependence for polar sorbents and a weakly polar stationary phase was revealed.