Thermoanalytical Study of Lithium Containing Sorbents

Abstract

Sorbents modification by immobilization of active substances (compounds of lithium, silver, etc.) on their surface provides strengthening of their sanative properties in different pathologies. The sorbents deliver active substances to the area of therapeutic action and at the same time play the role of detoxicants, sorptioning different toxins on their surface and bringing them out naturally from the body. When selecting the technology of sorbent production, it is rather important to consider the effect of temperature on the modifying agent. Thermoanalytical study of lithium-containing sorbents obtained on the basis of thermo-activated aluminum hydroxide and lithium citrate showed that the synthesis technology significantly affects the modificator behavior at elevated temperatures: mixture heating results in dehydration of lithium citrate. The absence of CO and CO₂ (according to mass spectrometric analysis) after heating of the samples to 250°C proves that deep decomposition of the modificator on the surface does not occur.