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Information × Registration Number 0213U002593, 0112U003650 , R & D reports Title Development of scientific basis for the production of the new generation of multipurpose sorbents based on natural silicates mosified by cationic surfactants and polycations. popup.stage_title Head Tarasevich Yuri Ivanovych, Registration Date 31-01-2013 Organization A.V Dumansky Institute of Colloid Chemistry and Water Chemistry popup.description2 Goal of research - to lay the fundamentals for the development of new functionalised sorbents based on natural layer silicates possessing the complex of properties necessary for their application in various fields of agroindustrial complex and science. Research objects - adsorbents: natural and modified layer silicates; modifiers: cationic surfactants and cationic polyelectrolytes; adsorbates: water, hexane, nitrogen, anionic and non-ionic surfactants. Methods of research - high performance liquid chromatography; atomic absorption spectrophotometry; low-temperature adsorption/desorption; quantum chemistry; molecular statistics; adsorption; extraction photometry; sorption photometry; calorimetry. Equipment - liquid chromatograph HP 1050 (DAD), atomic absorption spectrophotometer 3 115 M 1, device NOVA 220e, vacuum adsorption device, microcalorimeter Calve, personal computer. Theoretical and practical results - Theoretical and practical results – modifier/matrix pairs are selected which exhibit the structural correspondence (complementarity) between the mineral matrix and modifier; the methodics for the preparation of new complementary modified sorbents is developed and such sorbents are prepared; ab initio quantum chemical method is used to determine structural and energetic characteristics of micro-clusters which are formed during the adsorption of cationic surfactants and polyelectrolytes on the active surface centres of layer silicate and the hydration of adsorbed molecular ion. Novelty - for the first time ever the scientific bases of the preparation of layer silicates complementary modified by cationic surfactants and polycations are developed, and the prospects for the use of these materials in various practical and scientific applications are shown. Efficiency of implementation - the developed methods are capable for the preparation of efficient complementary modified sorbents based on domestic raw materials with the labour efforts lower as compared to those necessary for the production of sorbents with similar properties using the existing methods. Field of use - scientific research; agroindustrial complex; environment protection. Product Description popup.authors Іванова Зінаїда Григорівна Аксененко Євген Володимирович Жукова Альбіна Іванівна Крисенко Дмитро Анатолійович Поляков Валерій Омелянович Трифонова Марина Юріївна popup.nrat_date 2020-04-02 Close