Dr. Alex Tivadze
1.Cholokashvili St, Tbilisi, Georgia
Tel: +(995 32) 74 10 13
E-mail: rcsr@gtu.edu.ge
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Dr. Alex Tivadze 1.Cholokashvili St, Tbilisi, Georgia Tel: +(995 32) 74 10 13 E-mail: rcsr@gtu.edu.ge
|
Education
1948- graduated from the Tbilisi State University, Department of Chemistry.
1954 – Degree of Candidate of Sciences. “Thesis: Investigation of adsorption and structure of synthesized sorbents obtained from the Kisatibi dolomites”
Research and Teaching
1956-1962 – Lecturer at the Gori pedagogical Institute; General Chemistry, Analytical chemistry, Physical Chemistry, Colloid Chemistry.
1962 current - Lecturer of non-organic chemistry at the Georgian Technical University
Dr. Tivadze’s research efforts focus on the synthesis of sorbents and artificial zeolites. Example research areas and applications include:
 | Study of the artificial sorbents obtained from dolomites. Specific surface, of the materials obtained, varies from 20m2 /g to 400m2 /g . |
| Preparation of clay suspensions for needs of oil wells. |
| Production of synthesized zeolites from natural raw material and study of their adsorption properties and structure. |
| Influence of radiation on sorption parameters of the synthesized zeolites and artificial sorbents. |
| Isomerization of metaxilode on decationized synthesized zeolite of type X. |
| Essential characterization of shape and system of pores of sorbents by the developed method of sorption hysteresis analysis. |
Researche Direction
Dr. Tivadze’s conducted and current research involves the areas of
Synthetic zeolites produced from natural raw material. The following types of zeolites have been obtained via the hydrothermal synthesis: A, faujasite, hydrosodalite, chabazite (rhombic and hexagonal), K-I (H), F, T, E, I, Z, W (K-M, K-H). Amorphous alumosilicate - permutite and artificial sorbents were also produced from the local (Georgian) diatomite. As initial raw materials for the above silicates were used diatomites from different deposites: Trepel, Opona, Kaolin and two bentonite clay deposites in Georgia. Sorptive power of the synthesized zeolites with regard water vapor and benzol have been studied. Samples of our A type zeolite and faujasite better adsorb water at low pressure (at 0.8mm and 1.8mm) of vapor than the zeolites produced by LINDE 4Ĺ. Our samples adsorb 15-16 mM/g against 11-12mM/g in case of samples of LINDE 4Ĺ.
Structure of sorption hysteresis for vaporous sorbates. Experimental method for the analysis of sorption hysteresis was developed that makes it possible to characterize the shape of pores and their system.
Determination of bond strength peculiarities for water molecules in crystalline hydrate by sorption process. It has been established that not all molecules of water in crystalline hydrates are not bound with the molecules of the latter with the same bond strength. Coloring of the crystals of hydrates synchronously vary versus the number of water molecules. It makes it possible to determine the number of water molecules causing the coloring of the crystals.
Acid- and alkali-insoluble (at room temperature), colored powders of clays have been produced that can be applied for coating of construction materials to make them more resistant to environment.
New version of periodic table with extrapolated structures of electron shells and corresponding orbital radiuses for hypothetical elements was created based on structure of electron taking into consideration the regularity of alteration of binding energy of nucleons in atomic nucleus. The hypothetical, 170th element of the table is taken as margin for existence of matter in form of chemical substance .
Dr. Tivadze has authored/coauthored over 47 reports and publications and has two Inventor’s Certificates of the USSR.