Vekshin V. Purification of exhaust gases from nitrogen oxides in the nitric acid production

An object of the research: Processes reduction of nitrogen oxides with ammonia, which occur on the metal catalyst of the cell structure. An aim of the research: to develop the technology efficient purification of exhaust gases of the absorption in nitric acid production from nitrogen oxides by creating of a metal catalyst of cell structure. Subject of research: features of impregnation of a titanium oxide in salts of platinum metals without the modifier and modification in the monobasic organic acids, physical and chemical laws of the process of recovery of nitrogen oxides with ammonia on catalyst of a cell design. Methods of the research: spectrometry, X-ray diffraction analysis and chemical analysis methods and complex physical and mechanical methods. Theoretical and practical results: research has made it possible to offer the preparation of catalyst technology, which has a low flow resistance, high catalytic activity, thermal stability and mechanical strength. Novelty: have been determined of role of joint effect of formic acid and heat treatment on the platinum recovery from its water solutions; defined technological conditions of the impregnation of the oxide layer in solution of hexachloroplatinic acid; a influence of technological conditions to the catalyst life; have been determined the necessary parameters of a process of reduction of a nitrogen oxides of by means of ammonia on a designed catalyst. Degree of introduction: the work implemented in the educational process of NTU "KhPI". Industry of the use: research results can be used in scientific developments in the field of catalysis, as well as in the chemical industry.