{"title":"Modelling the Sublimation-Desublimation Processes for Production of Ultrafine Powders","authors":"V. Golubev, A. Dosmakanbetova, A. Brener","volume":79,"journal":"International Journal of Materials and Metallurgical Engineering","pagesStart":516,"pagesEnd":520,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/16355","abstract":"
The purpose of this work is to establish the theoretical
\r\nfoundations for calculating and designing the sublimationcondensation
\r\nprocesses in chemical apparatuses which are intended
\r\nfor production of ultrafine powders of crystalline and amorphous
\r\nmaterials with controlled fractional composition. Theoretic analysis
\r\nof the primary processes of nucleation and growth kinetics of the
\r\nclusters according to the degree of super-saturation and the
\r\nhomogeneous or heterogeneous nature of nucleation has been carried
\r\nout. The engineering design procedures of desublimation processes
\r\nhave been offered and tested for modification of the Claus process.<\/p>\r\n","references":"
[1] Lamminen E., Isherwood H., Effect of process parameters on ultrafine\r\nand fine particles emissions.Chemical Engineering Transactions,\r\nVol.17, 2009, pp. 729-735.\r\n[2] Kashchiev D., Nucleation: Basic Theory with Applications, Butterworth\r\nHeinemann, Oxford, UK, 2000.\r\n[3] Farjoun Y., Neu J.C., Exhaustion of nucleation in a closed system,\r\nPhys. Rev.,E78, 2008, pp.1-7.\r\n[4] Schmelzer J.W. Eds., Nucleation Theory and Applications, Willey-\r\nVCH Verlag GmbH & Co.KGaA, Weinheim, 2005.\r\n[5] Pack D.J., Elemental Sulphur Formation in Natural Gas Transmission\r\nPipelines, PhD Thesis, University of Western Australia, 2005.\r\n[6] Wattis J. A. D., An introduction to mathematical models of\r\ncoagulation-fragmentation processes: a discrete deterministic meanfield\r\napproach, Physica D, 222, 2006, pp. 1-20.\r\n[7] Dosmakanbetova A., Methodology of Calculating and Designing the\r\nSublimation-Condensation Apparatuses for Ultrafine Powders\r\nProduction, PhD Thesis, State University of South Kazakhstan, 2010.<\/p>\r\n","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 79, 2013"}