Using of Taguchi Method for Experimental Design of Crystallization Processes of an Oxidant: Tetraethylammonium Chlorochromate (VI) |
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Authors: | Shahriare Ghammamy Monir Rahnama Baghy |
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Institution: | (1) Department of Chemistry, Faculty of Science, Imam Khomeini International University, Ghazvin, Iran |
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Abstract: | Abstract Crystallization of tetraethylammonium chlorochromate (C2H5)4NCrO3Cl], TEACC, with desirable particle size as a performance characteristic was used to illustrate the design procedure. Taguchi
design of experiments (DOE) method has been used for to plan a minimum number of experiments and optimization of crystallization
processes. Four factors, which influence the crystal size, crystal growth and nucleation, were chosen. These factors are concentration,
temperature, type of solvent and method of crystallization. After optimization the results show that concentration is most
effective factor that has largest percent of contribution 53.26% and type of solvent is least effective factor that has smallest
percent of contribution 4.33%. The optimum conditions are vapor diffusion as method, 0.043 g/15 mL for concentration, 0 °C
for temperature and acetonitrile as solvent. These conditions must be produced suitable crystals for single crystal X-ray
diffraction experiment. These results confirmed by experimental data and the crystals of the optimum conditions found to have
suitable properties for single crystal X-ray diffraction. These crystals had sent for single crystal X-ray diffraction and
diffraction data gathered successfully. A red block crystal was mounted on a glass fiber. The X-ray data determined monoclinic
system, space group C2(#5), with a = 12.023(3), b = 7.998(2), c = 14.527(4) ?, β = 114.187(4)°, V = 1274.4(6) ?3 and Z = 4.
Index Abstract The Taguchi design of experiments (DOE) method has been used for to plan a minimum number of experiments and optimization
of crystallization processes.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. |
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Keywords: | Crystallization Processes Experimental Design Taguchi method Tetraethylammonium chlorochromate (VI) |
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