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Optimization of the production of thiocarbohydrazide using the Taguchi method by Jiancheng Zhou; Dongfang Wu; Dongsheng Guo is a Engineering article available to read on EtoBox.

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## Abstract **BACKGROUND:** The Taguchi method, a powerful tool for the optimization of quality, was used to improve the yield of thiocarbohydrazide in its synthetic process. An orthogonal array was selected to analyze the effects of the process factors, i.e. reflux time, molar ratio of hydrazine to carbon disulfide and reflux temperature. Experiments were undertaken to confirm the effectiveness of the Taguchi method. **RESULTS:** Through this study, the main factors that affect the yield of thiocarbohydrazide were found, together with the optimal factor levels. It was shown that the reflux temperature was the most significant factor affecting the yield of thiocarbohydrazide, followed by the molar ratio of hydrazine to carbon disulfide. The optimum factor levels were a reflux time of 6 h, molar ratio of hydrazine to carbon disulfide 3.0 and reflux temperature 70 °C. A 92.3% yield of thiocarbohydrazide was obtained at these optimal factor levels. **CONCLUSIONS:** The yield of thiocarbohydrazide can be significantly improved by optimization of the synthetic process factors. The Taguchi method provided a systematic and efficient methodology for this optimization, with far less effort

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Author

Jiancheng Zhou; Dongfang Wu; Dongsheng Guo

Publisher

Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0268-2575)

Published

2010

Language

EN

Field

Engineering (Physical Sciences)