| Autor: |
S. John Peter, S. Sampath, N. Thiagarajan, M. Nagalingam, G. Subramanian, R. Palanisamy, S. Pushpavanam, K. C. Narasimham, M. Sadagopalan, P. Subbiah, H. V. K. Udupa |
| Rok vydání: |
2007 |
| Předmět: |
|
| Zdroj: |
Journal of Applied Chemistry and Biotechnology. 24:43-47 |
| ISSN: |
0375-9210 |
| DOI: |
10.1002/jctb.2720240105 |
| Popis: |
Potassium chlorate, which is used mainly in the manufacture of matches, was prepared by the electrolytic oxidation of potassium chloride in an 800 A cell using graphite substrate lead dioxide anode and stainless steel cathode. The cell was operated at an anode current density of 5 A/dm2, a temperature of 55 to 60 °C and a pH of 6.0 to 7.0. A current efficiency of 82 to 85% was obtained and an assay yield of 77% was realised for the recrystallised product. The cell voltage was 3.2 to 3.3 V with an energy consumption of 6.3 to 6.5 kWh (d.c.)/kg of potassium chlorate produced. The cell effluent, being clear and free from suspended impurities, could be processed further without filtration and pure potassium chlorate (>99%) was obtained by recrystallisation. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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