PURIFICATION OF ALKALINE ELECTROLYTE FROM DISSOLVED REACTION PRODUCTS DURING WORK OF THE AIR-ALUMINUM CHEMICAL CURRENT SOURCE
| Autor: | N. S. Okorokova, E. V. Suvorova, A. A. Farmakovskaya, A. V. Perchenok |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Periódico Tchê Química. 16:337-350 |
| ISSN: | 2179-0302 1806-0374 |
| DOI: | 10.52571/ptq.v16.n33.2019.352_periodico33_pgs_337_350.pdf |
| Popis: | The relevance of the article is based on the fact that the state of work on the creation of power sources (PS) with AA chemical current sources (CCS) is at the stage of development and testing of prototypes. The purpose of this article is to calculate dimensions of the electrolyte circuit and the crystallizer. There were experimental studies of the decomposition kinetics of the process solutions of potassium aluminate in the range of temperatures and compositions corresponding to operating conditions with PS AA CCS for various purposes. This study presents the results of applying various methods of cleaning an alkaline electrolyte from dissolved reaction products formed during the operation of an air-aluminum (AA) chemical current source (CCS). The kinetic parameters of decomposition of aluminate solutions were experimentally determined, depending on temperature, the concentration of dissolved aluminum, concentration of initial aluminum hydroxide and the size of the first surface. The dimensions of the electrolyte purification systems from dissolved reaction products — electrolyte circuit and crystallizer — were calculated, which significantly increased the time continuous operation of power sources (PS) based on AA CCS. It was demonstrated that for a 100 W power supply, the crystallizer volume should be 1.3 l with initial concentration of 20 % of mass. The mass of water consumed during the operation of the PS for 6 hours is 1.4 kg. |
| Databáze: | OpenAIRE |
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