Waste Water from the Production of Titanium Products as a Raw Material for the Ti(OH)4, NaOH and HCl Production
| Autor: | M. A. Malkova, N A Bykovsky, L. N. Puchkova, E. A. Kantor, N N Fanakova |
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| Rok vydání: | 2021 |
| Předmět: |
Electrolysis
Ecology Sodium technology industry and agriculture chemistry.chemical_element Hydrochloric acid 02 engineering and technology Management Monitoring Policy and Law 010402 general chemistry 021001 nanoscience & nanotechnology Alkali metal 01 natural sciences Pollution 0104 chemical sciences law.invention chemistry.chemical_compound chemistry law Sodium hydroxide Pickling 0210 nano-technology Electrolytic process Nuclear chemistry Titanium |
| Zdroj: | Ecology and Industry of Russia. 25:8-11 |
| ISSN: | 2413-6042 1816-0395 |
| DOI: | 10.18412/1816-0395-2021-2-8-11 |
| Popis: | The study of the spent acidic pickling solution (SAPS) processing is presented. The solution is formed in the process of etching titanium products with hydrochloric acid. The processing includes the stages of neutralizing the SAPS with alkali, filtration and drying of the titanium hydroxide precipitate, electrochemical processing of the filtrate containing sodium chloride in an electrolyzer with ion-exchange membranes. The electrolysis process produces sodium hydroxide and hydrochloric acid. The proposed scheme for processing the SAPS makes it possible to obtain titanium hydroxide, sodium hydroxide and hydrochloric acid. Titanium hydroxide can be used in various industries. Alkali can be used in the SAPS neutralization process. Hydrochloric acid after the adjustment is suitable for use in the etching of titanium products. |
| Databáze: | OpenAIRE |
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