| Issue |
E3S Web Conf.
Volume 563, 2024
International Conference on Environmental Science, Technology and Engineering (ICESTE 2024)
|
|
|---|---|---|
| Article Number | 02038 | |
| Number of page(s) | 8 | |
| Section | Civil Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202456302038 | |
| Published online | 30 August 2024 | |
Obtaining ammonium sulfate and calcium carbonate by processing natural gypsum and phosphogypsum
1 Namangan Institute of Engineering - Technological, 160115 Kosonsoy Str, 7 Namangan, Uzbekistan
2 Navoi State University of Mining and Technologies, 210100 Galaba Str. 27, Navoiy, Uzbekistan
3 Institute of General and Inorganic Chemistry, 100170 Mirzo Ulugbek Str. 77a, Tashkent, Uzbekistan
* Corresponding author: temirov-2012@mail.ru
Studying the conversion of local natural gypsum and phosphogypsum, categorized as a byproduct of extracting phosphoric acid (EPA), into ammonium carbonate through a liquid-based method. At the same time, the concentration of ammonium carbonate in an aqueous solution was obtained in the range from 10 to 50%. The norms of ammonium carbonate were 100, 105, 110% relative to stoichiometry. The transfer time of ammonium carbonate to the reaction zone was from 5 to 30 minutes, and the conversion time was also studied in the range from 5 to 30 minutes. The conversion process was carried out at a temperature of 30 to 50°C. The optimal time for the carbonate conversion of gypsum was 30 minutes, and the conversion rate was 95.68 and 96.83%.
© The Authors, published by EDP Sciences, 2024
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