Enrichment of low-grade phosphorites by the selective leaching method

Abstract: The selective leaching method presents a new and innovative approach for the enrichment of low-grade phosphate raw materials. The use of acetic acid as a reagent in the leaching process allows for the selective dissolution of carbonates, potassium-, and aluminum-containing compounds, offering a promising solution for the improvement of the recovery rates of valuable phosphorus compounds. This study presents the results of research on the selective leaching of carbonates from low-grade phosphate raw materials and evaluation of its efficiency using a combination of SEM, energy-dispersion and chemical analysis, X-ray diffraction, differential thermal, IR-Fourier spectroscopic, and mineralogical analysis techniques. The results showed an increase in the content of phosphorus (v) oxide from 14% to 22% through the selective leaching process. The enriched phosphate raw materials were also found to be suitable for the production of phosphorus-containing products. This research highlights the potential of the selective leaching method to overcome the challenges faced in the enrichment of low-grade phosphorites and provide a more efficient and sustainable solution for the industry.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Enrichment of low-grade phosphorites by the selective leaching method ; volume:12 ; number:1 ; year:2023 ; extent:14 ; Green processing & synthesis ; 12, Heft 1 (2023) (gesamt 14)

Contributors, Places and Time

• Creator: Raiymbekov, Yerkebulan ; Abdurazova, Perizat ; Nazarbek, Ulzhalgas

Further information

• DOI: 10.1515/gps-2022-8150
• URN: urn:nbn:de:101:1-2023033114254439263212
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:50 AM CEST