A flotation combined extraction process for improving the whiteness of phosphogypsum

• Autorzy: Li Jiangli , Guo Yongjie , Fan Peiqiang , Li Haibin , Chen Ciyun , Xu Shuai , Du Lingpan

Identyfikatory

DOI

10.37190/ppmp/170043

• Języki publikacji: EN

Abstrakty

EN

Every year, the production of industrial phosphoric acid generates more than 100 Tg of phosphogypsum (PG), leading to significant environmental damage and the occupation of a vast amount of land space. The urgent need to explore applications for PG has become increasingly apparent. However, impurities such as organic substances, slime, phosphorite, and SiO₂ reduce the whiteness of PG, making it difficult to utilize for high-value applications. To address this issue, this study employed a two-stage flotation process to remove the majority of impurities, including SiO₂, organic substances, and fine slime adhered to the surface of PG particles. The raw PG sample was first sieved to remove some SiO₂ particles. After flotation, sulfuric acid and tributyl phosphate were introduced to decompose the PG particles and remove the impurities wrapped inside. Following this flotation combined extraction process, the whiteness of the PG sample improved from 54.1% to 92.9%, meeting the requirements for building walls and filters.

Słowa kluczowe

EN

phosphogypsum; whiteness; desilication; high-value utilization; floatation; extraction

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2023
• Tom: Vol. 59, iss. 3
• Strony: art. no. 170043
• Opis fizyczny: Bibliogr. 32 poz., rys., tab., wykr.

Twórcy

autor

Li Jiangli

• National Engineering and Technology Center for the Development & Utilization of Phosphorous Resources, Kunming 650600, Yunnan, PR China
• Yunnan Phosphate Chemical Group Co. Ltd, Phosphate Resources Engineering Research Branch, Kunming 650113, China

autor

Guo Yongjie

• National Engineering and Technology Center for the Development & Utilization of Phosphorous Resources, Kunming 650600, Yunnan, PR China
• Yunnan Phosphate Chemical Group Co. Ltd, Phosphate Resources Engineering Research Branch, Kunming 650113, China

autor

Fan Peiqiang

• National Engineering and Technology Center for the Development & Utilization of Phosphorous Resources, Kunming 650600, Yunnan, PR China
• Yunnan Phosphate Chemical Group Co. Ltd, Phosphate Resources Engineering Research Branch, Kunming 650113, China

autor

Li Haibin

• National Engineering and Technology Center for the Development & Utilization of Phosphorous Resources, Kunming 650600, Yunnan, PR China
• Yunnan Phosphate Chemical Group Co. Ltd, Phosphate Resources Engineering Research Branch, Kunming 650113, China

autor

Chen Ciyun

• National Engineering and Technology Center for the Development & Utilization of Phosphorous Resources, Kunming 650600, Yunnan, PR China
• Yunnan Phosphate Chemical Group Co. Ltd, Phosphate Resources Engineering Research Branch, Kunming 650113, China

autor

Xu Shuai

• National Engineering and Technology Center for the Development & Utilization of Phosphorous Resources, Kunming 650600, Yunnan, PR China
• Yunnan Phosphate Chemical Group Co. Ltd, Phosphate Resources Engineering Research Branch, Kunming 650113, China

autor

Du Lingpan

• National Engineering and Technology Center for the Development & Utilization of Phosphorous Resources, Kunming 650600, Yunnan, PR China
• Yunnan Phosphate Chemical Group Co. Ltd, Phosphate Resources Engineering Research Branch, Kunming 650113, China

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).