Strengthening effect of a microwave field on sulfurization flotation of hemimorphite

• Autorzy: Jia Kai , Zhai Yichuan , Han Congcong , Jin Yunhao , Lu Tiantian , Si Liang , Li Guosheng , Song Xiangyu , Fan Guixia , Ding Minghui

Identyfikatory

DOI

10.37190/ppmp/200459

• Języki publikacji: EN

Abstrakty

EN

Hemimorphite is a typical silicate zinc oxide mineral characterized by strong hydrophilicity and poor floatability. It is commonly recovered by the “sulfurization pretreatment-xanthate collector flotation” method. However, the Zn2+ in hemimorphite is blocked by SiO42-, making Zn-O bonds difficult to break and preventing the reaction between Zn2+ and S2- in solution. Therefore, enhancing sulfurization is essential for the flotation of hemimorphite. In this study, a microwave field was used for the first time to increase the surface sulfurization of hemimorphite, and the interactions between the minerals and collectors were increased by forming a sulfurization layer on the mineral surface to improve hemimorphite flotation. Compared with the conventional sulfurization pretreatment, microwave field sulfurization pretreatment exhibited better floatability under the same conditions, and the recovery reached 29.82%, which was much higher than that without microwave treatment. The mechanism of hemimorphite sulfurization in the microwave field was investigated with infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and scanning electron microscopy. These results indicated that the microwave field enhanced the surface sulfurization of hemimorphite, and increased the proportions of newly generated sulfides, thus boosting sulfurization flotation of hemimorphite.

Słowa kluczowe

EN

hemimorphite; microwave; sulfurization; activation; flotation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2025
• Tom: Vol. 61, iss. 1
• Strony: art. no. 200459
• Opis fizyczny: Bibliogr. 49 poz., rys., tab., wykr.

Twórcy

autor

Jia Kai

• Zhongyuan Critical Metal Laboratory, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
• Longmen Laboratory, Luoyang, 471000, China
• State Key Laboratory of Mineral Processing, Beijing, 100160, PR China
• School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
• The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou 450001, China

autor

Zhai Yichuan

• School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, PR China

autor

Han Congcong

• Zhongyuan Critical Metal Laboratory, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
• School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, PR China

autor

Jin Yunhao

• School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, PR China

autor

Lu Tiantian

• School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, PR China

autor

Si Liang

• Zhongyuan Critical Metal Laboratory, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
• The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou 450001, China

autor

Li Guosheng

• Zhongyuan Critical Metal Laboratory, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
• The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou 450001, China

autor

Song Xiangyu

• Zhongyuan Critical Metal Laboratory, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
• School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan, 450001, PR China

autor

Fan Guixia

• Zhongyuan Critical Metal Laboratory, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
• The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou 450001, China

autor

Ding Minghui

• China National Gold Group Co., Ltd, Beijing, 100011, PR China

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