Effects and mechanism of Bayer red mud on co-reduction with a saprolitic laterite ore to prepare ferronickel

• Autorzy: Wang Xiaoping , Sun Tichang , Wu Shichao , Hu Tianyang , Rong Lingkun

Identyfikatory

DOI

10.5277/ppmp19083

• Języki publikacji: EN

Abstrakty

EN

Co-reduction of a saprolitic laterite and waste Bayer red mud was investigated to prepare ferronickel powder. The synchronous reduction and comprehensive recovery of nickel and iron in the low-grade laterite ores and iron in the red mud were realized. At the red mud dosage of 50 wt%, ferronickel powder with nickel and iron grades of 5.58 wt% and 89.91 wt% was obtained. The corresponding nickel and total iron recoveries were 93.11 wt% and 90.23 wt%, respectively. The red mud enhanced the nickel recovery of the saprolitic laterite ore evidently, attributing to the formation of low-melting anorthite, omphacite, and diopside during co-reduction. This led that NiO in the saprolitic ore was released. Meanwhile, obvious melting phenomenon of the roasting system was appeared, enhancing the growth of the ferronickel particles.

Słowa kluczowe

EN

red mud; laterite ore; co-reduction; ferronickel powder

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2020
• Tom: Vol. 56, iss. 4
• Strony: 641--652
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Wang Xiaoping

• School of Mining and Coal, Inner Mongolia University of Science and Technology, Baotou 014010, China
• School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China

autor

Sun Tichang

• School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China

autor

Wu Shichao

• School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China

autor

Hu Tianyang

• State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China

autor

Rong Lingkun

• School of Mining and Coal, Inner Mongolia University of Science and Technology, Baotou 014010, China

Bibliografia

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