Activation mechanism of tantalum niobium flotation by lead ions in a combined collector flotation system

• Autorzy: He Mingfei , Li Shuangke , Cao Miao , Gao Yude , Bu Hao , Meng Qingbo

Identyfikatory

DOI

10.37190/ppmp/128184

• Języki publikacji: EN

Abstrakty

EN

The effect of lead ions on the flotation activation of tantalum niobium ore (TNO) was studied by micro-flotation, adsorption capacity experiments, solution chemical composition calculations, and infrared spectral analysis. The experimental demonstrated that the combined collector of salicylhydroxamic acid (SHA) and ammonium dibutyl dithiophosphate (ADDP) resulted in a strong collection capacity for TNO in the presence of lead ions. The solution chemistry calculations determined that the dominant source of lead ions in the aqueous solution was Pb(OH)+ at a pH of 8, which was conducive to the adsorption and interaction of SHA and ADDP anions. In the lead ion activation system, the combined reagent co-adsorbed onto the TNO surface, causing a large negative shift in the zeta potential. The co-adsorption mechanism of the combined collector consisted of complex chemisorption between SHA and the TNO surface active particles, while the main adsorption of ADDP is physisorption.

Słowa kluczowe

EN

tantalum niobium ore; Pb2+ ions activation; ammonium dibutyl dithiophosphate; coadsorption

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2021
• Tom: Vol. 57, iss. 1
• Strony: 29--38
• Opis fizyczny: Bibliogr. 27 poz., rys.

Twórcy

autor

He Mingfei

• Guangdong Institute of Resources Comprehensive Utilization

autor

Li Shuangke

• Guangdong Institute of Resources Comprehensive Utilization

autor

Cao Miao

• Guangdong Institute of Resources Comprehensive Utilization

autor

Gao Yude

• Guangdong Institute of Resources Comprehensive Utilization

autor

Bu Hao

• Guangdong Institute of Resources Comprehensive Utilization

autor

Meng Qingbo

• Guangdong Institute of Resources Comprehensive Utilization

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).