Flotation performance of a novel collector, ethyl o-mesitylsulfonylacetohydroxamate, for bastnaesite ores

• Autorzy: Di Yuli , Liu Xiankui , He Xia , Huang Haiyan , Cheng Wang , Jiao Yu

Identyfikatory

DOI

10.37190/ppmp/185550

• Języki publikacji: EN

Abstrakty

EN

Existing collectors used in the flotation process of bastnaesite ores are characterized by the poor flotation performance and low recovery. In this paper, from the perspective of molecular structure, ethyl O-mesitylsulfonylacetohydroxamate (C1) was selected as a novel collector for bastnaesite ores, and compared with the most commonly used collector, salicylhydroxamic acid (C2), in the flotation test with bastnaesite ore with fine mineral particles, complex embedding and a high mud content. The flotation test confirmed that C1 had the better collection ability and flotation performance than C2. Then, the adsorption mechanisms between collectors (C1 and C2) and bastnaesite surface were explored based on first principles thinking. The adsorption energies between collectors (C1 and C2) and the (110) plane of bastnaesite were respectively calculated as -1.79 eV and -1.44 eV and corresponding adsorption heights were respectively 1.65 Å and 2.43 Å. These data indicated that C1 had the better affinity to the (110) plane of bastnaesite and the better binding. The calculation results of partial density of states (PDOS) showed that both collectors underwent significant orbital hybridization with the (110) plane of bastnaesite, suggesting strong electronic interactions.

Słowa kluczowe

EN

bastnaesite ore; flotation; density functional theory; surface adsorption

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2024
• Tom: Vol. 60, iss. 1
• Strony: art. no. 185550
• Opis fizyczny: Bibliogr. 49 poz., rys., tab., wykr.

Twórcy

autor

Di Yuli

• College of Science, Xichang University, Xichang 615000, China

• https://orcid.org/0000-0003-1557-5571

autor

Liu Xiankui

• College of Science, Xichang University, Xichang 615000, China

autor

He Xia

• College of Science, Xichang University, Xichang 615000, China

• https://orcid.org/0009-0005-7916-145X

redaktor

Zhang Hao

• College of Science, Xichang University, Xichang 615000, China

autor

Huang Haiyan

• College of Science, Xichang University, Xichang 615000, China

• https://orcid.org/0009-0002-3786-6353

autor

Cheng Wang

• College of Science, Xichang University, Xichang 615000, China

• https://orcid.org/0009-0006-1269-999X

autor

Jiao Yu

• College of Science, Xichang University, Xichang 615000, China

• https://orcid.org/0009-0008-8212-0933

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