Comparison of the depression effect of two thiol depressants on the separation of specularite and aegirite

• Autorzy: Li Mingyang , Zhang Chen , Gao Xiangpeng , Xie Xian , Tong Xiong

Identyfikatory

DOI

10.37190/ppmp/152164

• Języki publikacji: EN

Abstrakty

EN

In this work, two thiol-type reagents, thioglycolic acid (TGA) and mercaptopropionic acid (MPA), were firstly exploited and compared as aegirite depressants with sodium oleate (NaOl) as the collector to separate specularite from aegirite by flotation. The adsorption performances and mechanisms of TGA and MPA on aegirite surface were investigated via flotation experiments, Zeta potential tests, adsorption measurements, contact angle dimensions, and surface characterizations. The results of flotation indicated that TGA and MPA exhibited a considerable depression impact on the flotation of aegirite but little effect on specularite. TGA depicted more excellent depression performance than MPA, which was confirmed by HLB calculation. The results demonstrated that TGA and MPA favorably adsorbed on aegirite surface instead of specularite, hindering the subsequent adsorption of NaOl on specularite and resulting in the surface being hydrophilic. XPS results revealed that TGA and MPA were significantly adsorbed on the surface of aegirite through an interaction between the carboxyl and thiol groups of the depressants and the Si and Fe on the surface of aegirite.

Słowa kluczowe

EN

aegirite; specularite; flotation; depressant; iron-bearing silicate

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2022
• Tom: Vol. 58, iss. 6
• Strony: art. no. 152164
• Opis fizyczny: Bibliogr. 29 poz., rys., wykr.

Twórcy

autor

Li Mingyang

• Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming 650093, China
• School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan 243002, China

autor

Zhang Chen

• School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan 243002, China

autor

Gao Xiangpeng

• School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan 243002, China

autor

Xie Xian

• Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China

autor

Tong Xiong

• Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).