Reverse flotation of iron ore using amphoteric surfactant: 2-((2(decyloxy)ethyl)amino)lauric acid

• Autorzy: Luo Binbin , Zhu Yimin , Sun Chuanyao , Li Yanjun , Han Yuexin

Identyfikatory

DOI

10.37190/ppmp/135441

• Języki publikacji: EN

Abstrakty

EN

2-((2-(decyloxy)ethyl)amino)lauric acid (C10H21CH(NH(CH2)3OC10H21)COOH, (LDEA), a novel amphoteric surfactant, has been first utilized as the collector for on-site the reverse flotation of Anqian mixed magnetic concentrates. The separation performances were investigated systematically by flotation conditioning tests, open-circuit flowsheet experiment, and locked cycle flowsheet test. The flotation condition test's results showed that the optimal roughing conditions were pulp pH of 10, starch dosage 1000 g/Mg, and LDEA dosage of 500 g/Mg at 25 °C. Under the optimized flotation conditions, through one roughing - three scavengings locked cycle flowsheet, the iron concentrate with a total iron grade of 68.08% and recovery of 88.20% was obtained. In contrast, the iron grade of the tailings was only 12.32%. Compared with the flotation results of anionic commercial surfactant RA-715 used as the collector, the LDEA has a better separation performance. The iron grade and recovery increased by 0.07% and 0.86% in the iron concentrate, and the grade of the tailings decreased 3.72%, respectively. Besides, the LDEA possesses more advantages, such as a simple flotation process, no activator (CaO) addition, lower collector consumption, and lower pulp temperature. The study revealed that the novel amphoteric surfactant LDEA was an effective flotation collector with good collecting and separation ability on natural iron ores at a comparatively lower temperature.

Słowa kluczowe

EN

2-((2-(decyloxy)ethyl)amino)lauric acid; iron ores; reverse flotation; amphoteric surfactant; low temperature

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2021
• Tom: Vol. 57, iss. 3
• Strony: 73--83
• Opis fizyczny: Bibliogr. 29 poz., rys. kolor.

Twórcy

autor

Luo Binbin

• College of Resource and Civil Engineering, Northeastern University, Shenyang 110819, PR China
• State Key Laboratory of Mineral Processing, Beijing 100160, PR China

• https://orcid.org/0000-0003-3438-8392

autor

Zhu Yimin

• College of Resource and Civil Engineering, Northeastern University, Shenyang 110819, PR China

autor

Sun Chuanyao

• BGRIMM Technology Group, Beijing 100160, PR China

autor

Li Yanjun

• College of Resource and Civil Engineering, Northeastern University, Shenyang 110819, PR China

autor

Han Yuexin

• College of Resource and Civil Engineering, Northeastern University, Shenyang 110819, PR China

Bibliografia

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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).