Application of chromatographic plate theory on the weathered crust elution-deposited rare earth ore with carboxylate

• Autorzy: Zhang Zhenyue , Wang Guangshuai , Li Chunhua , Chi Ruan , Long Fei , Chen Zhuo , Chi Xiao Wang , Liu Defeng

Identyfikatory

DOI

10.37190/ppmp/138425

• Języki publikacji: EN

Abstrakty

EN

To improve the leaching process of rare earth and reduce the impurities in the leachate, the carboxylate ammonium, such as ammonium acetate, ammonium citrate and ammonium tartrate, were selected as lixiviant to compare the effects of concentration, flow rate, pH and temperature on leaching mass process of rare earth and aluminum. Meanwhile, the leaching behaviors of rare earth and aluminum leached by three kinds of carboxylate ammonium were analyzed by chromatographic plate theory. The relationship between the flow rate and height equivalent (HETP) could fit well with the Van Deemter equation and there was an optimal flow rate (uopt) for the leaching of the rare earth and aluminum. Besides, the conditions of carboxylate ammonium lixiviant were optimized. The optimum concentrations of ammonium acetate, ammonium tartrate and ammonium citrate were 15 g/L, 25 g/L and 5 g/L respectively, the leaching flow rate was 0.50 mL/min, the pH value was approximatively 7.00 and the leaching temperature was 293 K to 303 K. At these conditions, the mass transfer efficiencies of three ammonium carboxylates for rare earth and aluminum was in the order of ammonium acetate > ammonium tartrate > ammonium citrate. Moreover, the ammonium acetate could commendably inhibit aluminum ions entering the lixivium.

Słowa kluczowe

EN

weathered crust elution-deposited rare earth ore; carboxylate ammonium; mass transfer; theory plate; rare earth

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2021
• Tom: Vol. 57, iss. 4
• Strony: 48--62
• Opis fizyczny: Bibliogr. 39 poz., rys. kolor.

Twórcy

autor

Zhang Zhenyue

• School of XingFa Mining Engineering, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China
• Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China
• Guangdong Provincial Key Laboratory of Mineral Physics and Materials, 510640, Guangdong, China

autor

Wang Guangshuai

• School of XingFa Mining Engineering, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China

autor

Li Chunhua

• School of XingFa Mining Engineering, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China

autor

Chi Ruan

• School of XingFa Mining Engineering, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China
• Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China

autor

Long Fei

• School of XingFa Mining Engineering, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China
• Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China

autor

Chen Zhuo

• School of XingFa Mining Engineering, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China
• Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China

autor

Chi Xiao Wang

• School of XingFa Mining Engineering, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China
• Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China

autor

Liu Defeng

• School of XingFa Mining Engineering, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China
• Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, 430073, Wuhan, Hubei, China

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