Selective recovery of thorium and uranium from leach solutions of rare earth concentrates in continuous solvent extraction mode with primary amine N1923

被引：22

作者：

Hung, Nguyen Trong ^{[1
]}

Thuan, Le Ba ^{[1
]}

Thanh, Tran Chi ^{[2
]}

Thuy, Nguyen Thanh ^{[1
]}

Tra, Doan Thi Thu ^{[3
]}

Do Van, Khoai ^{[4
]}

Watanabe, Masayuki ^{[4
]}

Minh, Pham Quang ^{[2
]}

Than, Hoang Sy ^{[2
]}

Vuong, Nguyen Duc ^{[5
]}

Van Phuc, Dinh ^{[6
]}

Lee, Jin-Young ^{[7
]}

Jeon, Jong Hyuk ^{[7
]}

Jyothi, Rajesh Kumar ^{[7
]}

机构：

[1] VINATOM, Inst Technol Radioact & Rare Elements, 48 Lang Ha, Hanoi, Vietnam

[2] Vietnam Atom Energy Inst, VINATOM, Minist Sci & Technol, 59 Ly Thuong Kiet, Hanoi, Vietnam

[3] Vietnam Acad Sci & Technol, Inst Geol Sci, 84 Chua Lang, Hanoi, Vietnam

[4] Japan Atom Energy Agcy, 2-4 Tokaimura, Ibaraki 3191195, Japan

[5] Quang Binh Univ, 312 Ly Thuong Kiet, Dong Hoi, Quang Binh, Japan

[6] Duy Tan Univ, Inst Fundamental & Appl Sci, Ho Chi Minh City 700000, Vietnam

[7] Korea Inst Geosci & Mineral Resources, Resources Utilizat Div, KIGAM, Daejeon 34132, South Korea

来源：

HYDROMETALLURGY | 2022年 / 213卷

基金：

日本学术振兴会;

关键词：

Recovery; Rare earth concentrate; Thorium; Uranium; Counter-current extraction; Scrubbing; Back-extraction; SEPARATION; AREA; ADU;

D O I：

10.1016/j.hydromet.2022.105933

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A continuous counter-current extraction for the selective recovery of thorium (Th) and uranium (U) from the Yen Phu (Vietnam) rare earth concentrate leach solutions was systematically studied. The primary amine N1923 was used as an extractant which was prepared in the isoparaffin IP-2028 diluent. Thorium and uranium were selectively recovered in a hydrometallurgical circuit established by continuous mixer-settler extraction, scrubbing, and back-extraction at the laboratory scale. The desired purity of Th and U can be achieved by managing the volume ratio of organic to aqueous phase (O/A ratio) in the corresponding steps. Highly pure Th and U were recovered from the pregnant back-extraction liquor and the raffinate, respectively, which have satisfactory properties for further processing of the subsequent nuclear materials.

引用

页数：11

共 39 条

[1] Studies on uranium extraction from leach liquor of the mineralized shear zone at El-Missikat area using tri-n-octylamine [J].

Ahmed, Mohammed Ramadan ;

Mohammed, Hesham Samir ;

El-Feky, Mohamed Galal ;

Abdel-Monem, Yasser Kamal .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2021, 327 (02) :731-743

[2] Recovery of uranium, thorium and rare earth from industrial residues [J].

Amaral, Janubia C. B. S. ;

Sa, Michelle L. C. G. ;

Morais, Carlos A. .

HYDROMETALLURGY, 2018, 181 :148-155

[3] Thorium and uranium extraction from rare earth elements in monazite sulfuric acid liquor through solvent extraction [J].

Amaral, Janubia C. B. S. ;

Morais, Carlos A. .

MINERALS ENGINEERING, 2010, 23 (06) :498-503

[4]

[Anonymous], 2009, IAEATECDOC1613

[5]

[Anonymous], 2015, 7224 NEA OECD

[6]

Balakrishna P., 2012, Nat. Sci, V4, P943, DOI DOI 10.4236/NS.2012.431123

[7] Separation, purification and recovery of thorium from monazite leach liquors by counter-current extraction process [J].

Chung, Kyeong Woo ;

Yoon, Ho-Sung ;

Kim, Chul-Joo ;

Jyothi, Rajesh Kumar .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2020, 324 (01) :245-255

[8] Solvent extraction, separation and recovery of thorium from Korean monazite leach liquors for nuclear industry applications [J].

Chung, Kyeong Woo ;

Yoon, Ho-Sung ;

Kim, Chul-Joo ;

Lee, Jin-Young ;

Jyothi, Rajesh Kumar .

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2020, 83 :72-80

[9] Evidence and uncertainty for uranium and thorium abundance: A review [J].

Degueldre, Claude ;

Joyce, Malcolm J. .

PROGRESS IN NUCLEAR ENERGY, 2020, 124

[10] Processing of the xenotime concentrate of Southwestern Sinai via alkali fusion and solvent extraction [J].

El Hady, Saleh M. ;

Bakry, Ahmed R. ;

Al Shami, Abd Allah S. ;

Fawzy, Mona M. .

HYDROMETALLURGY, 2016, 163 :115-119

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