Solvent extraction of zinc, manganese, cobalt and nickel from nickel laterite bacterial leach liquor using sodium salts of TOPS-99 and Cyanex 272

2016 ◽  
Vol 26 (1) ◽  
pp. 301-309 ◽  
Author(s):  
R.K. MISHRA ◽  
P.C. ROUT ◽  
K. SARANGI ◽  
K.C. NATHSARMA
2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Satunuri Venkateswar Rao ◽  
Dong Hyo Yang ◽  
Jeong Soo Sohn ◽  
Soo-Kyung Kim

Solvent extraction (SX) separation of Al from Ni sulphate leach liquor (LL) of spent Raneynickel catalyst containing 0.12 M Al and 1.448 M Ni using organophosphorus extractants has been investigated. Optimization of process conditions includes aqueous pH, extractant concentration, phase ratio, and stripping. Comparison of Al extraction efficiency with 0.45 M extractant concentration for TOPS 99, PC 88 A, and Cyanex 272 at an equilibrium pH of 2.23 was 81.8%, 98.6%, and 75%, respectively. The corresponding coextraction of Ni was 0.65, 0.6, and 0.9. Among the three extractants screened, PC 88A showed better extraction efficiency for Al at lower pH values than the others. Using 0.45 M PC 88 A, extraction isotherm was obtained at an aqueous-to-organic (A : O) phase ratio of 1 : 1–3 and O : A ratio of 1 : 1–5, which predicted possible separation of Al in 2 stages at A/O ratio of 2. Quantitative stripping was achieved by H2SO4.


2018 ◽  
Vol 191 ◽  
pp. 116-121 ◽  
Author(s):  
Humma Akram Cheema ◽  
Sadia Ilyas ◽  
Shafaq Masud ◽  
Muhammad Ahmad Muhsan ◽  
Iftikhar Mahmood ◽  
...  

2021 ◽  
pp. 105722
Author(s):  
Kuifang Zhang ◽  
Lili Qiu ◽  
Jinzhang Tao ◽  
Xiaocong Zhong ◽  
Zhencong Lin ◽  
...  

2014 ◽  
Vol 150 ◽  
pp. 173-177 ◽  
Author(s):  
Alexandre Silva Guimarães ◽  
Priscila Siqueira da Silva ◽  
Marcelo Borges Mansur

2021 ◽  
Vol 160 ◽  
pp. 106691
Author(s):  
Adriana Johanny Murcia Santanilla ◽  
Paula Aliprandini ◽  
Jaqueline Benvenuti ◽  
Jorge Alberto Soares Tenorio ◽  
Denise Crocce Romano Espinosa

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