scholarly journals Investigation of the leaching process of rare-earth metals from the black shale ores of greater karatau

Author(s):  
O.S. Baigenzhenov ◽  
◽  
S.B. Yulussov ◽  
A.T. Khabiyev ◽  
M.M. Sydykanov ◽  
...  
2017 ◽  
Vol 35 (10) ◽  
pp. 1008-1013 ◽  
Author(s):  
Chunfa LIAO ◽  
Zhenyuan LI ◽  
Yanliang ZENG ◽  
Jingyuan CHEN ◽  
Liqin ZHONG ◽  
...  

Rare Metals ◽  
2014 ◽  
Vol 34 (3) ◽  
pp. 195-201 ◽  
Author(s):  
N. M. Shokobayev ◽  
C. Bouffier ◽  
T. S. Dauletbakov

Author(s):  
A. T. Khabiyev ◽  
◽  
O. S. Baigenzhenov ◽  
S. B. Yulussov ◽  
M. S. Akbarov ◽  
...  

This paper presents the results of physical and chemical investigation of black shale ore, as well as the investigation of combination of hydro- and pyrometallurgical methods in the sintering process of black shale ore with ammonium hydrosulfate to convert metals into water-soluble form. The homogeneous composite of black shale ore taken for the study consists of 67 % SiO2, 18 % C and 3 % H2O, 0.683 % V, 0.0415 Mo, 0.0148 % U3O8 and other components. Thermogravimetric analysis of sintering of carbon-silica ore with ammonium hydrosulfate in the presence of sulfuric acid was performed in the temperature range 20-1000 °C. It is established that at low-temperature sintering of ore with hydrosulfate ammonium after further leaching with sulfuric acid solution the extraction of uranium, vanadium, molybdenum and rare earth metals is 98.2 %, 91.3 %, 82.2% and 78.3 % respectively. The optimal leaching temperature is 90 °C, the ratio S: L = 1:3, and the leaching time is 2 hours.


1979 ◽  
Vol 40 (C5) ◽  
pp. C5-260-C5-261 ◽  
Author(s):  
M. Müller ◽  
E. Huber ◽  
H.-J. Güntherodt

1980 ◽  
Vol 41 (C1) ◽  
pp. C1-25-C1-31 ◽  
Author(s):  
N. S. Dixon ◽  
L. S. Fritz ◽  
Y. Mahmud ◽  
B. B. Triplett ◽  
S. S. Hanna ◽  
...  

2015 ◽  
Vol 53 (9) ◽  
pp. 637-641
Author(s):  
Chul-Woo Nam ◽  
Kyung-Ho Park ◽  
Hyun-Ho Kim ◽  
Jin-Tae Park

1963 ◽  
Vol 79 (2) ◽  
pp. 263-293 ◽  
Author(s):  
E.M. Savitskii ◽  
V.F. Terekhova ◽  
O.P. Naumkin

1964 ◽  
Vol 82 (3) ◽  
pp. 449-498 ◽  
Author(s):  
Konstantin P. Belov ◽  
R.Z. Levitin ◽  
S.A. Nikitin
Keyword(s):  

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