METHOD OF PREPARING REFRACTORY METALS FROM LOPARITE CONCENTRATE
FIELD: hydrometallurgy. SUBSTANCE: process includes grinding of concentrate to particle size at least 0.075 mm, size separation, stripping of loparite concentrate with concentrated nitric acid at atmosphere pressure and temperature above 100 C, hydrofluoric acid-assisted formation of tantalum and ni...
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Main Authors | , |
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Format | Patent |
Language | English Russian |
Published |
20.04.2000
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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