BENEFICIATION | |
Название | Features of material composition and beneficiation processing of Kingash deposit ore |
Автор | Kozyrev S. M., Kravtsova O. A., Maksimov V. I., Koroleva E. V., Motorin Yu. M. |
Информация об авторе | Gipronickel Institute Ltd S. M. Kozyrev, Head of Research and Development Department, e-mail: smk@nikel.spb.su |
Реферат | Material composition study has allowed identifying the said mineralisation’ typical features to be taken into account during metallurgical testing and creation of the optimum process flow-sheet. Flotation process flow-sheet has been developed considering all the peculiarities of the ore feed’ material composition. The developed flow-sheet makes it possible to produce collective copper-nickel concentrate containing up to 9% Ni and 2–3% Cu. Recovery rates are as follows: 50–80% nickel; 20–80% copper; 40–90% noble metals. To decrease losses to fine sulphide inclusions in magnetite, it has been recommended to introduce flotation tails’ magnetic separation into the process flow-sheet. Pilot tests based on the representative ore sample with 0.45% Ni and 0.157% Cu grade have been performed according to the developed flow-sheet. The concentrate produced contained, %: 8.18 Ni; 1.45 Cu; 0.243 Co; 3.05 Pt; 2.01 Pd; 1.66 Au; 13.88 Ag. At that, the said metals’ recovery rates made, %: 61.6, 31.20, 53.70, 65.6, 48.1, 48.9 and 54.4, respectively. In the course of the pilot tests, flotation/magnetic separation flow-sheet was tested making it possible to increase nickel recovery rate by 0.95%, while that of copper and cobalt by 0.48% and 1.01%, respectively. At the Gipronickel Institute’ laboratory facilities studies in processing of the produced concentrate using pyrometallurgical and hydrometallurgical methods have been performed. |
Ключевые слова | Copper-nickel ore, ore dissemination, principal ore minerals, valerite, beneficiation, flotation, magnetic separation, pilot tests, geometallurgical mode ling. |
Библиографический список | 1. Fedorenko V. A., Stekhin A. I., Kravtsova O. A. and etc. Razvedka i okhrana nedr — Exploration and conservation of mineral resources. 2006. No. 8. pp. 32–37. |
Language of full-text | русский |
Полный текст статьи | Получить |