High-Temperature Sulfuric Acid Converter Matte Pressure Leaching / Karimov K. A.,Kritskii A. V.,Elfimova L. G.,Naboichenko S. S. // METALLURGIST. - 2015. - V. 59, l. 7-8. - P. 723-726.

ISSN/EISSN:

0026-0894 / 1573-8892

Type:

Article

Abstract:

Over the years of mining nickel and copper deposits, they have become more and more multicomponent. In view of this, it is necessary it is necessary to convert traditional pyrometallurgical schemes for processing sulfide raw material into more complex schemes, i.e., hydrometallurgical or combined. This articles provides results of studying copper-nickel converter matte processing on the basis of sulfuric acid pressure leaching. Stratgraphics software is used for planning experiments and processing results. The effect of temperature and oxygen pressure on leaching indices is studied. It is established that with low oxygen pressure leaching of nickel into solution does not exceed 70\% regardless of process temperature. With increased oxygen pressure (0.43-0.85 MPa) and temperature (100-125A degrees C), nickel extraction reaches 68-90\%. For 180 min leaching with p (O2) = 0.43-0.85 MPa and 120-140A degrees C, nickel extraction reaches 97-99\%. Studies of iron show that its minimum extraction into solution reaches 30\% with the following parameters: t = 140-144A degrees C, p (O2) = 0.42-0.73 MPa. Subsequent reduction in oxygen pressure in the system leads to an increase in iron extraction into solution.

Author keywords:

converter matte; pressure leaching; nickel; copper; iron; cobalt; extraction

DOI:

10.1007/s11015-015-0165-7

Web of Science ID:

ISI:000366156200026

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	NOV
Publisher	SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
EISSN	1573-8892
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	kirill\_karimov07@mail.ru sibwin13@rambler.ru
ResearcherID-Numbers	Каримов, Кирилл/F-2051-2017 Naboichenko, Stanislav/T-4497-2017
ORCID-Numbers	Naboichenko, Stanislav/0000-0003-0838-8372
Number-of-Cited-References	6
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	10
Journal-ISO	Metallurgist
Doc-Delivery-Number	CY1HB