Pressure leaching of copper-nickel converter matte in sulfuric acid media

2018 ◽  
pp. 24-28 ◽  
Author(s):  
L. G. Elfimova ◽  
◽  
K. A. Karimov ◽  
A. V. Kritskiy ◽  
S. S. Naboychenko ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Pressure Leaching ◽  
Acid Media ◽  
Copper Nickel ◽  
Converter Matte ◽  
Nickel Converter

Low-Temperature Pressure Leaching of Converter Matte in Sulfuric Acid Solutions

Metallurgist ◽  
2017 ◽  
Vol 61 (3-4) ◽  
pp. 238-242 ◽  
Author(s):  
K. A. Karimov ◽  
A. V. Kritskii ◽  
L. G. Elfimova ◽  
S. S. Naboichenko
Keyword(s):  
Sulfuric Acid ◽  
Low Temperature ◽  
Pressure Leaching ◽  
Acid Solutions ◽  
Converter Matte ◽  
Sulfuric Acid Solutions

Thermodynamic modeling of pressure oxidation leaching of copper-nickel converter matte

2019 ◽  
pp. 7-12
Author(s):  
L. G. Elfimova ◽  
◽  
N. G. Ageev ◽  
S. S. Naboychenko ◽  
◽  
...  
Keyword(s):  
Thermodynamic Modeling ◽  
Pressure Oxidation ◽  
Copper Nickel ◽  
Converter Matte ◽  
Nickel Converter

Thermal Expansion of Copper and Nickel Sulfides and their Alloys

2013 ◽  
Vol 334-335 ◽  
pp. 55-59 ◽  
Author(s):  
Evgeny N. Selivanov ◽  
O.V. Nechvoglod ◽  
R.I. Gulyaeva
Keyword(s):  
Thermal Expansion ◽  
Metal Alloys ◽  
Metal Sulfides ◽  
Nickel Matte ◽  
Copper Nickel ◽  
Thermal Expansion Coefficients ◽  
Complex Sulfide ◽  
Converter Matte ◽  
Expansion Coefficients ◽  
Nickel Converter

Thermal expansion coefficients of metal sulfides and their alloys are important for technological processes calculations of sulfide processing materials, for example, the crystallization equipment of nickel and copper-nickel converter matte. The synthesized copper and nickel monosulfide, and nickel and copper-nickel matte have been used as the initial samples. Dilatometric analysis was carried out by dilatometer (Linseis L78 RITA). Differences in the values measured are accounted for by the synthesis samples facilities, the coexistence of several non-stoichiometric sulfide phases and interaction during heating. In the temperature 20-500°C range the coefficients of thermal expansion (α) for the sulfides of copper, nickel and their alloys are changed from 10.4 to 20.610-6 1/K. Changes in the value α are accounted for by phase transitions in sulfide samples at their heating. Considering the properties of the phase components are an additive it is shown the thermal expansion coefficient complex sulfide-metal alloys is possible to calculate.

Pressure Leaching of Chalcopyrite Concentrate: Iron Removal from Leaching Residues

2020 ◽  
Vol 299 ◽  
pp. 1052-1057
Author(s):  
Aleksei Kritskii ◽  
Kirill Karimov ◽  
Stanislav Naboichenko
Keyword(s):  
Sulfuric Acid ◽  
High Temperature ◽  
Materials Processing ◽  
Pressure Leaching ◽  
Acid Media ◽  
Autoclave Treatment ◽  
Oxidative Leaching ◽  
Chalcopyrite Concentrate ◽  
Leaching Residue ◽  
By Products

Autoclave oxidative leaching is one of the most promising hydrometallurgical approaches for copper suplhide materials processing. In previous studies [2–4], the possibility of an efficient autoclave treatment of chalcopyrite concentrate was confirmed. The concentrate has the following chemical composition, %: 21.5 Cu, 0.1 Zn, 26.5 S, 24.5 Fe, 0.05 Pb, 0.04 Ni, 16.2 SiO2 [1]. At high temperature conditions (190–200 °C; 4–6 bar) in sulfuric-acid media during 100–120 min about 98% Cu was extracted. A leaching residue after POX (POX-cake) contained the following compounds, %: 55 Fe2O3, 40 SiO2, 4 MeS2/MeS. Current paper presents the results on purification of POX-cakes from iron by autoclave treatment. Futher ways for by-products (SiO2-cake and FeSO4-solution) processing are sugested.

Substantiation of the Possibility of Hydrometallurgical Processing of a Copper–Nickel Converter Matte

2020 ◽  
Vol 2020 (7) ◽  
pp. 718-722
Author(s):  
A. O. Bol’shikh ◽  
O. I. Tsybin ◽  
M. A. Bol’shikh ◽  
O. G. Kuznetsova ◽  
A. M. Levin
Keyword(s):  
Copper Nickel ◽  
Hydrometallurgical Processing ◽  
Converter Matte ◽  
Nickel Converter

High-Temperature Sulfuric Acid Converter Matte Pressure Leaching

Metallurgist ◽  
2015 ◽  
Vol 59 (7-8) ◽  
pp. 723-726 ◽  
Author(s):  
K. A. Karimov ◽  
A. V. Kritskii ◽  
L. G. Elfimova ◽  
S. S. Naboichenko
Keyword(s):  
Sulfuric Acid ◽  
High Temperature ◽  
Pressure Leaching ◽  
Converter Matte

Properties of CMV cation exchange membranes in sulfuric acid media

2006 ◽  
Vol 284 (1-2) ◽  
pp. 67-78 ◽  
Author(s):  
Le Xuan Tuan ◽  
M. Verbanck ◽  
C. Buess-Herman ◽  
H.D. Hurwitz
Keyword(s):  
Sulfuric Acid ◽  
Cation Exchange ◽  
Acid Media

Beneficiation of titania by sulfuric acid pressure leaching of Panzhihua ilmenite

2014 ◽  
Vol 150 ◽  
pp. 92-98 ◽  
Author(s):  
Linie Jia ◽  
Bin Liang ◽  
Li Lü ◽  
Shaojun Yuan ◽  
Lijuan Zheng ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Pressure Leaching
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