Development of Electrochemical Dissolution Method for Nickel Sulfide-Metal Alloy with Cathodic Nickel-Copper Precipitate Formation

Metallurgist ◽  
2021 ◽  
Author(s):  
E. N. Selivanov ◽  
O. V. Nechvoglod
Keyword(s):  
Nickel Sulfide ◽  
Metal Alloy ◽  
Electrochemical Dissolution ◽  
Dissolution Method ◽  
Precipitate Formation ◽  
Nickel Copper

Recycling of Waste Hard Alloy via Electrochemical Dissolution Method

2012 ◽  
Vol 610-613 ◽  
pp. 2263-2267
Author(s):  
Gui Zhong Zhou ◽  
Zhao Feng Wang ◽  
Xuan Wang ◽  
Shao Xiang Li
Keyword(s):  
Hard Alloy ◽  
Recovery Rate ◽  
Chloride Solution ◽  
Cobalt Chloride ◽  
Dissolution Process ◽  
Electrochemical Dissolution ◽  
Cobalt Powder ◽  
Dissolution Method

Electrochemical dissolution method was used to achieve the recycling of waste hard alloy. Tungsten, cobalt powder and cobalt salts can be obtained through the control of suitable conditions of electric dissolution process ,such as cleaning of waste hard alloy, electric dissolution of waste hard alloy, knocking the basket, treatment of cobalt chloride etc. Tungsten and cobalt chloride solution can be obtained directly by this method, and thus to obtain the cobalt powder and cobalt salts. Recovery rate of WC and cobalt were above 98% and 92-95%.

scholarly journals Geology and crystallization conditions of the Särkiniemiintrusion and related nickel-copper ore, central Finland – implications for depth of emplacement of 1.88 Ga nickel-bearing intrusions

2020 ◽  
Vol 92 (2) ◽  
pp. 111-130
Author(s):  
Hannu V. Makkonen ◽  
◽  
Pekka Tuisku ◽  
Keyword(s):  
Nickel Sulfide ◽  
Nickel Content ◽  
Crustal Contamination ◽  
Granulite Facies ◽  
Metamorphic Grade ◽  
Contact Aureole ◽  
Critical Factors ◽  
Copper Ore ◽  
Nickel Copper ◽  
Crystallization Conditions

Several Ni-Cu deposits occur within the Kotalahti area, central Finland, in proximity to an Archaean gneiss dome surrounded by a Palaeoproterozoic craton-margin supracrustal sequence comprising quartzites, limestones, calc-silicate rocks, black schists and banded diopside amphibolites. The geology of the area and age of the Ni-bearing intrusions (1.88 Ga) are similar to the Thompson Ni belt in the Canadian Trans-Hudson Orogen. The small mafic-ultramafic and Ni-Cu -bearing Särkiniemi intrusion, closely associated with the Archaean basement core of the Kotalahti Dome, is composed of a western peridotite and eastern gabbro body, both of which are mineralized. The eastern gabbro has a contact aureole several meters thick, consisting of orthopyroxene +/- cordierite bearing hornfels between the intrusion and the migmatites. Geochemically, the Särkiniemi intrusion shares many features in common with other Svecofennian mafic-ultramafic intrusions, including crustal contamination and nickel depletion. The related Ni-Cu deposit has a low Ni/Co value (15) and low nickel content in the sulphide fraction (2.8 wt.%), together with a low estimated magma/sulphide ratio of around 170. Svecofennian 1.88 Ga mafic-ultramafic intrusions occur in terrains of variable metamorphic grade (from low-amphibolite to granulite facies) and are likely to represent emplacement at different crustal depths. Multi-equilibrium thermobarometry indicates that the contact aureole at Särkiniemi reached equilibrium at pressures of 4.5–6 kbar (15–20 km depth) and temperatures of 600–670 °C. Combined with the results of earlier research on the Svecofennian intrusions, this study indicates that a depth of 15–20 km crustal level was favourable, along with other critical factors, for nickel sulfide deposition at 1.88 Ga.

Microstructural and Microchemical Characterization of Nickel Sulfide Inclusions in Plate Glass

1991 ◽  
Vol 49 ◽  
pp. 962-963
Author(s):  
J. Cooper ◽  
O. Popoola ◽  
W. M. Kriven
Keyword(s):  
Thermal Expansion ◽  
Phase Transformation ◽  
Glass Matrix ◽  
Nickel Sulfide ◽  
Plate Glass ◽  
Thermal Expansion Mismatch ◽  
Volume Increase ◽  
Β Phase ◽  
Microchemical Characterization

Nickel sulfide inclusions have been implicated in the spontaneous fracture of large windows of tempered plate glass. Two alternative explanations for the fracture-initiating behaviour of these inclusions have been proposed: (1) the volume increase which accompanies the α to β phase transformation in stoichiometric NiS, and (2) the thermal expansion mismatch between the nickel sulfide phases and the glass matrix. The microstructure and microchemistry of the small inclusions (80 to 250 μm spheres), needed to determine the cause of fracture, have not been well characterized hitherto. The aim of this communication is to report a detailed TEM and EDS study of the inclusions.

Optimizing electron density of nickel sulfide electrocatalysts through sulfur vacancy engineering for alkaline hydrogen evolution

2020 ◽  
Vol 8 (35) ◽  
pp. 18207-18214
Author(s):  
Dongbo Jia ◽  
Lili Han ◽  
Ying Li ◽  
Wenjun He ◽  
Caichi Liu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Electron Density ◽  
Rational Design ◽  
Nickel Sulfide ◽  
Catalytic Performance ◽  
Sulfide Catalysts ◽  
Sulfur Vacancy

A novel, rational design for porous S-vacancy nickel sulfide catalysts with remarkable catalytic performance for alkaline HER.

THE ELECTRICAL RESISTIVITY AND THERMOPOWER OF NICKEL-COPPER ALLOYS

1974 ◽  
Vol 35 (C4) ◽  
pp. C4-223-C4-226 ◽  
Author(s):  
H. M. AHMAD ◽  
D. GREIG
Keyword(s):  
Electrical Resistivity ◽  
Copper Alloys ◽  
Nickel Copper

MAGNETIC PROPERTIES OF NICKEL-COPPER AND NICKEL-COBALT ALLOYS

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-1937-C8-1938 ◽  
Author(s):  
D. C. Jiles ◽  
T. T. Chang ◽  
D. R. Hougen ◽  
R. Ranjan
Keyword(s):  
Magnetic Properties ◽  
Cobalt Alloys ◽  
Nickel Cobalt ◽  
Nickel Copper

Carbon Nanotube as Thermal Interface Material Enhanced with Liquid Metal Alloy

2014 ◽  
Author(s):  
Yulong Ji ◽  
Gen Li ◽  
Chao Chang ◽  
Yuqing Sun ◽  
Hongbin Ma
Keyword(s):  
Carbon Nanotube ◽  
Liquid Metal ◽  
Metal Alloy ◽  
Thermal Interface Material ◽  
Thermal Interface ◽  
Liquid Metal Alloy
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