Electrical conductivity of low-melting electrolytes for aluminium smelting

Hı́veš, Ján; Thonstad, J.

doi:10.1016/j.electacta.2004.06.022

Cited by 38 publications

(29 citation statements)

References 6 publications

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“…The eutectic temperature of KF-AlF 3 system is around 833 K while that of NaF-AlF 3 system is around 971 K [6]. The studies on KF-AlF 3 -based electrolyte system were mainly focused on its physical or chemical properties and corrosion effects on inert anodes [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical intercalation of potassium into graphite in KF melt

Liu

Yang

et al. 2010

Electrochimica Acta

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Section: Introductionmentioning

confidence: 99%

Electrochemical intercalation of potassium into graphite in KF melt

Liu

Yang

et al. 2010

Electrochimica Acta

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“…An effective way to use nonferrous smelting slag is to prepare filling cementitious material from large amounts of solid waste produced in mining and metallurgy [15,16,17,18]. The low gelling activity and difficulty in stimulating the nonferrous smelting slag are the main factors restricting the large-scale utilization of nonferrous smelting slag in China [19,20,21].…”

Section: Introductionmentioning

confidence: 99%

Experimental Studies on Chemical Activation of Cementitious Materials from Smelting Slag of Copper and Nickel Mine

Wang

Wei

et al. 2019

Materials

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Gellable composite materials (GCM) were prepared from a smelting slag of copper and nickel deposits and cement, and activated using gypsum and chemical activators. The effects of material ratio, dosage of chemical activators, and gypsum on the mechanical properties of GCM were studied. Our results showed that the chemical activators of Na2SO4, Na2SiO3, NaOH, and Na2CO3 could improve the compressive strength of the GCM. Considering the market cost and ease operation, the compressive strength of the GCM could be significantly improved with 2% Na2SO4. The experiment results also showed that the compound chemical activator could improve the compressive strength of gelled material. The strength of GCM reaches 41.6 MPa when 2% gypsum and 80% of smelting slags of copper and nickel deposits were used, which met the national standards requirements of GCM. As such, it is expected that a large amount of copper and nickel mining smelting slag could be utilized for the production of cementitious materials.

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“…Calibration techniques also play an important role. The main experimental techniques employing pyrolytic BN are so called CVCC (Continuously Varying Cell Constant) moving electrode technique (Wang et al, 1993;Kan et al, 2007;Bakin et al, 2010) and tube-type cell with fixed position of electrodes (Híveš et al, 1996;Híveš and Thonstad, 2004;Uher et al, 2009). Electrical conductivity of low-temperature cryolite based melts has been investigated in recent years (Redkin and Tkacheva, 2010;Cassayre et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Electrical conductivity of molten fluoride-oxide melts with high addition of aluminium fluoride

Kubiňáková

Hı́veš

Danielik

2016

Acta Chimica Slovaca

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Electrical conductivity of NaF-AlF3 melts with an addition of 2 wt % Al2O3 and/or 5 wt % CaF2 was measured using a pyrolytic boron nitride tube-type cell with a constant distance of electrodes. The molar cryolite ratios MR = n(NaF)/n(AlF3) were 1.8 and 1.6, and the temperature was varied from 865 °C to 1005 °C. Ac-techniques with a sine wave signal with small amplitude in the high frequency range were applied. Electrolyte resistance was obtained from nonlinear regression analysis according to equivalent circuit. Experimental data were used to describe the dependence of the electrical conductivity in fluoride melts with lower temperature on the amount of various additions and temperature.

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Electrical conductivity of low-melting electrolytes for aluminium smelting

Cited by 38 publications

References 6 publications

Electrochemical intercalation of potassium into graphite in KF melt

Electrochemical intercalation of potassium into graphite in KF melt

Experimental Studies on Chemical Activation of Cementitious Materials from Smelting Slag of Copper and Nickel Mine

Electrical conductivity of molten fluoride-oxide melts with high addition of aluminium fluoride

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