The Effect of Calcium Fluoride on Alumina Solubility in Low Temperature Cryolite Melts

Tingaev, P.; Zaikov, Yu. P.; Аписаров, А. П.; Dedyukhin, Alexander; Redkin, Alexander

doi:10.1007/978-3-319-65136-1_117

Cited by 2 publications

(2 citation statements)

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“…Determination of oxides solubility.-To determine the solubility and dissolution rate of Al 2 O 3 methods of potentiometric titration 53 and thermal analysis 54 with visual control 55 of additives dissolution and subsequent spectral analysis of the melt sample composition.…”

Section: Reduction Of Salts By Aluminummentioning

confidence: 99%

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Review—Synthesis of Aluminum Master Alloys in Oxide-Fluoride Melts: A Review

Suzdaltsev

Pershin

Филатов

et al. 2020

J. Electrochem. Soc.

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A review of the existing methods for producing aluminum master alloys with silicon, zirconium, scandium and boron are given. Basic parameters, advantages and disadvantages of the existing methods are analyzed, indicating the need to develop new more energy-efficient technologies. The prospects of obtaining aluminum master alloys in the electrolysis of melts based on the KF-NaF-AlF 3 -Al 2 O 3 -MeO (MeO = SiO 2, ZrO 2 , Sc 2 O 3 , and B 2 O 3 ) system are considered. For this purpose, the results of physical and chemical measurements in these melts are presented, including data on the solubility of Al 2 O 3 , SiO 2, ZrO 2 , Sc 2 O 3 , and B 2 O 3 oxides in KF-NaF-AlF 3 melts, data on the effect of oxide additives on the liquidus temperature of studied melts, as well as data on the kinetics of electrowinning of aluminum and alloying element from KF-AlF 3 -Al 2 O 3 -MeO melts. Based on the measurements, the parameters were selected and electrolysis tests were carried out for obtaining aluminum master alloys with silicon, zirconium, scandium, and boron from its oxides. The composition and structure of the obtained master alloys were studied.

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Section: Reduction Of Salts By Aluminummentioning

confidence: 99%

“…The cathode with steel current-lead was also stirred with the rate of 0-100 rpm. Master alloys were obtained in galvanostatic mode at parameters determined from polarization 54 dependences. At the end of the synthesis the master alloy was crystallized into a steel mold.…”

Section: Reduction Of Salts By Aluminummentioning

confidence: 99%