Solubility of ZrO<sub>2</sub> in Cryolite-Based Molten Salt System-Reference-Cited by-同舟云学术

Solubility of ZrO₂ in Cryolite-Based Molten Salt System

Published:2014-06 Issue: Volume:968 Page:67-71
ISSN:1662-8985
Container-title:Advanced Materials Research
language:
Short-container-title:AMR

Author:

Bao Morigen Gaowa¹,Wang Zhao Wen¹,Gao Bing Liang¹,Shi Zhong Ning¹,Hu Xian Wei¹,Yu Jiang Yu¹

Affiliation:

1. Northeastern University

Abstract

Electrolysis of cryolite-based molten salt is an important method for Al-Zr alloy production. The dissolution of ZrO2 in the melts effects current efficiency and energy consumption of the production process of Al-Zr alloy, so it is most importance to study the solubility of ZrO2 in the melts. In this paper, the solubility of ZrO2 in the cryolite-based molten salt of different composition at different temperatures was measured by isothermal saturation method. It was found that ZrO2 content increased rapidly in the initial stage, but the increase rate was very slow after two hours, so it was thought that ZrO2 was nearly saturation after two hour-after dissolution. The solubility of ZrO2 in cryolite-based molten salt increased markedly when increased the temperature and addition of CaF2. The solubility of ZrO2 in 2.2NaF·AlF3-Al2O3-CaF2 molten salt is similar with solubility of ZrO2 in the 2.2NaF·AlF3-CaF2, it is reach 5.5wt%.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Link

https://www.scientific.net/AMR.968.67.pdf

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