Modified alumina-cryolite bath with high electrical conductivity and dissolution rate of alumina / Frolov Anton V.,Gusev Alexander O.,Zaikov Yurii P.,Khramov Andrei P.,Shurov Nikolai I.,Tkacheva Olga Yu.,Apisarov Alexey P.,Kovrov Vadim A. // . - 2007. - V. , l. . - P. 571+.

ISSN/EISSN:

0147-0809 / нет данных

Type:

Proceedings Paper

Abstract:

To improve the commercial electrolysis of aluminum at high current density a modified bath with better electrical conductivity and better dissolution rate of alumina has been developed. The bath modified has been developed on the basis of sodium cryolite Na3AlF6 with additions AlF3, KF, LiF, CaF2, MgF2. Physical-chemical properties: electrical conductivity, solubility and dissolution rate of alumina, liquidus temperature have been measured experimentally. Electrical conductivity of the modified bath has been found to be 15-20\% higher than electrical conductivity of conventional commercial alumina-cryolite bath. And dissolution rate of alumina of the modified bath has been found to be 3X higher than dissolution rate of conventional commercial alumina-cryolite baths. Effect of KF concentration, alumina content and temperature on these properties have been studied experimentally. The modified bath developed has been tested on an industrial cell with prebaked anodes; during the test the cell voltage was decreased by 0.2 V with anode-cathode distance unchanged.

Author keywords:

modified bath; electrical conductivity; dissolution rate of alumina MOLTEN-SALT SYSTEMS; ELECTROLYSIS

DOI:

нет данных

Web of Science ID:

ISI:000247423900096

Соавторы в МНС:

—

Другие поля

Поле	Значение
Editor	Sorlie, M
Booktitle	LIGHT METALS 2007
Series	Light Metals
Note	Symposium on Light Metals held at the 2007 TMS Annual Meeting and Exhibition, Orlando, FL, FEB 25-MAR 01, 2007
Organization	Minerals Met \& Mat Soc
Publisher	MINERALS, METALS \& MATERIALS SOC
Address	184 THORN HILL RD, WARRENDALE, PA 15086-7514 USA
Language	English
ISBN	978-0-87339-659-2
Keywords-Plus	MOLTEN-SALT SYSTEMS; ELECTROLYSIS
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Number-of-Cited-References	7
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	1
Doc-Delivery-Number	BGJ39