Liquidus Temperatures of Cryolite Melts With Low Cryolite Ratio

被引：40

作者：

Apisarov, Alexei ^{[1
]}

Dedyukhin, Alexander ^{[1
]}

Nikolaeva, Elena ^{[1
]}

Tinghaev, Pavel ^{[1
]}

Tkacheva, Olga ^{[1
]}

Redkin, Alexander ^{[1
]}

Zaikov, Yurii ^{[1
]}

机构：

[1] Inst High Temp Electrochem, Ekaterinburg 620219, Russia

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2011年 / 42卷 / 01期

关键词：

ALUMINUM CELL ELECTROLYTE; PRIMARY CRYSTALLIZATION; PHYSICOCHEMICAL PROPERTIES; PHASE-DIAGRAM; SYSTEM; SOLUBILITY; FLUORIDE; CALCIUM; CURVES;

D O I：

10.1007/s11663-010-9462-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of calcium fluoride on liquidus temperatures of the cryolite melts with a low cryolite ratio (CR) was studied. The systems KF-NaF-AlF3 and KF-LiF-AlF3 with CRs of 1.3, 1.5, and 1.7 have been investigated. The liquidus curves of systems containing CaF2 are different and depend on the K/(K + Na) and K/(K + Li) ratios. In potassium cryolite with CRs of 1.3 and 1.5, the calcium fluoride solubility is low and increases with NaF (LiF) concentration.

引用

页码：236 / 242

页数：7

共 24 条

[11] FELLNER P, 1990, CHEM PAP, V44, P677
[12] LIQUIDUS CURVES FOR ALUMINUM CELL ELECTROLYTE .3. SYSTEMS CRYOLITE AND CRYOLITE-ALUMINA WITH ALUMINUM FLUORIDE AND CALCIUM FLUORIDE
FENERTY, A
HOLLINGSHEAD, EA
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1960, 107 (12) : 993 - 997
[13] EQUILIBRIUM STUDIES IN SYSTEMS K3ALF6-NA3ALF6 AND K3ALF6-RB3ALF6
GRJOTHEI.K
HOLM, JL
MIKHAIEL, SA
[J]. ACTA CHEMICA SCANDINAVICA, 1973, 27 (04): : 1299 - 1306
[14] Grjotheim K., 1982, ALUMINUM ELECTROLYSI, P443
[15] Mal'tsev V., 1967, RUSS J APPL CHEM, V40, P532
[16] MALINOVSKY M, 1967, CHEM ZVESTI, V21, P806
[17] Structure and thermodynamics of alkali fluoride-aluminum fluoride-alumina melts. Vapor pressure, solubility, and Raman spectroscopic studies
Robert, E
Olsen, JE
Danek, V
Tixhon, E
Ostvold, T
Gilbert, B
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (46): : 9447 - 9457
[18] ROLIN M, 1961, B SOC CHIM FR, P1351
[19] Liquidus temperatures for primary crystallization of cryolite in molten salt systems of interest for aluminum electrolysis
Solheim, A
Rolseth, S
Skybakmoen, E
Stoen, L
Sterten, A
Store, T
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 1996, 27 (05): : 739 - 744
[20] Thoma R.E., 1959, 2548 ORNL, P32

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