Published August 2018 | Version v1
Journal article Metadata-only

Determination of the Cryolite Ratio of KF-NaF-AlF3 Electrolyte by Conductivity Method

Creators

  • 1. Kunming University of Science and Technology, State Key Laboratory of Complex Nonferrous Metal Resources Cleaning Utilization in Yunnan Province/The National Engineering Laboratory for Vacuum Metallurgy (China)
  • 2. Jiangsu University, School of Material Science and Engineering (China)
  • 3. Zhengzhou Research Institute of CHALCO (China)

Description

The cryolite ratio (CR) is an important parameter for the electrolyte in aluminum reduction cells. The measurement method for the CR of the KF-NaF-AlF3 system acid (CR < 3) electrolyte by means of electrical conductivity was initially developed, and the formula for calculating the CR was deduced. This method has the advantages of simple operation and high precision. In addition, the relative standard deviations (RSD) of the measurement are < 1.2 pct, and the analysis error of the NaF or KF content has little effect on the determination of the CR.

Additional details

Identifiers

DOI
10.1007/s11663-018-1275-y;

Publishing Information

Journal Title
Metallurgical and Materials Transactions B, Process Metallurgy and Materials Processing Science
Journal Volume
49
Journal Issue
4
Journal Page Range
p. 2071-2076
ISSN
1073-5615
CODEN
MTBSEO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
51019606
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ACCURACY; ALUMINIUM; ALUMINIUM FLUORIDES; ELECTRIC CONDUCTIVITY; ELECTROLYTES; ERRORS; POTASSIUM FLUORIDES; REDUCTION; SODIUM FLUORIDES
Descriptors DEC
ALKALI METAL COMPOUNDS; ALUMINIUM COMPOUNDS; ALUMINIUM HALIDES; CHEMICAL REACTIONS; ELECTRICAL PROPERTIES; ELEMENTS; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; METALS; PHYSICAL PROPERTIES; POTASSIUM COMPOUNDS; POTASSIUM HALIDES; SODIUM COMPOUNDS; SODIUM HALIDES

Optional Information

Copyright
Copyright (c) 2018 The Minerals, Metals & Materials Society and ASM International
Notes
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