Published August 2016
| Version v1
Journal article
Kinetics for extraction of zirconium and hafnium in DIBK-P350 system
- 1. General Research Institute for Nonferrous Metals, Beijing (China). Division of Mineral Resources, Metallurgy and Materials
- 2. Wuhan Institute of Technology, Wuhan (China). Key Laboratory for Green Chemical Process of Ministry of Education
Description
The extraction kinetics of zirconium and hafnium from the mixtures of diisobutyl ketone (DIBK) and di-(1-methyl-heptyl) methyl phosphonate (P350) were studied by using a Lewis cell. The results show that the extraction of zirconium and hafnium fit with pseudo-first order reaction, and the extraction kinetic of zirconium is governed by chemical reactions at bulk phase with activation energy (Ea,Zr) of -10.412 kJ/mol, while for hafnium, it is proved to be controlled by mixed-control, whose activation energy (Ea,Hf) is calculated to be -34.362 kJ/mol. (author)
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 309
- Journal Issue
- 2
- Journal Page Range
- p. 701-707
- ISSN
- 0236-5731
- CODEN
- JRNCDM
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 47099613
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ACTIVATION ENERGY; EXTRACTION; HAFNIUM; KINETICS; ZIRCONIUM
- Descriptors DEC
- ELEMENTS; ENERGY; METALS; REFRACTORY METALS; SEPARATION PROCESSES; TRANSITION ELEMENTS
Optional Information
- Notes
- 30 refs.