Published December 2003
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The study on preparation of high dispersion and pure cerium dioxide for producing automotive exhaust catalysts
- 1. Institute for Technology of Radioactive and Rare Elements, Hanoi (Viet Nam)
Description
The multi-stage counter-current solvent extraction process using TBP as the solvent has been carried out for purifying cerium and the ammonium carbonate precipitation method has been used to produce the cerium oxide of high dispersion and pure. The flow sheet of extraction system includes 3 extraction stages with O/A = 0.7,2 stripping stages and 4 scrubbing stages with O/A = 5. The condition for ammonium carbonate precipitation, drying and calcination have been investigated and a procedure that seem to be practically suitable to prepare cerium dioxide powder with great specific surface area for producing automotive exhaust catalyst has been proposed. (LMT)
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35095865.pdf
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Additional details
Publishing Information
- Imprint Title
- The VAEC - Annual report for 2001 - 2002
- Imprint Pagination
- 417 p.
- Journal Page Range
- p. 303-307
- Report number
- VAEC-AR--01/02
INIS
- Country of Publication
- Viet Nam
- Country of Input or Organization
- Viet Nam
- INIS RN
- 35095865
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Progress Report
- Descriptors DEI
- CERIUM OXIDES; COUNTER CURRENT; FLOWSHEETS; IMPURITIES; PRECIPITATION; PROGRESS REPORT; PURIFICATION; SCRUBBING; SOLVENT EXTRACTION; SURFACTANTS; TBP; TRACE AMOUNTS
- Descriptors DEC
- BUTYL PHOSPHATES; CERIUM COMPOUNDS; CHALCOGENIDES; DIAGRAMS; DOCUMENT TYPES; ESTERS; EXTRACTION; INFORMATION; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHOSPHORIC ACID ESTERS; RARE EARTH COMPOUNDS; SEPARATION PROCESSES
Optional Information
- Notes
- (VAEC-AR--01/02-54); 5 tabs., 1 fig.