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Carbochlorination of dispersed oxides in a molten salt reactor.

Authors
Dobbins-MS; Burnet-G
Source
AIChE J 1988 Jul; 34(7):1086-1093
NIOSHTIC No.
10007730
Abstract
Reaction mechanism and rates were determined from 803 to 1,073 K for the carbochlorination of Al2O3 and of Al, Si, and Fe-mixed oxides using Cl2 and C slurried in a stirred melt of NaCl--AlCl3. Alumina chlorination rates of 0.33-2.0 X 10-8 kmol/s were obtained using C:melt weight ratios between 1:21 and 1:42. The reaction rate was proportional to C loading at temperatures below 923 K, while gas-liquid mass transfer was rate controlling at higher temperatures. Carbochlorination of the combined oxides in coal fly ash at 923 K and oxide conversions less than about 50 pct was also gas-liquid mass-transfer-controlled. At higher conversions, dissolution became the rate-controlling factor. A 40 pct (molar) AlCl3 melt was more effective than a 48 pct AlCl3 melt for the selective chlorination of Al2O3 over SiO2. Research was done at Iowa State University under Grants G1144119 and G1154119.
CODEN
AICEAC
Publication Date
19880701
Document Type
OP; Journal Article
Fiscal Year
1988
NTIS Accession No.
NTIS Price
Identifying No.
MIR-9-90; Grant-G1144119; Grant-G1154119
Issue of Publication
7
ISSN
0001-1541
NIOSH Division
WO
Source Name
AIChE Journal
State
IA
Performing Organization
Iowa State University
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