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ALKALI ROASTING OF CHROMIUM-OXIDE - EFFECT OF OPERATING VARIABLES

DSpace at IIT Bombay

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Field Value
 
Title ALKALI ROASTING OF CHROMIUM-OXIDE - EFFECT OF OPERATING VARIABLES
 
Creator TRIPATHY, AK
RAY, HS
PATTNAYAK, PK
 
Description Roastings of chromium oxide with sodium carbonate at low and high temperatures has been discussed. Experiments were carried out to study the effect of reaction temperature, Cr2O3/Na2CO3 ratio and oxygen partial pressure on alkali roasting kinetics. Finally, an empirical integrated rate equation describing the influence of these process variables has been obtained which can be used conveniently to estimate the time required for a particular degree of conversion in the range 0.2 - 0.6. The activation energy values for the alkali roasting are found to be 68 and 48 kJ.mol(-1) for reactions at low (600 - 900 K) and high temperatures (973 - 1273 K), respectively.
 
Publisher INDIAN INST METALS
 
Date 2011-08-02T12:26:14Z
2011-12-26T12:53:53Z
2011-12-27T05:41:00Z
2011-08-02T12:26:14Z
2011-12-26T12:53:53Z
2011-12-27T05:41:00Z
1994
 
Type Article
 
Identifier TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, 47(6), 365-371
0019-493X
http://dspace.library.iitb.ac.in/xmlui/handle/10054/8794
http://hdl.handle.net/10054/8794
 
Language en