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The development of a mini‐plant chlorinator for ferric chloride leach processes
Author(s) -
Tan K. G.,
Bedard P. L.
Publication year - 1988
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450660415
Subject(s) - raschig ring , packed bed , exothermic reaction , ferric , chloride , ferrous , mass transfer , chemistry , analytical chemistry (journal) , chemical engineering , inorganic chemistry , chromatography , organic chemistry , engineering
A packed column reactor was designed and tested for the chlorination of ferrous chloride leach solutions in a co‐current contacting mode. The reaction is exothermic and gas film controlled, and the size of the reactor can be estimated using literature data. The target throughput of 1 L/min solution containing about 1 rnol FeCl 2 /L, 3 rnol NaCI/L, and 0.5 rnol HCI/L (plus some PbCl 2 , ZnCl 2 , and CaSO 4 ) was adequately treated in a 5 cm diameter column packed to a height of 50 cm with 1 cm Raschig rings. Further process development work and kinetic measurements were conducted in smaller (2 cm) diameter columns. These investigations yielded reliable mass transfer data which are useful both for scale up purposes and for a fundamental understanding of the reactions involved.