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2. An Introduction to chemical Engineering: Kinetics and Reactor Design;Charles,1977
3. Ferric sulphate percolation leaching of a pyritic Zn-Pb-Cu ore;Dutrizac;CIM Bull.,1979
4. Percolation leaching of pentlandite ore: Ferric ion as a leaching medium;Dutrizac;Miner. Sci. Eng.,1974
5. Text Book of Physical Chemistry;Glasstone,1969