Report summaryThe Debari smelter was commissioned in 1968 and had a capacity of 18kt/a zinc to treat concentrates from the Zawar group of mines. Installing a new Lurgi roaster and acid plant in 1976 in order to be able to treat concentrate from Rajpura-Dariba increased capacity, and expansion of the tankhouse in the late 1970s, brought it to 45kt/a. A phosphoric acid plant was also built at this time. A new effluent treatment plant was commissioned in 1981. Initially primary leach residues were...
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