Briquetting of Iran-Angouran smithsonite fines
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Middle East Technical University
Publication date: 2003-01-01
Corresponding author
Gulhan Ozbayoglu   

Middle East Technical University, Dept. of Mining Engineering, 06531Ankara-Turkey
Physicochem. Probl. Miner. Process. 2003;37(1):115-122
In conventional zinc carbonate ore processing, crushed ore is charged to Waelz furnace for the recovery of zinc through volatilization. When the feed size is fine which does not meet the requirements, briquetting is employed to convert the fines and dusts into chargable lumps. The aim of this research was to determine the possibility of briquetting of Iran-Angouran zinc carbonate fines produced in Dandi concentration plant. During the briquetting test, the effects of pressure, type and amount of binder, moisture, temperature, and fineness of the feed were determined. The quality of briquette was controlled in terms of the compressive strength, abrasion index and resistance to weathering. The optimum briquetting result was obtained when the zinc carbonate fines was mixed with 6% water, 5% molasses and 1.5% lime at a briquetting pressure of 200 kg/cm2 and drying at 105°C for 2 hours.
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