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Question
Identify the following method of concentration of ores and explain briefly.
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Solution
- This method represents Wilfley’s table of concentration of ores.
- Explanation:
- Wilfley’s table is made by fixing narrow, thin and long wooden riffles on an inclined surface.
- The table is given a regular vibrating motion.
- The powdered ore obtained from lumps of the ore using ball mill is fed on the top of Wilfley’s table and running stream of water is also released from the upper side.
- As a result, the lighter gangue particles are carried away by water and heavy ore particles in which proportion of minerals is more, settle between the wooden riffles fixed on the table and get collected on the slits between them.
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