| 11. | The remaining 40 % of ore went to the ball mill and froth flotation plant.
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| 12. | The process, called froth flotation, is now used in every major metal mine in the world.
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| 13. | Consequently, the development of the froth flotation process was a major step forward in mineral processing.
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| 14. | The gravity-fed concentrator was highly innovative, as, for example, in the use of bulk froth flotation.
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| 15. | For example, in copper extraction pine oil is used to condition copper sulfide ores for froth flotation.
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| 16. | Froth flotation was added in the 1920s.
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| 17. | In the 1910s and 1920s, copper mills adopted the froth flotation method, which had been developed in Australia.
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| 18. | Its processing plant uses froth flotation to produce a product rich in potassium chloride ( " KCl " ).
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| 19. | In froth flotation, the cultivator aerates the water into a froth, and then skims the algae from the top.
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| 20. | Froth flotation is typically used to separate coal particles from ash or particles of valuable minerals from gangue material.
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