A similar trend was found in the flotation of the pure coal with lignosulfonate using synthetic saline water.
As shown in Fig. 4, 25 g/t, 50 g/t and 100 g/t lignosulfonate decreased the combustible recovery slightly from 91% to 88%, 84% and 77%, respectively in saline water, but 200 g/t and 500 g/t lignosulfonate significantly decreased the combustible recovery to 42% and 12%, respectively.
A similar trend was found in the flotation of the pure coal with lignosulfonate using synthetic saline water. As shown in Fig. 4, 25 g/t, 50 g/t and 100 g/t lignosulfonate decreased the combustible recovery slightly from 91% to 88%, 84% and 77%, respectively in saline water, but 200 g/t and 500 g/t lignosulfonate significantly decreased the combustible recovery to 42% and 12%, respectively.
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