| 摘要 |
Process employs a two-stage separator with two liquids of differing densities to separate the mixt. into three fractions. The heavy fraction is that which will not float in the high density liq.; the middling fraction is one which will not float in the low density liq. after treatment for removal of the heavy fraction, and the light fraction is the overflow. The liqs. used are suspensions of mixed ferrosilicon and magnetite and are recovered and recirculated continuously. - Used for the sepn. of mineral ores, coal, etc.
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