| 摘要 |
1. Pulsed column of the type comprising, in known manner, an upper decanter having an inlet for heavy phase and an outlet for light phase, and a lower decanter having an inlet for light phase and an outlet for heavy phase, said lower decanter being connected to a pulsation system, the heavy and light phases circulating in counter-current to one another, characterized in that it additionally comprises, at its middle, an intermediate decanter (3) having an inlet (5) for heavy phase, said intermediate decanter (3) dividing the column into an upper portion (2) and a lower portion (1) whose diameters and lengths may be different, the interface being controlled within said intermediate decanter (3), thereby permitting working with a continuous heavy phase in the lower portion (1) and a continuous light phase in the upper portion (2).
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