Extracting tower for liquid-liquid heterogeneous separation

Abstract

An extracting tower for liquid-liquid heterogeneous separation comprises an extracting tower bottom separating chamber, an extracting tower top separating chamber, a tower body, a heavy phase feeding distributor and a light phase feeding distributor, wherein the extracting tower bottom separating chamber is connected with the bottom end of the tower body, the extracting tower top separating chamber is connected with the top end of the tower body, the heavy phase feeding distributor is mounted at the top of the tower body, the light phase feeding distributor is mounted at the bottom of the tower body, an extracting tower disk is distributed in the tower body and comprises a connecting rib plate, an upper distribution disk and a liquid lowering structure, the connecting rib plate is mounted on a support on the inner side of the tower body, the upper distribution disk is mounted above the connecting rib plate through a tower ring, the upper distribution disk, the connecting rib plate and the tower body define a space, and the liquid lowering structure is mounted on the connecting rib plate and the upper distribution disk in a through manner. The extracting tower has the benefits as follows: dual-dispersion of a light phase and a heavy phase is realized, advantages of a pulsed packed tower and a sieve-plate tower are combined, the extracting separation tower plate efficiency is greatly improved, and the tower height is reduced, so that the equipment investment and the civil engineering cost are reduced.

Description

technical field [0001] The invention belongs to the technical field of chemical mass transfer and separation, and in particular relates to an extraction tower for liquid-liquid heterogeneous phase separation. Background technique [0002] Extraction is to extract one or several compound components in the mixture solution with another liquid (called a solvent, which is immiscible with the solvent of the mixture solution) to separate, enrich and purify . The extraction tower is a kind of extraction equipment that realizes continuous multiple extractions. Traditional extraction towers have the following different structures and types: such as pulse packed extraction towers, sieve plate extraction towers, rotating disk extraction towers, vibrating sieve plate towers, multi-stage centrifugal extraction towers, etc. [0003] In these forms of extraction towers, the dispersed phase and the continuous phase in the tower are invariable. If the dispersed phase adopts the light phase...

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Problems solved by technology

[0004] Patents such as CN103861323, CN103083936A, and CN103111089A all solve the problem of effective dispersion of the dispersed phase, and do not realize that the light phase and the heavy phase are both the dispersed phase and the continuous phase in the tower

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