A relatively large volume horizontal liquid separation chamber is provided as an intermediate part of the downcomers used to transfer the denser liquid phase between contiguous trays of a countercurrent liquid-liquid extraction column. The downcomers also include two smaller vertical conduits which carry the liquid into and out of the opposing ends of the chamber. The downward flowing denser liquid phase is thereby subjected to a separation step within the downcomers to produce a stream of the l...

In a liquid-liquid centrifugal extractor wherein a liquid of greater specific gravity is introduced into an inner peripheral portion inside a rotor, while a liquid of smaller specific gravity is introduced into an outer peripheral portion, and the two liquids are brought into direct contact by exploiting the difference of the specific gravities thereof, to move an extract contained in one of the liquids into the other liquid, pipe means or groove-shaped members having a large number of small hol...

The present invention includes process and apparatus for continuously monitoring or detecting a liquid element or compound in another, different liquid including introducing a gas into a first liquid, measuring bubble size of bubble formation of the gas in the first liquid, introducing a second liquid element or compound into the first liquid to form a combination liquid, introducing a gas into the combination liquid, measuring bubble size of bubble formation of the gas in the combination liquid...

Apparatus is disclosed for separating a multiphase liquid mixture of lighter and heavier liquids which includes a caisson into which the liquid mixture is introduced. A surge plate extends horizontally across the interior of the caisson dividing it into upper and lower sections. The lower section forms a reservoir for receiving the liquid mixture. A wier plate extends vertically from the surge plate forming a reservoir and a spillover bucket chamber in the upper section for the lighter liquid. A...

A multistage liquid-liquid extraction apparatus of the mixer-settler type, which is especially suited for performing liquid-liquid extractions accompanied by the formation of a solid phase, comprises a vessel the side-wall of which defines a cylinder or a regular polygonal body, the vessel being divided by means of radial partitions into sectors, each sector comprising a mixer and a settler, and the mixers and the settlers being located near the side-wall of the vessel. The agitators of the mixe...

Cartridge type extraction trays for use in a small diameter liquid-liquid extraction column comprise a novel vertical wall which surrounds the active (perforated) area of the tray. This wall extends upward to a sufficient height to retain the heavy liquid on the active area of the tray preventing the heavy liquid from reaching the edge of the tray when it may possibly leak downward due to a gap between the edge of the tray and the inner surface of the column wall.

A high efficiency hydrocyclone for separating liquid constituents of a mixture wherein one constituent is a dispersed phase in another continuous phase constituent. The separation chamber of the hydrocyclone is configured such that a first steep tapered or curved portion progresses to a second less steeply tapered or curved portion with the beginning of such second less tapered portion being arranged close to the inlet end. A third substantially cylindrical portion extends from the second portio...

Applicators and a method of coloring a liquid. More specifically, the present invention relates to a liquid applicator having a flexible hollow body within which a liquid-filled, glass ampoule is received. The liquid applicator also has porous element containing colorant positioned such that when the ampoule is fractured, the liquid flows through the porous element containing colorant. Colorant is transferred to the liquid as it flows through the porous element. The resulting colored solution ma...

A liquid-liquid mixer wherein each impeller is associated with one recirculation chamber or two such chambers, having substantially the same diameter as the impeller. Each such recirculation chamber has the effect of increasing significantly the number of dispersion-recoalescence cycles for a given residence time and in consequence it is possible to employ an impeller of a selectively large diameter -- 50-90% of the diameter of the vessel portion in which it is located -- and to operate at relat...

The contact between, for example, ascending liquid droplets of lighter liquid, as the dispersed phase, and heavier liquid, as the continuous phase, flowing across perforated trays in a flooded liquid/liquid contacting column, is enhanced by providing upstanding baffles on lower trays, interspersed with depending baffles from the trays above. The baffles cause the heavy liquid to flow along an undulating path. Flow distributing partitions extend along the undulating flow path, between the baffles...