Kellogg Brown + Root LLC

Koch-glitsch, Inc.

Neil Sandford

Michael R Resetarits

Gary Wayne Gage

Veada P Colic

Aldrich Holt Northup, Jr

Pamela Jo Tokerud

A two-stage liquid distribution device for use within an internal region of a mass transfer column to distribute liquid to an underlying mass transfer bed. The two-stage liquid distribution device includes a lower distributor with a lower parting box and lower troughs and an upper distributor with an upper parting box and upper troughs. The lower and upper parting boxes and troughs are enclosed to allow a liquid head in a lower downpipe section and an upper downpipe section that feed liquid to the lower distributor and the upper distributor to cause pressurization of liquid within the lower and upper parting boxes and troughs. The pressurization makes the lower and upper distributors less susceptible to rocking motion of the mass transfer column and reduces any maldistribution of liquid discharged from the lower and upper troughs to the mass transfer bed.

Two-stage liquid distribution device for mass transfer column

Method and apparatus for contacting two liquid phases for liquid-liquid extraction in a vertical extraction vessel. A relatively heavier liquid phase, descending the extraction vessel at a relatively low volumetric flow rate, is dispersed into a continuous phase comprising a relatively lighter liquid rising through the extraction vessel at a relatively high flow rate. Sieve trays are provided with adjustable active areas and overlapping manways for personnel access.

Liquid&#x2014;liquid extraction apparatus and method

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Wichita, KS, United States of America

Neil Sandford