Liquid-liquid extraction apparatus

Details Liquid-liquid extraction apparatus Liquid-liquid extraction apparatus

1975-11-03

1977-08-02

Wolk, Morris O.

Mineral oils: apparatus

Solvent extraction

196 46, 261114R, 23283, B01D 1104, C10G 1908

Patent

active

040393895

ABSTRACT:
High efficiency in extraction operations, such as extracting mercaptans from hydrocarbons with caustic, is obtained over a wide range of flow rates through a single extraction column by the provision of an intermediate product drawoff means located between a downstream section of extraction trays having greatest efficiency at low throughputs and an upstream section of trays having peak efficiency at high throughputs. A second product stream is removed after passing through the low flow rate trays and is blended with the stream from the intermediate drawoff means.

REFERENCES:
patent: 1728440 (1929-09-01), Otto
patent: 2317770 (1943-04-01), Holloway et al.
patent: 3143482 (1964-08-01), McLeod et al.
patent: 3189634 (1965-06-01), Wheeler et al.
patent: 3489506 (1970-01-01), Galstaun et al.
patent: 3551097 (1970-12-01), Brook et al.
patent: 3702295 (1972-11-01), Thompson
patent: 3707580 (1972-12-01), Anderson
patent: 3811844 (1974-05-01), Dunmyer, Jr. et al.

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