Chemistry: physical processes – Physical processes – Crystallization
Patent
1973-08-13
1976-11-02
HIgel, Floyd D.
Chemistry: physical processes
Physical processes
Crystallization
23267A, 23267B, 23267E, 23267F, 23270R, 232705R, 23272R, 232725, 232726R, 2327265, 210 21, 210 24, 210201, 210203, 260154, 260206, 260208, 2602391, 260256, 260295AM, 26039725, 260488F, 260621B, B01D 1100, B01D 1502, B01D 5922
Patent
active
039894665
ABSTRACT:
Apparatus is provided for use in carrying out liquid-liquid extraction techniques, which apparatus includes an extraction column containing a unique solvent sorbing packing material, namely a plurality or bundle of elongated fibrous strands having first and second end portions, the strands being capable of sorbing a desired solvent; the apparatus also includes a separation zone in communication with the second end of the plurality of fibrous strands, means for feeding a first or heavy solvent phase through the bundle of fibrous strands so as to be sorbed by said strands, and subsequently into the separation zone, means for feeding a second or light solvent phase into the separation zone and thence through the annular spaces of the column, around the fibrous strands contained therein, means for recovering the light solvent phase from the first end of said bundle and means for recovering said heavy solvent phase from said separation zone. Apparatus for separating two components by extraction techniques is also provided wherein the fibrous strand packing is utilized. A process is also provided for carrying out a continuous liquid-liquid countercurrent extraction employing two continuous phases. The process is carried out employing apparatus as described above.
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Hou et al., Chemical Abstracts, vol. 43, 2042d (1949).
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Higel Floyd D.
Rodney Burton
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