High-capacity pressurized continuous chromatograph
Multicomponent liquid chromatographic separations have been achieved by using a slowly rotating annular bed of sorbent material. The feed material is continuously introduced at a stationary point at the top of the bed, and eluent is allowed to flow everywhere else around the annulus. The rotation of the sorbent bed causes the separated components to appear as helical bands, each of which has a characteristic, stationary exit point; hence the separation process is truly continuous. The concept has been developed primarily on a 279-mm-diam by 0.6m-long device with a 12.7-mm-wide annulus. The effects of annulus width and diameter have been studied using the same device with annulus widths up to 114.3 mm. With this largest width, approximately 96% of the area available within the outer cylinder is devoted to the rotating sorbent bed. Further annulus-width studies have been pursued on units with 89- and 445-mm diameters. These geometric extensions to the basic concept allow extremely large capacity increases with minimal loss in separation and no increase in chromatograph diameter. The effects associated with increased feed concentration have also been studied. In this effort as well as in the annulus-width program, the separation of copper, nickel, and cobalt components from a carbonate solution was studied in detail. The nickel and cobalt components are found in the leach liquor of the Caron process for recovering nickel and cobalt from laterite ores. Nominally 50-..mu..m-diam Dowex 50W-X8 cation exchange resin was used as the bed material. The nickel concentration of the feed was varied tenfold, from 136.1 to approximately 1400 meq/L. The combined effects of the bed loading and annulus width were studied and compared with nonlinear theory. 9 figures, 1 table.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6094700
- Report Number(s):
- CONF-830633-3; ON: DE83014004
- Resource Relation:
- Conference: 3. symposium on separation science and technology for energy applications, Gatlinburg, TN, USA, 27 Jun 1983
- Country of Publication:
- United States
- Language:
- English
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High-capacity pressurized continuous chromatograph
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COBALT
LIQUID COLUMN CHROMATOGRAPHY
COPPER
EQUIPMENT
NICKEL
DESIGN
EXPERIMENTAL DATA
PERFORMANCE
QUANTITATIVE CHEMICAL ANALYSIS
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
ELEMENTS
INFORMATION
METALS
NUMERICAL DATA
SEPARATION PROCESSES
TRANSITION ELEMENTS
400105* - Separation Procedures