Multicomponent separations using a continuous annular chromatograph

Technical Report · Wed Dec 01 04:00:00 EST 1982

OSTI ID:6597403

Begovich, J M

Multicomponent liquid chromatographic separations have been achieved by using a slowly rotating annular bed of sorbent material. By continuously introducing the feed material to be separated at a stationary point at the top of the bed and eluent everywhere else around the annulus, elution chromatography occurs. The rotation rate 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 continuous separation of copper, nickel, and cobalt from an ammoniacal leach liquor has been used to evaluate the behavior and capabilities of a variety of continuous annular chromatographs (CACs). The experimental units ranged in diameter from 89 to 445 mm and in annulus width from 6 to 51 mm. The effects of feed rate, feed concentration, rotation rate, eluent and eluent velocity, and column size were experimentally determined and modeled to show how they affect the performance of a CAC system. Use of the described models should allow confident design of new CAC units for performing continuous separations on a preparative scale. With its capability for continuously separating many components using one or a number of eluents, the CAC should make chromatography a competitive process in many industrial applications. 21 tables, 105 figures.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6597403
• Report Number(s): ORNL-5915; ON: DE83004690
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
CHEMICAL ANALYSIS
CHROMATOGRAPHY
COBALT
COPPER
DATA
DESIGN
ELEMENTS
EQUIPMENT
EXPERIMENTAL DATA
INFORMATION
LIQUID COLUMN CHROMATOGRAPHY
METALS
NICKEL
NUMERICAL DATA
PERFORMANCE
PH VALUE
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
TRANSITION ELEMENTS