Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Kuhni column

Fig. 15. Mechanically agitated columns (a) Scheibel column (b) rotating-disk contactor (RDC) (c) asymmetric rotating-disk (ARD) contactor (d) Oldshue-Rushton multiple-mixer column (e) Kuhni column and (f) reciprocating-plate column. Fig. 15. Mechanically agitated columns (a) Scheibel column (b) rotating-disk contactor (RDC) (c) asymmetric rotating-disk (ARD) contactor (d) Oldshue-Rushton multiple-mixer column (e) Kuhni column and (f) reciprocating-plate column.
Extractors with mechanical agitation, such as mixer-settlers, Kuhni columns, York-Schiebel columns, etc., should be avoided as much as possible. Up to seven theoretical stages packed extraction columns can be conveniently adopted. Sieve-plate extractors can be used up to 20 stages. When a very efficient extraction has to be carried out with expensive solutes, and for reasons of material stability and requirements of low expensive product inventory, we may have to use centrifugal extractors or hollow-fibre extractors. [Pg.418]

Kubierschky two-column sequence, 3 832 Kuehl experimental design text versus other texts, S 395t Kugelrohr apparatus, 26 843, 844 Kuhni column, 10 782... [Pg.506]

Kuhni column Graesser raining-bucket contactor... [Pg.597]

Kuhni Column Like the Scheibel column, the KUhni column uses shrouded (closed) turbine impellers as mixing elements on a central shaft (Fig. 15-49). Perforated partitions or stator plates extend... [Pg.1768]

Other variations of stirred columns which are available include the asymmetric rotating disc (ARD) contactor, the Kuhni column, and two types of Scheibel columns. The rotor of the ARD is located off center, which permits more elaborate baffling for the necessary transport of flows with less backmixing. [Pg.369]

Extraction apparatus with continuous phase contact Spray column Packed column Pulsed packed column Rotating disc contactor, Oldshue-Rushton column, Graesser-Contactor, Kuhni column Podbiehiiak- Extractor, Luigi-Westfalia- Extractor, De Laval-Extractor... [Pg.426]

Kuhni contacters (Eig. 15e) have gained considerable commercial application. The principal features are the use of a shrouded impeller to promote radial discharge within the compartments, and a variable hole arrangement to allow flexibility of design for different process applications. Columns up to 5 m in diameter have been constmcted (176). Description and design criteria for Kuhni extraction columns have been reported (177,178). [Pg.76]

Figure 11 Agitated extractors. Left to right RDC, Karr, Oldshue-Rushton, Scheibel, Kuhni extraction columns. [Pg.333]

See other pages where Kuhni column is mentioned: [Pg.78]    [Pg.433]    [Pg.493]    [Pg.331]    [Pg.1745]    [Pg.59]    [Pg.1739]    [Pg.425]    [Pg.447]    [Pg.460]    [Pg.78]    [Pg.433]    [Pg.493]    [Pg.331]    [Pg.1745]    [Pg.59]    [Pg.1739]    [Pg.425]    [Pg.447]    [Pg.460]    [Pg.748]    [Pg.482]    [Pg.72]    [Pg.482]    [Pg.510]    [Pg.482]    [Pg.482]    [Pg.1625]    [Pg.1707]    [Pg.1749]    [Pg.408]    [Pg.1621]    [Pg.1701]    [Pg.1743]    [Pg.624]    [Pg.512]   


SEARCH



© 2024 chempedia.info