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Decantation continuous-countercurrent

Control philosophies applied to continuous countercurrent decantation (CCD) thick eners are similar to those used for thickeners in other applications, but have emphasis on maintaining the CCD circuit in balance. It is important to prevent any one of the thickeners from pumping out too fast, otherwise an upstream unit could be stai ved of wash liquor while at the same too much underflow could be placed in a downstream unit too quickly, disrupting the operation of both units as well as reducing the circuit washing efficiency. Several control configurations have Been attempted, and the more successful schemes... [Pg.1689]

By comparing this simple diagram with the conventional continuous countercurrent decantation circuit, shown in Fig. lb (Coulson and Richardson, 1968, 1978 Treybal, 1955, 1968, 1980) for carrying out the same duty, it is easy to deduce the following characteristics for fluidized leaching and washing ... [Pg.493]

By comparing this simple diagram with the conventional continuous countercurrent decantation circuit, it is easy to deduce the following characteristics for fluidized leaching and washing ... [Pg.239]

Control philosophies applied to continuous countercurrent decantation (CCD) thickeners are similar to those used for thickeners in... [Pg.2014]

To recover liquid and solids in order of preference of settlers. Section 5.8, CCD, Section 5.11 and sedimentation centrifuges. Section 5.12 continuous countercurrent decanter circuit CCD, horizontal solid bowl centrifuge with scroll discharge. [Pg.151]

Figure 13.13 Continuous countercurrent decantation (CCD) (a) simple flowsheet (Jb) flowsheet with intermediate agitation and filtration of washed solids. Figure 13.13 Continuous countercurrent decantation (CCD) (a) simple flowsheet (Jb) flowsheet with intermediate agitation and filtration of washed solids.
Illustration 7.8 Mineral Processing Continuous Countercurrent Decantation (CCD)... [Pg.328]

In contrast to the previously described modes of operation, solvent and feed move continuously towards each other in absolute countercurrent extraction. These extractors, e.g. the screw-conveyor extractor, the Bonotto extractor, the Kennedy extractor and extraction batteries with decanter, all move the solid material and are, therefore, mechanically stress objected. For the miscella this requires extended filtration for removing solids. [Pg.22]

See other pages where Decantation continuous-countercurrent is mentioned: [Pg.93]    [Pg.93]    [Pg.1621]    [Pg.1689]    [Pg.1689]    [Pg.399]    [Pg.277]    [Pg.444]    [Pg.458]    [Pg.443]    [Pg.399]    [Pg.1442]    [Pg.1510]    [Pg.1510]    [Pg.444]    [Pg.1938]    [Pg.2016]    [Pg.2016]    [Pg.81]    [Pg.81]    [Pg.1926]    [Pg.2004]    [Pg.2004]    [Pg.1625]    [Pg.1693]    [Pg.1693]    [Pg.329]    [Pg.406]    [Pg.279]    [Pg.1733]    [Pg.768]    [Pg.340]    [Pg.424]    [Pg.453]   
See also in sourсe #XX -- [ Pg.736 , Pg.737 ]



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