Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2005-05-03
2005-05-03
Cintins, Ivars C. (Department: 1724)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S676000, C210S688000, C210S690000, C210S692000
Reexamination Certificate
active
06887386
ABSTRACT:
A continuous Liquid-Solids Circulating Fluidized Bed (LSCFB) preferably for use as an ion exchanger consists of two fluidized bed columns, a fluidized bed adsorber (downer) operating in conventional fluidized bed mode for adsorption of ions of interest and a fluidized bed riser for desorption of ions (operating as a riser fluidized bed) to provide regenerated particles. Ion exchange particles circulate continuously between the riser and the downer i.e. the particles that have adsorbed ions in the absorber pass from the adsorber (downer) to the desorber where they are regenerated and the so regenerated particles are return to the adsorber near the top of the adsorber column. The LSCFB can be used in processes for continuous recovery of the ions of interest.
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Bassi Amarjeet Singh
Lan Qingdao
Margaritis Argyrios
Zheng Ying
Zhu Jingxu
Cintins Ivars C.
Hill & Schumacher
Schumacher Lynn C.
The University of Western Ontario
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