Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing
Patent
1980-03-31
1981-11-03
Cintins, Ivars C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ion-exchange polymer or process of preparing
209160, 210662, 210675, 210 961, 210189, B01J 4900
Patent
active
042986966
ABSTRACT:
A high degree of water purity is obtained from a mixed-bed deionization process by minimization of cross-contamination of the cation and anion materials. After service, the materials are classified into superimposed uppermost, intermediate and lowermost layers above a perforate barrier in a separator vessel. The vessel has an elongate conduit having an inlet adjacent the barrier and an outlet outside the vessel. At least a major proportion of the material of the lowermost layer is passed through the outlet of the conduit and an interface between materials is detected. Thereupon, the conduit outlet is isolated from the conduit inlet so as to segregate in the conduit material from the intermediate layer. The ion exchange materials are then regenerated and re-mixed. The segregated material is independently removed from the conduit before the next regeneration cycle starts. For example, the material may be kept in the conduit, or transferred to and kept in a separate container while the rest of the materials are being regenerated.
REFERENCES:
patent: 2666741 (1954-01-01), McMullen
patent: 3595385 (1971-07-01), Duff
patent: 3634229 (1972-01-01), Stanley
patent: 3768649 (1973-10-01), Fleckenstein
patent: 3826761 (1974-07-01), Short
patent: 4120786 (1978-10-01), Petersen et al.
Cintins Ivars C.
Northern Engineering Industries Ltd.
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