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    64.
    发明专利
    未知

    公开(公告)号：FR2329336B1

    公开(公告)日：1981-09-25

    申请号：FR7510030

    申请日：1975-03-28

    Applicant: AJINOMOTO KK

    IPC: B01J49/00 ,  B01J1/09

    Process and plant for regenerating a mixed-bed ion exchanger system
    67.
    发明专利
    Process and plant for regenerating a mixed-bed ion exchanger system 未知

    公开(公告)号：CH615601A5

    公开(公告)日：1980-02-15

    申请号：CH976776

    申请日：1976-07-30

    Applicant: CHRIST THEODOR AG

    Inventor： UEBERSAX HEINZ

    IPC: B01J49/00 ,  B01J49/09 ,  B01J1/09 ,  C02B1/40

    Abstract: The installation has a container (7) which contains a mixed-bed resin (6). There are further provided on the container (7): a raw-water connection (4), a distribution appliance (1) for alkali, a distribution appliance (3) for acid, an outflow appliance (2) for excess or spent regenerants, and an outflow appliance (5) for the clean water. Said clean water outflow appliance (5) is situated in the mixed-bed resin (6), specifically at least 30 mm above the acid distribution appliance (3). In operation, while the resins are being regenerated and while the resins are being flushed with raw water, the outflowing stream of acid and alkali, and of clean water, respectively, are hydraulically separated from one another, i.e. they are passed through separate appliances (2 or 5). As a result, the clean water does not mix with the regenerant. After regeneration, demineralised water is generated at once.

    METHOD FOR REGENERATING A WEAK BASE ANION EXCHANGER
    68.
    发明专利
    METHOD FOR REGENERATING A WEAK BASE ANION EXCHANGER 未知

    公开(公告)号：IL49954A

    公开(公告)日：1979-12-30

    申请号：IL4995476

    申请日：1976-07-01

    Applicant: HOOGOVENS IJMUIDEN BV

    IPC: B01J49/00 ,  B01J1/09

    Abstract: A method for regenerating a weak base anion exchanger which comprises passing a regenerating chemical in an upward direction through a granular resinous mass of an exchanger, thereupon displacing the chemical and rinsing the mass with water. The regenerating chemical is a lime slurry having a concentration of 1 to 5% by weight, which is both supplied to and withdrawn from the granular mass in an evenly distributed flow with a flow rate of at least 10 m3, per hour, per m3 resin material (m3/h/m3), while the granular mass is in a compacted state.

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