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公开(公告)号：FR2372776A1
公开(公告)日：1978-06-30
申请号：FR7636506
申请日：1976-12-03
Applicant: CEM COMP ELECTRO MEC
Inventor： JACQUES , GUERRE HENRI
Abstract: When resin in a treatment vessel becomes exhausted to the point of requiring regeneration, the resin is discharged into containers which are transported to a regeneration station. At the same time, the treatment vessel is reloaded with fresh resin returned in containers after processing at the regeneration station. Pref. each container has a resin capacity equal to that of a treatment vessel. Containers should be standardised for easy handling and stacking. The treatment vessel, the transport containers and the regeneration vessel are pref. fitted with low level, compressed air inlets to fluidise resin to be transferred out by suction pump. Used for regeneration of ion exchange resins employed in the treatment of industrial waste water, partic. effluent from electroplating and other metal surface finishing processes. The treatment vessel does not have to come off stream for the duration of a regeneration cycle. Instead, the only time lost is the brief period required to exchange spent resin for resin returned from a regeneration station. The regeneration station benefits from large-scale operation in handling resin from a group of treatment stations.
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公开(公告)号：SE401616B
公开(公告)日：1978-05-22
申请号：SE7504154
申请日：1975-04-10
Applicant: SHERRITT GORDON MINES LTD
Inventor： WEIR D R , SEFTON V B
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公开(公告)号：GB1510750A
公开(公告)日：1978-05-17
申请号：GB4696176
申请日：1976-11-11
Applicant: BOSCH SIEMENS GMBH
Abstract: 1510750 Ion-exchange BOSCH-SIEMENS HAUSGERATE GmbH 11 Nov 1976 [18 Dec 1975] 46961/76 Heading BIJ A water-softening device forming part of a washing or rinsing appliance such as a dishwasher comprises an ion-exchange container 12 a salt container 13 and a water trap container 14 upstream of the salt container. The water trap container comprises a first compartment 26 connected to the brine container and a second, overflow, compartment connected to the rinse container 11. The first compartment is of variable effective volume, e.g. by means of an adjustable weir 29 as shown, by movement of end wall 31, by insertion of a displacement body, or by making the water trap container pivotable. These means allow adjustment of the amount of regenerant solution to suit the prevailing water hardness.
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公开(公告)号：GB1501308A
公开(公告)日：1978-02-15
申请号：GB2850676
申请日：1976-07-08
Applicant: HOOGOVENS IJMUIDEN BV
Abstract: 1501308 Ion-exchange HOOGOVENS IJMUIDEN BV 8 July 1976 [9 July 1975] 28506/76 Heading B1J The regeneration of a weak base anion exchanger in the form of a particulate mass is effected by passing a slurry of lime in water having a calcium hydroxide concentration in the range of 1 to 5% by weight upwardly through the mass while the mass is in a compacted state, with a flow rate of at least 10m 3 per hour per m 3 of the mass. The flow rate is such as to compact the resin bed at the top end of the vessel. Thereafter, the regenerating agent is displaced and the mass rinsed with water. Rinsing may be effected with the mass still in a compacted state, but preferably is effected while the mass is completely expanded and preferably while introducing air. The method allows the use of as little free space above the bed as 30% of the space occupied by the mass. It is particularly applicable to macroporous exchangers. The spent resin may have been used for desalination of brackish water which has already passed through a strong acid cation exchanger. Reference has been directed by the comptroller to Specification 1471162.
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Patent Agency Ranking
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公开(公告)号：GB1464007A
公开(公告)日：1977-02-09
申请号：GB1780574
申请日：1974-04-23
Applicant: DYNAMIT NOBEL AG
Abstract: 1464007 Regeneration of ion exchange resins DYNAMIT NOBEL AG 23 April 1974 17805/ 74 Heading B1J Cation and anion exchange resins used for extracting one or more salts from aqueous solution are regenerated employing a spent regenerating agent from one resin to pretreat another resin prior to its regeneration, the pretreatment being effected by substantially complete displacement of adsorbed ions by ions of like charge sign of the spent regenerating agent to produce a first solution containing substantially the total amount of ions originally extracted from the aqueous solution by both resins and excess regenerating agent, and using a different regenerating agent to regenerate the pretreated resin to produce a second solution separate from the first containing substantially only a salt obtained from the regenerating agents and excess regenerating agent.
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公开(公告)号：GB1433026A
公开(公告)日：1976-04-22
申请号：GB2780873
申请日：1973-06-12
Applicant: WIEDERAUFARBEITUNG VON KERNBRE
Abstract: 1433026 Ion-exchange WIEDERAUFARBEITUNG VON KERNBRENNSTOFFEN GmbH 12 June 1973 [23 June 1972] 27808/73 Heading B1J An apparatus for the continuous treatment of liquid streams with solids continuously circulated in a countercurent flow comprises a treatment column and a regeneration column, or a plurality of series-connected treatment columns and a single regenerating column, or an equal number of treatment and regeneration columns each treatment column having a plurality of plates, a heating or cooling jacket, a counterpressure chamber, devices for the finely dispersed feeding of solutions a) in the upper part of a treatment column, b) in each central part of a treatment column, and c) in each bottom part of a treatment column, an inlet for the regenerated solids at each head of a treatment column, an inlet for the transport liquids required for circulation of the solids at each bottom end of a counterpressure chamber, and an outlet at each head of a column and each bottom end of a counterpressure chamber, each regeneration column having a plurality of plates, a heating or cooling jacket, a counterpressure chamber, a device for the finely dispersed feeding of elutant and/or regeneration solutions for the elution and/or regeneration of solids in the bottom part of each regeneration column, an inlet for the loaded and washed solids in the head of each regeneration column, an inlet for the transport liquids required for circulation of the solids at each bottom end of a counterpressure chamber pertaining to a regeneration column, an outlet for the solutions eluting the solids at each upper end of a regeneration column, and an outlet at each head of a regeneration column and each bottom end of a counterpressure chamber pertaining thereto; and, in the case of an equal number of treatment and regeneration columns, valveless connection lines between each bottom end of a counterpressure chamber pertaining to a regeneration column and the head of the adjacent treatment column and, in the reverse direction, between each bottom end of a counterpressure chamber pertaining to a treatment column and the head of said regeneration column, and, in the case of a plurality of treatment columns and a single regeneration column, a valveless connection line between the bottom end of the counterpressure chamber of the regeneration column and the head of one of said treatment columns, and, in the reverse direction, between the bottom end of the counterpressure chamber of another of said treatment columns and the head of the regeneration column.
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公开(公告)号：DE2540020A1
公开(公告)日：1976-04-08
申请号：DE2540020
申请日：1975-09-09
Applicant: ASAHI CHEMICAL IND
Inventor： MISUMI TERUYUKI , MIYAJI TOSHIO , KASAI MASAO
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