# US 11,305,272 B2 · Ion exchanger filled cartridge and metal removing column

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- Number: US 11,305,272 B2
- Document ID: US11305272B2
- Status: Granted
- Kind: B2
- Application number: 16/469,060
- Filed: 2017-11-10
- Published: 2020-03-05
- Granted: 2022-04-19
- Earliest claimed: 2016-12-13
- Assignees: Organo Corporation
- Applicants: Organo Corporation
- Inventors: Noriko Takada; Akira Nakamura
- Web page: https://patentgrep.com/patent/US11305272B2

## CPC

- B01J 47/024: where the ion-exchangers are in a removable cartridge
- B01D 15/10: characterised by constructional or operational features
- B01D 15/361: {Ion-exchange}
- B01J 39/05: in the strongly acidic form
- B01J 39/07: in the weakly acidic form
- B01J 39/20: obtained by reactions only involving unsaturated carbon-to-carbon bonds
- B01J 41/05: in the strongly basic form
- B01J 41/07: in the weakly basic form
- B01J 41/14: obtained by reactions only involving unsaturated carbon-to-carbon bonds
- B01J 47/022: characterised by the construction of the column or container
- B01J 47/026: using columns or beds of different ion exchange materials in series
- B01J 47/04: Mixed-bed processes
- C02F 1/42: by ion-exchange (ion-exchange in general B01J)
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)

## Abstract

An ion exchanger filled cartridge accommodated inside an accommodating container of a metal removing column and in which an ion exchanger is filled is provided. The ion exchanger filled cartridge includes a cylinder portion, an upper lid in which a through hole for a liquid to be treated is formed and which is provided on an upper end of the cylinder portion, a lower lid in which a through hole for a treated liquid is formed and which is provided on a lower end of the cylinder portion, an insertion pipe connected to the lower lid, having an O-ring attached to an outer side, and inserted into a treated liquid discharge pipe provided on a bottom portion of the accommodating container of the metal removing column, and the ion exchanger filled inside the cylinder portion.

## Claims

### Claim 1

A cartridge accommodated inside an accommodating container of a metal-removing column comprising:
a cylinder portion filled with at least one of an ion-exchange resin and a monolithic organic porous ion-exchanger;
an upper lid in which a through hole for the liquid to be treated is formed and which is provided on an upper end of the cylinder portion;
a lower lid in which a through hole for a treated liquid is formed and which is provided on a lower end of the cylinder portion;
an insertion pipe connected to the lower lid, having an O-ring attached to an outer side, and inserted into a treated liquid discharge pipe provided on a bottom portion of the accommodating container of the metal removing column;
an upper-lid sandwiching member in which a passage port for the liquid to be treated is formed; and
an upper-lid side unwoven cloth or mesh,
wherein the upper-lid side unwoven cloth or mesh is sandwiched between the upper lid and the upper-lid sandwiching member.

### Claim 2 (depends on 1)

The cartridge according to claim 1, wherein
the cylinder portion is made of polytetrafluoroethylene (PTFE).

### Claim 3 (depends on 1)

The cartridge according to claim 1, wherein
an upper-end side pipe-diameter reducing portion where the inner diameter of the cylinder portion decreases as it goes toward the upper end of the cylinder portion and a lower-end side pipe-diameter reducing portion where the inner diameter of the cylinder portion decreases as it goes toward the lower end of the cylinder portion are formed inside the cylinder portion.

### Claim 4 (depends on 1)

The cartridge according to claim 1, wherein
the upper-lid sandwiching member is made of an O-shaped outer side portion having a thread or a screw groove formed on an outer peripheral surface and a cross-shaped or X-shaped inner side portion provided on an inner side in a radial direction of the outer side portion;
the upper lid has an upper-lid side sandwiching member fixing portion having a screw groove or a thread screwed with the thread or the screw groove of the upper-lid sandwiching member formed on an inner peripheral surface; and
the upper-lid sandwiching member is screwed with the upper-lid side sandwiching member fixing portion.

### Claim 5

A cartridge accommodated inside an accommodating container of a metal-removing column comprising:
a cylinder portion filled with at least one of an ion-exchange resin and a monolithic organic porous ion-exchanger;
an upper lid in which a through hole for the liquid to be treated is formed and which is provided on an upper end of the cylinder portion;
a lower lid in which a through hole for a treated liquid is formed and which is provided on a lower end of the cylinder portion;
an insertion pipe connected to the lower lid, having an O-ring attached to an outer side, and inserted into a treated liquid discharge pipe provided on a bottom portion of the accommodating container of the metal removing column;
a lower-lid sandwiching member in which a passage port for the treated liquid is formed; and
a lower-lid side unwoven cloth or mesh,
wherein the lower-lid side unwoven cloth or mesh is sandwiched between the lower lid and the lower-lid sandwiching member.

### Claim 6 (depends on 5)

The cartridge according to claim 5, wherein
the lower-lid sandwiching member is made of an O-shaped outer side portion having a thread or a screw groove formed on an outer peripheral surface and a cross-shaped or X-shaped inner side portion provided on an inner side in a radial direction of the outer side portion;
the lower lid has a lower-lid side sandwiching member fixing portion having a screw groove or a thread screwed with the thread or the screw groove of the lower-lid sandwiching member formed on an inner peripheral surface; and
the lower-lid sandwiching member is screwed with the lower-lid side sandwiching member fixing portion.

### Claim 7 (depends on 1)

A metal-removing column comprising:
an accommodating container;
a supply port for liquid to be treated formed in the accommodating container and supplying a liquid to be treated into the accommodating container;
a treated liquid discharge pipe attached to a bottom side of the accommodating container and communicating with an inside of the accommodating container; and
at least one of the ion-exchange resin and the monolithic organic porous ion-exchanger filled cartridge according to claim 1, accommodated inside the accommodating container, wherein
the insertion pipe is inserted into the treated liquid discharge pipe, and
the O-ring attached to the outer side of the insertion pipe is brought into close contact with an inner wall of the treated liquid discharge pipe and the outer side of the insertion pipe so that a space between the inner wall of the treated liquid discharge pipe and the outer side of the insertion pipe is sealed.

### Claim 8 (depends on 7)

The metal-removing column according to claim 7, wherein
a number of through holes provided on the upper end of the cylinder portion is greater than a number of through holes provided on the lower end of the cylinder portion.