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JP6728905B2 |
To provide a method for purifying cobalt chloride solution without cadmium remaining in a cobalt chloride solution after adsorption treatment when zinc and cadmium in the cobalt chloride solution is absorption removed by contacting a wea...
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JP6722552B2 |
To provide a washing machine of a non-regeneration type ion exchange rein capable of increasing water quality in short time and reducing drainage volume without adjusting (reducing) production amount of ultrapure water, and an ultrapure ...
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JP6719292B2 |
To provide an evaluation method enabling a content of an organic matter in water, in particular, controversial humus and surfactants and the like in water in a water treatment system to be easily obtained in a short period of time, and a...
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JP2020082048A |
To provide a process using no organic solvent for refining nickel existing in a high-concentration hydrochloric acid solution in order to improve safety of an operator using the organic solvent and to reduce an environmental load althoug...
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JP6701915B2 |
To provide an ion exchange device for improving sealability between a raw material introducing port of a regeneration liquid tank and a lid member for closing the raw material introducing port.There is provided an ion exchange device whi...
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JP6701914B2 |
To provide an ion exchange device capable of preventing a raw material of a regeneration liquid from falling into a regeneration liquid tank, a pressure tank, a flow path control valve unit or a piping part and preventing a user from unn...
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JP6697205B2 |
The present invention relates to the field of heavy metal containing waste water treatment, particularly relates to the preparation, regeneration and application of a chelating microfiltration membrane. The main technical features of the...
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JP2020513302A |
In the present invention, the solution to be purified is ion-exchanged by suspending the ion exchange resin in the form of particles having a size of Dv50 of 200 μm or less in the solution to be purified in the next continuous step. Reg...
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JP6688570B2 |
To provide a water softening device in which the operation for regenerating a cation exchange resin is easy.Provided is a water softening device comprising: an ion exchange resin part having a cation exchange resin for softening water; a...
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JP6689849B2 |
The present invention provides a method for reducing the concentration of aluminum and nickel cations in a brine comprising aluminum and nickel cations. The treated brine can be used as a feedstock to membrane cell chlor-alkali process.
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JP6688571B2 |
To provide a softening device which can be easily operated for reproduction of a cation exchange resin.A softening device comprises: an ion exchange resin part for softening water; a tank; a water inlet part which is disposed on a downst...
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JP6682981B2 |
To provide a regeneration liquid supply unit which comprises a regeneration liquid tank having a high degree of freedom of shape and capable of easily placing a regeneration liquid plate in the regeneration liquid tank.There is provided ...
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JP6672979B2 |
To provide an ion exchange device capable of realizing a more compact outer shape by effectively utilizing the internal space of a housing.There is provided an ion exchange device 1 which comprises a pressure tank 2, a regeneration liqui...
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JP6672980B2 |
To provide an ion exchange device capable of reducing the number of drain pipes.There is provided an ion exchange device 1 which comprises a pressure tank 2, a regeneration liquid supply unit 4, a piping unit, a flow path control valve u...
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JP2020039992A |
To provide a water softener which prevents outflow of treated water containing salt water in an ion exchange resin filling tank and prevents shortage and insufficient regeneration of the salt water in regeneration operation, even when bl...
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JP2020040028A |
To provide a water softener which performs washing operation of washing an organic matter eluted from an ion exchange resin in a non water passage state at prescribed time everyday.A water softer 1 that passes treated water through an io...
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JP6662908B2 |
Disclosed is a water purification device that can be carried easily to a desired place and with which it is possible to obtain delicious water including mineral components while simplifying the construction of the water purification devi...
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JP6662171B2 |
To provide an ion exchange apparatus that hardly suffers restrictions of an installation site space, can be fixed using an anchor member in many installation sites, and achieves enhancement of a fixing force by the anchor member.An ion e...
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JP6660017B2 |
To provide a regeneration liquid supply unit comprising a regeneration liquid tank which allows a raw material chemical agent to be easily placed on a regeneration liquid plate even in the vicinity of a regeneration liquid valve or an ov...
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JP6660007B2 |
To provide an ion exchange device capable of sufficiently reducing bacterial count in a pressure tank accommodating an ion exchange resin bed.There is provided an ion exchange device 1 having a pressure tank 2 accommodating an ion exchan...
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JP2020028872A |
To provide an ion exchange resin regeneration system that is excellent in maintainability and environmental friendliness.The ion exchange resin regeneration system includes salt water conducting means for conducting sodium chloride aqueo...
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JP2020025923A |
To prevent an ion exchange device from being damaged when an ion exchange resin is regenerated.The ion exchange device has a container, first and second piping, a nozzle and a joint. In the container, an ion exchange resin is accommodate...
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JP6646065B2 |
Acid hydrolysis of biomass is an important step for releasing the component sugars before converting them to fuels and/or biochemicals. During such a process, a significant amount of mineral acid, such as sulfuric acid, is used. In most ...
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JP6644805B2 |
The present invention addresses the problem of providing a method that further increases the phosphate-ion adsorption efficiency of an adsorbent that has an iron oxyhydroxide as a main component. According to this method, target anions a...
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JP2020021668A |
To provide an ion exchanger capable of evening a flow of cooling liquid in a cooling system of a fuel battery system.An ion exchanger 2, a liquid-gas separator 3, and a reserve tank 4 are integrally formed on an ion exchanger module 1. T...
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JP6642231B2 |
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JP2020001955A |
To develop a method capable of improving properties of removing coarse chloride containing an anionic metal chlorine complex to obtain the refined chloride having higher purity in a charged metal impurity.A method for producing a refined...
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JP2019217463A |
To provide a method for removing boron from water to be treated, capable of stably, efficiently, and controlling a boron concentration in RO membrane permeated water to a desired low level at a low operating cost.There is provided a meth...
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JP2019535503A |
The present invention relates to the extraction of lithium from liquid resources such as natural and synthetic brine, inorganic and exudate solutions from recycled products using coated ion exchange particles containing ion exchange subs...
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JP6609736B2 |
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JP6612828B2 |
The present invention relates to quaternized diethylenetriamine-functionalized polyacrylate bead polymers, to a process for preparing same and to their use in the removal of oxoanions, particularly chromium (VI) oxoanions from aqueous- a...
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JP6601642B2 |
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JP2019188323A |
To provide a soft water supply facility which prevents a hardness leakage and which can reduce salt consumption by collecting water to a limit of an allowable water collection amount.In a soft water supply facility, two water softeners 1...
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JP2019178387A |
To provide an elution method for effectively eluting at least one of Sb and Bi from a chelate resin to which at least one of Sb and Bi is adsorbed.An elution method includes eluting at least one of adsorbed Sb and Bi by contacting an aci...
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JP2019173041A |
To provide: a method for refining copper, capable of reducing the content of nickel being an impurity when separating and refining the copper from the nickel to collect a refined solution including high purity copper; a chelating resin; ...
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JPWO2018092395A1 |
In the electrodeionizer 1, a plurality of cation exchange membranes 2 and anion exchange membranes 3 are alternately arranged at intervals, and ion exchange resins 4 are placed in a space formed by the cation exchange membrane 2 and the ...
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JP2019171293A |
To provide a pure water regeneration method and a pure water regeneration apparatus that improve a regeneration step to reduce an amount of pure water used in the regeneration step, thereby reducing the capacity of a pure water tank for ...
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JP2019163182A |
To provide a purified liquid with a high-purity zirconium that has a reduced content of titanium impurities in cases where zirconium is separated and purified from yttrium.A method for purifying zirconium according to the present inventi...
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JP6577388B2 |
To provide a method and apparatus for processing a used ion exchange resin, capable of: reducing a generation amount of secondary waste with simple facility; and desorbing radionuclides and heavy metal elements attached to the used ion e...
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JP2019141804A |
To provide a method for regenerating an ion exchange device capable of sufficiently regenerating an ion exchange resin that adsorbs an organic matter.A method for regenerating an ion exchange device including a step of passing a regenera...
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JP2019141803A |
To provide a method for regenerating an ion exchange device capable of accurately regenerating an ion exchange resin.A method for regenerating an ion exchange device including a step of passing a regeneration chemical liquid to an ion ex...
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JP2019136678A |
To provide wastewater recycling methods that can favorably recycle the wastewater containing metal ions and halide ions generated when phase separation is performed by mixing a polymer solution obtained by a polymerization reaction using...
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JP6555588B2 |
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JP2019128284A |
To provide an interface detection method capable of accurately detecting an interface formed between particulate layers whose specific gravities are different.A cation exchange resin and an anion exchange resin are separated by a specifi...
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JP2019118891A |
To provide a pure water producing apparatus and a pure water producing method capable of reducing the TOC load on a strongly basic anion exchange resin by efficiently utilizing a weakly basic anion exchange resin which is easy to regener...
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JP6536928B2 |
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JP6535532B2 |
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JP6535538B2 |
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JP2019098206A |
To decrease volume of an ammonia-containing drainage discharged from a plant or the like and concentrate ammonia in the ammonia-containing drainage for reducing facility size of a treatment device arranged in a latter part.An ammonia-con...
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JP6532524B2 |
Described herein is a process for recovering a branched, ether-containing fluorinated emulsifier from an anion exchange resin by (1) contacting the anion exchange resin with a recovery fluid to form an eluate, the recovery fluid comprisi...
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