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JP2023047032A |
To provide a stable slightly acidic aqueous hypochlorite solution and a method for producing the same.By shortening the ion exchange time between a sodium hypochlorite solution and an ion exchange resin and repeating this step by step or...
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JP7248090B1 |
Kind Code: A1 Abstract: Impurities in an organic solvent used for manufacturing and washing processes of mechanical parts and electronic parts, or for chemical synthesis are removed to a high degree. A removal material for removing impur...
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JP7245012B2 |
Provided are an electrolyte refining apparatus and an electrolyte refining method capable of reducing the hydrofluoric-acid content and the moisture content of an electrolyte by means of a simple method. The present invention provides an...
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JP2023511119A |
The present disclosure relates to methods and systems for purifying solvents. Purified solvents can be used to clean semiconductor substrates in multi-step semiconductor manufacturing processes.
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JP2023037102A |
To provide a water softener which enables quick shift to water softening treatment from regeneration treatment, and efficient water softening.A water softener 1 includes: a plurality of water softening tanks 3 for softening raw water con...
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JP2023035836A |
To provide a method for producing an active-ray- or radiation-sensitive resin composition which contains an onium salt containing anion having a pKa of a conjugate acid of 2.0 or more and is excellent in LWR performance after etching, a ...
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JP7237714B2 |
Provided is a water treatment apparatus that can reduce the amount of chemical solution addition. A water treatment apparatus is provided with a decarbonation apparatus, a first adjustment section, a first water softening apparatus, a se...
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JP2023034382A |
To provide a water softener which can suppress degradation in regeneration efficiency of other ion exchange resin generated by completion of regeneration processing of one ion exchange resin, in regeneration processing of a weakly acidic...
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JP7234104B2 |
To provide a high temperature water purification device and a high temperature water purification method that can stably purify ionic components such as sulfate ions existing in high-temperature treated water such as water in power plant...
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JP7232842B2 |
A process for recovery of lithium ions from a lithium-bearing brine includes contacting the lithium-bearing brine with a lithium ion sieve (where that LIS includes an oxide of titanium or niobium) in a first stirred reactor to form a lit...
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JP7229023B2 |
To provide a method for filtering liquid medicine containing a carboxylic acid derivative, capable of suppressing hydrolysis of the carboxylic acid derivative.In a method for filtering liquid medicine containing a carboxylic acid derivat...
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JP2023024975A |
To suppress dissolution and degradation of ion exchange particles used in the extraction of lithium from liquid resources such as natural and synthetic brines, leaching solutions from minerals and recycled products.A coated ion exchange ...
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JP7218600B2 |
To provide an ion exchange resin treatment polymer for maintaining a high entanglement prevention performance of a mixed bed ion exchange resin composition for a long period of time, and, also, a mixed bed ion exchange resin composition ...
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JP7217590B2 |
To provide a pure water producing apparatus and a pure water producing method capable of grasping the internal state of an ion exchange column more accurately.A pure water producing apparatus for producing pure water using an ion exchang...
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JP7215094B2 |
To provide a regeneration device for ion exchange resins capable of reducing the turbulent flow of a back washing water in the vicinity of a resin separation boundary face to improve a resin separation precision.In an ion exchange resin ...
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JP7214312B2 |
An ion exchanging unit exchanging ions contained in water includes a container for storing a plurality of ion exchange resins, a water supplying path through which to supply water to the container, a pure water discharging path through w...
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JP7214426B2 |
To provide a refiner and a refining method of sugar solution capable of improving a throughput, while maintaining a desalination performance of a mixed bed type system, and the amount of sweet water.There is provided a sugar solution ref...
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JP7213023B2 |
A method for removing a metal in a liquid, whereby a metal in a liquid to be treated is removed by contacting the liquid to be treated with an H-type chelate resin mixed with an anion exchange resin, characterized in that the anion excha...
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JP2023009492A |
To provide an adjustment method of a boron selective anion exchange resin capable of reducing a period of washing, after performing a regeneration process of an OH type boron selective anion exchange resin.There is provided an adjustment...
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JP7208362B2 |
A pore-filled ion exchange polyelectrolyte composite membrane from which the surface ion exchange polyelectrolyte has been removed and a method of manufacturing the same are provided. The ion exchange polyelectrolyte composite membrane e...
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JP2023007322A |
To provide a fluorine-based polymer composition and an ion exchange membrane which can suppress foaming during membrane-making and peeling during laminate-making.A fluorine-based copolymer composition contains a fluorine-based copolymer ...
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JP2023002284A |
To provide an operation control method for solution purification apparatus that can determine when to regenerate or replace an ion-exchange resin in a solution purification apparatus using an ion-exchange resin.Provided is an operation c...
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JP2022554238A |
To reduce contamination of scandium oxide products, the present disclosure provides methods for removing at least one metal contaminant from scandium (Sc) concentrates. The method is based on contacting the Sc concentrate with an ion exc...
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JP7195649B2 |
The present invention realizes a technique that makes it possible to reduce the amount of acidic liquid used for acidic liquid regeneration that includes adsorption agent regeneration. This regeneration device for a bath liquid regenerat...
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JP7193921B2 |
To provide a pure water production apparatus capable of treating an ion exchanger with a more optimal regeneration frequency and amount of regenerant, reducing running costs, and suppressing deterioration of the quality of pure water.The...
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JP2022188368A |
To control with a simple structure and to suppress lowering of water softening property in a water softening device.A water softening device comprises: a hardness component removing apparatus 20 storing an ion exchange resin 23; a pool t...
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JP2022183667A |
To provide a novel method for producing lactulose.A method for producing lactulose by isomerizing lactose, includes: a step (1) of preparing a catalyst-fixed ion exchanger comprising an ion exchanger fixed with a lactose isomerization ca...
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JP2022182881A |
To provide a method for manufacturing a semiconductor material compound which can efficiently remove metal remaining in a compound using a metal sequestering agent having high solubility in a solvent.A method for manufacturing a semicond...
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JP7182427B2 |
To provide a device for producing a nonaqueous electrolytic solution, which is capable of easily performing purification while effectively suppressing an amino group of a weak-base anionic ion exchange group from being modified to a quat...
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JP2022179095A |
To provide a method of producing hypochlorous acid water, capable of not so sensitively, flexibly, and practically instantaneously adjusting pH of hypochlorous acid water to be generated, and more surely preventing generation of chlorine...
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JP7177980B2 |
To provide a strong anion-exchange fiber composed of a polymer having imidazoline groups, tetrahydro pyrimidine groups and enhanced water insolubility for solving the problem in which: the use of a polymer having an imidazoline group and...
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JP2022171645A |
To provide an ion exchange membrane which can increase a surface area of a membrane effective for ion permeation, can properly reduce electrical resistance of a flow path between membranes and adhesion of adherents and further increases ...
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JP2022171644A |
To provide an ion exchange membrane which can increase a surface area of a membrane effective for ion permeation and has a wide range of salt concentration and high physical strength with less deformation or damage due to swelling even w...
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JP2022547064A |
The present disclosure relates to methods and systems for purifying solvents. Purified solvents can be used to clean semiconductor substrates in multi-step semiconductor manufacturing processes.
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JP7163186B2 |
The present invention pertains to methods, uses, compositions and kits for treating RNA at conditions comprising a temperature of at least 70° C. and a pH of at least 8, preferably a pH of at least 9. It also pertains to methods, uses a...
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JP2022545155A |
(i) a hydrophilic organic solvent, (ii) a hydrolyzable organic solvent, or (iii) a mixture of a hydrophilic organic solvent and a hydrolyzable organic solvent, from a hydrophilic organic solvent, from a hydrolyzable organic solvent, or f...
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JP2022163531A |
To provide: an ion exchanger which hardly shrinks when coming into contact with an organic solvent in a water-wet state; and a method for producing the ion exchanger.Provided is an ion exchanger comprising a polymer chain represented by ...
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JP2022162479A |
To provide an ion exchange apparatus integrated with a filtration membrane which integrates an ion exchange apparatus and a membrane filtration apparatus capable of saving space and is easy to handle.An ion exchange apparatus integrated ...
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JP2022161597A |
To provide an anionic treatment agent that removes the disadvantages of an anionic treatment agent using a layered double hydroxide as a raw material and improves the anion exchange ability, and is suitable for inventory management.An an...
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JP7157142B2 |
Provided are: an anion exchange resin that has less of an odor and is suitable for use in ultrapure-water production systems and the like; and a water treatment method that uses the anion exchange resin. An anion exchange resin that has ...
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JP7155696B2 |
To provide a method for always keeping lithium concentration after elution constant in an elution method of lithium adsorbed to an ion exchange resin from a manufacturing process wastewater including lithium of a positive electrode mater...
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JP7153471B2 |
To provide a filter capable of efficiently removing metal ions in a treatment liquid, and capable of easily obtaining a solution having an extremely low metal ion content. A depth filter includes a porous molded article. The porous molde...
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JP7153580B2 |
An apparatus for pretreating ion exchange resin and a method for pretreating ion exchange resin, capable of easily and economically reducing the moisture content, is provided.The apparatus for pretreating an ion exchange resin comprises ...
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JP2022157042A |
To provide a refining method of a non-aqueous solvent using an ion exchange resin where a water content is easily and economically reduced without needing various kinds of non-aqueous solvents for pretreatment.A refining method of a non-...
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JP7152998B2 |
To provide a technique that can suppress the fluidization of resin during its regeneration, without the need for making an ion exchange resin tower a complicated structure, and facilitates loading/unloading of an ion exchange resin.The p...
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JP2022152649A |
To provide a purified water producing method and a purified water producing apparatus which can sufficiently remove an organic substance from water to be treated while preventing pH of purified water from decreasing, can shorten the reco...
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JP7149949B2 |
The present invention relates to a process for producing polymer beads having a porous polymeric matrix in which is distributed solid particulate material; the process comprising: (i) providing a dispersion having a dispersed phase and a...
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JP2022542517A |
Devices, systems and methods for broad-spectrum reduction of pro-inflammatory cytokines in the blood. Proinflammatory cytokines can circulate freely in the blood and are transported within the surface of particles collectively called cel...
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JP2022145529A |
To provide a cation exchange membrane capable of reducing a surface damage during membrane exchange while keeping a low electrolysis voltage, and an electrolysis tank.A caution exchange membrane comprises a layer (A) including a fluorine...
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JP7146568B2 |
To provide a method and apparatus for purifying an organic solvent, in which, when purifying an organic solvent that is miscible with water using an ion exchange resin, the ion exchange resin can be exchanged at an appropriate timing by ...
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