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WO/2022/228441A1 |
A multi-way valve, comprising a driver (9), and a first fixing member (1), a first rotating structure (2), a liquid distribution structure (3), a second rotating structure (4), and a second fixing member (5) that are stacked in sequence....
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WO/2022/212419A1 |
A system and method for on-site cleaning of an ion exchange resin is disclosed. The system includes a mixing tank in fluid communication with a resin vessel, first and second chemical sources, first, second, and third pumps, and a deioni...
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WO/2022/210525A1 |
A waste water treatment system for treating recycle waste water generated when a desalination device for desalinating water containing ammonia is subjected to regenerative treatment, using an aqueous acidic solution, the system comprisin...
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WO/2022/209391A1 |
Provided is a method for purifying a non-aqueous liquid in a simple and cost-efficient manner, without requiring a large amount of the non-aqueous liquid, by using an ion exchange resin having a reduced water content. The method for puri...
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WO/2022/203055A1 |
The present invention provides a method for producing lithium hydroxide which employs, as a source liquid, a wide variety of aqueous solutions containing lithium and which efficiently produces highly pure lithium hydroxide from the sourc...
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WO/2022/201753A1 |
This water softening device comprises: a water softening unit which softens raw water by means of an ion exchange resin; a recovery water supply unit which supplies, to the ion exchange resin, recovery water which recovers the ion exchan...
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WO/2022/181092A1 |
This method for regenerating a water-softening device 10 involves the use of a water-softening device 10 provided with a water-softening tank 12 that accommodates a weakly acidic cation exchange resin, an electrolysis tank 14 that genera...
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WO/2022/174350A1 |
A process for battery chemical production, where a sodium sulfate stream is treated with an ion exchange process to provide potassium sulfate and sodium chloride. The sodium chloride may be treated with a chlor-alkali to produce sodium h...
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WO/2022/173886A1 |
A system for removing long-chain and short-chain per- and polyfluoroalkyl substances (PFAS) from contaminated water using a regenerable anion exchange resin includes at least one first anion exchange resin vessel configured to receive a ...
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WO/2022/135731A1 |
The present application relates to a recirculation method for the continuous mineralization of an organic acid in an aqueous solution used for the stripping of radionuclides from an ion exchanger, by means of an electrolyzer comprising a...
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WO/2022/113741A1 |
This water softening device (1) comprises a water softening tank (3) and a neutralizing tank (4). The water softening tank (3) softens raw water containing hardness components by means of a weakly acidic cation exchange resin (7). In add...
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WO/2022/102263A1 |
The present invention provides a purification method for a liquid to be processed, said method reducing the content of metal impurities in a liquid to be processed containing tetraalkylammonium ions, while being capable of suppressing th...
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WO/2022/087738A1 |
A process for the removal of anionic radionuclides from spent ion exchange resin comprising mixing at least one reagent with said resin in solution to form a first mixture, and removing the anionic radionuclides from the spent ion exchan...
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WO/2022/087656A1 |
The invention provides a process for removing cyanide from a cyanide-bearing aqueous fluid, the process comprising: (i) adding a solid composition comprising a first mixed-metal cyanide complex comprising copper and iron to a cyanide-bea...
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WO/2022/084145A1 |
The invention relates to composite material comprising polymer microfibers and lithium- adsorbent particles characterized in that said polymer microfibers have a diameter comprised between 10 µm and 500 µm, and said composite material ...
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WO/2022/065702A1 |
A method for recovering active metals of a lithium secondary battery comprises the steps of: collecting a cathode active material mixture from the cathode of the lithium secondary battery; subjecting the cathode active material mixture t...
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WO/2022/064154A1 |
The invention relates to a purification method, comprising the following steps: - supplying a stream (6) comprising a non-ionised species, monovalent cations and divalent cations; - bringing the stream (6) into contact with a first catio...
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WO/2022/065158A1 |
A water softening device comprising: a water softening tank in which raw water is softened with a weakly acidic cation-exchange resin; a pH adjustment tank; an electrolysis tank in which acid electrolysis water is generated; a conductivi...
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WO/2022/055031A1 |
A water purification system according to the present invention comprises: a cyclone housing which has formed therein an accommodating space receiving and storing water before water purification is introduced, and separates floating matte...
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WO/2022/039932A1 |
Embodiments of the present disclosure are directed to methods for recycling waste ion exchange materials comprising a first alkali metal salt and a second alkali metal salt comprising reducing the size of the waste ion exchange materials...
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WO/2022/015178A1 |
A washing appliance such as a dishwasher or laundry washing machine comprises an ion-exchange water softening section and a brine generator to supply brine to the water softening section to regenerate ion-exchange resins therein, and a v...
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WO/2022/010582A1 |
A continuous resin regeneration system (10) includes a process by which resin in need of being recharged is continuously recharged and cleaned with a plurality of two-set filtration columns (20, 30, 40) so that resin regeneration and the...
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WO/2022/004180A1 |
This water softening device (1) comprises a water softening tank (3), a neutralizing tank (4), an electrolyzing tank (12), and a control unit (30). The water softening tank (3) softens, with a weakly acidic cation exchange resin (10), ra...
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WO/2021/257946A1 |
A system and method for water purification by capture of contaminants in an aqueous mixture is described herein. A system and method for regenerating the capture system is also described. An integrated capture and regeneration system and...
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WO/2021/244169A1 |
Disclosed are a main control valve and a multi-tank control valve bank comprising same. The main control valve is provided with a water intake cavity (111), a water output cavity (112) and an ejector (20). A surface of the main control v...
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WO/2021/238315A1 |
A grafted quaternary ammonium group cation resin and a preparation method therefor. The method comprises sequentially adding cross-linked chloromethyl polystyrene resin, trimethylamine hydrochloride, and a 20% sodium hydroxide aqueous so...
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WO/2021/213313A1 |
Disclosed in the present invention are a water softener and a regeneration method thereof. The water softener comprises: a softening resin tank and a salt box; a multi-way control valve connected to the softening resin tank, wherein a wa...
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WO/2021/215099A1 |
In the present invention, weakly acidic cation exchange resin is regenerated by: replacing desalinated waste water hardness-components, which are produced as a result of a desalination treatment in an ultrapure water production process, ...
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WO/2021/200495A1 |
A water softening device equipped with: a water softening tank in which raw water containing a hardness component is softened with a weakly-acidic cation exchange resin; an electrolysis tank in which alkaline electrolyzed water and acidi...
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WO/2021/201023A1 |
A water softener apparatus 10 comprises a water softening tank 12 for rendering raw water containing hardening ingredients into soft water by means of weakly-acidic cation exchange resin, an electrolyzing tank 14 for generating first aci...
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WO/2021/201021A1 |
A water softening device 10 is provided with: a water softening tank 12 that uses a weakly acidic cation exchange resin to soften hard water containing a hardness component; a reclamation raw water supply unit 110 that supplies reclamati...
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WO/2021/159185A1 |
The present invention relates to a process and plant for treating feed water containing nitrate. The process includes, sorbing nitrate from the feed water onto an ion exchange resin to form a loaded resin and produce a treated water stre...
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WO/2021/148417A1 |
The invention relates to a water softener apparatus comprising a housing, said housing having a chamber for accommodating at least one compressed salt block having an elongate block form, the configuration being such that the compressed ...
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WO/2021/146417A1 |
Systems and methods use ion exchange to extract lithium from a lithium-containing feed solution such as a salar brine. Lithium ions are loaded into an ion exchange resin and then eluted while recharging the resin. Sodium hydroxide or sod...
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WO/2021/140764A1 |
Provided is a method for purifying a non-aqueous solvent, the method characterized by comprising: a pretreatment step for passing a non-aqueous solvent for dehydration treatment through an ion exchange resin-filled layer prior to dehydra...
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WO/2021/116948A1 |
Devices, systems and methods for removing minerals from a conductive protonic fluid and creating oxidizers therein. A flow of electrons in the fluid precipitates hardness causing minerals from the fluid. The decrease in minerals leads to...
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WO/2021/090153A1 |
The technology is designed for demineralisation (desalination) of water for technological needs. The technology does not generate polluting waste from the demineralisation process. Desalinated water is used in industrial processes to pro...
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WO/2021/090916A1 |
Provided is a method for preparing a hypochlorous acid aqueous solution by which a weakly acidic hypochlorous acid aqueous solution having a pH of about 3.5-7 can be obtained without substantially generating chlorine gas even immediately...
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WO/2021/085163A1 |
A water softener which is provided with: a water softening cell which softens raw water that contains a hardness component by means of a weak acidic cation exchange resin; an electrolysis cell which produces alkaline electrolyzed water a...
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WO/2021/059941A1 |
For recovering scandium from an acidic solution containing at least scandium and chromium via an ion-exchange treatment using a chelate resin, the present invention provides a method for efficiently concentrating the scandium while suppr...
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WO/2021/059940A1 |
The present invention provides a method for recovering scandium from an acidic solution, which contains at least scandium, nickel and chromium, through an ion exchange treatment using a chelating resin, said method recovering high-purity...
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WO/2021/052432A1 |
A low-loss organic amine solution purification device and a use method thereof. Said device comprises an ion exchange bed (X1); an inert gas cylinder (C1), a fifth liquid storage tank (T5) and a second liquid adding pump (P2) are install...
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WO/2021/043767A1 |
The invention relates to a method for desorbing carbon dioxide from polymeric organic anion exchangers having primary and/or secondary amine groups, to which the carbon dioxide is bonded as carbamate, by means of heating by microwave rad...
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WO/2021/024938A1 |
This water softener (101) comprises a water-softening tank (103), a neutralizing tank (104), an electrolytic tank (112), and a treatment tank (113). The water-softening tank (103) softens, with a weakly acidic cation-exchange resin (110)...
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WO/2021/016841A1 |
Disclosed is an all-in-one machine for continuously supplying soft water. The all-in-one machine comprises a double-layer valve, a secondary tank connecting component, a main resin tank, a secondary resin tank, an ejector, a two-position...
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WO/2020/241476A1 |
The purpose of the invention is to further reduce fine particles contained in ultrapure water to be supplied to a point of use. An ultrapure water production system 1 has: an ultrapure water supply line L1 that is connected to points of ...
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WO/2020/228638A1 |
The present invention relates to the field of resin regeneration and relates to a method for efficiently regenerating a resin by using an electrolytic salt solution. The method for efficiently regenerating a resin by using an electrolyti...
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WO/2020/226039A1 |
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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WO/2020/225522A1 |
A water treatment method to generate potable water and a fertilization or fertigation product is provided. The method comprises the steps of: passing a raw water stream through an anion exchange resin (14a, 14b) to generate a potable wat...
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WO/2020/190770A1 |
A method for regeneration of an ion exchange material employed in a water softening or conditioning system. The method includes the step of contacting the ion exchange material with an aqueous process fluid that includes a compound havin...
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