41 results about "Anion exchanger" patented technology

A method of producing a solution containing hemoglobin A2 and a method of producing a hemoglobin precision control substance, the methods including contacting a solution containing hemoglobin and having a pH of from 7.8 to 9.5 with an anion exchanger, are provided.

The utility model relates to the field of desalted water equipment, in particular to a desalted water production system of a nuclear power plant. The utility model relates to a desalted water production system for a nuclear power plant, which comprises a nuclear power plant cooling water collection tank, an ozone oxidation tower, a flocculation sedimentation tank, a multi-medium filter, an activated carbon / resin filter, a desalted seawater collection tank, a roll-type ultrafiltration energy recovery device, a roll-type ultrafiltration device, a reverse osmosis energy recovery device and a reverse osmosis device which are sequentially arranged, the device comprises an anion exchanger, a cation exchanger, a mixed bed and a demineralized water collecting tank.

The invention discloses an ion exchange washing alkaline water recycling system, and relates to the field of water treatment. The system comprises an anion exchanger, a washing alkaline water collection pipeline, an online monitoring unit, a shunting switching unit, a weak acid cation exchange treatment unit, an acid liquid regeneration unit, a pipeline conveying pump, a decarburization unit, an intermediate water tank, a recycling unit and a control unit. The online monitoring unit is arranged at the washing drainage end of the anion exchanger, the water quality of the washing alkaline water is detected in real time, and graded recovery of the washing alkaline water is achieved in combination with the shunt switching unit; the recycled washing alkaline water enters a weak acid cation exchange treatment unit to be subjected to ion exchange treatment so as to reduce the alkalinity of the water body; meanwhile, the weak-acid cation exchange resin is regenerated by utilizing acidic waste liquid generated by regeneration of the cation exchange bed, so that synergistic utilization of acid and alkali resources is realized; the treated water body sequentially passes through the decarburization unit and the middle water tank and then is reused for the pure water preparation system.

A process for preparing a modified latex particle wherein the particle comprises a polycondensate bonded to a functional group on the latex particle and the process for forming a polycondensate comprises reacting an amino group present on the latex particle with (i) at least a first polyfunctional compound, or (ii) at least a first multifunctional compound having at least two functional groups that react with said functional groups of the latex, and at least a first amine compound comprising an amino group selected from the group consisting of ammonia, primary amines and secondary amines, or (ii) at least a second multifunctional compound having at least two functional groups that react with said functional groups of the latex, and at least a second amine compound comprising an amino group selected from the group consisting of ammonia, primary amines and secondary amines, to form a first polycondensate reaction product comprising ion exchange sites and a first unreacted excess of functional groups.

A bipolar electrodialysis method using an electrodialysis apparatus with a bipolar membrane (BP) and a cation exchange membrane (C) disposed between an anode (10) and a cathode (11) to generate acid and alkali from salt, characterized in that when the electrodialysis apparatus is de-energized, the alkali chamber facing the anion exchanger (a) of the bipolar membrane (BP) is acid-washed with an acidic aqueous solution with a pH of less than 3.5.

1. A method for producing modified latex particles, the particles comprising condensation polymers attached to functional groups on the latex particles, and the method for forming the condensation polymer comprises reacting amino groups present on the latex particles with either (i) at least a first multifunctional compound having at least two functional moieties reactive with the functional groups of the latex, or (ii) at least a first multifunctional compound having at least two functional moieties reactive with the functional groups of the latex, and at least a first amine compound comprising an amino group selected from the group consisting of ammonia, primary, and secondary amines, to form a first condensation polymer reaction product comprising ion exchange sites and a first excess of unreacted functional moieties.

The present invention provides a water treatment system for more efficiently removing hardly decomposable organic substances. A pure water production device (1A) (water treatment system) includes: a halogen oxyacid addition unit (21) that adds a halogen oxyacid to water to be treated containing organic substances; and an ion exchanger filling device (14) that is located downstream of the halogen oxyacid addition unit (21) and filled with at least an anion exchanger. The water to be treated after adding the halogen oxyacid is passed through the ion exchanger filling device (14).

A method for making modified latex particles, wherein the particles comprise condensation polymers bonded to functional groups on the latex particles and the method for forming the condensation polymer comprises reacting the amino groups present on the latex particles with (i) at least a first polyfunctional compound, having at least two functional moieties reactive with said functional groups of the latex, or (ii) at least a first polyfunctional compound, having at least two functional moieties reactive with said functional groups of the latex and at least a first amine compound, comprising amino groups selected from the group consisting of ammonia, a primary and a secondary amine to form a first condensation polymer reaction product comprising ion exchanging sites and a first unreacted excess of functional moieties.

The application belongs to the field of coolant purification of nuclear power plants, and particularly relates to a coolant circulating purification system and method applied to nuclear power plants. The system comprises: a primary coolant storage system cation exchanger, a primary coolant storage system anion exchanger, a primary coolant storage system resin collector, a primary coolant treatment system cation exchanger, a primary coolant treatment system anion exchanger, and a primary coolant treatment system resin collector. A third bypass is arranged in front of the inlet of the primary coolant treatment system cation exchanger, and a valve is arranged in the third bypass to connect to a position after the inlet of the primary coolant storage system cation exchanger. The application can effectively improve the reliability of the primary coolant treatment system in purifying the coolant, and can switch the primary coolant storage system ion exchanger to operate in the case of failure of the primary coolant treatment system ion exchanger.

The present invention belongs to the field of primary circuit water quality control in nuclear power plants, and specifically relates to a control method for end-of-life boron removal of the primary circuit coolant in nuclear power plants. When the resin in the anion resin exchanger is used at the end of its first fuel cycle, the boric acid concentration is reduced to within the range of 150mg / L to 60mg / L, and the anion exchanger is put into operation alone. When the resin in the anion resin exchanger is used at the end of its second fuel cycle, the boric acid concentration is reduced to within the range of 120mg / L to 60mg / L, and the anion exchanger is put into operation alone. When the boric acid concentration is reduced to less than 60mg / L, the cation exchanger and the anion exchanger are put into operation together. When the total alkali metal or dissolved hydrogen concentration in the primary circuit is at the lower limit of the control value, the cation exchanger is temporarily taken out of operation and resumed after the water quality stabilizes. The present invention can effectively prevent water quality deviations and reduce the amount of radioactive resin solid waste in the primary circuit.

Provided is a method for purifying an organic solvent and a device for purifying an organic solvent, with which it is possible to reduce the amount of impurities such as metal impurities of as many kinds as possible from the organic solvent. The method for purifying an organic solvent includes an anion exchanger contact step for bringing an organic solvent to be purified into contact with an anion exchanger A and an anion exchanger B, wherein: the anion exchanger A is an anion exchanger having at least one ionic form that is selected from the group consisting of an OH form, a free base form, a carbonate form, and a bicarbonate form; and the anion exchanger B is a chelate resin that contains a glucamine-type ion exchange group.

Disclosed herein is an anion exchanger, a method for manufacturing an anion exchanger, anion exchange devices, and a system comprising the anion exchanger, wherein the anion exchanger comprises a polyDADMAC polymer, and wherein the anion exchanger is suitable for purifying and concentrating [18F]fluoride.

A water treatment method includes: adding a chemical to water to be treated to obtain water to be treated which contains iodine and is provided with oxidizing power; and supplying the water to be treated that has undergone the chemical addition to an electrodeionization device (EDI device) to treat the water to be treated in the EDI device. At least a part of an ion exchanger filled in a deionization chamber of the EDI device is an anion exchanger.

The utility model discloses a device for recovering condensate water generated by a salt-making MVR (mechanical vapor recompression) device, which belongs to the technical field of condensate water recovery and is characterized by comprising a condensate water tank, the condensate water tank is connected with a filter through a pipeline, and the filter is connected with a cation exchanger through a pipeline. The cation exchanger is connected with a carbon remover through a pipeline, the carbon remover is connected with an anion exchanger through a pipeline, the anion exchanger is connected with a mixed ion exchanger through a pipeline, the mixed ion exchanger is connected with a desalting water tank through a pipeline, and a backwashing water pump is connected between the condensate water tank and the filter. The device can keep the original shape of incoming water, the water production rate is improved, and the stable operation of the system is ensured.

The disclosure relates to a process for producing magnesium hydrogen carbonate and / or calcium hydrogen carbonate. An anion exchanger loaded with bicarbonate ions is provided, and a solution containing magnesium salt and / or calcium salt is then passed through the anion exchanger.

A method for making modified latex particles, wherein the particles comprise condensation polymers bonded to functional groups on the latex particles and the method for forming the condensation polymer comprises reacting the amino groups present on the latex particles with (i) at least a first polyfunctional compound, having at least two functional moieties reactive with said functional groups of the latex, or (ii) at least a first polyfunctional compound, having at least two functional moieties reactive with said functional groups of the latex and at least a first amine compound, comprising amino groups selected from the group consisting of ammonia, a primary and a secondary amine to form a first condensation polymer reaction product comprising ion exchanging sites and a first unreacted excess of functional moieties.

Provided are a method for producing a solution containing hemoglobin A2, a method for producing a solution containing hemoglobin A2 and hemoglobin F, and a method for producing a substance for managing the accuracy of hemoglobin, whereby a solution having a high proportion of hemoglobin A2 can be obtained from a blood sample that is readily available; a method for producing a solution containing hemoglobin A2 and hemoglobin F; and a method for producing a substance for managing the accuracy of hemoglobin. A method for producing a solution containing hemoglobin A2 and a method for producing a substance for managing the accuracy of hemoglobin, each of which comprises a step of bringing a solution containing hemoglobin and having a pH of 7.8-9.5 into contact with an anion exchanger.

The invention discloses a method for preparing an electrolyte precursor through fluorine anion exchange and application of the electrolyte precursor in a solid electrolyte. MXa and LiF are used as raw materials, a mixed product of fluoride and a nano LiX phase is generated in situ through mechanical mixing, the fluoride is Li MF type or MF type, and the mixed product is a solid electrolyte precursor; x in MXa is Cl, Br or I, and a is 2, 3, 4 or 5. The solid electrolyte composite precursor is prepared by utilizing a fluorine anion exchange method, and the high-performance halide or sulfide solid electrolyte is prepared by utilizing the complementary synergistic effect of a nano LiX phase and fluoride in the precursor and is applied to an all-solid lithium ion battery. The preparation method disclosed by the invention is simple in preparation process and high in repeatability, and is favorable for preparing a high-performance solid electrolyte material which is high in stability to lithium metal, wide in electrochemical window and high in ionic conductivity.

The invention discloses a clean-up and split-flow white water recovery system and method. The clean-up and split-flow white water recovery system comprises a pretreatment unit, an ion treatment unit and a post-treatment unit, wherein the ion treatment unit and the post-treatment unit are connected with the pretreatment unit in series; delivering the white water containing cations or anions to a white water collection tank, the white water input stream flowing through an anion exchanger containing anions / cations and a cation exchanger; the cation exchanger and the anion exchanger are connected in series to remove at least part of the anions / cations from the white water input flow so as to generate high-quality water subjected to ion exchange, the white water can be effectively recycled, treated and reused, energy consumption is reduced, and the production cost is reduced.

The utility model relates to the technical field of indirect air cooling water purification, in particular to an indirect cooling water bypass purification treatment system which comprises a main water pipe, a booster pump and a first ion exchanger, the second ion exchanger is arranged at the downstream of the first ion exchanger; the first ion exchanger and the second ion exchanger are respectively a cation exchanger and an anion exchanger; a first branch pipe, a second branch pipe, a first valve and a second valve are arranged on the main water pipe, and a third valve and a fourth valve are arranged on the first branch pipe and the second branch pipe respectively. According to the utility model, the cation exchanger, the anion exchanger and the plurality of valves are arranged, and the water treatment quantity of the cation exchanger and the anion exchanger can be controlled by controlling the opening degrees or switches of different valves, so that the conductivity and the pH value of intercooling water are adjusted, the adjustment of the quality of effluent water is realized, and the use requirements of different intercooling systems are met.

This invention discloses a low-temperature high-conductivity composite solid electrolyte membrane, its preparation method, and its applications, relating to the field of solid-state lithium battery materials technology. The low-temperature high-conductivity composite solid electrolyte membrane comprises: a polymer matrix composed of poly(1,3-dioxolane) and polyvinylidene fluoride-hexafluoropropylene copolymer; an ion-conducting network composed of a metal-organic framework filler with surface-modified -SO3Li groups and lithium sulfonate carbon nanotubes arranged axially along the polymer matrix; and a first antifreeze interface layer and a second antifreeze interface layer disposed on opposite sides of the polymer matrix, wherein the first and second antifreeze interface layers are respectively succinic anion exchanger-glutaronitrile eutectic plastic crystal layers composed of succinic anion exchanger, glutaronitrile, lithium salt, and nano-reinforcing agents. It is suitable for low-temperature environments such as polar scientific research equipment and spacecraft, solving the industrial problems of drastic increase in low-temperature grain boundary impedance and interface contact failure in traditional solid electrolytes.

An efficient way of isolating sialic acid from a fermentation broth is described. The sialic acid contained in the fermentation broth is produced by bacterial fermentation. The method of the invention comprises the steps of removing biomass from the fermentation broth, subjecting the resulting solution to at least one of a cation exchanger treatment and an anion exchanger treatment, and removing salts after the ion exchanger treatment. The method can provide sialic acid in the form of spray-dried sialic acid and in the form of sialic acid crystals.

Provided is a method for producing at least one cannabinoid, the method comprising providing a cell capable of producing and secreting at least one cannabinoid; providing an organic solvent or an anion exchanger; growing the cell in a growth vessel in an aqueous fermentation medium comprising a carbon source, whereby the cell produces and secretes the at least one cannabinoid; contacting the cannabinoid-comprising fermentation medium with the organic solvent or the anion-exchanger, forming a cannabinoid-comprising organic solvent or a cannabinoid-carrying anion exchanger and a cannabinoid-depleted fermentation medium; and separating the cannabinoid-comprising organic solvent or the cannabinoid-carrying anion exchanger from the cannabinoid-depleted fermentation medium.

The utility model discloses a system for removing caking of ion exchange resin for water treatment in sec-butyl alcohol production, and relates to the technical field of sec-butyl alcohol production. According to the utility model, the sec-butyl alcohol feeding pipeline is led out from the bottom of the butene removal tower of the hydration reaction device, so that sec-butyl alcohol flows into the cation exchanger, the anion exchanger I and the anion exchanger II, and the sec-butyl alcohol is used for soaking and circularly removing agglomerated resin, so that autopolymers generated in the butene hydration reaction process are quickly dissolved; and the ion exchange capacity of the resin is recovered through resin regeneration, so that the influence of autopolymer in the butene hydration reaction on the water treatment ion exchange resin is effectively solved, and the problem of caking of the ion exchange resin can be solved without replacing new resin.

The present invention provides a method and apparatus for purifying organic solvents that can reduce the amount of impurities, such as metal impurities, of as many types as possible from the organic solvent. [Solution] A method for purifying an organic solvent, comprising an anion exchanger contact step of contacting the organic solvent to be purified with anion exchanger A and anion exchanger B, wherein anion exchanger A is an anion exchanger having at least one ionic form selected from the group consisting of OH form, free base form, carbonate form, and bicarbonate form, and anion exchanger B is a chelate resin containing a glucamine-type ion exchange group.

The invention relates to a work machine (10) with an energy generation or energy conversion system (14) comprising a mechanical, in particular electromechanical, unit, wherein an oil circuit (11) is assigned to the mechanical unit, wherein at least a portion of the oil conveyed in the oil circuit (11) is passed through a treatment device (22), wherein the treatment device (22) comprises a treatment region (22.1) in which an anion exchanger (22.2) is held, and wherein the anion exchanger (22.2) comprises a complex-bound reducing agent for removing at least a portion of the oxygen from the oil conveyed through the treatment region (22.1). In this way, oxidation of the oil can be avoided and thus its functionality can be maintained.

A method of producing a solution containing hemoglobin A2 and a method of producing a hemoglobin precision control substance, the methods including contacting a solution containing hemoglobin and having a pH of from 7.8 to 9.5 with an anion exchanger, are provided.

The utility model relates to the related technical field of nylon 6 slice preparation, in particular to a nylon 6 slice extraction water purification system. Comprising a candle filter, an efficient fiber ball filter, a hot water storage bin, a pure recovery extraction water storage tank, a backwashing water collecting tank, a cation exchanger, an anion exchanger, an anti-corrosion pump, an acid solution tank, an alkaline solution tank and a water pump, the efficient fiber ball filter comprises an inlet, a fiber ball layer, a fiber ball replacement inlet, an electric stirrer, a left valve, a right valve, a hot water input port and an extracted water outlet, and a differential pressure sensor is arranged at the pipeline joint on one side of the hot water input port. According to the nylon-6 slice extraction water purification system, the extraction water purification effect can be well improved and the service life of the cation exchanger and the anion exchanger can be well prolonged by adding multiple times of filtration of extraction water, cleaning of the efficient fiber ball filter and resin regeneration of the anion-cation filter.

This utility model provides an anion exchanger backwashing system, relating to the field of chemical desalination and demineralized water production technology. The anion exchanger backwashing system includes an anion exchanger, a resin trap, a mixed ion exchanger, and a storage tank connected in sequence. A backwashing pipeline is connected to the storage tank, and a backwash pump and a backwash regulating valve are installed on the backwashing pipeline. An inlet valve is installed on the connecting pipeline between the resin trap and the mixed ion exchanger. The other end of the backwashing pipeline is connected to the connecting pipeline between the resin trap and the inlet valve. The anion exchanger backwashing system can effectively flush away broken resin stuck on the water cap during the service life, ensuring the water production capacity of the anion exchanger, reducing resin breakage, and effectively extending its service life.

The invention relates to an agent from the group of anion exchangers, preferably colestyramine, for the care and prophylaxis of wounds and injuries, in particular in the presence of local bacterial infections or critical colonizations, with the goal of biologically neutralizing bacterial toxins which disrupt the healing process during the healing of the wound. The application can be carried out by directly applying the product or in combination with conventional materials and modern simple wound care methods.