СПОСОБ И УСТРОЙСТВО ДЛЯ НЕПРЕРЫВНОГО УДАЛЕНИЯ КАТИОНОВ МЕТАЛЛОВ ИЗ ЖИДКОСТИ С ПОМОЩЬЮ СМОЛ, СОДЕРЖАЩИХ ПОЛИАЗАЦИКЛОАЛКАНЫ, ПРИВИТЫЕ НА НОСИТЕЛЕ

Изобретение относится к способу и устройству для удаления катионов металлов, содержащихся в жидкости, в котором указанную жидкость приводят в контакт при температуре выше или равной 60°С с образующей хелаты ионообменной смолой, сформированной из полиазациклоалканов, привитых на носителе, причем до указанного контактирования упомянутую смолу подвергают кондиционированию при значении рН от 4 до 6. Изобретение позволяет эффективно удалять загрязнения из жидкости. 2 н. и 33 з. п. ф-лы, 9 ил., 9 табл.

ГИБРИДНЫЕ ОРГАНО-НЕОРГАНИЧЕСКИЕ ГЕЛИ ДЛЯ ЭКСТРАКЦИИ ХИМИЧЕСКИХ ЭЛЕМЕНТОВ, ТАКИХ КАК ЛАНТАНИДЫ И АКТИНИДЫ, И СПОСОБЫ ПОЛУЧЕНИЯ ЭТИХ ГЕЛЕЙ

Описывается способ экстрагирования присутствующих в водных растворах ионов, относящихся к группе ионов актинидов и/или лантанидов, заключающийся в том, что водный раствор вводят в контакт с гибридным органо-неорганическим гелем, содержащим сетку из неорганических звеньев формулы: где М обозначает Si, Ti, Zr или Al, в которую (сетку) интегрированы органические молекулы, образующие комплексы с экстрагируемыми ионами, причем каждая органическая молекула ковалентно связана с одним или несколькими атомами М сетки, и отделяют гель, связавший ионы. Техническим результатом является органо-неорганический гель, в структуру которого экстрагирующаяся группа интегрируется в процессе приготовления геля. 2 с. и 15 з.п. ф-лы, 4 ил., 2 табл.

СПОСОБ ИЗГОТОВЛЕНИЯ АНИОНООБМЕННЫХ И ХЕЛАТИРУЮЩИХ СМОЛ, ВКЛЮЧАЮЩИХ В СВОЮ СТРУКТУРУ АМИНО-АЛИФАТИЧЕСКИЕ ФУНКЦИОНАЛЬНЫЕ ГРУППИРОВКИ

Настоящее изобретение относится к способу получения анионообменных и хелатирующих смол. Описан способ получения анионообменной или хелатирующей смолы, включающий в себя: i) проведение взаимодействия винилового ароматического полимера с нитросоединением с образованием полимера, содержащего в своей структуре повторяющееся структурное звено, содержащее в своем составе ароматический кольцевой фрагмент, замещенный нитрогруппой, в котором нитросоединение содержит в своей структуре в интервале 1-12 углеродных атомов при условии, что альфа (α) углеродный атом несет, по меньшей мере, один атом водорода и ii) восстановление нитрогруппы с образованием амино-алифатической функциональной группировки. Технический результат – улучшение эффективности способа получения анионообменных или хелатирующих смол. 6 з.п. ф-лы, 3 пр.

НОВЫЕ, ЛЕГИРОВАННЫЕ АЛЮМИНИЕМ, СОДЕРЖАЩИЕ ГРУППЫ ИМИНОДИУКСУСНОЙ КИСЛОТЫ ХЕЛАТООБРАЗУЮЩИЕ СМОЛЫ

СПОСОБ ПОЛУЧЕНИЯ АМИНОМЕТИЛИРОВАННЫХ БИСЕРНЫХ ПОЛИМЕРОВ ИЗ СЛОЖНЫХ N-МЕТИЛФТАЛИМИДОВЫХ-ЭФИРОВ КАРБОНОВЫХ КИСЛОТ

SCAVENGER CARRIER WITH AMINOFUNKTIONALISIERTEN SIDECONSTANT OF KETOESTER OR KETOAMIDGRUPPEN FOR THE DISTANCE OF METALS FROM SOLUTIONS

SOURLY FUNKTIONALISIERTE METAL-ORGANIC STAND MATERIALS

VERFAHREN ZUM REGENERIEREN VON STROMLOS ARBEITENDEN METALLABSCHEIDUNGSBAEDERN

PROCEDURE FOR THE PRODUCTION OF METALLCHELATISIERENDEN AFFINITY LIGAND

PROCEDURE FOR REGENERATING DEAD WORKING METALLABSCHEIDUNGSBAEDERN

IMPROVEMENTS WITH POLYMER PARTICLES

ISOLATION OF ANTISENSE OLIGONUKLEOTIDEN

PROCEDURE FOR THE SEPARATION FROM ISOTOPES

RECUPERATION OF AMMONIAKALI COPPER OF MEANS OF NEW ORGANOGELE.

METHOD FOR THE AMMONIA DISTANCE OF DIVERTING

PP ABSTENTION AND COVALENT TO A CARRIER BOUND LIGANDS, PP CONTAINING RESINS AND PROCEDURE FOR THE DISTANCE OF METALS FROM SOLUTIONS

ON SUBSTRATE POLYAZACYCLOALKANE TRICHLOROETHYLENE, TETRAODER PENTAAZAMAKROZYCLI COMPLEXE GEPROFTE

PROCEDURE FOR THE SEPARATION OF ZINC IONS OF AUTOMATICALLY SEPARATE-CASH COAT COMPOSITIONS

PROCEDURE FOR THE PRODUCTION OF AQUEOUS, ESSENTIALLY METAL ION SUITOR HYDROXYL AMINE SOLUTIONS

SCAVENGER CARRIER WITH AMINOFUNKTIONALISIERTEN SIDECONSTANT OF KETOESTER OR KETOAMIDGRUPPEN FOR THE DISTANCE OF METALS FROM SOLUTIONS

SCAVENGER CARRIER WITH AMINOFUNKTIONALISIERTEN SIDECONSTANT OF KETOESTER OR KETOAMIDGRUPPEN FOR THE DISTANCE OF METALS FROM SOLUTIONS

SCAVENGER CARRIER WITH AMINOFUNKTIONALISIERTEN SIDECONSTANT OF KETOESTER OR KETOAMIDGRUPPEN FOR THE DISTANCE OF METALS FROM SOLUTIONS

SCAVENGER CARRIER WITH AMINOFUNKTIONALISIERTEN SIDECONSTANT OF KETOESTER OR KETOAMIDGRUPPEN FOR THE DISTANCE OF METALS FROM SOLUTIONS

SCAVENGER CARRIER WITH AMINOFUNKTIONALISIERTEN SIDECONSTANT OF KETOESTER OR KETOAMIDGRUPPEN FOR THE DISTANCE OF METALS FROM SOLUTIONS

SCAVENGER CARRIER WITH AMINOFUNKTIONALISIERTEN SIDECONSTANT OF KETOESTER OR KETOAMIDGRUPPEN FOR THE DISTANCE OF METALS FROM SOLUTIONS

SCAVENGER CARRIER WITH AMINOFUNKTIONALISIERTEN SIDECONSTANT OF KETOESTER OR KETOAMIDGRUPPEN FOR THE DISTANCE OF METALS FROM SOLUTIONS

Catalytic Regeneration of Resin for Antimony Removal

In a preferred embodiment, there is provided a process for eluting antimony(V) adsorbed to a cation exchange resin, said process comprising contacting the resin with an iodine compound and a sulfur compound, the sulfur compound comprising one or more of sulfite, bisulfite and metabisulfite, wherein the iodine compound and the sulfur compound are selected to effect reduction of said antimony(V) to formantimony(III). Most preferably, the process further comprises contacting the resin with an acid compound, preferably hydrochloric acid, selected to desorb antimony(III), the sulfur compound comprises sodium bisulfite, and the iodine compound comprises sodium iodide and/or potassium iodide. Ion Exchange Unit 1 + Figure 1 ...

TREATMENT OF LIQUIDS CONTAINING COMPLEXED METALS AND COMPLEXING AGENTS

SULFUR AND NITROGEN-CONTAINING HYDROCARBON COMPOUNDS AND PROCESS USING SAME IN RECOVERING AND CONCENTRATING DESIRED IONS FROM SOLUTIONS THEREOF

SEPARATION OF THORIUM IONS FROM AN INSOLUBLE COMPOSITION

Process for separating multivalent metal ions from autodepos ition compositions

Amine-aldehyde resins and uses thereof in separation processes

Amine-aldehyde resins are disclosed for removing a wide variety of solids and/or ionic species from the liquids in which they are suspended and/or dissolved. These resins are especially useful as froth flotation depressants in the separation of bitumen from sand and/or clay or in the beneficiation of clay (., kaolin clay) from an impure clay-containing ore. The resins are also useful for treating aqueous liquid suspensions to remove solid particulates, as well as for removing metallic ions in the purification of water.

APPARATUS AND PROCESS TO REGENERATE A TRIVALENT CHROMIUM BATH

Isolation of antisense oligonucleotides

Purification of metals

Apparatus and method for ammonia removal from waste streams

TREATING WASTE WATER CONTAINING URANIUM AND FLUORINE

Metal chelating filters and metal chelate filters

COMPLEXING COMPOSITE CAPSULES

Elution of metal ions from chelating resin using amino acid eluant

A method of eluting metal ions from a bed of metal-loaded chelating resin wherein the resin includes a crosslinked styrene-divinylbenzene copolymer matrix with pendent methyleneaminopyridine or phosphonic acid groups and the method includes the step of passing an eluant through the bed to at least partially remove the metal ions from the chelating resin and create a metal-rich eluate, wherein the eluant includes an aqueous solution comprising an amino acid compound having a molecular weight less than 500 Daltons.

Antimicrobial and biologically active polymer composites and related methods, materials and devices

Biologically activated ion-exchange polymer salts are made by exchanging biologically active ionic agents onto ion-exchange polymers. The activated polymers are uniquely surface active and stable to thermal degradation and chemical and other forms of decomposition. The activated ion-exchange polymer salts may be processed and combined with polymer precursors using novel methods and materials to produce stable, biologically activated polymer composites, including antimicrobial and antifouling polymer composites.

Preparation of zeolite molecular sieves using metal chelates

Polymeric membranes and polymer articles having hydrophilic surface and method for their preparation

CHELATE EXCHANGE RESINS FROM PICOLYLAMINES

MACROCYCLIC LIGANDS BONDED TO SAND OR SILICA GEL AND THEIR USE IN SELECTIVELY AND QUANTITATIVELY REMOVING AND CONCENTRATING IONS PRESENT AT LOW CONCENTRATIONS FROM MIXTURES THEREOF WITH OTHER IONS

RECOVERY AND SEPARATION OF PLATINUM GROUP METALS AND GOLD

POLYAMIDE-CONTAINING LIGANDS COVALENTLY BONDED TO SUPPORTS, POLYAMIDE-CONTAINING RESINS, AND METHODS FOR REMOVING METALS FROM SOLUTIONS

Compositions and methods for selectively binding metal ions from source solutions are disclosed. The compositions include 1) polyamide-containing ligands covalently bonded to a particulate solid support, and 2) polyamide- containing polymeric resins. In the case of the ligand bonded to the solid support, the ligand is bounded or tethered to the solid support through a hydrophilic spacer such that the overall formula is SS-A-X-L. In this formula, SS is a particulate solid support such as silica or a polymeric bead, A is a covalent linkage mechanism, X is a hydrophilic spacer grouping, and L is a polyamide-containing ligand having three or more amide groups and two or more amine nitrogens separated by at least two carbons with the proviso that when SS is a particulate organic polymer, A-X may be combined as a single covalent linkage. With respect to the polyamide ligand-containing polymeric resin, this composition is a reaction product of a hydroxymethylated polyamide ligand and a polymerization ...

ISOLATION OF ANTISENSE OLIGONUCLEOTIDES

The present invention relates to a method of isolating fully thioated single stranded antisense oligonucleotides from a biological solution, which method comprises the steps of contacting the biological solution with an immobilised metal ion adsorption chromatography (IMAC) resin to adsorb the antisense oligonucleotides to said resin and subsequently contacting the resin with an eluent under conditions that provide desorption of the antisense oligonucleotides from said resin, wherein the fully thioated antisense oligonucleotides are separated from incorrectly thioated antisense oligonucleotides in said solution. The invention also relates to the use of an immobilised metal ion adsorption chromatography (IMAC) resin for isolation of fully thioated single stranded antisense oligonucleotides from a biological solution.

TREATMENT OF LIQUIDS CONTAINING COMPLEXED HEAVY METALS AND COMPLEXING AGENTS

... . - Methods are provided for separating by-products from alkanolamine complexing agents and heavy metals complexed with alkanolamines, and for the waste-treating of solutions containing such complexed heavy metals and complexing agents. Illustratively, the pH of an electroless metal deposition bath or bath effluent which contains an alkanolamine complexing agent and an alkanolaminecomplexed heavy metal is adjusted to render the complexing agent and complexed heavy metal extractable by an ion exchange medium, the pH-adjusted bath liquid is contacted with an ionexchange medium capable of extracting the complexed heavy metal and complexing agent, the contacted bath liquid, which contains by-products and is substantially free of the complexed heavy metal and the complexing agent is removed from the ion exchange medium and the complexed heavy metal and complexing agent are recovered from the exchange medium for further use in electroless metal deposition baths.

PROCESS AND ION-EXCHANGE MATERIALS FOR REMOVAL OF AMMONIA FROM AQUEOUS STREAMS

PARTICULATE MATERIAL SUITABLE FOR SELECTIVELY SEPARATING METAL CATIONS FROM AQUEOUS SOLUTIONS, PROCESS FOR ITS PRODUCTION, AND USE THEREOF

The invention relates to particulate material for separation of metal cations from aqueous solutions. These particles contain complexing agents dispersed in a continuous aqueous phase which is embedded in or is a constituent of a hydrophilic gel and/or is encapsulated by a water-insoluble, ion-permeable shell.

ARSENIC REMOVAL

CHELATE EXCHANGE RESINS FROM AMINOPYRIDINES

PROCESS FOR TREATING MERCURY-CONTAINING SLUDGE TO RECOVER MERCURY THEREFROM

FACILITY AND METHOD FOR SEPARATING AT LEAST ONE IONIC SPECIES FROM A SOLUTION COMPRISING AT LEAST SAID IONIC SPECIES AND LITHIUM

L'installation de séparation d'une espèce cationique multivalente, à partir d'une solution comprenant cette espèce cationique multivalente et du Lithium, comprend un dispositif de capture (3) doté d'une entrée (2) et d'une sortie (4). Le dispositif de capture (3) comprend, entre l'entrée (2) et la sortie (4), un produit microfibre (12) avec une affinité supérieure aux cations multivalents qu'aux cations monovalents, L'installation comprend un système de circulation (5) adapté pour faire circuler la solution de l'entrée (2) vers la sortie (4) en contact avec le produit microfibre (21), le produit microfibre (21) captant ladite espèce cationique multivalente.

RESIN BEADS AND USE IN PROCESSING OF AQUEOUS SOLUTIONS

A method of processing an aqueous solution, wherein the aqueous solution comprises one or more dissolved sugar, one or more dissolved sugar alcohol, or a mixture thereof, wherein the method comprises bringing the aqueous solution into contact with a collection of resin beads, wherein the resin beads comprisefunctional groups of structure (S1).

CHELATE RESIN

IMMOBILISED EXTRACTANTS

A METHOD OF GENERATING METAL CHELATING AFFINITY LIGANDS

... ²²²The present invention relates to a method of generating polydentate metal ²chelating affinity ligands, which method comprises the steps of providing a ²cyclic scaffold comprising a carbonyl, an adjacent sulphur and a nucleophile; ²providing a polydentate metal chelating affinity ligand arm on each scaffold ²by derivatisation of said nucleophile; ring-opening of the scaffold by adding ²a reagent that adds more metal chelating affinity ligand arm(s) to the ²scaffold; and, if required, deprotecting the functionalities of the ligand ²arm(s) so provided. In the most preferred embodiment of the method, the ring-²opening and the deprotection steps are performed in a single step.² ...

METHOD FOR REMOVING IODIDE COMPOUND FROM ORGANIC ACID

An iodide compound is adsorbed and removed from an organic acid containing the iodide compound as an impurity by passing the organic acid through a packed bed of a cation-exchange resin having silver ion carried thereon at 50 C or lower. The cation-exchange resin is a macroporous-type resin with an average particle size of 0.3 to 0.6 mm and an average pore size of 15 to 28 nm, and silver ion substitutes for 40 to 60% of the active site.

DOPANTS FOR THE DETECTION OF NITRATES

The present disclosure relates to an ion exchange process, as well as a process and system for detecting nitrates, which employ a class of dopants comprising at least two functional groups capable of simultaneous convergent hydrogen bonding with a nitrate ion. In an aspect, the present disclosure provides an ion exchange process for forming a negatively charged nitrate-dopant ion analyte for analysis by a spectrometry analysis instrument, comprising: providing a gas comprising a dopant in both neutral and ionized forms; contacting a nitrate-containing sample with the gas comprising the dopant and thereby desorbing a nitrate ion from the sample to form a negatively charged nitrate- dopant ion analyte and replacing the desorbed nitrate ion with a negatively charged ionized dopant molecule; wherein the dopant is an organic compound comprising two or more carbon atoms and two or more functional groups capable of simultaneous convergent hydrogen bonding with a nitrate ion; or the dopant is an ...

ION EXCHANGE RESIN AND METHOD FOR ADSORBING AND SEPARATING METAL

Provided is a system for efficiently recovering trace metal from a large amount of a raw material, such as when trace metal is recovered from nickel oxide ore. This ion exchange resin has, on a carrier, an amide derivative represented by the following general formula. In the formula, R1 and R2 represent the same or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 represents a hydrogen atom or an arbitrary group, other than an amino group, bonded to a carbon as an amino acid. The amide derivative is preferably a glycineamide derivative. The carrier preferably includes a primary amine and/or a secondary amine.

METHOD FOR REMOVING ORGANIC CONTAMINANTS FROM RESINS

The disclosure describes a novel method for operating a resin treatment system and a novel organic polisher. The method for operating the resin treatment system is efficient and cost effective.

PROCESS FOR THE REMOVAL OF CORROSION METAL CONTAMINANTS FROM LIQUID COMPOSITIONS

PROCESS FOR THE REMOVAL OF CORROSION METAL CONTAMINANTS FROM LIQUID COMPOSITIONS Corrosion metal contaminants are removed from a liquid composition comprising a carboxylic acid and/or an anhydride thereof, a rhodium carbonylation catalyst, and a carbonylation catalyst co-promoter by using a chelating resin selective for the removal of corrosion metals rather than carbonylation catalyst and co-promoter.

POLYTETRAALKYLAMMONIUM AND POLYTRIALKYAMINE CONTAINING LIGANDS BONDED TO INORGANIC SUPPORTS AND PROCESSES OF USING THE SAME FOR REMOVING AND CONCENTRATING DESIRED IONS FROM SOLUTIONS

A method for the removal and concentration of desired ions from a source solution which may contain larger concentrations of other ions including H+ comprises bringing the source solution into contact with a compound comprising a polytetraalkylammonium and/or polytrialkylamine containing ligand covalently bonded through an organic spacer silicon grouping to a solid inorganic support. The polytetraalkylammonium and/or polytrialkylamine portion(s) of the compound has an affinity for the desired ions to forma complex thereby removing the desired ions from the source solution. The desired ions are removed from the compound by contacting the compound with a much smaller volume of a receiving solution having a greater affinity for the desired ions than does the polytetraalkylammonium and/or polytrialkylamino ligand portion of the compound. The concentrated ions thus removed may be recovered by known methods. The process is useful in removing desired or unwanted ions from water streams and in ...

RESINS HAVING IMPROVED EXCHANGE KINETICS

Disclosed are novel ion-exchange and chelateexchange resins having improved exchange kinetics for separating chemical species from liquids. The resins are prepared from copolymer beads consisting of a monovinyl aromatic monomer and a cross linking monomer. The copolymer beads are functionalized such that weakbase exchange moieties are substituted at haloalkylated sites which are most accessible to diffusion into the beads, while hydrophilic, strong-base exchange moieties are substituted at haloalkylated sites which are least accessible to diffusion. The resins have improved exchange kinetics due to shortened diffusion path lengths for the chemical species being separated and improved diffusion into the resin beads due to the hydrophilic, strong-base exchange moieties. 37,506-F ...

TREATING RHODIUM, IRIDIUM AND RUTHENIUM SOLUTIONS

... 2103144 9221419 PCTABS00017 A method for the removal, separation, and concentration of Rh, Ir, and/or Ru from a source solution which may contain larger concentrations of other ions including H+ comprises bringing the source solution into contact with a compound comprising a polyalkylene-polyamine-containing ligand covalently bonded through an organic spacer silicon grouping to a solid inorganic support. The ligand portion(s) of the compound has affinity for complexed anionic species of Rh, Ir, and/or Ru. The Rh and/or Ru are first selectively removed from the compound through contact with a much smaller volume of a first receiving solution. The Ir is then removed from the compound through contact with a much smaller volume of a second receiving solution having a greater affinity for the Ir than the liquid portion of the compound or having a greater affinity for the ligand portion of the compound than the Ir species. The process is useful in the recovery and refining of the valuable Rh ...

IMMOBILISED BRANCHED POLYALKYLENEIMINES

A solid phase ligand comprising branched polyalkyleneimine covalently bound to an inorganic support by a linking group.

METHOD FOR ELUTING ANTIMONY ADSORBED ON CHELATING RESIN

In a method for recovering antimony from the electrolyte of copper electro-refining process, the antimony is adsorbed on the chelating resin and is then eluted by acid. The eluate is then neutralized to recover antimony. In a conventional method, a large amount of acid and alkali is used. In the inventive eluting method, the antimony concentration in the acidic eluting solution is adjusted to 4g/L or more in the first step and 3g/L or less in the second step.

SYSTEM FOR EXTRACTING SOLUBLE HEAVY METALS FROM LIQUID SOLUTIONS

A process for removing ions of dissolved heavy metals and complex heavy metals comprises providing a treatment zone in which is contained an extraction material having an activated surface that has an affinity for heavy metal ions and complex heavy metal ions. The activated surface is the reaction product of a polyamine with a covalently anchored trifunctional hydrocarbylsilyl that yields non-crosslinked amino groups to which functional chelator groups can be covalently attached. The activated surface of the extraction material is formed by first hydrating the extraction material surface and then silanizing the hydrated surface with a short chain trifunctional silane having a hydrocarbon substituent containing 1-6 carbon atoms and a terminal leaving group, and then reacting a polyamine with the hydrocarbylsilyl from the silanization of the hydrated surface so as to form an aminohydrocarbyl polymer covalently bound to the extraction material surface.

Procédé pour la préparation d'amidoximes polymères et de ses dérivés

Procédé pour la préparation de produits polymères ayant une affinité augmentée vis-à-vis des colorants

IONISCH MODIFICATION OF CELLULOSEHALTIGES ADSORPTION MATERIAL.

PROCEDURE FOR PREPARING WATER, IN PARTICULAR AQUARIUM WATER.

BASIC SUBSTITUTED ANTHRACHINONE AND DIHYDROANTHRACHINONE, YOUR PRODUCTION AND PHARMACEUTICAL PREPARATIONS.

PROCEDURE FOR THE RECOVERY OF ALKANOLAMINKOMPLEXBILDNERN AND ALKANOLAMINSCHWERMETALLKOMPLEXEN FROM LOESUNGEN.

Procedure for determining the concentration of komplexierten metal ions in a solution.

ХЕЛАТООБРАЗУЮЩЕЕ СОЕДИНЕНИЕ И СПОСОБ ИСПОЛЬЗОВАНИЯ ПОЛИ(2-ОКТАДЕЦИЛБУТАНДИОАТА) И СООТВЕТСТВУЮЩЕЙ КИСЛОТЫ, ПОЛИ(2-ОКТАДЕЦИЛБУТАНДИОАТ)

Хелатообразователь, содержащий основную цепь полимера. Основная цепь полимера содержит множество атомов углерода. На одно повторяющееся звено имеются две карбоксилатные группы или группы карбоновой кислоты, присоединенные к раздельным атомам углерода основной цепи.

применение резорцин[4]арена для абсорбции одного или большего количества оксидов азота, полученные при этом комплексы и их применение, способы абсорбции и соответствующие изделия

В заявке описано применение резорцин[4]аренов для абсорбции одного или большего количества оксидов азота из среды, содержащей оксид азота. В заявке также описаны комплексы NO+ с резорцин[4]аренами и фильтрующие элементы, включающие один или большее количество резорцин[4]аренов.

COMPOSITE SOLID MATERIAL FIXING MINERAL POLLUTANTS, METHOD FOR PREPARING THEREOF AND METHOD OF FIXING MINERAL POLLUTANTS BY MEANS OF SAID MATERIAL

INORGANIC-ORGANIC HYBRID GELS FOR EXTRACTING SPECIES SUCH AS LANTHANIDES AND ACTINIDES, AND THEIR PREPARATION

METHOD FOR PREPARING A COMPOSITE SOLID MATERIAL BASED ON METAL HEXACYANOFERRATE AND METHOD FOR FIXING MINERAL POLLUTANTS USING THIS MATERIAL

ANHYDROUS, AMORPHOUS AND POROUS CARBONATES MAGNESIUM AND METHODS OF THEIR SYNTHESIS

Polycarbonate resin, and method of use of, poly (2-octadecyl-butanedioic acid) and the salts and esters thereof

PROCEDE DE SEPARATION SELECTIVE ET DE CONCENTRATION DU GALLIUM OU DE L'INDIUM OU DES DEUX, DE SOLUTIONS EN CONTENANT A DE FAIBLES TAUX MAIS CONTENANT DES TAUX ELEVES D'IONS D'AUTRES METAUX

L'INVENTION CONCERNE UN PROCEDE DE SEPARATION SELECTIVE ET DE CONCENTRATION DE GALLIUM ETOU D'INDIUM D'UNE SOLUTION LES CONTENANT A DE FAIBLES CONCENTRATIONS MAIS CONTENANT DES IONS D'AUTRES METAUX A DE RELATIVEMENT FORTES CONCENTRATIONS. SELON L'INVENTION, ON FAIT PASSER LA SOLUTION A TRAVERS UN LIT DE RESINE ECHANGEUSE D'IONS COMPLEXANTE AYANT UN GROUPE ACIDE AMINO CARBOXYLIQUE, ON DESORBE LES IONS DE METAL DE LA RESINE PAR ELUTION AVEC UN ACIDE MINERAL, ON AJUSTE LE PH DE L'ELUAT ENTRE 1,0 ET 4,0, ON FAIT PASSER L'ELUAT AJUSTE A TRAVERS UN LIT D'UNE RESINE ECHANGEUSE D'IONS COMPLEXANTE AYANT UN GROUPE AMINO CARBOXYLIQUE, ET ON ELUE LES MATERIAUX SUR LA RESINE AVEC UN ACIDE MINERAL POUR AINSI RECUPERER LE GALLIUM ETOU L'INDIUM; LE DESSIN JOINT MONTRE LA CONCENTRATION DE GALLIUM OU D'INDIUM AINSI QUE LA CONCENTRATION DE ZN, FE OU AL EN FONCTION DU VOLUME DE LA SOLUTION D'ALIMENTATION. L'INVENTION S'APPLIQUE NOTAMMENT A LA RECUPERATION D'INDIUM ET DE GALLIUM DANS DES LIMONS, BOUES OU LIQUEURS ...

SEQUESTERING RESIN, SA PREPARATION AND ITS USES

PROCEEDED OF SEPARATION OF COMPOSE OF IRON OF THE CURRENTS OF MANUFACTURE OF COMPOSE ORGANIC

LEUCO-ANTHRAQUINONES ET LEURS FORMES TAUTOMERES, LEURS PROCEDES DE PREPARATION ET LEUR UTILISATION POUR LUTTER CONTRE LES MALADIES CANCEREUSES

L'invention concerne des nouveaux composés chimiques, répondant à la formule générale suivante : ...

Improvements with the separation of mineral ions by polymers with multiple functions

New chelating polyester

CHELATING STRUCTURE, DEVICE AND PROCESS OF LIQUID WASTE PROCESSING

La présente invention se rapporte à une structure complexante, à un procédé de traitement d'un effluent liquide utilisant ladite structure complexante, et à un dispositif pour la mise en oeuvre du procédé de l'invention. La structure comprend un film d'un polymère ou d'un copolymère organique électriquement neutre. En outre, la présente invention se rapporte à un dispositif et à un procédé de traitement d'un effluent utilisant ladite structure.

A METHOD FOR ELIMINATING FROM the IONS OF Heavy metals From WATER POLLUEES AND POROUS MEMBRANE USABLE For this purpose

METAL REMOVAL

PROCESS OF TREATMENT Of WATER, IN PARTICULAR Of WATER FOR AQUARIUMS

Copper separation - from solns contg iron cobalt,nickel and/or manganese, using ion exchange resins

PROCEDE POUR REDUIRE LA TENEUR EN NICKEL D'UNE SOLUTION AQUEUSE CONTENANT DES IONS DE COBALT (II)

PROCEDE POUR REDUIRE LA TENEUR EN NICKEL D'UNE SOLUTION AQUEUSE QUI CONTIENT AU MOINS 45 GRAMMES PAR LITRE D'IONS DE COBALTII. LE PROCEDE COMPORTE LA MISE EN CONTACT DE LA SOLUTION AVEC UNE RESINE ECHANGEUSE D'IONS QUI A DES GROUPES FONCTIONNELS BIS-(2-PICOLYL)AMINE A UN PH COMPRIS ENTRE 2 ET 6,3 ET A UNE TEMPERATURE COMPRISE ENTRE 20 ET 60C.

Pretreatment method for chelate resin having pyridine ring used for collecting catalyst in aromatic carboxylic acid production process

In pretreating a pyridine ring-containing chelate resin which is used in the step for adsorption and collection of a heavy metal ion and a bromide ion derived from a catalyst from the oxidation reaction mother liquid in the process of producing an aromatic carboxylic acid, there may occur phenomena such as swelling of the resin, heat generation of the resin, and air bubbles generation, thereby causing fracture and deterioration of the resin. As a first treatment, Br − conversion, under a certain condition, of a pyridine ring-containing chelate resin with an aqueous solution of hydrobromic acid is performed, and then as a second treatment, replacement with acetic acid solvent is performed, thereby making it possible to prevent fracture and deterioration of the resin.

Methylene aminoethyl sulfonic acid chelating resins

The present invention relates to chelating resins containing methyleneaminoethylsulfonic acid groups, a process for producing them and also their use for removing heavy metals or metals of value from aqueous solutions having a pH of <4, preferably from process water in or from the electronics industry, the electroplating industry or the mining industry.

Purification of Metals

A solid composition comprises: MnO 2 ; and a compound represented by the general formula (I) wherein: R is a polymer; each Y is independently a hydrogen or a negative charge; Z is either hydrogen or is not present; each n is independently 1, 2, 3, 4, 5 or 6; wherein the MnO 2 is bound to the compound of formula (I) so as to coat the surface thereof. Such a composition may be used for the separation of polyvalent metal species, such as Mo, from one or more accompanying impurities.

Methods and materials for removing metals in block copolymers

The present invention relates to a method for treating a block copolymer solution, wherein the method comprises: providing a solution comprising a block copolymer in a non aqueous solvent; and, treating the solution to remove metals using an ion exchange resin. The invention also relates to a method of forming patterns using the treated block copolymer.

Complex and uses thereof

The present invention provides a complex of a metal reducing substance and a culture medium component, which is produced in the culturing process of reducing bacteria and the use thereof. The complex of the present invention is a complex produced in the culturing process of reducing bacteria and a compound of a metal reducing substance and a culture medium component. The complex is an adsorbent for quickly and efficiently adsorbing ionic substances present in a solution, and also functions as a reducing agent for reducing specific precious metal ions or platinum-group metal ions.

METHOD FOR CONDITIONING ION EXCHANGE RESINS AND APPARATUS FOR CARRYING OUT THE METHOD

A method for conditioning of spent ion exchange resins from nuclear facilities comprises the steps of: mixing the spent ion exchange resins with water to form a reaction mixture; setting and controlling the pH of the reaction mixture in a range from 1.0 to 3.5, preferably in a range from 2.0 to 3.0; adding an oxidant to the reaction mixture, with the temperature of the reaction mixture maintained at 90 ° ° C. or less so that the spent ion exchange resin and the oxidant react with each other to form an aqueous reaction solution comprising the organic reaction products of the spent ion exchange resin; and electrochemically oxidizing the organic reaction products, wherein carbon dioxide is produced and a carbon-depleted aqueous reaction solution having a TOC (total organic carbon) value of less than 50 ppm is obtained. Furthermore, an apparatus for the conditioning of spent ion exchange resins from nuclear facilities is described. 1. A method for conditioning of spent ion exchange resins from nuclear facilities , comprising the steps of:mixing the spent ion exchange resins with water to form a reaction mixture;{'b': 3', '5, 'setting and monitoring the pH of the reaction mixture in a range from 1.0 to .;'}adding an oxidant to the reaction mixture, with the temperature of the reaction mixture maintained at 90° C. or less, so that the spent ion exchange resin and the oxidant react with each other to form an aqueous reaction solution comprising organic reaction products of the spent ion exchange resin; andelectrochemically oxidizing the organic reaction products in the reaction solution by means of a boron-doped diamond electrode, wherein carbon dioxide is produced and a carbon-depleted aqueous reaction solution having a TOC (total organic carbon) value of less than 50 ppm is obtained.2. The method according to claim 1 , characterized in that the ion exchange resins contain organic complexing agents.3. The method according to claim 1 , characterized in that the reaction ...

SOLID-PHASE CHELATOR MATERIAL, METHOD FOR PRODUCING THEREOF AND USE THEREOF FOR THE PURIFICATION OF PROTEINS

A solid-phase chelator material usable for the purification of proteins. The solid-phase chelator material comprises a solid phase, polyamine groups bound to the solid phase and chelating groups bound to the polyamine groups. At least a part of the polyamine groups is connected with at least two chelating groups per polyamine group. Each chelating group comprises one or several aminopolycarboxylic acid groups (APA groups), with the proviso that the number of APA groups per polyamine group connected with at least two cheating groups is at least three. 1. A solid-phase chelator material comprising a solid phase , polyamine groups bound to the solid phase and chelating groups bound to the polyamine groups , wherein at least a part of the polyamine groups are connected with at least two chelating groups per polyamine group and wherein each chelating group comprises one or several aminopolycarboxylic acid groups (APA groups) , with the proviso that the number of APA groups per polyamine group connected with at least two chelating groups is at least three.2. The solid-phase chelator material according to claim 1 , wherein the chelating groups are selected from the group consisting of individual APA groups claim 1 , linear chelator chains formed by two or more APA groups which are connected with each other via bifunctional linker moieties K claim 1 , branched chelator chains formed by three or more APA groups connected with each other via trifunctional linker moieties L claim 1 , and mixed chelator chains formed by four or more APA groups connected with each other via at least one bifunctional linker moiety K and at least one trifunctional linker moiety L.3. The solid-phase chelator material according to claim 1 , wherein the number of chelating groups bound to a polyamine group is at least three claim 1 , preferably at least four claim 1 , and/or wherein the number of APAs which is coupled to a polyamine group connected with at least two chelating groups is in the range ...

PRECURSOR POLYELECTROLYTE COMPLEXES COMPOSITIONS

The invention relates to compositions and methods of treatment employing compositions comprising polyelectrolyte complexes. The compositions include a water-soluble first polyelectrolyte bearing a net cationic charge or capable of developing a net cationic charge and a water-soluble second polyelectrolyte bearing a net anionic charge or capable of developing a net anionic charge. The total polyelectrolyte concentration of the first solution is at least 110 millimolar. The composition is free of coacervates, precipitates, latex particles, synthetic block copolymers, silicone copolymers, cross-linked poly(acrylic) and cross-linked water-soluble polyelectrolyte. The composition may be a concentrate, to be diluted prior to use to treat a surface. 1. A concentrate composition comprising:(a) a water-soluble first polyelectrolyte bearing a net cationic charge or capable of developing a net cationic charge wherein said first polyelectrolyte is a poly(diallyldimethyl ammonium chloride) homopolymer;(b) about 0.001% to 0.19% by weight of a water-soluble second polyelectrolyte bearing a net anionic charge or capable of developing a net anionic charge wherein said second polyelectrolyte comprises at least one of poly(acrylic acid), a copolymer of acrylic acid and maleic acid, a copolymer of acrylic acid and styrene, a copolymer of styrene sulfonic acid and maleic acid, or mixtures thereof;(c) wherein the composition is free of precipitates, synthetic block copolymers, silicone copolymers, cross-linked poly(acrylic) and cross-linked water-soluble polyelectrolyte;(d) wherein the composition has a viscosity of less than about 1,000 centipoise;(e) wherein upon dilution, the concentrate composition forms a polyelectrolyte complex from the first polyelectrolyte and the second polyelectrolyte; and(f) wherein R, the molar ratio of charged groups present on said first polyelectrolyte to oppositely charged groups present on said second polyelectrolyte, is from about 0.1 to 20.2. The ...

Processes and systems for producing and/or purifying gallium-68

The present disclosure relates processes and systems for producing and/or purifying 68Ga from an irradiated substrate of 68Zn. In some embodiments, the process rely on the use two cation-exchange chromatography columns to separate 68Ga from 68Zn and other radionuclides and metallic impurities. The process achieves a high overall yield of 68Ga and a high effective molar activity while being implementable in a time compatible with the short half-life of 68Ga. In additional embodiments, the process is implemented by an automated system.

DESALINATION OF WATER USING A COMPLEXING AGENT ATTACHED TO A MAGNETIC NANOPARTICLE

There is disclosed, a desalination apparatus making use of a particles including covalently bonded functionalized magnetic nanoparticles coupled to a complexing agent. For example, the complexing agent may include a crown ether. The particles are optionally used for removing salt from water, for example sea water. The apparatus optionally includes a magnet for magnetic filtering, concentrating and/or removing the particles and/or contaminant (e.g. salt). In some embodiments, the salt is then separated back from the particles using UV light. The remaining unclarified water may be washed out with the contaminant and/or used for salt production and/or disposed of (e.g. dumped back to the sea). Optionally, the particles are regenerated. For example, the regenerated particulars may be reused for further desalination steps (e.g. further salt removal from the clarified water) to clarify new input water. 1. A system for purifying water comprising:complexing units including each of said complexing units including a complexing site configured to bind a contaminant a reactor configured for mixing water containing said contaminant with said complexing units a concentrator configured for drawing said complexing units to a release area said release area selected from inside of said reactor and in communication with said reactor;an energy source configured to direct energy to said release area causing said complexing sites release a portion of said contaminant.2. The system of claim 1 , wherein said concentrator includes a magnet.3. The system of claim 2 , wherein said magnet is movable between a location near said release site for concentrating said particles and a location far from said release site for freeing said particles.4. The system of claim 1 , wherein said energy source is configured to direct light to said release area.5. The system of claim 1 , wherein said energy source includes at least one of a source of ultra violet light and a means to direct sunlight to said ...

ANHYDROUS, AMORPHOUS AND POROUS MAGNESIUM CARBONATES AND METHODS OF PRODUCTION THEREOF

An X-ray amorphous magnesium carbonate is disclosed that is characterized by a cumulative pore volume of pores with a diameter smaller than 10 nm of at least 0.018 cm/g, and a specific surface areas of at least 60 m/g. The X-ray amorphous magnesium carbonate is produced by reacting an inorganic magnesium compound with alcohol in a COatmosphere. The X-ray amorphous magnesium carbonate can be a powder or a pellet and acts as a desiccant in, for example, production of food, chemicals or pharmaceuticals. 1. A mesoporous composite carbonate material comprising:X-ray amorphous and anhydrous magnesium carbonate; anda second component,wherein the second component is a salt, a hydroxide, an oxide, or a combination thereof,{'sup': '3', 'wherein the mesoporous composite material has an incremental pore volume in cm/g that has a maximum value for pores with a diameter of 10 nm or less, and'}wherein the incremental pore volume is measured by nitrogen sorption.2. The mesoporous composite carbonate material according to claim 1 , wherein the second component is calcium carbonate.3. The mesoporous composite carbonate material according to claim 2 , wherein the mesoporous composite carbon material with pores with a diameter of 10 nm or less has a cumulative pore volume of at least 0.2 cm/g claim 2 , and wherein the cumulative pore volume is measured by nitrogen sorption.4. The mesoporous composite carbonate material according to claim 2 , wherein the mesoporous composite carbonate material is characterized by a BET specific surface area obtained from Nsorption isotherms of between 60 m/g and 1500 m/g.5. The mesoporous composite carbonate material according to claim 4 , wherein the BET specific surface area is between 100 m/g and 1500 m/g.6. The mesoporous composite carbonate material according to claim 5 , wherein the BET specific surface area is between 240 m/g and 1500 m/g.7. The mesoporous composite carbonate material according to claim 6 , wherein the BET specific surface area ...

METHOD FOR LIQUID-TO-SOLID PHASE SEPARATION OF URANIUM AND URANYL CONTAMINANT FROM VARIOUS SOLUTIONS

A method for separating metal ions from a liquid includes a step of providing a solution having metal-containing ions and associated negative counter ions in a liquid. The metal-containing ions are contacted with a dendrimer to form solid particles of metal-containing ion-dendrimer complexes. The solid particles of metal-containing ion-dendrimer complexes are separated from the solution. 1. A method for separating metal ions from a liquid , the method comprising:providing a solution having metal-containing ions and associated negative counterions;contacting the metal-containing ions with a dendrimer to form solid particles of metal-containing ion-dendrimer complexes; andseparating the solid particles of metal-containing ion-dendrimer complexes from the solution.2. The method of claim 1 , wherein metal-containing ion-dendrimer complexes precipitate from the solution.3. The method of claim 2 , a molar ratio of metal ions to dendrimer is greater than 0.2.4. The method of claim 2 , a precipitate has an average particle size greater than 0.1 microns.5. The method of further comprising recovering a metal or metal-containing compounds from the solid particles of metal-containing ion-dendrimer complexes.6. The method of wherein the dendrimer is composed of a branched carbon-chain scaffold with functional groups at regular intervals.7. The method of wherein the dendrimer is composed of a Calkyl-diamine core and amidoamine repeating branches.8. The method of wherein the Calkyl-diamine core is selected from the group consisting of ethylenediamine claim 7 , 1 claim 7 ,2-diaminododecane claim 7 , 1 claim 7 ,4-diaminobutane claim 7 , cystamine claim 7 , 1 claim 7 ,6-diaminohexane claim 7 , and combinations thereof.9. The method of wherein the dendrimer is composed of a PAMAM.10. The method of wherein the dendrimer is a PAMAM dendrimer selected from the group consisting of PAMAM generation 1 dendrimers claim 1 , PAMAM generation 2 dendrimers claim 1 , PAMAM generation 3 dendrimers ...

Reaction method for reacting reaction object with liquid containing the reaction object being in contact with granular porous body

A method for reacting a reaction object with a liquid containing the reaction object in contact with a granular porous body. The upper limit D (mm) of the particle diameter of the granular porous body is determined from D=0.556×LN (T)+0.166 in a column flow method in non-circulation type, and determined from D=0.0315×T+0.470 in the column flow method in a circulation type and a shaking method. The granular porous body includes a skeleton body including an inorganic compound having a three-dimensional continuous network structure, and has a two-step hierarchical porous structure including through-holes formed in voids in the skeleton body, and pores extending from a surface to an inside of the skeleton body and dispersed on the surface. A functional group having affinity with the metal ion is chemically modified on a surface of the granular porous body.

METHOD FOR PRODUCING PURIFIED AQUEOUS SOLUTION OF SILICIC ACID

There is provided a method for obtaining a purified aqueous solution of silicic acid containing less metal impurities such as Cu and Ni using water glass as a raw material with less number of purification steps than that in conventional methods without using any unnecessary additives. The method for producing a purified aqueous solution of silicic acid, the method comprising the steps of: 1. A method for producing a purified aqueous solution of silicic acid ,the method comprising the steps of:(a) passing an aqueous solution of alkaline silicate having a silica concentration of 0.5% by mass or more and 10% by mass or less through a column filled with a polyamine-, iminodiacetic acid-, or aminophosphoric acid-type chelating resin; and(b) passing the aqueous solution passed in the step (a) through a column filled with a hydrogen-type cation exchange resin.2. The method according to claim 1 , wherein the aqueous solution is passed at a space velocity of 0.1 or more and 15 or less in the step (a) and the step (b). The present invention relates to a method for producing a purified aqueous solution of silicic acid as a raw material for producing high-purity colloidal silica.High-purity colloidal silica has been used for various applications such as a polish composition, a catalyst carrier, and a filler for resins. There are conventionally known methods, such as a method for producing the high-purity colloidal silica by a gas phase reaction using silicon tetrachloride as a raw material, and a method for producing the high-purity colloidal silica by a wet reaction using silicic acid ester as a raw material. Both the methods use an expensive silica source, which causes high producing cost.Examples of a method for inexpensively producing the high-purity colloidal silica include a method for removing metal impurities such as Cu and Ni for purification in a step of obtaining an aqueous solution of silicic acid using water glass as a raw material. In recent years, a method for ...

Processes for the recovery of uranium from wet-process phosphoric acid using dual or single cycle continuous ion exchange approaches

In alternative embodiments, the invention provides processes and methods for the recovery, removal or extracting of, and subsequent purification of uranium from a wet-process phosphoric acid using a continuous ion exchange processing approach, where the uranium is recovered from a phosphoric acid, or a phos-acid feedstock using either a dual or a single stage extraction methodology. In both cases an intermediate ammonium uranyl-tricarbonate solution is formed. In alternative embodiments, in the dual cycle approach, this solution is contacted in a second continuous ion exchange system with a strong anion exchange resin then subsequently recovered as an acidic uranyl solution that is further treated to produce an intermediate uranyl peroxide compound which is ultimately calcined to produce the final uranium oxide product. In alternative embodiments, in the single cycle case, the intermediate ammonium uranyl-tricarbonate solution is evaporated to decompose the ammonium carbonate and produce an intermediate uranium carbonate/oxide solid material. These solids are digested in an acid medium, and then processed in the same manner as the secondary regeneration solution from the dual cycle process to produce an intermediate uranyl peroxide that is calcined to produce a final uranium oxide product.

POLYMERIC ENERGY STORAGE MATERIALS

Compositions, coatings, and energy storage fabrications made of support polymers or active waxes in a grafted matrix to an amorphous wax and at least one functional compound and their methods of preparation are presented. Amorphous waxes are typified by paraffin waxes. Functional compounds include various fatty alcohols, fatty acids, ester, amines, and amidoalkylamines. Sulfonated and oxidized ion exchange resins may be grafted to the matrix. The compositions are capable of storing or releasing energy upon a physical phase change transition. 1. A composition comprising at least one support polymer grafted to at least one amorphous wax and further grafted to at least one functional compound having a phase change active group , wherein the composition is a modified wax capable of storing or releasing energy upon a physical phase change transition , wherein about 1% to about 70% by weight of the at least one amorphous wax is covalently bound therein , and about 1% to about 70% by weight of the at least one functional compound is covalently bound therein.2. (canceled)3. The composition of claim 1 , wherein the physical phase change transition occurs at a temperature of about 20° C. to about 60° C.45-. (canceled)6. The composition of claim 1 , wherein the at least one functional compound is a fatty alcohol claim 1 , unsaturated fatty alcohol claim 1 , fatty acid claim 1 , unsaturated fatty acid claim 1 , alkyl fatty ester claim 1 , alkyl unsaturated fatty ester claim 1 , fatty amine claim 1 , unsaturated fatty amine claim 1 , fatty amidoalkylamine claim 1 , unsaturated fatty amidoalkylamine claim 1 , or combinations thereof.7. The composition of claim 1 , wherein the at least one functional compound is (C-C)alkyl-COR claim 1 , (C-C)alkenyl-COR claim 1 , (C-C)alkyl(COOR)(COOR′) claim 1 , (C-C)alkenyl(COOR)(COOR′) claim 1 , and R and R′ are independently hydrogen claim 1 , (C-C)alkyl claim 1 , or a glyceride.8. The composition of claim 1 , wherein the at least one ...

PREPARATION OF METALLOCENE CONTAINING CATIONIC POLYMERS FOR ANION EXCHANGE APPLICATIONS

Chemically inert, mechanically tough, cationic metallo-polyelectrolytes designed as durable anion-exchange membranes (AEMs) via ring-opening metathesis polymerization (ROMP) of cobaltocenium-containing cyclooctene with triazole as the only linker group, followed by backbone hydrogenation to provide a new class of AEMs with a polyethylene-like framework and alkaline-stable cobaltocenium cation for ion transport, which exhibit excellent thermal, chemical and mechanical stability, as well as high ion conductivity. 1. An anion-exchange membrane comprising:a cationic metallo-polyectrolyte comprising a polymer backbone with a triazole group linker between the polymer backbone and cobaltocenium; andwherein the anion-exchange membrane has a polyethylene-like framework and alkaline-stable cobaltocenium for ion transport.2. The anion-exchange membrane of claim 1 , wherein the membrane is flexible.3. The anion-exchange membrane of claim 1 , wherein the polymer backbone comprises nonhydrolysable hydrocarbon.4. The anion-exchange membrane of claim 1 , wherein the anion-exchange membrane is not soluble in polar aprotic solvents.5. The anion-exchange membrane of claim 1 , wherein the polymer backbone is hydrophobic.6. The anion-exchange membrane of claim 1 , further comprising hydrophilic side-chains to facilitate ion transport.7. The anion-exchange membrane of claim 6 , wherein ion transport is facilitated via connected ionic channels.8. The anion exchange membrane of claim 1 , wherein the anion exchange membrane exhibits increased conductivity as temperature increases.9. A method for preparing an anion-exchange membrane comprising:performing a catalyzed click reaction to attach cobaltocenium onto a cyclic vinyl monomer;performing ring opening metathesis polymerization of the cyclic monomer, wherein the cyclic vinyl monomer comprises cobaltocenium with triazole linker groups;performing backbone hydrogenation of a resulting copolymer of the ring opening metathesis polymerization ...

Capture, removal, and storage of radioactive species

A method of capturing radioactive species from an aqueous solution and removing the radioactive species for disposal, includes: contacting the aqueous solution with a first sequestration resin comprising a sequestration ligand coupled to a sulfonic acid based polymer resin backbone, to allow the first sequestration resin to capture the radioactive species; removing the first sequestration resin with the captured radioactive species from the aqueous solution; and using an acid to lower a pH of the first sequestration resin to release the radioactive species from the first sequestration resin.

MOLECULARLY IMPRINTED POLYMER BEADS FOR EXTRACTION OF LITHIUM, MERCURY, AND SCANDIUM

The present disclosure provides Molecularly Imprinted Polymer (MIP) technology for selectively sequestering one or more target molecules from chemical mixtures. Also disclosed herein are MIP beads and methods of making and using thereof. 1. A plurality of macroreticular polymer beads comprising a copolymer having a plurality of complexing cavities which selectively bind Au(SO) , wherein the copolymer is prepared from:(a) a cationic ligand monomer complexed to a non-metal surrogate ion selected from the group consisting of tetrathionate, pentathionate, hexathionate; hexadionate, heptyldionate, octyidionate; 1,4-phenylene diacetate; butane disulfonate, pentane disulfonate, and hexane disulfonate,(b) a non-ligand monomer, and(c) a crosslinking monomer;whereinthe charge of the copolymer in the complexing cavity is opposite the charge of the target metal ion.2. A plurality of macroreticular polymer beads comprising a copolymer having a plurality of complexing cavities which selectively bind scandium tricarbonate , wherein the copolymer is prepared from:(a) a cationic ligand monomer complexed to a tribasic salt of benzene-1,3,5-triyl-tricarboxylate,(b) a non-ligand monomer, and(c) a crosslinking monomer;wherein the charge of the copolymer in the complexing cavity is opposite the charge of the target metal ion.3. The macroreticular beads of claim 1 , wherein the cationic ligand monomer is a polymerizable cation selected from the group consisting of ammonium claim 1 , pyridinium claim 1 , pyrollidinium claim 1 , imidazolium claim 1 , guanidinium claim 1 , phosphonium and sulfonium.4. The macroreticular beads of claim 3 , wherein the cationic ligand monomer is a 4-vinylbenzyl ammonium.5. The macroreticular beads of claim 4 , wherein the ligand monomer is N-(4-vinylbenzyl)-N claim 4 ,N claim 4 ,N-tri-n-pentyl ammonium or N-(4-vinylbenzyl)-N-decyl-N claim 4 ,N-dimethylammonium.6. The macroreticular beads of claim 4 , wherein the ligand monomer is N-(4-vinylbenzyl)-N claim 4 ,N ...

ION EXCHANGE RESINS, PURIFICATION METHODS AND METHODS OF MAKING IONIC RESINS

An ion exchange resin comprises a crosslinked resin and a salt covalently bonded to a carbon of the resin, wherein the salt comprises a first non-metallic cation and a first counteranion, wherein the first counteranion comprises a second non-metallic cation and a thiosulfate counteranion, and wherein the ion exchange resin is essentially free of metals. The ion exchange resin finds particular use in the removal of impurities from solutions that are useful in the manufacture of semiconductor devices. 1. An ion exchange resin , comprising a crosslinked resin and a salt covalently bonded to a carbon of the resin , wherein the salt comprises a first non-metallic cation and a first counteranion , wherein the first counteranion comprises a second non-metallic cation and a thiosulfate counteranion , and wherein the ion exchange resin is essentially free of metals.2. The ion exchange resin of claim 1 , wherein the second non-metallic cation is an optionally substituted ammonium cation.3. An ion exchange medium claim 1 , comprising an ion exchange resin of .4. The ion exchange medium of claim 3 , wherein said medium is a bead claim 3 , a membrane claim 3 , a filter claim 3 , an ion exchange column or a combination thereof.5. A purification method claim 1 , comprising contacting a composition comprising a solvent and an impurity with an ion exchange resin of claim 1 , thereby reducing the content of the impurity in the composition.6. The purification method of claim 5 , wherein the impurity is hydrogen peroxide or an organic peroxide.7. The purification method of claim 5 , wherein the impurity is a metal.8. The purification method of claim 5 , wherein the solvent is an organic solvent.9. The purification method of claim 8 , wherein the organic solvent is chosen from diisopropyl benzene claim 8 , triisopropyl benzene claim 8 , methanol claim 8 , isopropyl alcohol claim 8 , methyl isobutyl carbinol claim 8 , propylene glycol claim 8 , tripropylene glycol claim 8 , methyl ...

Process for polishing metal contaminants from an acidic solution comprising scandium

The present disclosure provides a process for polishing at least one metal contaminant from a stock solution comprising Sc comprising the steps of a) contacting the stock solution with an ion exchange resin capturing Sc and the at least one metal contaminate so as to produce a metal ion exchange resin complex, and b) scrubbing the metal resin complex with a scrubbing solution comprising a carboxylate ion, so as to produce a Sc ion exchange resin complex and a spent carboxylate solution, which can be treated by electrodialysis to regenerate the carboxylate ion required for scrubbing.

Dopants for the detection of nitrates

The present disclosure relates to an ion exchange process, as well as a process and system for detecting nitrates, which employ a class of dopants comprising at least two functional groups capable of simultaneous convergent hydrogen bonding with a nitrate ion. In an aspect, the present disclosure provides an ion exchange process for forming a negatively charged nitrate-dopant ion analyte for analysis by a spectrometry analysis instrument, comprising: providing a gas comprising a dopant in both neutral and ionized forms; contacting a nitrate-containing sample with the gas comprising the dopant and thereby desorbing a nitrate ion from the sample to form a negatively charged nitrate-dopant ion analyte and replacing the desorbed nitrate ion with a negatively charged ionized dopant molecule; wherein the dopant is an organic compound comprising two or more carbon atoms and two or more functional groups capable of simultaneous convergent hydrogen bonding with a nitrate ion; or the dopant is an organic compound comprising at least two carbon atoms and only a single functional group capable of hydrogen bonding with a nitrate ion, which group is a —COOH functional group, and where the carbon atom of the —COOH functional group is bonded directly to another carbonyl group; and with the proviso that the dopant is not lactic acid, a lactic acid salt or a compound that forms lactate ions upon ionization.

Removing colloidal cobalt from an aqueous composition

A method of removing colloidal cobalt from an aqueous composition comprising bringing the aqueous composition into contact with a vinyl aromatic resin, wherein the vinyl aromatic resin comprises benzyl alcohol groups, benzyl ether groups, and methylene bridge groups, wherein the vinyl aromatic resin has a chlorine content, by weight based on the weight of resin, of 10,000 ppm or less.

PRECURSOR POLYELECTROLYTE COMPLEXES COMPOSITIONS

The invention relates to compositions and methods of treatment employing compositions comprising polyelectrolyte complexes. The compositions include a water-soluble first polyelectrolyte bearing a net cationic charge or capable of developing a net cationic charge and a water-soluble second polyelectrolyte bearing a net anionic charge or capable of developing a net anionic charge. The total polyelectrolyte concentration of the first solution is at least 110 millimolar. The composition is free of coacervates, precipitates, latex particles, synthetic block copolymers, silicone copolymers, cross-linked poly(acrylic) and cross-linked water-soluble polyelectrolyte. The composition may be a concentrate, to be diluted prior to use to treat a surface. 1. A concentrate composition comprising:(a) a water-soluble first polyelectrolyte bearing a net cationic charge or capable of developing a net cationic charge wherein said first polyelectrolyte is a poly(diallyldimethyl ammonium chloride) homopolymer;(b) about 0.001% to 0.19% by weight of a water-soluble second polyelectrolyte bearing a net anionic charge or capable of developing a net anionic charge wherein said second polyelectrolyte comprises at least one of poly(acrylic acid), a copolymer of acrylic acid and maleic acid, a copolymer of acrylic acid and styrene, a copolymer of styrene sulfonic acid and maleic acid, a homopolymer of styrene sulfonic acid, or mixtures thereof;(c) about 0.1 to 10% by weight of a surfactant;(d) wherein the composition is free of precipitates, synthetic block copolymers, silicone copolymers, cross-linked poly(acrylic) and cross-linked water-soluble polyelectrolyte;(e) wherein the composition has a viscosity of less than about 1,000 centipoise;(f) wherein upon dilution, the concentrate composition forms a polyelectrolyte complex from the first polyelectrolyte and the second polyelectrolyte; and(g) wherein R, the molar ratio of charged groups present on said first polyelectrolyte to oppositely ...

FILTER, METAL ION REMOVING METHOD, AND METAL ION REMOVING APPARATUS

A filter includes a porous molding, the porous molding being a sintered product of mixed powder containing dry gel powder including an ion exchange resin and thermoplastic resin powder, or a swelled body of the sintered product. When water having an electric resistivity value of 18 MΩ·cm or more is allowed to pass through a space velocity of 1200 hr−1, the electric resistivity value of water after passage is 15 MΩ·cm or more. To provide a filter that can efficiently remove metal ions in a solution to be treated, and easily acquire a solution having an extremely low content of metal ions. 1. A filter comprising a porous molding , the porous molding being a sintered product of mixed powder containing dry gel powder including an ion exchange resin and thermoplastic resin powder , or a swelled body of the sintered product , andwhen water having an electric resistivity value of 18 MΩ·cm or more is allowed to pass through the filter at a space velocity of 1200 hr−1, the electric resistivity value of water after passage is 15 MΩ·cm or more.2. A method for removing metal ions in a solution to be treated , the method comprising{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a passage step of allowing the solution to be treated to pass through the filter according to .'}3. The removing method according to claim 2 , whereinthe passage step includes:a first passage step of allowing the solution to be treated to pass through a first filter; anda second passage step of allowing the solution to be treated subjected to the first passage step to pass through a second filter, and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the second filter is the filter according to .'}4. The removing method according to claim 3 , wherein the first filter includes a porous molding claim 3 , the porous molding being a sintered product of mixed powder containing dry gel powder including an ion exchange resin and thermoplastic resin powder claim 3 , or a swelled body of the sintered product.5. ...

METHOD AND SYSTEM FOR RECOVERING ACIDIC GAS

A method for recovering an acidic gas, includes: a step of bringing a gas to be treated that contains an acidic gas into gas-liquid into contact with an amine absorbing solution, allowing the amine absorbing solution to absorb the acidic gas, thereby removing the acidic gas from the gas to be treated; a step of allowing the amine absorbing solution that has absorbed the acidic gas to release the acidic gas, thereby regenerating the amine absorbing solution, and at the same time, recovering the released acidic gas; and an analysis step of calculating concentrations of iron ions and/or heavy metal ions in the amine absorbing solution. 110.-. (canceled)11. A method for recovering an acidic gas , comprising:a step of bringing a gas to be treated that contains an acidic gas into gas-liquid into contact with an amine absorbing solution, allowing the amine absorbing solution to absorb the acidic gas, thereby removing the acidic gas from the gas to be treated;a step of allowing the amine absorbing solution that has absorbed the acidic gas to release the acidic gas, thereby regenerating the amine absorbing solution, and at the same time, recovering the released acidic gas; andan analysis step of calculating concentrations of iron ions and/or heavy metal ions in the amine absorbing solution, a step of adjusting a pH value of the collected amine absorbing solution until the iron ions and/or the heavy metal ions adsorb to a chelating resin;', 'a step of passing the amine absorbing solution of which the pH value has been adjusted through the chelating resin, and thereby allowing the chelating resin to adsorb the iron ions and/or the heavy metal ions in the amine absorbing solution;', 'a step of passing an acidic regenerating solution through the chelating resin that has adsorbed the iron ions and/or the heavy metal ions, thereby allowing the iron ions and/or the heavy metal ions to desorb, regenerating the chelating resin, and at the same time, obtaining a sample containing the ...

ION EXCHANGE RESIN AND METHOD FOR ADSORBING AND SEPARATING METAL

Provided is a system for efficiently recovering trace metal from a large amount of a raw material, such as when trace metal is recovered from nickel oxide ore. This ion exchange resin has, on a carrier, an amide derivative represented by the following general formula. In the formula, R1 and R2 represent the same or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 represents a hydrogen atom or an arbitrary group, other than an amino group, bonded to α carbon as an amino acid. The amide derivative is preferably a glycineamide derivative. The carrier preferably includes a primary amine and/or a secondary amine. 2. The method for adsorbing and separating a metal according to claim 1 , wherein the amide derivative is a glycinamide derivative.3. The method for adsorbing and separating a metal according to claim 1 , the method comprising adsorbing a metal contained in an acid leaching solution obtained by high pressure acid leaching of nickel oxide ore on the ion exchange resin and recovering the metal adsorbed on the ion exchange resin.4. (canceled)5. (canceled)6. The method for adsorbing and separating a metal according to claim 2 , the method comprising adsorbing a metal contained in an acid leaching solution obtained by high pressure acid leaching of nickel oxide ore on the ion exchange resin and recovering the metal adsorbed on the ion exchange resin. The present invention relates to an ion exchange resin and a method for adsorbing and separating a metal.Cobalt and rare earth metals are known as valuable metals, and have various uses in industry. Cobalt is used, for example, in positive electrode materials for secondary batteries, and further for superalloys (high strength heat resistant alloys), which are used in jet engines of aircraft, for example. Rare earth metals are used in phosphor materials, negative electrode materials for nickel-hydrogen batteries, additives for magnets built into motors, abrasives for glass substrates used ...

Process and plant for treating water

A process for removing suspended particles and at least one ionic species from a feed water stream to produce a product water stream, the process includes the steps of forming agglomerates of the suspended particles in the feed water stream; passing the feed water stream containing agglomerated particles through a bed of particulate sorbent material so as to sorb the ionic species from the feed water onto the sorbent to provide a loaded sorbent and filter the agglomerated particles from the feed water using the bed of particulate sorbent material as a filtration medium to load the bed with the agglomerated particles, and thereby produce the product water stream; removing the filtered particles and the ionic species from the filtration medium; and re-using the regenerated sorbent in step b).

REACTION METHOD FOR REACTING REACTION OBJECT WITH LIQUID CONTAINING THE REACTION OBJECT BEING IN CONTACT WITH GRANULAR POROUS BODY

The present invention provides efficient reaction conditions by clarifying a relationship between a contact time and an optimum particle diameter etc. in a method for reacting a reaction object with a liquid containing the reaction object being in contact with a granular porous body. The upper limit D (mm) of the particle diameter of the granular porous body is determined from D=0.556×LN (T)+0.166 in a column flow method in non-circulation type, and determined from D=0.0315×T+0.470 in the column flow method in a circulation type and a shaking method. The contact time T (seconds) is given by a value obtained by dividing the volume (m) of the granular porous body by the flow rate (m/second) of the liquid in the column flow method in non-circulation type, given by a value obtained by multiplying the fluid flow time (seconds) of the liquid by a volume ratio obtained by dividing the volume of the granular porous body by the volume of the liquid in the column flow method in a circulation type, and given by a value obtained by multiplying the volume ratio by the elapsed time (seconds) after addition of the granular porous body in the liquid in the shaking method. 1. A reaction method for reacting a reaction object with a liquid containing the reaction object being in contact with a granular porous body ,whereinthe reaction object is a metal ion, or a low-molecular-weight compound having a molecular weight of 2000 or less,the method includes a column flow method in which the liquid is caused to pass through a column filled with the granular porous body, so that the liquid is diffused in the granular porous body, or a shaking method in which the granular porous body is dispersively added in the liquid, and the liquid and the granular porous body are shaken to diffuse the liquid in the granular porous body,the granular porous body includes a skeleton body including an inorganic compound having a three-dimensional continuous network structure, and has a two-step hierarchical ...

PRECURSOR POLYELECTROLYTE COMPLEXES COMPOSITIONS

The invention relates to compositions and methods of treatment employing compositions comprising polyelectrolyte complexes. The compositions include a water-soluble first polyelectrolyte bearing a net cationic charge or capable of developing a net cationic charge and a water-soluble second polyelectrolyte bearing a net anionic charge or capable of developing a net anionic charge. The total polyelectrolyte concentration of the first solution is at least 110 millimolar. The composition is free of coacervates, precipitates, latex particles, synthetic block copolymers, silicone copolymers, cross-linked poly(acrylic) and cross-linked water-soluble polyelectrolyte. The composition may be a concentrate, to be diluted prior to use to treat a surface. 1. A concentrate composition comprising:(a) about 0.001% to about 5.0% by weight of a water-soluble first polyelectrolyte bearing a net cationic charge or capable of developing a net cationic charge wherein said first polyelectrolyte is a poly(diallyldimethyl ammonium chloride) homopolymer;(b) a water-soluble second polyelectrolyte bearing a net anionic charge or capable of developing a net anionic charge wherein said second polyelectrolyte is selected from the group consisting of poly(acrylic acid), a copolymer of acrylic acid and maleic acid, a copolymer of acrylic acid and styrene, a copolymer of styrene sulfonic acid and maleic acid, and mixtures thereof;(c) a hypochlorite;(d) wherein the composition is free of precipitates, synthetic block copolymers, silicone copolymers, cross-linked poly(acrylic) and cross-linked water-soluble polyelectrolyte;(e) wherein the composition has a viscosity of less than about 1,000 centipoise; and(f) wherein upon dilution, the concentrate composition forms a polyelectrolyte complex.2. The composition of claim 1 , wherein the composition further comprises a buffer.3. The composition of claim 1 , wherein the composition further comprises a dye.4. The composition of claim 1 , wherein the ...

METHOD FOR PRODUCING MONODISPERSE, AMIDO-METHYLATED VINYL-AROMATIC BEAD POLYMERS

The invention relates to a method of producing monodisperse amidomethylated vinylaromatic bead polymers, to ion exchangers prepared from these monodisperse amidomethylated vinylaromatic bead polymers by alkaline hydrolysis, to the method of using said monodisperse amidomethylated vinylaromatic bead polymers in the manufacture of ion exchangers and chelating resins, and also to the method of using these ion exchangers in the removal of heavy metals and noble metals from aqueous solutions or gases. 2. The method as claimed in claim 1 , wherein the temperature is 62° C. to 68° C.3. The method as claimed in claim 1 , wherein the at least one protic acid comprises sulfuric acid claim 1 , hydrochloric acid claim 1 , oleum claim 1 , or mixtures thereof.4. The method as claimed in claim 1 , wherein the organic solvent comprises chlorinated aliphatic hydrocarbons.5. The method as claimed in claim 4 , wherein the ratio of solvent to compound of formula (I) is 5.5:1 to 8.5:1.6. The method as claimed in claim 1 , wherein the at least one condensed formaldehyde comprises paraformaldehyde claim 1 , or trioxane claim 1 , or mixtures thereof.7. A monodisperse amidomethylated vinylaromatic bead polymer produced by the process of .8. A method of producing a monodisperse ion exchanger claim 7 , the method comprising converting the monodisperse amidomethylated vinylaromatic bead polymer of into a monodisperse vinylaromatic aminomethylated bead polymer in the presence of at least one alkali metal hydroxide.9. A monodisperse ion exchanger obtained as claimed in .10. A method of using removing heavy metals or noble metals claim 9 , or their vapors from fluids claim 9 , the method comprising contacting the fluids with the ion exchangers as claimed in claim 9 , wherein the fluids include aqueous solutions of alkalis or alkaline earths claim 9 , sols of the alkali-chloride electrolysis claim 9 , aqueous hydrochloric acids claim 9 , wastewaters or flue gas scrubs claim 9 , groundwaters claim ...

Processes for the recovery of uranium from wet-process phosphoric acid using dual or single cycle ion exchange approaches

In alternative embodiments, the invention provides processes and methods for the recovery, removal or extracting of, and subsequent purification of uranium from a wet-process phosphoric acid using a continuous ion exchange processing approach, where the uranium is recovered from a phosphoric acid, or a phos-acid feedstock using either a dual or a single stage extraction methodology. In both cases an intermediate ammonium uranyl-tricarbonate solution is formed. In alternative embodiments, in the dual cycle approach, this solution is contacted in a second continuous ion exchange system with a strong anion exchange resin then subsequently recovered as an acidic uranyl solution that is further treated to produce an intermediate uranyl peroxide compound which is ultimately calcined to produce the final uranium oxide product. In alternative embodiments, in the single cycle case, the intermediate ammonium uranyl-tricarbonate solution is evaporated to decompose the ammonium carbonate and produce an intermediate uranium carbonate/oxide solid material. These solids are digested in an acid medium, and then processed in the same manner as the secondary regeneration solution from the dual cycle process to produce an intermediate uranyl peroxide that is calcined to produce a final uranium oxide product.

Filter and Metal Ion Removal Device

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 molded article is a sintered material of mixed powder or a swollen material of the sintered material. The mixed powder contains dried gel powder and thermoplastic resin powder. The dried gel powder contains an ion exchange resin including a sulfonic acid group, and a nitrogen-containing chelating resin. 1. A depth filter comprisinga porous molded article being a sintered material of mixed powder or a swollen material of the sintered material, the mixed powder containing dried gel powder and thermoplastic resin powder, whereinthe dried gel powder contains an ion exchange resin including a sulfonic acid group, and a nitrogen-containing chelating resin.2. The depth filter according to claim 1 , whereina ratio (C1/C2) of a content C1 of the ion exchange resin to a content C2 of the nitrogen-containing chelating resin is 0.1 or higher and 100 or lower in a mass ratio.3. The depth filter according to claim 1 , whereinwhen 100 parts by mass of the porous molded article is immersed in 500 parts by mass of propylene glycol 1-monomethyl ether 2-acetate at 23° C. in 12 hours, a sulfuric acid ion content in an immersion liquid is 0.03 ppm or less.4. The depth filter according to claim 1 , whereinwhen water having a specific electrical resistance value of 18 MΩ·cm or greater is caused to pass through the depth filter at a space velocity of 1200 hr-1, a specific electrical resistance value of the water after being caused to pass through the depth filter is 15 MΩ·cm or greater.5. A metal ion removal device comprising:a first filter; anda second filter configured to remove metal ions from a treatment liquid that has passed through the first filter, whereinthe first filter is a filter including a porous molded article, the porous molded article being a ...

Polymers having chelating functionality

The present invention provides novel polymers having chelating functionality and comprising units derived from an ethylenically unsaturated aminocarboxylate monomer which comprises units derived from ethylenediamine triacetic acid or its salt and a polymerizable vinyl monomer. The polymerizable vinyl monomer may be selected from (0-, m-, p-)DVBMO, allyl glycidyl ether, and glycidyl (meth)acrylate. The polymer may also comprise units derived from one or more ethylenically unsaturated monomers.

SULFONATED AMINOMETHYLATED CHELATE RESINS

The invention relates to sulfonated aminomethylated chelate resins, to a method for producing same, to the use thereof for obtaining and purifying metals, in particular rare earth metals, from aqueous solutions and organic liquids, and for producing highly pure silicon. 2. The chelating resin as claimed in claim 1 , wherein:{'sub': 1', '2', '2', '2', '2, 'sup': 1', '2, 'Rand Rindependently of one another, are —CHPO(OX), —CHPO(OH)OXor hydrogen; and'}{'sup': 1', '2, 'Xand X, independently of one another, represent hydrogen, sodium or potassium.'}3. A process for preparing the chelating resin as claimed in claim 1 , the process comprising: at least one monovinylaromatic compound and at least one polyvinylaromatic compound, and', 'at least one initiator or an Initiator combination, 'a) converting monomer droplets composed ofinto a bead polymer,{'sub': '3', 'b) phthalimidomethylating and sulfonating the bead polymer with phthalimide in the presence of oleum to produce phthalimidomethylated, sulfonated bead polymer, wherein the amount of free SOis at least 0.69 mol based on 1 mol of phthalimide,'}c) converting the phthalimidomethylated, sulfonated bead polymer into aminomethylated, sulfonated bead polymer, andd) reacting the aminomethylated, sulfonated bead polymer to afford chelating resins comprising functional groups of structural element (I).4. The process for preparing the chelating resin as claimed in claim 3 , wherein the bead polymers in step a) are prepared in monodisperse form and thus monodisperse chelating resins are prepared.5. The process for preparing the chelating resin as claimed in claim 3 , wherein the amount of free SOin step b) is between 0.69 and 1.5 mol based on 1 mol of phthalimide.6. The process for preparing the chelating resin as claimed in claim 3 , wherein the amount of free SOin step b) is between 0.69 and 1.2 mol based on 1 mol of phthalimide.7. A chelating resin comprising functional groups of structural element (I) prepared as claimed in . ...

METHOD FOR MAKING ANION EXCHANGE AND CHELANT RESINS INCLUDING ALIPHATIC AMINO FUNCTIONAL GROUPS

A method for making an anion exchange or chelant resin comprising a vinyl aromatic polymer including a repeating unit comprising an aromatic ring substituted with an aliphatic amino group, wherein the method comprises the step of reacting a vinyl aromatic polymer with a nitro compound comprising from 1 to 12 carbon atoms with the proviso that the a carbon includes at least one hydrogen. 1. A method for making an anion exchange or chelant resin comprising the steps of:i) reacting a vinyl aromatic polymer with a nitro compound to form a polymer having a repeating unit comprising an aromatic ring substituted with a nitro group, wherein the nitro compound comprises from 1 to 12 carbon atoms with the proviso that the a carbon includes at least one hydrogen, andii) reducing the nitro group to form an aliphatic amino group.2. The method of wherein the nitro compound is a nitroalkane.3. The method of wherein the nitro compound is selected from at least one of: nitromethane claim 1 , nitroethane claim 1 , 1-nitropropane and 2-nitropropane.4. The method of wherein the reaction between the vinyl aromatic polymer and nitro compound is conducted in the presence of a metal reagent having a reduction potential of from 1.0 to 2.5V.5. The method of wherein the reaction between the vinyl aromatic polymer and nitro compound is conducted in the presence of a metal reagent selected from at least one of: Mnand Ce.6. The method of wherein the metal reagent is electrochemically regenerated by anodic oxidation.7. The method of where the vinyl aromatic polymer comprises a polymer derived from a reaction mixture comprising styrene and divinylbenzene. The invention generally relates to methods for making anion exchange and chelant resins including amination of vinyl aromatic copolymers.For at least sixty years anion exchange and chelant resins have been produced by a multi-step process including the chloromethylation of a vinyl aromatic polymer followed by amination. See for example: U.S. Pat. ...

PRECURSOR POLYELECTROLYTE COMPLEXES COMPOSITIONS

The invention relates to compositions and methods of treatment employing compositions comprising polyelectrolyte complexes. The compositions include a water-soluble first polyelectrolyte bearing a net cationic charge or capable of developing a net cationic charge and a water-soluble second polyelectrolyte bearing a net anionic charge or capable of developing a net anionic charge. The total polyelectrolyte concentration of the first solution is at least 110 millimolar. The composition is free of coacervates, precipitates, latex particles, synthetic block copolymers, silicone copolymers, cross-linked poly(acrylic) and cross-linked water-soluble polyelectrolyte. The composition may be a concentrate, to be diluted prior to use to treat a surface. 1. A concentrate composition comprising:(a) about 0.001 wt % to about 5.0 wt % of a water-soluble first polyelectrolyte bearing a net cationic charge or capable of developing a net cationic charge wherein said first polyelectrolyte is a poly(diallyldimethyl ammonium chloride) homopolymer;(b) about 0.001% to 0.19% by weight of a water-soluble second polyelectrolyte bearing a net anionic charge or capable of developing a net anionic charge;(c) an oxidant;(d) a fragrance;(d) wherein the composition is free of precipitates, synthetic block copolymers, silicone copolymers, cross-linked poly(acrylic) and cross-linked water-soluble polyelectrolyte;(e) wherein the composition has a viscosity of less than about 1,000 centipoise;(f) wherein upon dilution, the concentrate composition forms a polyelectrolyte complex from the first polyelectrolyte and the second polyelectrolyte; and(g) wherein R, the molar ratio of charged groups present on said first polyelectrolyte to oppositely charged groups present on said second polyelectrolyte, is from about 0.1 to 20.2. The composition of claim 1 , wherein the composition further comprises a buffer.3. The composition of claim 1 , wherein the composition further comprises a dye.4. The composition of ...

Ion exchange resins selective for the complexation of univalent anions in aqueous solutions

Ion exchange resin macroporous beads for the highly selective extraction of univalent anions from aqueous solutions. A specific example is the removal of dicyanoaurate and dicyanoargentate from cyanide leach solutions and tailings. The beads have a maximum number of ligands specific for the desired univalent anion, while maintaining sufficient separation to minimize binding of polyvalent ions. The beads are prepared using a functionalized monomer with the use of a specifically tuned coordinator. The beads can be used as a sensor for detecting the amount of anions captured when interrogated by an appropriate light source.

METHOD FOR PRODUCING A COMPLEX-FORMING SORBENT FOR SELECTIVE EXTRACTION OF INDIUM

The invention relates to the field of ion exchange with the formation of a complex or chelate by using complex-forming polymers and can be used in nonferrous metallurgy and hydrometallurgy of indium for extraction of indium from wastewaters, as well as in the chemical industry and for producing special-purity substances. 1. A method for producing a gem-diphosphonic functional groups-containing , complex-forming sorbent for selective extraction of indium , the method comprisingtreating a spherically granulated cross-linked macroporous acrylonitrile-divinylbenzene copolymer with dried phosphorous acid at an elevated temperature with following separating and washing product granules with water and ethanol sequentially.2. The method according to claim 1 , characterized in that the treating is carried out in a melt of dried phosphorous acid at a temperature of from 140 to 160° C. for from 13 to 35 hours.3. The method according to claim 1 , characterized in that the treating with dried phosphorous acid is carried out in chlorobenzene at a temperature of from 100 to 130° C. for from 13 to 35 hours. The invention relates to the field of ion exchange with the formation of a complex or chelate by using complex-forming polymers and can be used in nonferrous metallurgy and hydrometallurgy of indium, in the extraction of indium from wastewaters, as well as in the chemical industry and for producing special-purity substances [C08F8/40; B01J45/00].Most of the known ion-exchange and sorption materials exhibit a reduced selectivity in the methods of extracting indium due to steric hindrance for the formation of coordinatively saturated complexes of indium with the functional groups of an ion-exchange material because of their spacing from each other, distorted geometry and poor availability caused by the influence of the polymer structure of the material. However, in most cases, the processes of extraction and concentration of indium from various process solutions should have a high ...

Process for recovering components from alkaline batteries

The present invention relates to separation and recovery of metals from ground alkaline batteries using anode mud (zinc electrolysis waste) and other manganese and zinc containing materials. The material commonly referred to as alkaline black (AKB) is solubilized into sulfate media and the manganese to zinc ratio is adjusted. The solution containing metals is processed using crystallization and ion exchange methods to produce manganese sulfate and zinc sulfate solutions for several possible applications. 1. A method for recovering metals from ground alkaline batteries comprising the steps of:a. selectively leaching under reductive conditions manganese and zinc from alkaline black by mixing the alkaline black and a manganese oxide containing material and/or manganese sulfate with a sulfuric acid solution at a leaching temperature of 15-40° C., for 1-5 hours to obtain a mixture,b. filtering the mixture to obtain a manganese and zinc sulfate filtrate and a Pb/Ca/organics as a filter cake,c. heating the manganese and zinc sulfate filtrate to a crystallization temperature of 70-100° C. and keeping the crystallization temperature under reflux cooling for at least 30 minutes to precipitate manganese in a form of sulfate crystals,d. filtrating the sulfate crystals and obtaining a manganese depleted filtrate, ande. solubilizing the sulfate crystals in water to obtain a sulfate solution and separating manganese and zinc by a chelating ion exchange.2. The method for recovering according to claim 1 , wherein the manganese oxide containing material is MnO.3. The method for recovering according to claim 1 , wherein the manganese oxide containing material is manganese trioxide.4. The method for recovering according to claim 1 , wherein the manganese and zinc sulfate filtrate obtained in the filtering step (step b) has a manganese to zinc ratio between 10:1 and 3.6:1.5. The method for recovering according to claim 4 , wherein the manganese and zinc sulfate filtrate obtained in the ...

FILTER FOR WATER-PURIFICATION DEVICE AND WATER-PURIFICATION DEVICE INCLUDING THE SAME

Disclosed is a filter for a water-purification device, the filter including a filter housing having a water inlet and a water outlet defined therein; and a filter member disposed in the filter housing to purify water introduced through the inlet and supply the purified water to the outlet, wherein the filter member includes a carbon block produced by mixing 40 to 50% by weight of titanium oxide, 30 to 40% by weight of activated carbon, and 18 to 23% by weight of binder with each other. Further, a water-purification device including the filter is disclosed. 1. A filter for a water-purification device , the filter comprising:a filter housing having a water inlet and a water outlet; anda filter member disposed in the filter housing and configured to purify water introduced through the water inlet and to supply the purified water to the water outlet,wherein the filter member comprises a carbon block comprising 40 to 50% by weight of titanium oxide, 30 to 40% by weight of activated carbon, and 18 to 23% by weight of a binder.2. The filter of claim 1 , wherein the binder is made of polyethylene (PE).3. The filter of claim 2 , wherein the carbon block has a hollow tube shape.4. The filter of claim 3 , further comprising an anion exchange resin non-woven fabric that surrounds an outer surface of the carbon block.5. The filter of claim 3 , wherein a ratio of an inner diameter and an outer diameter of the carbon block is in a range from 1:3 to 1:5.6. The filter of claim 1 , wherein the titanium oxide comprises titanium dioxide.7. The filter of claim 1 , wherein the titanium oxide comprises sodium orthotitanate (NaTiO).9. The filter of claim 1 , wherein the titanium oxide comprises titanium hydroxide.12. A water-purification apparatus comprising at least one water-purification filter that includes the filter of .13. A filter for a water-purification device claim 1 , the filter comprising:a filter housing having a water inlet and a water outlet; anda filter member disposed in ...

PURE CHELATION PROCESS

The present invention relates to metal complexes and methods of synthesizing the metal complexes. The invention is further directed to pharmaceutical and/or dietary supplement composition comprising compounds synthesized as described herein. 1. A method of synthesizing chelated metals , comprising the steps of:dissociating a metal salt in water to produce an aqueous solution of metal ions;solubilizing a chelating agent in water to produce an aqueous solution of chelating agent;mixing the aqueous solution of metal ions with the aqueous solution of chelating agent to produce an aqueous solution containing a metal chelate; andprecipitating a metal chelate product out of the aqueous solution containing a metal chelate by adjusting the pH to between about 3 and about 4,wherein the method is conducted in an oxygen-free environment.2. The method of claim 1 , further comprising the steps of:cooling the aqueous solution containing metal chelate;collecting the metal chelate product from the aqueous solution containing a metal chelate; andwashing the metal chelate product with ascorbic acid followed by absolute alcohol.3. The method of claim 1 , wherein the metal salt is the salt of a transition metal.4. The method of claim 3 , wherein the transition metal is a member of the group 7 transition metals.5. The method of claim 3 , wherein the transition metal is selected from the group consisting of: copper claim 3 , cobalt claim 3 , nickel claim 3 , zinc claim 3 , and manganese.6. The method of claim 1 , wherein the steps of dissociating a metal salt in water is performed in a first nitrogen-purged reactor.7. The method of claim 1 , wherein the step of dissociating the metal salt in water further comprises the step of mixing the metal with hydrochloric acid.8. The method of claim 1 , wherein the metal salt is completely dissolved during the step of dissociating the metal salt in water.9. The method of claim 8 , wherein the step of dissociating the metal salt in water comprises ...

Iminodiacetic Acid Type Chelate Resin and Method for Producing Same

An iminodiacetic acid type chelate resin which can be easily and efficiently produced and which can efficiently adsorb and separate metal ions; and a method for producing the same are developed. The use of a chelate rein having a carboxymethyl group introduced into primary amino groups of the polyvinylamine crosslinked polymer particles can facilitate the efficient adsorption and separation of metal ions in water. The chelate resin can be obtained by a production method in which an N-vinyl carboxylic acid amide is suspension polymerized with a crosslinkable monomer in salt water in the presence of a dispersant thereby to obtain a polyvinyl carboxylic acid amide crosslinked polymer particles, and the obtained polyvinyl carboxylic acid amide crosslinked polymer is hydrolyzed to thereby introduce a carboxymethyl group into primary amino groups of the polyvinylamine crosslinked polymer particles. 1. A chelate resin characterized in that a carboxymethyl group is introduced into primary amino groups of polyvinylamine crosslinked polymer particles.2. The chelate resin according to claim 1 , characterized in that a sodium salt type carboxymethyl group is introduced into the primary amino groups of the polyvinylamine crosslinked polymer particles in an amount of 50% by mass or more with respect to a dry mass after the introduction.3. A method for producing a chelate resin claim 1 , characterized by performing suspension polymerization in salt water containing an N-vinyl carboxylic acid amide and a crosslinkable monomer in a presence of a dispersant to obtain crosslinked polymer particles claim 1 , hydrolyzing the obtained crosslinked polymer particles to obtain polyvinylamine crosslinked polymer particles claim 1 , and introducing a carboxymethyl group into primary amino groups of the polyvinylamine crosslinked polymer particles.4. The method for producing a chelate resin according to claim 3 , characterized in that a sodium salt type carboxymethyl group is introduced into ...

A Process, Method and Plant for Recovering Scandium

The present invention relates to a process, method and plant for recovering scandium and ions containing scandium using an ion exchange resin from a feed stream. The feed stream may be, but is by no means limited to, a leach liquor or leach pulp.

Antimicrobial And Biological Active Polymer Composites And Related Methods, Materials and Devices

Biologically activated ion-exchange polymer salts are made by exchanging biologically active ionic agents onto ion-exchange polymers. The activated polymers are uniquely surface active and stable to thermal degradation and chemical and other forms of decomposition. The activated ion-exchange polymer salts may be processed and combined with polymer precursors using novel methods and materials to produce stable, biologically activated polymer composites, including antimicrobial and antifouling polymer composites.

HELICAL SCREW ION EXCHANGE AND DESICCATION UNIT FOR NUCLEAR WATER TREATMENT SYSTEMS

Disclosed herein are systems, methods, processes, and apparatuses for treating radioactive waste, through systems designed to bind and dry radioactive media. In some of its various embodiments, the system includes at least one helical screw designed to receive and mix liquid wastes with ion exchange media, as well as convey the resulting slurry through one or more of a binding, dewatering, and drying/off-gassing region. 1. A helical screw ion exchange unit , comprising:a helical screw with one or more sections; receive contaminated water;', 'receive an ion exchange media;', 'mix the contaminated water with the ion exchange media;', 'bind contaminants in the contaminated water to the ion exchange media;', 'release decontaminated water; and', 'release a slurry of ion exchange media with bound contaminants;, 'mixing and binding regions configured to receive the slurry of ion exchange media with bound contaminants', 'remove excess water from the slurry of ion exchange media with bound contaminants; and', 'release dewatered ion exchange media with bound contaminants;, 'a dewatering region configured to receive the dewatered ion exchange media with bound contaminants;', 'dry the dewatered ion exchange media with bound contaminants;', 'collect off-gasses released during drying; and', 'release stabilized ion exchange media with bound contaminants., 'a drying and off-gassing region configured to2. The system of claim 1 , wherein the contaminated water is introduced to the helical screw at one of a first end vicinity and second end vicinity.3. The system of claim 1 , wherein one or more of the helical screw rotational speed claim 1 , inclination claim 1 , contaminated water feed rate claim 1 , and media feed rate are adjustable during operation.4. The system of claim 1 , wherein heat is applied to one or more of the regions to control a temperature of any section of the exchange unit.5. The system of claim 1 , wherein the drying and off-gassing region comprises a vacuum to ...

PROCESS FOR RECOVERY OF LITHIUM FROM BRINE

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 lithium ion complex with the lithium ion sieve, and decomplexing the lithium ion from the lithium ion sieve in a second stirred reactor to form the lithium ion sieve and an acidic lithium salt eluate. 1. A process for recovery of lithium ions from a lithium-bearing brine , the process comprising:contacting the lithium-bearing brine with a lithium ion sieve for less than about one hour in a first reactor to form a lithium ion complex with the lithium ion sieve; anddecomplexing lithium ions from the lithium ion sieve in a second reactor to form an acidic lithium salt eluate solution separated from the lithium ion sieve;wherein the lithium ion sieve comprises an oxide of titanium or niobium;wherein a pH of the first reactor is maintained at a constant value through addition of an alkali.2. The process of claim 1 , wherein the decomplexing is performed by elution using an acid.3. The process of claim 2 , wherein a concentration of the acid is maintained at a constant value through additions of said acid.4. The process of claim 3 , wherein the concentration of the acid is less than 0.1 M.5. The process of claim 3 , wherein the pH of the acid is greater than 1 and less than 3.6. The process of claim 3 , wherein the pH of the acid is approximately 2.7. The process of claim 1 , wherein the pH is maintained at the constant value of greater than 4 and less than 9.8. The process of claim 1 , wherein the pH in the first reactor is greater than 6 and less than 8.9. The process of claim 1 , wherein more than 90% of the lithium ion sieves have an average particle diameter of less than 40 μm and more than 90% of the lithium ion sieves have an average particle diameter of greater than 0.4 μm.10. The process of claim 1 , wherein more than 90% by volume ...

Chemically Modified Graphene

This disclosure relates to graphene derivatives, as well as related devices including graphene derivatives and methods of using graphene derivatives.

Method of capturing heavy metals by a chemically functionalized surface

There is described a method for heavymetal capture, which method comprises the step of bringing the heavy metal into contact with a chemically functionalized surface prepared by a plasma process, the surface being provided with organic functional groups able to coordinate with and thereby capture the heavy metal.

AGROCHEMICAL RESINATES FOR AGRICULTURAL APPLICATIONS

The invention encompasses resinate formulations comprising an agricultural active ingredient and an ion exchange resin, wherein the agricultural active ingredient is imbibed upon the ion exchange resin; and methods of treating an agricultural surface. The invention also encompasses methods of manufacturing an agricultural formulation comprising a resinate, comprising: providing an agricultural active ingredient and an ion exchange resin; and mixing the agricultural active ingredient and the ion exchange resin to imbibe the agricultural active ingredient upon the ion exchange resin, thereby forming the resinate. 1. A resinate formulation comprising an agricultural active ingredient and an ion exchange resin , wherein the agricultural active ingredient is imbibed upon the ion exchange resin.2. The formulation of claim 1 , wherein the formulation comprises a biodegradable ion exchange resin.3. The formulation of claim 1 , wherein the agricultural active ingredient is an anionic active ingredient or a cationic active ingredient.4. (canceled)5. (canceled)6. The formulation of claim 1 , wherein the agricultural active ingredient is a pesticide or a herbicide.7. (canceled)8. The formulation of claim 1 , wherein the ion exchange resin is an anion exchange resin.9. The formulation of claim 1 , wherein the ion exchange resin is crosslinked.10. The formulation of claim 1 , wherein the ion exchange resin comprises a synthetic polymer or a modified naturally derived polymer.11. The formulation of claim 10 , wherein the synthetic polymer is a crosslinked styrene/divinyl benzene with an ionic comonomer.12. The formulation of claim 10 , wherein the modified naturally derived polymer is diethylamino ethylcellulose or carboxymethyl cellulose.13. The formulation of claim 1 , wherein the ion exchange resin comprises non-polymeric particles modified with organic ionic polymers.14. The formulation of claim 1 , wherein the resinate formulation is formulated as particles having a particle ...

Processes for the Recovery of Uranium from Wet-Process Phosphoric Acid Using Dual or Single Cycle Ion Exchange Approaches

In alternative embodiments, the invention provides processes and methods for the recovery, removal or extracting of, and subsequent purification of uranium from a wet-process phosphoric acid using a continuous ion exchange processing approach, where the uranium is recovered from a phosphoric acid, or a phos-acid feedstock using either a dual or a single stage extraction methodology. In both cases an intermediate ammonium uranyl-tricarbonate solution is formed. In alternative embodiments, in the dual cycle approach, this solution is contacted in a second continuous ion exchange system with a strong anion exchange resin then subsequently recovered as an acidic uranyl solution that is further treated to produce an intermediate uranyl peroxide compound which is ultimately calcined to produce the final uranium oxide product. In alternative embodiments, in the single cycle case, the intermediate ammonium uranyl-tricarbonate solution is evaporated to decompose the ammonium carbonate and produce an intermediate uranium carbonate/oxide solid material. These solids are digested in an acid medium, and then processed in the same manner as the secondary regeneration solution from the dual cycle process to produce an intermediate uranyl peroxide that is calcined to produce a final uranium oxide product. 124.-. (canceled)25. A process for the isolation of uranium from wet process phosphoric acid , the process comprising:(a) providing a phosphoric acid solution or a phos-acid feedstock comprising uranium;(b) providing a continuous ion exchange system comprising a chelating or complexing exchange (CE) resin that binds uranium, a weakly acidic cationic exchange resin with chelating amino methyl phosphonic acid,', 'an aminophosphonic chelating resin,', 'a macroporous polystyrene based chelating resin, with iminodiacetic groups, or', 'a composition comprising an agent having chelating groups, functionalities or moieties that bind uranium or having iminodiacetic groups, chelating ...

NOVEL ALUMINUM-DOPED, IMINODIACETIC ACID GROUP-CONTAINING CHELATE RESINS

The present invention relates to aluminum-doped chelate resins containing iminodiacetic acid groups, to a production process for aluminum-doped chelate resins containing iminodiacetic acid groups, and to a device comprising at least one layer of at least one aluminum-doped chelate resin containing iminodiacetic acid groups, and to the uses of this device and of the chelate resins for removal of fluoride from water. 110-. (canceled)12. The resin according to claim 11 , wherein the functionalization level of the amino groups with acetic add groups is 14 to 1.65.13. The resin according to claim 12 , wherein a first substitution level of aromatic groups of the polymer with the iminodiacetic groups represented in formula (I) is 0.6 to 1.5.14. The resin according to claim 13 , wherein the first substitution level is 0.0 to 1.2 and the functionalization level is 1.4 to 1.65.15. The resin according to claim 13 , wherein the first substitution level is 0.7 to 0.9 and the functionalization level is 1.4 to 1.65.16. The resin according to claim 11 , whereinthe polymer comprises repeat units derived from at least one monovinylaromatic compound and at least one polyvinylaromatic compound; andX is nitrate, nitrite, hydrogensulfate, hydrogencarbonate or a halide.17. The resin according to claim 11 , wherein:the monovinylaromatic compounds include styrene, vinyltoluene, ethylstyrene, a methylstyrene, chlorostyrene, chloromethylstyrene, alkyl acrylates or alkyl methacrylates;the polyvinylaromatic compounds include divinylbenzene, divinyltoluene, trivinylbenzene, divinylnaphthalene, trivinylnaphthalene, 1,7-octadiene, 1,5-hexadiene, ethylene glycol dimethacrylate, trimethylolpropane trimethacrylate or allyl methacrylate; andX is halide.18. The resin according to claim 15 , whereinthe monovinylaromatic compound is styrene;the polyvinylaromatic compound divinylbenzene; andX is chlorine.191. A process for producing the chelate resin as claimed in claim claim 15 , the process comprising: ...

Novel macrocycle with repeating trazole-carbazole units

Disclosed herein are compositions of tricarbazole triazolophane (tricarb) of Formulas (I), (II) and (III): wherein R of Formula (I) is selected from a group consisting of alkyl (for example, C 6 -C 18 ), alkyl-substituted phenyl derivatives, and substituted glycol derivatives, among others, or a combination thereof, and R , R ′ and R ″ of Formulas (II) and (III) are independently selected from a group consisting of alkyl (for example, C 6 to C 18 ), alkyl-substituted phenyl derivatives, and substituted glycol derivatives, or a combination thereof. The disclosure presents examples of thin films composed of the same as well as methods of binding anions from the same.

Ion Exchange Resins Selective for the Complexation of Univalent Anions in Aqueous Solutions

Ion exchange resin macroporous beads for the highly selective extraction of univalent anions from aqueous solutions. A specific example is the removal of dicyanoaurate and dicyanoargentate from cyanide leach solutions and tailings. The beads have a maximum number of ligands specific for the desired univalent anion, while maintaining sufficient separation to minimize binding of polyvalent ions. The beads are prepared using a functionalized monomer with the use of a specifically tuned coordinator. The beads can be used as a sensor for detecting the amount of anions captured when interrogated by an appropriate light source. 1. A macroporous ion exchange resin polymer bead comprising:a plurality of ligands selective for a specific univalent ion, the ligands co-polymerized with a non-complexing monomer and a crosslinker;wherein each ligand comprises a coordination site supplying the appropriate charge for the univalent ion; andwherein the ligands are sufficiently separated to minimize binding of polyvalent ions to the bead.2. The bead of wherein the monomer comprises styrene and the crosslinker comprises divinyl benzene.3. The bead of wherein the bead does not comprise the univalent ion.4. The bead of wherein the ligand is cationic5. The bead of wherein the ligand is monodentate.6. The bead of comprising a number of ligands to substantially maximize a binding capacity of the bead to the univalent ion while maintaining spatial separation to minimize cooperative effects between ligands.7. The bead of wherein the ligand is selected from the group consisting of cationic oxygen containing heterocyclics claim 1 , cationic nitrogen containing heterocyclics claim 1 , cationic sulfur containing heterocyclics claim 1 , cationic phosphorous containing heterocyclics claim 1 , ammonium salts claim 1 , phosphonium salts claim 1 , acylinium salts claim 1 , metallocenium salts claim 1 , amidinium salts claim 1 , imminium salts claim 1 , trityl salts claim 1 , 4-vinylbenzyl-N claim 1 ,N ...

Method for producing amino methylated bead polymerizates from n-carboxylic acid methylphthalimide esters

The invention relates to a process for preparing aminomethylated bead polymers from N-carboxymethylphthalimides, which are used as anion exchangers or can be converted further to chelate resins.

METHOD FOR PRODUCING AMINO METHYLATED BEAD POLYMERIZATES

The invention relates to a process for preparing aminomethylated bead polymers using condensed formaldehydes and carboxylic anhydrides. 2. The process according to claim 1 , wherein the monovinylaromatic compounds are styrene claim 1 , α-methylstyrene claim 1 , vinyltoluene claim 1 , ethylstyrene claim 1 , t-butylstyrene claim 1 , chlorostyrene claim 1 , bromostyrene claim 1 , chloromethylstyrene claim 1 , or vinylnaphthalene claim 1 , or mixtures of these compounds.3. The process according to claim 1 , wherein the polyvinylaromatic compounds are divinylbenzene claim 1 , divinyltoluene claim 1 , or trivinylbenzene claim 1 , or mixtures of these compounds.4. The process according to at claim 1 , wherein the monovinylaromatic compound is styrene and the polyvinylaromatic compound is divinylbenzene.5. The process according to claim 1 , wherein R=H.6. The process according to claim 1 , wherein n=8 to 30.7. The process according to claim 1 , wherein the Friedel-Crafts catalysts are a mixture of iron(III) chloride and sulphuric acid.8. The process according to claim 8 , wherein the carboxylic anhydrides and carboxylic acids are a mixture of acetic anhydride and acetic acid.9. The process according to claim 8 , wherein a ratio of acetic anhydride to acetic acid is between 3:1 and 10:1.10. The process according to claim 1 , further comprising using the Friedel-Crafts catalyst in an amount of 1 to 5 mol per mole of compounds of the formula (I).11. The process according to claim 1 , further comprising using the compounds of the formula (I) in an amount of 0.001 to 0.05 mol per gram of bead polymer.12. The process according to claim 1 , further comprising using the carboxylic anhydrides in an amount of 1.5 to 4 mol per mole of compounds of the formula (I).13. The process according to claim 1 , further comprising using the compounds of the formula (I) in an amount of 0.01 to 0.05 mol per gram of compounds of the formula (II).14. The process according to claim 1 , further ...

METHOD AND APPARATUS FOR PRODUCING CHELATE RESIN, AND METHOD FOR PURIFYING TO-BE-TREATED LIQUID

Provided is a method for producing a chelate resin, wherein a highly pure treatment liquid can be obtained by reducing the amount of metal impurities in a to-be-treated liquid containing metal impurities. The method for producing a chelate resin comprises a purification step for purifying a to-be-purified chelate resin by bringing the chelate resin into contact with at least 5 wt % of a mineral acid solution containing 1 mg/L or less of metal impurities, wherein the total amount of metal impurities eluted when 3 wt % of hydrochloric acid is passed through the purified chelate resin in an amount equal to 25 times the amount of the chelate resin by volume ratio is 5 μm/mL-R or less. 1. A method for producing a chelate resin , comprising purifying a chelate resin that is to be purified by bringing a mineral acid solution having a metal impurities content of not more than 1 mg/L and a concentration of at least 5% by weight into contact with the chelate resin , whereina total amount of metal impurities eluted when hydrochloric acid having a concentration of 3% by weight is passed through the purified chelate resin in an amount equivalent to 25 times a volume of the chelate resin is not more than 5 μg/mL-R.2. The method for producing a chelate resin according to claim 1 , whereinamounts of sodium (Na), calcium (Ca), magnesium (Mg) and iron (Fe) in the mineral acid solution used during the purifying are each not more than 200 μg/L.3. The method for producing a chelate resin according to claim 1 ,further comprising, after the purifying, washing the chelate resin that has been brought into contact with the mineral acid solution with pure water or ultrapure water.4. The method for producing a chelate resin according to claim 1 , whereinthe chelate resin has aminomethyl phosphate groups or iminodiacetate groups as chelating groups.5. An apparatus for producing a chelate resin claim 1 , comprising a purification unit for purifying a chelate resin that is to be purified by ...

Resin beads and use in processing of aqueous solutions

A method of processing an aqueous solution, wherein the aqueous solution comprises one or more dissolved sugar, one or more dissolved sugar alcohol, or a mixture thereof, wherein the method comprises bringing the aqueous solution into contact with a collection of resin beads, wherein the resin beads comprise functional groups of structure (S1).

HELICAL SCREW ION EXCHANGE AND DESICCATION UNIT FOR NUCLEAR WATER TREATMENT SYSTEMS

Disclosed herein are systems, methods, processes, and apparatuses for treating radioactive waste, through systems designed to bind and dry radioactive media. In some of its various embodiments, the system includes at least one helical screw designed to receive and mix liquid wastes with ion exchange media, as well as convey the resulting slurry through one or more of a binding, dewatering, and drying/off-gassing region. 1. An ion exchange media conveyance system comprising: a first end;', 'a second end elevated relative to the first end;', 'a longitudinal axis extending from the first end to the second end;', 'an ion exchange media inlet passage disposed in the housing nearer the first end than the second end, the ion exchange media inlet configured to introduce ion exchange media into the inclined housing;', 'a water inlet passage disposed in the housing nearer the second end than the first end, the water inlet passage configured to introduce water into the inclined housing to form a slurry with the ion exchange media;', 'an ion exchange media outlet passage defined in the housing nearer the second end than the water inlet passage, the ion exchange media outlet passage configured to discharge the ion exchange media from the inclined housing; and', 'a water outlet passage defined in the housing nearer the first end than the second end, the water outlet passage configured to discharge the water from the inclined housing; and, 'an inclined housing including'}a helical screw disposed in the inclined housing and rotatable about the longitudinal axis, at least a portion of the helical screw including a ribbon screw configured to agitate the slurry and convey at least some of the ion exchange media toward the second end.2. The system of claim 1 , wherein the helical screw is rotatable relative to the inclined housing.3. The system of claim 1 , wherein the inclined housing is rotatable with the helical screw about the longitudinal axis.4. The system of claim 1 , wherein ...

Contaminate sequestering coatings and methods of using the same

Contaminate-sequestering coatings including a network of hydrolyzed silane compounds including a plurality of thiol functional groups, a plurality of fluorinated functionalities, or both are provided. The contaminate-sequestering coatings may sequester one or more per- and polyfluoroalkyl substances (PFAS), heavy metals, biological species or any combination thereof. Methods of functionalizing a substrate surface with contaminate-sequestering functionalities that sequester one or more PFAS, heavy metals, or both are also provided. Methods of removing contaminants from contaminate-containing liquids, and devices including the contaminate-sequestering coatings are also provided.

System and method of slurry treatment

Wastewater streams from semiconductor processing operations are treated to reduce the concentration therein of one or more metal species to a satisfactory level. The disclosed systems and technique utilize complexing ion exchange media to treat the wastewater streams having a significant concentration of oxidizing species.

Systems and methods of isolation of gallium-68

A process for the preparation of a carrier-free Ga-68 solution from an irradiated Zn target, systems comprising components used in the process, and compositions comprising Ga-68 prepared by the process. Purification of Ga-68 is carried out by feeding an irradiation target solution comprising Zn-68, Ga-68 and solid target assembly metals into a system comprising three chromatography columns in succession.

Particles for selective removal of metal complex anions from aq. soln. - has ion-pairing agent dispersed in aq. phase which is present in a gel or encapsulated

Particulate agent for selective removal of metal complex anions (I) from aq. soln. comprises an ionic, non-polymeric agent (II), able to form ion pairs with (I), dispersed in a continuous aq. phase which is embedded in a hydrophilic gel, and/or a component of such a gel and/or encapsulated in a water-insoluble, ion-permeable covering. specifically (II) is an amine salt of formulae (R1,R2NH2)+x- or (R1R2R3NH)+X-R11R2 and R3 = 6-20C alkyl (opt. substd. by OR4 or SR4) or aryl (esp phenyl) opt. substd. by 1-3 lower alkyl (esp. me), x = residue of organic or inorganic acid, pref. sulphale, nitrate or halide, esp. chloride. - The agent pref. comprises (by wt.) 0.5-30% gel. forming agent, 1-50% (II); 0-40(10-30)% water-insol. solvent; 0-10% auxiliaries and 40-90% water. Partic. the continuous aq phase is embedded in a thermally-crosslinked gel and encapsulated by a covalently-crosslinked gel. The particles are of dia. 0.1-6(esp. about 15)mm. USE/ADVANTAGE - The method is used to remove (I) for environments protection or recovery of )valuable metals. The particulate agent provides better selectively, ease of handling and efficiency companed with liq-liq extn. processes. The particles have high mechanical stability, provide a large exchange surface and are easily sped. from soln.

Particulate material suitable for selectively separating metal cations from aqueous solutions, process for its production, and use thereof

The invention relates to particulate material for separation of metal cations from aqueous solutions. These particles contain complexing agents dispersed in a continuous aqueous phase which is embedded in or is a constituent of a hydrophilic gel and/or is encapsulated by a water-insoluble, ion-permeable shell.

Process

Process

用于从羰基化工艺物流中除去催化剂金属和助催化剂金属的方法

一种用于从含有羰基化产物、VIII族羰基化催化剂金属和/或助催化剂金属、腐蚀金属和任选的碱金属或碱土金属的液体组合物中选择性地除去VIII族羰基化催化剂金属和/或助催化剂金属的方法。所述方法包括将所述液体组合物与一种具有硫脲官能团的螯合树脂接触。所述方法适用于处理在羧酸和/或羧酸酐的生产过程中得到的工艺物流。

How to remove corrosive metal contaminants from liquid compositions

부식 금속 오염물을 카르복실산 및 / 또는 그의 무수물, 로듐 카르보닐화 촉매, 및 카르보닐화 촉매 공 - 조촉매를 함유한 액체 조성물로 부터, 카르보닐화 촉매 및 공 - 조촉매 보다는 차라리 부식 금속 제거에 선택적인 킬레이트화 수지를 사용하여 제거한다. Corrosive metal contaminants are removed from the liquid composition containing the carboxylic acid and / or its anhydride, the rhodium carbonylation catalyst, and the carbonylation catalyst co-promoter rather than the carbonylation catalyst and the co-promoter. Remove using optional chelating resin.

Process for the removal of catalytic metals and promoter metals from carbonylation process streams

카르보닐화 생성물, VIII 족 카르보닐화 촉매 금속 및/또는 촉진제 금속, 부식 금속 및 임의적으로 알칼리 또는 알칼리토금속을 포함하는 액체 조성물로부터 VIII 족 카르보닐화 촉매 금속 및/또는 촉진제 금속의 선택적 제거 방법. 상기 방법에는 상기 액체 조성물을 티오우레아 관능기를 가진 킬레이트 수지와 접촉시키는 것이 포함된다. 상기 방법은 카르복실산 및/또는 카르복실산 무수물의 제조에서 수득된 프로세스 스트림 처리에 적합하다. A process for the selective removal of Group VIII carbonylation catalyst metals and / or promoter metals from a liquid composition comprising a carbonylation product, a Group VIII carbonylation catalyst metal and / or an accelerator metal, a corrosive metal and optionally an alkali or alkaline earth metal. The method includes contacting the liquid composition with a chelating resin having thiourea functionality. The process is suitable for process stream treatment obtained in the preparation of carboxylic acids and / or carboxylic anhydrides.

Способ удаления каталитических металлов и промоторных металлов из потоков процесса карбонилирования

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2006 144 807 (13) A (51) ÌÏÊ C07C 51/47 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2006144807/04, 22.04.2005 (71) Çà âèòåëü(è): ÁÏ ÊÅÌÈÊÝËÇ ËÈÌÈÒÅÄ (GB) (30) Êîíâåíöèîííûé ïðèîðèòåò: 19.05.2004 GB 0411185.2 (43) Äàòà ïóáëèêàöèè çà âêè: 27.06.2008 Áþë. ¹ 18 (72) Àâòîð(û): ÏÓË Ýíäðüþ Äåéâèä (GB), ÑÌÈÒ Ñòèâåí Äæåéìñ (GB) (87) Ïóáëèêàöè PCT: WO 2005/113479 (01.12.2005) (54) ÑÏÎÑÎÁ ÓÄÀËÅÍÈß ÊÀÒÀËÈÒÈ×ÅÑÊÈÕ ÌÅÒÀËËÎÂ È ÏÐÎÌÎÒÎÐÍÛÕ ÌÅÒÀËËΠÈÇ ÏÎÒÎÊΠÏÐÎÖÅÑÑÀ ÊÀÐÁÎÍÈËÈÐÎÂÀÍÈß R U (57) Ôîðìóëà èçîáðåòåíè 1. Ñïîñîá ñåëåêòèâíîãî óäàëåíè èðèäèåâîãî ìåòàëëà êàê êàòàëèçàòîðà êàðáîíèëèðîâàíè è/èëè ïðîìîòîðíûõ ìåòàëëîâ èç æèäêîé êîìïîçèöèè, âêëþ÷àþùåé ïðîäóêò êàðáîíèëèðîâàíè , èðèäèåâûé ìåòàëë êàê êàòàëèçàòîð êàðáîíèëèðîâàíè è/èëè ïðîìîòîðíûé ìåòàëë, êîððîäèðóþùèå ìåòàëëû è íåîá çàòåëüíî ùåëî÷íûå èëè ùåëî÷íîçåìåëüíûå ìåòàëëû, êîòîðûé âêëþ÷àåò êîíòàêòèðîâàíèå óïîì íóòîé æèäêîé êîìïîçèöèè ñ õåëàòîîáðàçóþùåé ñìîëîé äë óäàëåíè ïî ìåíüøåé ìåðå ÷àñòè èðèäèåâîãî ìåòàëëà êàê êàòàëèçàòîðà êàðáîíèëèðîâàíè è/èëè ïðîìîòîðíîãî ìåòàëëà, ñîäåðæàùèõñ â æèäêîé êîìïîçèöèè, è â êîòîðîì õåëàòîîáðàçóþùà ñìîëà âêëþ÷àåò ïî ìåíüøåé ìåðå îäíó òèîìî÷åâèíîâóþ ôóíêöèîíàëüíóþ ãðóïïó. 2. Ñïîñîá ïî ï.1, â êîòîðîì æèäêà êîìïîçèöè âêëþ÷àåò ùåëî÷íûå èëè ùåëî÷íîçåìåëüíûå ìåòàëëû. 3. Ñïîñîá ïî ï.2, â êîòîðîì ùåëî÷íîé ìåòàëë âûáèðàþò èç ëèòè , íàòðè è êàëè . 4 Ñïîñîá ïî ï.1, â êîòîðîì õåëàòîîáðàçóþùà ñìîëà îòâå÷àåò ôîðìóëå: â êîòîðîé Ð îáîçíà÷àåò õèìè÷åñêóþ ãëàâíóþ öåïü. 5. Ñïîñîá ïî ï.4, â êîòîðîì õèìè÷åñêà ãëàâíà öåïü Ð âë åòñ ïîëèìåðíîé. 6. Ñïîñîá ïî ï.5, â êîòîðîì ïîëèìåð âûáèðàþò èç ãðóïïû, âêëþ÷àþùåé ïîëèñòèðîë, Ñòðàíèöà: 1 RU A 2 0 0 6 1 4 4 8 0 7 A Àäðåñ äë ïåðåïèñêè: 101000, Ìîñêâà, Ì.Çëàòîóñòèíñêèé ïåð., 10, êâ.15, ÅÂÐÎÌÀÐÊÏÀÒ, ïàò.ïîâ. È.À.Âåñåëèöêîé, ðåã. ¹ 11 2 0 0 6 1 4 4 8 0 7 (86) Çà âêà PCT: GB 2005/001529 (22.04.2005) R U (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: ...

超纯水制造系统以及超纯水制造方法

一种超纯水制造系统，其依次包括预处理系统、一次纯水系统和二次纯水系统，一次纯水系统具备利用离子交换树脂对含硼的被处理水进行处理的离子交换装置，该离子交换装置包括：收容部，用于填充离子交换树脂；供给部，用于向收容部供给被处理水；以及排出部，用于从收容部排出处理水，在收容部中，分别将硼选择性离子交换树脂填充在供给部侧，将硼选择性离子交换树脂以外的离子交换树脂填充在排出部侧。根据该超纯水制造系统以及超纯水制造方法，能够在不对子系统施加TOC负荷的情况下，稳定地获得将硼低浓度化后的超纯水。

Method for complex purification of mine waters

FIELD: purification technology.SUBSTANCE: invention can be used in the technology of purifying mine water from copper, nickel, manganese and hardness salts to produce water for domestic and drinking purposes, up to the standards set for drinking water. Such method is carried out by complex multi-stage water purification process. In the first stage, mine water is filtered through load of quartz sand with a particle size of 0.8–2.0 mm, in the second stage, copper, nickel and manganese are recovered in three or more sorption filters by aminodiacetate ion exchanger with a flow rate of 5–10 specific volumes per loading of one filter. Then, mine water is treated with 20 % solution of sodium carbonate to pH of 6.5–8.5. After that, the resulting calcium and magnesium carbonates are removed in an ultrafiltration step and the purified water is disinfected with ultraviolet radiation.EFFECT: method provides for a comprehensive purification of mine water from polluting elements with a high removal efficiency of impurities.1 cl, 2 ex, 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 666 859 C2 (51) МПК C02F 1/28 (2006.01) C02F 1/42 (2006.01) B01J 45/00 (2006.01) C02F 101/10 (2006.01) C02F 103/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C02F 1/285 (2006.01); C02F 2001/425 (2006.01); B01J 45/00 (2006.01); C02F 2101/10 (2006.01); C02F 2103/10 (2006.01) (21)(22) Заявка: 2016147246, 01.12.2016 01.12.2016 Дата регистрации: 12.09.2018 (43) Дата публикации заявки: 01.06.2018 Бюл. № 16 (56) Список документов, цитированных в отчете о поиске: ЧЕРНЫЙ М.Л. Сорбционное 2 6 6 6 8 5 9 Адрес для переписки: 624091, Свердловская обл., г. Верхняя Пышма, пр. Успенский, 1, АО "Уралэлектромедь", технический отдел, Зверевой Е.В. извлечение редкоземельных и цветных металлов из шахтных вод и пульп. Автореферат диссертации на соискание ученой степени кандитата технических наук. Екатеринбург, 2005 г. RU 2430981 С1, 10.10.2011. ФРОГ Б.Н., ...

Polymer based permeable membrane for removal of ions

Molecularly imprinted polymer membranes for selectively collecting phosphate, nitrate and ferric ions are disclosed, prepared by copolymerizing a matrix monomer, cross-linking agent, ion imprinting complex, permeability agent and polymerization initiator, after which the ions of the ion imprinting complex are permeability agent are removed. The permeability agent creates channels in the membrane permitting the ion binding sites in the membrane to communicate with the exterior surface of the membrane

Improved method for stage eluation of loaded resin

FIELD: chemistry. SUBSTANCE: group of inventions relates to isolation of metal ions from liquids, suspensions or pulps. Contact of liquids, suspensions or pulps with resin, removing several metals is carried out in several successive tanks with mixer with obtaining loaded resin. Loaded resin is transferred into eluation column, eluent is added into eluation column from the top and passed through loaded resin with removal of several metals from loaded resin. Eluate from eluation column, which contains several metals, is passed though enrichment column, located successively relative to eluation column; eluate is separated in form of separate fractions with separation of several metals from each other. Device for realisation of said method is also claimed. EFFECT: provision of increased degree of metal separation. 8 cl, 4 dwg, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C22B 3/24 C22B 3/02 (13) 2 545 978 C2 (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012146244/02, 30.10.2012 (24) Дата начала отсчета срока действия патента: 30.10.2012 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): Дарил Дж. ГИШ (US), Чарлз Р. МАРСТОН (US), Маттью Л. РОДЖЕРС (US) 31.10.2011 US 61/553,675 (43) Дата публикации заявки: 10.05.2014 Бюл. № 13 R U (73) Патентообладатель(и): ДАУ ГЛОУБЛ ТЕКНОЛОДЖИЗ ЛЛК (US) (45) Опубликовано: 10.04.2015 Бюл. № 10 2 5 4 5 9 7 8 R U Адрес для переписки: 105082, Москва, Спартаковский пер., д. 2, стр. 1, секция 1, этаж 3, "ЕВРОМАРКПАТ" (54) УЛУЧШЕННЫЙ СПОСОБ СТАДИЙНОГО ЭЛЮИРОВАНИЯ НАГРУЖЕННОЙ СМОЛЫ (57) Реферат: Группа изобретений относится к выделению смолы. Элюат из элюационной колонны, ионов металлов из жидкостей, суспензий или содержащего несколько металлов, пропускают пульп. В нескольких последовательных баках с через обогатительную колонну, расположенную мешалкой осуществляют контактирование последовательно по отношению к элюационной жидкостей, суспензий или пульп ...

Method

Chelate-forming fibers, their production and use

Molecularly imprinted polymer granules for extraction of lithium, mercury and scandium

FIELD: molecularly imprinted polymers.SUBSTANCE: group of inventions relates to molecularly imprinted polymers, namely macroporous polymer granules for binding target molecules, methods for producing granules and methods for selective sequestration of one or more target ions from a solution of one or more target metal ions mixed with other ions. The set of macroporous polymer granules contains a copolymer having a set of complexing cavities that selectively bind Au(S2O3)23-, the copolymer being prepared from: (a) a cationic ligand monomer complexed with a non-metallic substitute ion selected from the group consisting of tetrathionate, pentathionate, hexathionate, hexadionate, heptyldionate, octyldionate, 1,4-phenylenediacetate, butanedisulfonate, pentanedisulfonate and hexanedisulfonate, (b) a non-ligand monomer and (c) a crosslinking monomer, the charge of the copolymer being opposite to the charge of the copolymer in the complexing cavity of the metal. In various embodiments, the granules are designed to bind scandium tricarbonate, Li+and Hg2+, while the copolymer can be obtained in particular from a cationic ligand monomer complexed with a tribasic salt of benzene-1,3,5-triyl tricarboxylate, complex 1-(4-vinylpyridin-2-yl) methanimine, optionally substituted with a C4-C24branched or unbranched alkyl group on the imine nitrogen atom, with Li+, and a complex of bis-4-vinylbenzyl dithiocarbamate Ca2+, where R is a C4-C24branched or unbranched alkyl group, respectively. The sequestration method includes first contacting the macroporous polymer granules with a stripping solution, whereby complexed ions are removed from the granules, and then contacting the cleaned granules with the solution.EFFECT: granules are characterized by high performance and low cost, yet they are highly selective and their production is safe and scalable.20 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) (19) RU (11) (13) 2 748 350 C2 (51) МПК B01J 20/ ...

Method for producing chelate resins

本发明涉及用于生产新颖的螯合树脂的一种方法，该树脂是基于自具有氨甲基基团和/或氨甲基氮杂环基团作为官能团的(甲基)丙烯酸化合物而产生的交联的珠状聚合物并具有高的吸收重金属的能力以及快速的动力学。

Metals removal from aqueous peroxy acid or peroxy salts

내용 없음. No content.

Mixed bed ion exchange resin comprising anion exchange resin and cation exchange resin, method for preparing the same and method for purifying hydrogen peroxide solution using the same

본 발명은 음이온 교환수지와 양이온 교환수지를 포함하는 혼상형 이온 교환수지, 이의 제조 방법 및 이를 이용한 과산화수소수의 정제 방법에 관한 것으로, 더욱 상세하게는, 산화제2주석의 알칼리 금속 착화합물이 흡착된, 중탄산 이온형으로 변환된 음이온 교환수지 또는 탄산 이온형 및 중탄산 이온형으로 변환된 음이온 교환수지와, 킬레이트 화합물이 흡착된, 수소 이온형으로 변환된 양이온 교환수지를 포함하여, 과산화수소 수용액 중에서도 정밀 전자 공업 분야(특히 고집적도의 반도체 기판 제조 등)에서 사용되는 초 고순도의 과산화수소를 제조할 수 있는 혼상형 이온 교환수지, 이의 제조 방법 및 이를 이용한 과산화수소수의 정제 방법에 관한 것이다. The present invention relates to a mixed-phase ion exchange resin comprising an anion exchange resin and a cation exchange resin, a method for producing the same, and a method for purifying hydrogen peroxide water using the same, and more particularly, to an alkali metal complex of stannous oxide adsorbed, Including an anion exchange resin converted to a bicarbonate ion type or an anion exchange resin converted to a carbonate ion type and bicarbonate ion type, and a cation exchange resin converted to a hydrogen ion type to which a chelate compound is adsorbed, the precision electronics industry among aqueous solutions of hydrogen peroxide It relates to a mixed-phase ion exchange resin capable of producing ultra-high purity hydrogen peroxide used in the field (especially for manufacturing high-density semiconductor substrates, etc.), a method for producing the same, and a method for purifying hydrogen peroxide solution using the same.

METHOD FOR TREATING A WATER FLOW FROM THE FISCHER-TROPH REACTION BY MEANS OF ION EXCHANGE RESIN

1. Способ обработки водного потока, поступающего из реакции Фишера-Тропша, включающий: ! - подачу водного потока, содержащего органические побочные продукты реакции, в дистилляционную или отпарную колонну; ! - отделение из колонны водного потока, обогащенного спиртами, содержащими от 1 до 8 атомов углерода, и другими возможными летучими соединениями; ! - подачу водного потока, содержащего органические кислоты, выходящего из нижней части дистилляционной колонны на стадию ионного обмена, где указанный водный поток приводят в контакт со слоем анионообменной смолы, и получение двух выходящих водных потоков: ! водного потока (i), обогащенного органическими кислотами, содержащими от 1 до 8 атомов углерода; ! очищенного водного потока (ii) с низким содержанием органических кислот. ! 2. Способ по п.1, в котором стадия ионного обмена включает два или более слоя анионообменной смолы, расположенных последовательно и/или параллельно, относительно течения обрабатываемого водного потока. ! 3. Способ по п.1, в котором водный поток, обогащенный спиртами, имеет концентрацию спиртов от 25 мас.% до 75 мас.%; водный поток (i), обогащенный органическими кислотами, имеет концентрацию органических кислот от 3 мас.% до 10 мас.% и очищенный водный поток (ii) с низкой концентрацией органических кислот имеет концентрацию органических кислот менее 0,0,1 мас.%. ! 4. Способ по п.1, в котором водный поток, поступающий из реакции Фишера-Тропша, сначала подают на стадию ионного обмена и очищенный водный поток (ii) с низким содержанием органических кислот, выходящий после стадии ионного обмена, подают в дистилляционную колонну. ! 5. Способ по п.1, в котором водный поток об� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 150 305 (13) A (51) МПК C02F 1/42 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (71) Заявитель(и): Эни С.п.А. (IT) (21)(22) Заявка: 2010150305/04, 28.05.2009 Приоритет(ы): (30) Конвенционный приоритет: 06.06.2008 IT MI2008A001035 (85) Дата начала ...

Method of producing ruthenium sorbent

FIELD: technological processes. SUBSTANCE: invention relates to production of sorbents for extracting metal ions from aqueous media. Disclosed is a method of producing a ruthenium sorbent, comprising performing a process of sorption of sulphide ions on granular macroporous anionite, followed by condensation of sorbed sulphide-ions with formaldehyde. At condensation step, thiourea is added with molar ratio of thiourea to formaldehyde of not less than 1:3. EFFECT: invention provides high degree of extraction of ruthenium in dynamic conditions of sorption. 1 cl, 8 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 605 255 C1 (51) МПК B01J 20/30 (2006.01) B01J 20/26 (2006.01) B01J 45/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2015141799/05, 22.01.2016 (24) Дата начала отсчета срока действия патента: 22.01.2016 (45) Опубликовано: 20.12.2016 Бюл. № 35 2 6 0 5 2 5 5 R U (54) СПОСОБ ПОЛУЧЕНИЯ СОРБЕНТА РУТЕНИЯ (57) Реферат: Изобретение относится к получению сульфид-ионов с формальдегидом. На стадии сорбентов для извлечения ионов металлов из конденсации вводят тиомочевину при мольном водных сред. Предложен способ получения отношении тиомочевины к формальдегиду не сорбента рутения, заключающийся в менее 1:3. Изобретение обеспечивает высокую осуществлении процесса сорбции сульфид-ионов степень извлечения рутения в динамических на гранулированном макропористом анионите с условиях сорбции. 8 пр. последующей конденсацией сорбированных Стр.: 1 C 1 C 1 Адрес для переписки: 119017, Москва, Б. Толмачевский пер., 5, стр. 1, АО"Гиредмет", ОСУЗ 2 6 0 5 2 5 5 (56) Список документов, цитированных в отчете о поиске: RU 2201983 C1, 10.04.2003. RU 2081130 C1, 10.06.1997. RU 2370763 C1, 20.10.2009. RU 2230034 C2, 10.06.2004. ЛОСЕВ В.Н. и др., Сорбция рутения силикагелями, химически модифицированными меркапто- и дисульфидными группами, ЖНХ, 2005, т.50, 4, с.640-644. (73) Патентообладатель(и): Акционерное общество " ...

Method of removing iodide compound from organic acid

FIELD: chemistry. SUBSTANCE: invention relates to a method of increasing utilisation factor of silver during adsorption and removal of decyl iodide from acetic acid which contains decyl iodide as an impurity, by passing acetic acid through a packed layer of a cation-exchange resin at temperature 50°C or lower, where the cation-exchange resin is a macroporous-type polystyrene resin with average particle size ranging from 0.3 to 0.6 mm and average pore size from 15 to 28 nm, and where the resin has sulpho groups, and silver occupies 40-60% of the active sites of sulpho groups. EFFECT: high utilisation factor of silver during adsorption and removal of decyl iodide from acetic acid. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 440 968 (13) C2 (51) МПК C07C B01J B01J B01J C07C C07C ФЕДЕРАЛЬНАЯ СЛУЖБА B01J ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ C07C (12) ОПИСАНИЕ 51/54 31/08 39/04 39/18 51/47 53/08 31/06 51/42 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009115647/04, 29.06.2007 (24) Дата начала отсчета срока действия патента: 29.06.2007 (73) Патентообладатель(и): ТИЙОДА КОРПОРЕЙШН (JP) (43) Дата публикации заявки: 10.11.2010 Бюл. № 31 C 2 2 4 4 0 9 6 8 C 2 R U (56) Список документов, цитированных в отчете о поиске: US 5801279 А, 01.09.1998. US 4615806 А, 07.10.1986. ЕР 0484020 А2, 06.05.1992. ЕР 0296584 А2, 28.12.1988. ЕР 0687662 А2, 20.12.1995. WO 00/56454 А1, 28.08.2000. ЕР 0535605 А2, 07.04.1993. ТУ У 02071045-00198 «Смолы ионообменные. Катиониты. Требования к качеству катионитов производства компании Rohm and Haas». (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.04.2009 (86) Заявка PCT: JP 2007/063513 (29.06.2007) (87) Публикация заявки РСТ: WO 2008/038446 (03.04.2008) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", Е.Е.Назиной (54) СПОСОБ УДАЛЕНИЯ ЙОДИДНОГО СОЕДИНЕНИЯ ИЗ ОРГАНИЧЕСКОЙ КИСЛОТЫ (57) Реферат: Изобретение ...

Method for producing chelate resins

本发明涉及用于生产新颖的螯合树脂的一种方法，该树脂是基于自具有氨甲基基团和/或氨甲基氮杂环基团作为官能团的(甲基)丙烯酸化合物而产生的交联的珠状聚合物并具有高的吸收重金属的能力以及快速的动力学。

Method of generating metal chelating affinity ligands

本发明涉及制备多配位基的金属螯合亲合配体的方法，该方法包括如下步骤：提供一种包含羰基、毗连的硫和亲核体的环状支架；在每个支架上通过该亲核体的衍生提供多配位基的金属螯合亲合配体臂；通过加入试剂使支架开环而将多个金属螯合亲合配体臂加到支架上；和如果需要的话，将所得到的配体臂的官能团去保护。在本方法最优选的实施方案中，开环和去保护步骤在同一步中进行。

Method of removing catalytic metals and promoter metals from carbonylation process streams

FIELD: chemistry. ^ SUBSTANCE: description is given of a method of selective removal of catalytic group VIII metals and carbonylation promoter metals from liquid compositions, containing carbonylation product, catalytic group VIII metals and carbonylation promoter metals, corrosion metals and optionally alkali or alkali-earth metals. The method involves bringing the said liquid composition into contact with a chelating resin to remove at least part of the iridium as a carbonylation catalyst and promoter metal contained in the liquid composition and wherein the chelating resin contains at least one thiourea functional group. The method is suitable for treating process streams obtained in the production of carboxylic acids and/or carboxylic acid anhydrides. ^ EFFECT: removal of catalytic metals and promoter metals mainly before corrosion metals from carbonylation process streams. ^ 24 cl, 2 ex, 2 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 378 247 (13) C2 (51) МПК C07C 51/47 (2006.01) B01J 45/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2006144807/04, 22.04.2005 (24) Дата начала отсчета срока действия патента: 22.04.2005 (72) Автор(ы): ПУЛ Эндрью Дейвид (GB), СМИТ Стивен Джеймс (GB) (43) Дата публикации заявки: 27.06.2008 2 3 7 8 2 4 7 (45) Опубликовано: 10.01.2010 Бюл. № 1 (56) Список документов, цитированных в отчете о поиске: RU 1160684 A1, 27.01.1996. RU 2118204 C1, 27.08.1998. EP 0618185 A, 05.10.1994. EP 0482787 A, 29.04.1992. US 6329435 B1, 11.12.2001. US 3716626 A, 13.02.1973. 2 3 7 8 2 4 7 R U (86) Заявка PCT: GB 2005/001529 (22.04.2005) C 2 C 2 (85) Дата перевода заявки PCT на национальную фазу: 19.12.2006 (87) Публикация PCT: WO 2005/113479 (01.12.2005) Адрес для переписки: 101000, Москва, М.Златоустинский пер., 10, кв.15, "ЕВРОМАРКПАТ", пат.пов. И.А.Веселицкой, рег. № 11 (54) СПОСОБ УДАЛЕНИЯ КАТАЛИТИЧЕСКИХ МЕТАЛЛОВ И ПРОМОТОРНЫХ МЕТАЛЛОВ ИЗ ПОТОКОВ ПРОЦЕССА ...

Method of producing complex-forming sorbent for selective extraction of sum of rare-earth metals

FIELD: technological processes. SUBSTANCE: invention relates to production of sorbents. Disclosed method of preparation involves preliminary preparation of an oligomer mixture by treating ethylenediamine with calcium hypophosphite and formalin in a hydrochloric acid medium followed by formation of spherical granules of sorbent by dispersion of obtained oligomer mixture in medium of oleic acid at high temperature. Produced product spherical granules are washed from residues of dispersion medium with acetone, then with water, alkali and acid. Reaction is carried out in two steps: at first step, oligomer mixture is obtained by reacting initial reagents: aliphatic polyamine, calcium hypophosphite, formalin, hydrochloric acid in molar ratio of 1:0.75:4:5–1:1.25:4:5, respectively, at temperature of 25–35 °C, from which at second stage by dispersing in oleic acid medium at 40–60 °C spherical granules of sorbent are obtained. Temperature is then increased to 70 °C and final holding is carried out at temperature of 100 °C. Time of holding granules at each temperature is 1 hour. Further, the sorbent granules are separated from the dispersion medium. EFFECT: technical result consists in obtaining a sorbent with high capacitance and selectivity to rare-earth metals, low swelling. 1 cl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 695 064 C1 (51) МПК C08F 8/40 (2006.01) B01J 45/00 (2006.01) B01J 20/26 (2006.01) B01J 20/30 (2006.01) B01J 39/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C08F 8/40 (2019.05); B01J 45/00 (2019.05); B01J 20/28019 (2019.05); B01J 20/267 (2019.05); B01J 20/3028 (2019.05); B01J 20/3085 (2019.05); B01J 39/18 (2019.05) (21)(22) Заявка: 2018147623, 29.12.2018 29.12.2018 (73) Патентообладатель(и): АО "Аксион - Редкие и Драгоценные Металлы" (RU) Дата регистрации: 19.07.2019 (56) Список документов, цитированных в отчете о поиске: SU 575363 A1, 05.10.1977. RU 2607215 C1, 10.01.2017. RU 2515455 C2 ...

How to remove corrosive metal contaminants from liquid compositions

부식 금속 오염물을 카르복실산 및/또는 그의 무수물, 로듐 카르보닐화 촉매, 및 카르보닐화 촉매 공-조촉매를 함유한 액체 조성물로부터, 카르복닐화 촉매 및 공-조촉매 보다는 차리리 부식 금속 제거에 선택적인 킬레이트화 수지를 사용하여 제거한다.

Method for preparing ion exchange resin with reduced metal impurity content

본 발명은 금속 불순물 함량이 감소된 이온 교환수지의 제조방법에 관한 것으로, 더욱 상세하게는, 금속 이온의 함유량이 극히 적고 총 유기탄소(TOC) 용출이 낮으며, 비저항 값이 우수하여 반도체용 초순수의 제조에 사용되는 이온 교환수지를 제조하는 방법에 관한 것이다. The present invention relates to a method for manufacturing an ion exchange resin with reduced metal impurity content, and more particularly, ultrapure water for semiconductors due to its extremely low content of metal ions, low total organic carbon (TOC) elution, and excellent resistivity. It relates to a method for preparing an ion exchange resin used in the manufacture of

Method of producing sorbent for selective extraction of scandium ions

FIELD: chemistry. SUBSTANCE: invention relates to a method of producing a sorbent for selective extraction of scandium ions. The method includes a step for acylation of a styrene and divinylbenzene copolymer with acetylchloride in dichloroethane solution in the presence of anhydrous aluminium chloride, washing and drying, a step for phosphorylation of the acylation product with phosphorus trichloride, a step for hydrolysis with ice water and final washing of the end product. The starting copolymer used is a macroporous copolymer of styrene and divinylbenzene. Acylation is carried out at the boiling point of the acetyl chloride solution. Phosphorylation is carried out by first holding the reaction mass at room temperature and then adding glacial acetic acid and further holding the reaction mass while stirring. EFFECT: obtaining a complexing sorbent which is highly selective to scandium and improved process. 4 cl, 1 tbl, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B01J 20/30 C08F 8/10 C08F 8/40 C08F 212/08 C08F 212/36 (13) 2 531 916 C1 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013119306/04, 26.04.2013 (24) Дата начала отсчета срока действия патента: 26.04.2013 (45) Опубликовано: 27.10.2014 Бюл. № 30 (56) Список документов, цитированных в отчете о поиске: SU 280839 A1, 03.09.1970. MARHOL (73) Патентообладатель(и): Закрытое акционерное общество "АксионРедкие и Драгоценные Металлы" (RU) 2 5 3 1 9 1 6 R U (54) СПОСОБ ПОЛУЧЕНИЯ СОРБЕНТА ДЛЯ СЕЛЕКТИВНОГО ИЗВЛЕЧЕНИЯ ИОНОВ СКАНДИЯ (57) Реферат: Изобретение относится к способу получения дивинилбензолом. Ацилирование осуществляют сорбента для селективного извлечения ионов при температуре кипения раствора хлористого скандия. Способ включает стадию ацилирования ацетила. Фосфорилирование проводят путем сополимера стирола с дивинилбензолом предварительной выдержки реакционной массы хлористым ацетилом в растворе ...

Process for production of carboxylic acid or anhydrides thereof

羰基化生产羧酸和/或其酸酐的方法。包括应用对于除掉腐蚀金属有选择性而对羰基化催化剂及其辅助催化剂非选择性的螯合树脂，从含有羧酸和/或其酸酐、铑羰基化催化剂、羰基化催化剂的辅助催化剂的液体组合物中除掉腐蚀金属污染物，并将得到的液体组合物再循环至羰基化反应。

MOLECULAR-IMPRINTED POLYMER GRANULES FOR EXTRACTION OF LITHIUM, MERCURY AND SCANDIUM

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 115 932 A (51) МПК B01J 20/26 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019115932, 03.11.2017 (71) Заявитель(и): 6С ВЭЙВ ИННОВЭЙШНС КОРП. (US) Приоритет(ы): (30) Конвенционный приоритет: 03.11.2016 US 62/417,164 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.06.2019 R U (43) Дата публикации заявки: 03.12.2020 Бюл. № 34 (72) Автор(ы): САУТАРД, Глен Э. (US), ГЛЮКМАН, Джонатан П. (US) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2018/085626 (11.05.2018) R U (54) МОЛЕКУЛЯРНО-ИМПРИНТИРОВАННЫЕ ПОЛИМЕРНЫЕ ГРАНУЛЫ ДЛЯ ЭКСТРАКЦИИ ЛИТИЯ, РТУТИ И СКАНДИЯ (57) Формула изобретения 1. Множество макропористых полимерных гранул, содержащих сополимер, имеющий множество комплексообразующих полостей, которые селективно связывают Au(S2O3)23-, причем сополимер получен из: (a) мономера катионного лиганда, связанного в комплекс с неметаллическим заменяющим ионом выбранным из группы, состоящей из тетратионата, пентатионата, гексатионата; гексадионата, гептилдионата, октилдионата; 1,4-фенилендиацетата; бутандисульфоната, пентандисульфоната и гександисульфоната, (b) нелигандного мономера и (c) сшивающего мономера; причем заряд сополимера в комплексообразующей полости противоположен заряду целевого иона металла. 2. Множество макропористых полимерных гранул, содержащих сополимер, имеющий множество комплексообразующих полостей, которые селективно связывают трикарбонат скандия, причем сополимер получен из: (a) мономера катионного лиганда, связанного в комплекс с трехосновной солью бензол-1,3,5-триил-трикарбоксилатом, (b) нелигандного мономера и (c) сшивающего мономера; причем заряд сополимера в комплексообразующей полости противоположен заряду Стр.: 1 A 2 0 1 9 1 1 5 9 3 2 A Адрес для переписки: 190000, Санкт-Петербург, БОКС-1125 2 0 1 9 1 1 5 9 3 2 US 2017/059870 (03.11.2017) 2 0 1 9 1 1 5 9 3 2 R U с Li+, (b) необязательного нелигандного мономера и (c) сшивающего ...

Preparation of organic aggregating agent concluding al salt or fe salt

본 발명은 키틴(키틴) 또는 치토산(키토산)을 N-카르복시메틸화(N(carbowymethyl)) 하여 수용성으로 제조한 다음 분자량 12,000-25,000 범위의 Low-molecular-weight 키틴 또는 치토산으로 조정한 후, 이 분말을 아세톤으로 세척하여 이물질을 제거하고, 풍건한 다음 키틴 또는 치토산 20.5kg을 40배(중량비)의 15% 염산수용액에 용해시켜 염화키틴 또는 염화치토산 분말을 얻은 후, 응축기와 교반기가 부설된 반응조에 염화키틴 또는 염화치토산 10.5kg을 장입하고 질량비로 1/2량인 5.25kg의 펜탄디알(pentanedial)을 동시에 장입하여 25-50℃에서 2시간동안 교반하고, 교반이 끝나면 다시 DCDA(dicyandiamide) 27.10kg, 염화암모늄 17.20kg, CH 2 O 52.7㎏을 장입한 후 90℃에서 2시간 축합반응을 시키고, 상기 축합반응이 완료되면 Fe 2 O 3 로서 30%의 염화2철 수용액 30-40kg 또는 A1Cl 3 로서 10%의 염화알루미늄 수용액 120-130kg이나 PAC(Poly Aluminum Chloride의 약자) 100-110kg 중 어느 하나를 택일하여 장입하고 pH를 3-3.5으로 조정한 후, 반응온도 80-90℃에서 2시간이상 교반하고 반응종료는 25℃에서 폴리머용액(Polymer Solution)의 굴절율이 nD 20 1.52023, 이나 nD 23 1.51020으로 하고 점도는 1.446 cps (15℃), 1.110 cps (30℃) 0.659 cps (70℃)의 값을 측정해서 결정하여 제조되는 유기응집제의 합성방법에 관한 것이다. The present invention is prepared by water-soluble chitin (chitin) or chitosan (chitosan) by N-carboxymethylated (N (carbowymethyl)) and then adjusted to low-molecular-weight chitin or chitosan in the molecular weight range of 12,000-25,000, The powder was washed with acetone to remove foreign substances, air-dried, and 20.5 kg of chitin or chitosan was dissolved in 40 times (15% by weight) aqueous 15% hydrochloric acid solution to obtain chitin chloride or chitosan chloride powder. Charge 10.5 kg of chitin chloride or chitosan chloride in the installed reactor, load 5.25 kg of pentanal (half amount) in half by mass ratio, and stir at 25-50 ° C. for 2 hours. dicyandiamide) charged with 27.10kg, ammonium chloride 17.20kg, CH 2 O 52.7kg, followed by condensation reaction at 90 ° C. for 2 hours, and when the condensation reaction is completed, 30% 40% ferric chloride solution as Fe 2 O 3 or A1Cl of 10% as Al chloride 3 Charge either 120-130kg of aqueous aluminum solution or 100-110kg of PAC (abbreviation of Poly Aluminum Chloride) and adjust the pH to 3-3.5, and then stir at reaction temperature of 80-90 ℃ for 2 hours or more. The refractive index of the polymer solution at ...

Insoluble, only slightly swellable polymers with modified amino groups, process for their preparation and their use

The invention concerns insoluble polymers which can swell only slightly and contain units of formula (I) and/or (II), in which R<1> is H, C1-C6 alkyl; R<2>, R<3> are H, C1-C20 alkyl, aryl, aralkyl; and ME is H, alkali metal, alkaline earth metal or ammonium equivalent. The invention also concerns processes for preparing these polymers by reacting insoluble polymers which can only swell slightly and contain units of formula (III), in which R<1> is H or C1-C6 alkyl, with (1) alpha -haloacids or their alkali metal, alkaline earth metal or ammonium salts, or (2) aldehydes and hydrogen cyanide or alkali cyanide, or cyanohydrins comprising aldehydes and alkali cyanide, and hydrolyzing the adducts. The invention further concerns the use of these polymers as adsorber resin for metallic ions and as ion exchangers.

Insoluble polymers which can swell only slightly with modified amino groups, processes for their preparation, and their use

The invention concerns insoluble polymers which can swell only slightly and contain units of formula (I) and/or (II), in which R1 is H, C¿1?-C6 alkyl; R?2, R3¿ are H, C¿1?-C20 alkyl, aryl, aralkyl; and ME is H, alkali metal, alkaline earth metal or ammonium equivalent. The invention also concerns processes for preparing these polymers by reacting insoluble polymers which can only swell slightly and contain units of formula (III), in which R?1¿ is H or C¿1?-C6 alkyl, with (1) α-haloacids or their alkali metal, alkaline earth metal or ammonium salts, or (2) aldehydes and hydrogen cyanide or alkali cyanide, or cyanohydrins comprising aldehydes and alkali cyanide, and hydrolyzing the adducts. The invention further concerns the use of these polymers as adsorber resin for metallic ions and as ion exchangers.

Patent DE3536397C2

Method of obtaining lithium concentrate from lithium-bearing natural brines and processing thereof into lithium chloride or lithium carbonate

FIELD: chemistry. SUBSTANCE: invention can be used in chemical industry. Method for obtaining a lithium concentrate from natural lithium brines and processing said concentrate into lithium chloride or lithium carbonate comprises preparation of a primary lithium concentrate from a natural lithium brine by sorption enrichment of the natural lithium brine in sorption-desorption modules consisting of columns filled with a fixed bed of a granular sorbent based on chlorine-containing varieties of a double hydroxide of aluminum and lithium. Primary lithium concentrate is converted to a secondary lithium concentrate by concentration in evaporative pools or reverse-osmotic concentration-desalination. Secondary lithium concentrate is used for further production of lithium chloride or lithium carbonate. EFFECT: invention increases recovery of lithium chloride during sorption enrichment of natural lithium brines, improves the quality of lithium chloride and lithium carbonate obtained, widens the range of lithium-bearing hydromineral raw materials suitable for the production of lithium compounds, by using lithium-bearing natural brines containing suspended particles. 4 cl, 4 dwg, 7 tbl, 8 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 659 968 C1 (51) МПК C01D 15/04 (2006.01) C01D 15/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C01D 15/04 (2006.01); C01D 15/08 (2006.01); B01J 47/00 (2006.01) (21)(22) Заявка: 2017113039, 14.04.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 04.07.2018 (45) Опубликовано: 04.07.2018 Бюл. № 19 Адрес для переписки: 630075, г. Новосибирск 75, ул. Б. Хмельницкого, 2, ООО "Экостар-Наутех" (73) Патентообладатель(и): Общество с ограниченной ответственностью (ООО) "Экостар-Наутех" (RU) (56) Список документов, цитированных в отчете о поиске: RU 2516538 C2, 20.05.2014. RU C 1 2 6 5 9 9 6 8 R U (54) Способ получения литиевого концентрата из литиеносных природных рассолов и ...

Recovery of ammoniacal copper with novel organogels

There is disclosed novel copper ion-exchange media and processes for the recovery of cupric ion from ammoniacal copper solutions and for the recovery of spent printed circuit board etchant. The novel ion-exchange media comprise hydrophobic nonporous polymer plasticized and swollen with a monomeric organic liquid copper ion-exchange agent such as beta-diketones or hydroxyoximes. A novel copper ion-complexing agent, 1-n-octylphenyl-p-1,3-butanedione, is also disclosed. The processes essentially comprise contacting the ammoniacal cuprix ion-containing solution or spent etchant with the novel copper ion-exchange media to extract copper in cupric ion form. Copper can be recovered therefrom by conventional methods such as acid stripping and electrowinning.

Gel-type chelating resins and a process for removal of multivalent, alkaline earth or heavy metal cations from solutions

Improved processes for the removal from solution of multi-valent alkaline earth metal and/or heavy metal cations are taught, having excellent combinations of cation capacity and resistance to bead breakage. The processes use specified polymer resin beads functionalized with chelating functionalities such as alkylaminophosphonic moieities or iminodiacetic acid moieites. The beads are prepared by the specified process to have a decreased amount of cross-linking in the shell area as compared to the core. An additional aspect of the invention is an improved gel-type chelating resin having core-shell morphology and alkylaminophosphonic functional groups which is found to exhibit surprising combinations of dynamic capacity, osmotic shock resistance, and physical strength. This chelating resin has been found to be very suitable for the removal of calcium from brine solutions prior to the use of such solutions in membrane electrolysis cells for chlorine production.

Shell functionalized ion exchange resins

The present invention relates to a method for the production of improved shell functionalized ion exchange resins from core/shell copolymer having a highly crosslinked core.