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JP07118338 |
PURPOSE: To produce an anion exchange resin which scarcely decreases in its adsorptive capacity and forms very few carboxyl groups in the resin even after repeated use/regeneration cycles and has excellent durability. CONSTITUTION: The p...
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JP07053634 |
PURPOSE: To obtain the subject ion exchange resin having both specified phosphorus content and cation exchange capacity, capable of selectively adsorbing lithium ion, excellent in highly selective adsorptivity, thus useful as a solid cat...
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JP07010926 |
PURPOSE: To provide a process for preparing a calcium salt form of chelating resin without requiring any post-treatment of waste water resulting from production thereof, whereby a liquid treated with the resulting resin is also close to ...
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JP07002722 |
PURPOSE: To remove corrosion metal contaminants from a liquid composition comprising a carboxylic acid (anhydride) by bringing the composition into contact with a chelating resin selective for the retention of corrosion metals. CONSTITUT...
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JP07000831 |
PURPOSE: To enhance the adsorptive properties of iron ion contained in an aqueous solution of an inorganic salt by bringing the solution into contact with a chelate resin having a functional group shown by a specific formula. CONSTITUTIO...
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JP06346165 |
PURPOSE: To easily refine uranium contg. molybdenum and to produce an yellow cake satisfying the specifications by bringing a uranium exudation liquid contg. molybdenum into contact with a chelating resin contg. a specified group. CONSTI...
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JP06298529 |
PURPOSE: To provide a process for removing nickel and cobalt from an aluminum solution containing traces of nickel, cobalt, etc. CONSTITUTION: An aluminum solution containing nickel, cobalt, etc., is made to contact with a sulfurizing ag...
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JP06128321 |
PURPOSE: To remove multivalent metals including Fe, Cr, Cu, Co and Ca from a soln. of a resist component soln. or a resist compsn. soln. by bringing the soln. into contact with a chelate resin. CONSTITUTION: The chelate resin is a chemic...
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JP06108169 |
PURPOSE: To recover metals of high purity by chromatographic sepn. by adsorbing anionic complexes of transition metal ions on an anion exchange resin, then lowering the complexing agent concn. in the soln. in accordance with different co...
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JP06017153 |
PURPOSE: To easily and economically recover metals from an org. complex contg. the metals by treating the org. complex with a weakly acidic aq. soln. of the chloride of alkaline metals or alkaline earth metals of a specific concn. CONSTI...
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JP05261280 |
PURPOSE: To prepare a hydrophilic polymer product for bonding and adsorption of metal ions with a structure: P-X-A-Q (P is a hydrophilic polymer, X is a heteroatom of O, S or N, A is an atom sequence, and Q is a group having branches wit...
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JP05239236 |
PURPOSE: To obtain resins having improved exchange kinetics, which comprise crosslinked copolymers having weak base exchange moieties and hydrophilic strong-base exchange moieties that are respectively substituted at specified two sites....
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JP05212382 |
PURPOSE: To provide a method for selectively reducing the content of a heavy metal in a waste stream to sub-ppm level in the removal of a heavy metallic ion from the waste stream containing a complex anion. CONSTITUTION: An ion exchange ...
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JP05201964 |
PURPOSE: To remove transition metals and to separate an aq. purified soln. which is decreased in the concn. of transition metal ions by bringing an aq. soln. of peroxy acid or its acid into contact with an ion exchange resin having chela...
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JP05200315 |
PURPOSE: To obtain a novel cation exchanger for liquid chromatography by incorporating boric acid and/or its salt as a complex form in a hydroxyl group- contg. matrix. CONSTITUTION: Comlexed boric acid is used as a cation exchanger for l...
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JP05186215 |
PURPOSE: To improve the purification efficiency by adding an aqueous solution of NaHCO3 to a crude aqueous solution of NaCl, carrying out the precise filtration and then treating the resultant filtrate with chelate resins. CONSTITUTION: ...
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JP05138046 |
PURPOSE: To provide a phosphonate type chelate resin having high exchange capacity and cycle strength. CONSTITUTION: A phosphonate type styrenic chelate resin having a -CH2PO3H2 group with a specific surface area of 10-100m2/g, a pore vo...
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JP05138163 |
PURPOSE: To selectively remove a trivalent metal ion from a strong acidic solution containing trivalent metal ion and other valent metal ions by using phosphonic acid type chelate resin. CONSTITUTION: This method is characterized by brin...
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JP05132565 |
PURPOSE: To provide a relatively simple process for converting nonuniform-size copolymer beads into an ion exchange resin showing a relatively narrow particle size distribution. CONSTITUTION: There is provided a process for producing an ...
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JP05111637 |
PURPOSE: To provide a production method of an adsorbent which can selectively adsorb and desorb heavy metal ions such as cobalt, nickel, mercury, copper, etc., dissolving in minute amts. in water for water processing and can easily be tr...
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JP05057280 |
PURPOSE: To provide a removing method of heavy metals contained in a water to be treated by allowing the heavy metals to bring into contact with a vibrous chelate high molecular compd. CONSTITUTION: The compd. consists of a fibrous chela...
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JP05032599 |
PURPOSE: To efficiently separate and purify an amino acid useful as foods, feeds, medicines, etc., in high purity by bringing a metallic ion-coordinated fine resin having a specific average particle diameter with an aqueous solution of a...
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JP05025560 |
PURPOSE: To remove Ni from waste liquids of various forms down to a residual content further lower than the reference value regulated by laws and ordinances by specifying operation and cation exchanger system at the time of recovering th...
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JP05004006 |
PURPOSE: To provide a process for removing organic cations from polar fluids to a quite low level. CONSTITUTION: Cationic org. impurities such as quat. sulfonium ions, quat. ammonium compounds and phosphonium compounds are removed effect...
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JP04305255 |
PURPOSE: To remove desired ions from a source soln. containing larger concn. of other ions including H+ by allowing the source soln. to contact with a compd. containing the polytetraalkylammonium and/or polytrialkylamine containing the l...
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JP04260448 |
PURPOSE: To quantitatively separate and concentrate a desired molecule or ion such as a gas, an anion, an amino acid or the like from an original solution containing other molecule in a higher concentration. CONSTITUTION: By bringing an ...
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JP04239006 |
PURPOSE: To provide a method for preparing a phosphoric acid-type chelate resin for adsorbing an uranyl ion. CONSTITUTION: Suspension polymerization is done in the presence of bis(2- chloroethyl)vinylphosphonate having structure converti...
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JP04228599 |
PURPOSE: To develop a method for regenerating a tervalent chrome plating bath soln. which does not require the use of a settling agent. CONSTITUTION: A plating bath 10 is in a flow state with an ion exchange bed 12. A plating soln. is pe...
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JP04224568 |
PURPOSE: To obtain a new cyclic polyetherdiamide compound having a coordination ability which is selective to a calcium ion and useful as a film-like calcium electrode. CONSTITUTION: A cyclic polyetherdiamide compound (e.g. a compound ex...
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JP04197435 |
PURPOSE: To obtain an adsorbent capable of efficiently removing aldehydes and usable repeatedly by bonding an amino compound having a primary or secondary amino group to an ion exchange resin having an acidic group by an ionic bond. CONS...
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JP04171050 |
PURPOSE: To obtain a resin selectively adsorbing trivalent iron ions by forming spaces of a giant reticulate structure type to a chelate resin having a phosphine group and/or a phosphone group. CONSTITUTION: Three-dimensional spaces of a...
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JP04166236 |
PURPOSE: To obtain an adsorbent having high metal adsorptivity which can adsorb ions from liquid of rather low pH by substituting carboxymethyl groups for hydrogen of aimino groups in chitosan. CONSTITUTION: The chitosan is obtained by h...
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JP04119920 |
PURPOSE: To efficiently recover As in an As-contg. soln. by bringing the soln. into contact with a specified chelate resin. CONSTITUTION: An As-contg. soln. is brought into contact with a chelate resin having polyamino groups or amino-po...
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JP04120187 |
PURPOSE: To suppress copper plating pnenomena at a sliding part such as a bearing of a refrigerating compressor and to prolong the life of a, refrigerating compressor by arranging a specific cation exchange resin in a flow channel of ref...
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JP04118092 |
PURPOSE: To easily and efficiently remove dissolved oxygen to an extremely low concn. by bringing the water contg. oxygen into contact with a chelating resin carrying an easily oxidative metal and having a specified functional group in t...
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JP04118093 |
PURPOSE: To efficiently remove dissolved oxygen even without the coexistence of hydrogen or a hydrogen generating compd. by obtaining a free-oxygen absorber from a chelating resin having a specified chalating group and carrying an easily...
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JP04071681 |
PURPOSE: To simply and efficiently remove dissolved oxygen in water until very low concn. is attained by bringing the water into contact with a chelate resin having aminocarboxylic acid groups supporting copper and/or aminoalkylenephosph...
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JP04022439 |
PURPOSE: To absorb and remove a metal ion by bringing a metal ion-containing org. compound into contact with a chelate resin having an aminocarboxylic acid group and/or an iminocarboxylic acid group. CONSTITUTION: As a chelate resin, a r...
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JP03274458 |
PURPOSE: To rapidly adsorb, concentrate and separate an ion with high selectivity and high collection capacity by using a 2-hydroxyacetophenone type chelate resin obtained by template synthesis as a packing agent for liquid chromatograph...
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JP03262531 |
PURPOSE: To obtain an adsorbing substance advantagenously recovering a noble metal by using a chitosan derivative wherein one of the hydrogen atoms of the amino group at the C2-position of chitosan is substituted with a hydrocarbon chain...
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JP03245100 |
PURPOSE: To separate effectively multi-valence metals from a solution liquid by touching an ion exchanger which contains at least one phosphorus atom in the ion exchanging radical, to a solution liquid which contains metallic ions. CONST...
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JP03244374 |
PURPOSE: To effectively reduce the subject miscellaneous tastes and odors without substantially reducing red color peculiar to 'BENIKOJISEISYU' by treating 'BENIKOJISEISYU' with a specified ion-exchange resin. CONSTITUTION: A commercial ...
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JP03210340 |
PURPOSE: To obtain an ion exchange resin excellent in capacity of removing noble metals from a chemical treatment fluid by selecting an ion exchange resin having a specified functionality. CONSTITUTION: An ion exchange resin produced fro...
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JP03197485 |
PURPOSE: To concentrate and recover desired ions from a mixture with the other ions, by bringing an original solution into contact with a specific compound to form a complex, and after separation of the original solution bringing the com...
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JP03190827 |
PURPOSE: To obtain an optical isomer separating agent having good reappearance and excellent separation ability by fixing a chemically active peptide having a carboxylic group at one end and having a primary or secondary amino group at t...
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JP03188048 |
NEW MATERIAL: Compounds of formula I [R1, R2 and R5 are each H, alkyl; R3 and R4 are each H, alkyl, aminoalkyl, carboxymethyl, alkoxycarbonylbenzyl, etc.; R6 is alkylene; R7 and R8 are each H, alkyl; B and B' are each phenyl substituted ...
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JP03186351 |
PURPOSE: To regenerate a chelate resin within an extremely short time in an extremely economical manner by using alkali metal carbonate when the chelate resin used in the treatment of boron-containing water is regenerated. CONSTITUTION: ...
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JP03114120 |
PURPOSE: To use a carbon slurry circularly and lower the manufacturing cost of black matrix of a cathode-ray tube by regenerating the carbon slurry which is recovered after finishing carbon coating on a cathode-ray tube panel by passing ...
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JP03000136 |
PURPOSE: To obtain a chitosan chelate forming molded body having good adsorptivity even in a acidic region by introducing branched polyethylene imine into a porous chitosan molded body to increase the exchange capacity and introducing im...
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JP02271916 |
PURPOSE: To extraction Ga ions with high efficiency without changing the qualities of the source solution by extracting Ga ions from a basic solution with an org. solvent containing a specified extractor and a specified extraction accele...
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