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JPS60260404A |
PURPOSE: To remove mercury from sulfuric acid by adsorption in a high yield at a low cost by bringing the sulfuric acid contg. mercury into contact with an ion exchange resin having thiol groups. CONSTITUTION: Upper and lower resin colum...
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JPS6059011B2 |
A phenolic chelate resin comprising the three-dimensional product obtained by cross-linking a phenolic compound represented by the general formula (I): (I) (wherein M is an alkali metal atom, an ammonium group, or a hydrogen atom, and R1...
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JPS6055448B2 |
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JPS6054353B2 |
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JPS6054097B2 |
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JPS6052161B2 |
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JPS6051491B2 |
A phenolic chelate resin has a chelate-forming group, wherein hydrogen atoms in a primary or secondary alkylamino group introduced in a phenol nucleus are substituted by a methylenephosphonate group. The phenolic chelate resin is pro...
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JPS6051392B2 |
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JPS6051391B2 |
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JPS60211091A |
PURPOSE:To purify a copper electrolytic soln. by bringing the soln. into contact with a specified chelate resin immediately after discharge from an electrolytic cell so as to adsorb metallic ions as impurities at a high rate by the remov...
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JPS60209262A |
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 hydrophob...
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JPS6036832B2 |
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JPS6036830B2 |
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JPS6034955B2 |
Process for isolating 1,4,7,10,13,16- hexaoxacyclooctadecane (A) in high yield from a mixture also containing other macrocyclic polyethers, by reacting A with nitromethane in the presence of a solvent for these macrocyclic polyethers, to...
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JPS60135420A |
PURPOSE: To obtain an easily regeneratable chelating resin having an exchange capacity and an excellent effect of scavenging metal ions, boron, and arsenic, by polycondensing a specified aromatic amine with a polyhydroxyalkylaldehyde in ...
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JPS60135419A |
PURPOSE: To obtain an easily regeneratable chelating resin having a high exchange capacity and an excellent effect of scavenging metal ions, boron and arsenic, by polycondensing a specified aromatic amine with a polyhydroxyalkylaldehyde ...
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JPS6028533B2 |
PURPOSE:To produce an adsorbent having selectivity and high adsorbing power to heavy metals dissolved in water, esp. U by diazotizing a polyaminostyrene copolymer and coupling the diazotized copolymer with specified catechol derivatives.
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JPS6028534B2 |
PURPOSE:Preparation of a heavy metal ion adsorbent with high selectivity and adsorbability to uranium by polycondensation of a catechol derivative and formaldehyde.
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JPS6023763B2 |
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JPS60103029A |
PURPOSE: To recover Ge especially from a strongly acidic leaching soln. in a high yield by bringing a chelate resin having specified functional groups into contact with a soln. contg. Ge to allow Ge to be adsorbed on the resin and by elu...
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JPS6088008A |
PURPOSE: To obtain a tetraacetic acid-type chelating resin at high reaction conversions, by reacting a halogen-containing polymer with a polyamine and then with an α-haloacetic acid. CONSTITUTION: An aminated polymer is formed by reacti...
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JPS6016966B2 |
Cationic polymers which are useful as flocculants are prepared by reacting (a) a condensation polymer prepared from dicyandiamide and a polyalkylenepolyamine, (b) a dialkylamine, and (c) a difunctional epoxide.
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JPS6015382B2 |
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JPS6010521B2 |
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JPS609857B2 |
PURPOSE:To produce an adsorbent having selective adsorbing power to heavy metal ions by diazotizing a polyaminostyrene copolymer and coupling the diazotized copolymer with specified benzoic acid amide derivatives.
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JPS608011B2 |
A cellulosic ion-exchange fiber having a functional group represented by the formula, wherein n is 1 or 2 and M is a hydrogen atom, alkali metal or ammonium residue, is produced by dipping a cellulosic fiber in an aqueous solution contai...
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JPS604739B2 |
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JPS603083B2 |
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JPS603081B2 |
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JPS603082B2 |
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JPS603084B2 |
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JPS6011230A |
PURPOSE: To recover efficiency uranium from an aqueous soln. contg. uranium such as sea water by adsorbing uranium on a polyion complex having carboxyl groups and amino groups and/or imino groups. CONSTITUTION: A polymerizable unsatd. ca...
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JPS6011231A |
PURPOSE: To recover uranium at a high rate of adsorption by bringing a soln. contg. uranium into contact with a specified chelate resin having a large adsorption capacity. CONSTITUTION: A polymer having groups reactive with amine such as...
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JPS6011224A |
PURPOSE: To recover efficiency heavy metals from a soln. by adsorption in a state which is independent of coexisting ions by bringing a chelate resin having functional groups having a specified structure in the molecule into contact with...
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JPS5951949B2 |
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JPS59223235A |
PURPOSE: To recover uranium in a short time with always small amt. of an adsorbent without deterioration of the adsorbent in a soln. contg. an oxidative chemical by bringing a specific chelate resin into contact with an uranium- contg. s...
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JPS59213618A |
PURPOSE: To remove easily thallium in a potassium salt, and to obtain the purified potassium salt by adsorbing and removing thallium contained in the potassium salt with the use of a chelate resin of the aminoalkylene phosphoric acid typ...
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JPS59213622A |
PURPOSE: To recover gallium of high purity in high yield without requiring treatment of gel at all by electrolyzing the eliminated liquid obtd. by treating decomposed liquid by the oxidation of a specified metallic compsn. contg. Ga with...
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JPS5946523B2 |
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JPS5946252B2 |
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JPS59196885A |
NEW MATERIAL:A compound shown by the formula I (m is 3, or 4; n≥1). USE: Since the titled ether has highly selective coordination ability on potassium salts, it is useful as a selective absorbent for potassium salts, and an electrode c...
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JPS59193141A |
PURPOSE: To obtain a compound body having higher physical strength than the products made of conventional resin by including an ion exchange resin or a chelate resin in the pores of porous glass particles. CONSTITUTION: A compound body i...
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JPS59179606A |
PURPOSE: The titled chelating resin excellent in an ability of sequestering a metal (especially, heavy metals such as Cu, Ni or V), prepared by introducing specified polydendate ligands to form pendants. CONSTITUTION: An aminomethylphosp...
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JPS5940483B2 |
A process is, herein, disclosed for preparing oxine impregnated-activated charcoal comprising contacting solid oxine with activated charcoal.
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JPS5939442B2 |
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JPS5938018B2 |
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JPS5938017B2 |
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JPS5934647B2 |
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JPS5929658B2 |
1491399 Removal of ferric ions from aqueous zinc solution AKZO NV 14 July 1976 [18 July 1975] 29335/76 Heading ClA Ferric ions are removed from an aqueous zinc solution containing at least 80 gl. of zinc ions by contacting the solution, ...
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JPS5928617B2 |
PURPOSE:To recover copper in plating effluent water contg. copper pyrophosphate as high grade inorg. chemicals in a simple procedure by treating the effluent water with an ion exchange resin at a specified pH value and then treating the ...
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