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JPS62182118A |
PURPOSE: To recover uranium with a high adsorption capacity and high adsorption rate, by bringing an uranium-containing solution into contact with a specific chelating resin. CONSTITUTION: A polymer having amine-reactive groups is reacte...
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JPS6230130B2 |
Recovery of uranium from crude wet process phosphoric acid (WPA) by cation exchange using as cation exchanger a resin comprising active amino phosphonic or hydroxy phosphonic groups linked to a matrix. The operational steps comprise redu...
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JPS6228699B2 |
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JPS6226819B2 |
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JPS6226708B2 |
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JPS6226643B2 |
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JPS62123016A |
PURPOSE: To enable the collection of rare metal existing in a strongly acidic solution at a relatively low concentration without necessitating an alkali treat ment, by contacting a strongly acidic solution containing a rare metal with a ...
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JPS62110799A |
The copolymers are effective in stabilizing iron in solution and as antiscalants in the presence of soluble iron, the copolymers are used in amount of l to 200 ppm, have molecular weight of about l,000 to 50,000, and are prepared by poly...
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JPS6222928B2 |
PURPOSE:To separate and recover heavy metals contained in a solution in high yield, by passing a solution containing several kinds of metals including heavy metals through a polyalkylene polyamine type chelate resin having a specific com...
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JPS6219914B2 |
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JPS6216133B2 |
The invention relates to support material usable as such in chromatography or as a starting material which, upon linkage to it of compounds containing ionic groups, ligands or biomacromolecules, can be used as ion exchanger, as a medium ...
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JPS625442B2 |
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JPS6227311A |
PURPOSE: To simply separate and remove Sb from a soln. acidified with sulfuric acid with selectivity in a high yield in the early stage by bringing the soln. into contact with aromatic polyhydroxy resin. CONSTITUTION: A soln. contg. Sb a...
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JPS625011B2 |
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JPS624047B2 |
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JPS623856B2 |
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JPS621571B2 |
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JPS621406B2 |
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JPS621325B2 |
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JPS621297B2 |
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JPS62923B2 |
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JPS6159170B2 |
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JPS6157847B2 |
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JPS6157846B2 |
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JPS6157844B2 |
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JPS6157899B2 |
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JPS61270216A |
PURPOSE: To enable the fractional recovery of rare earth metal ion in high purity and efficiency, with simple procedure, by contacting a specific chelate resin with a mixed metallic ion solution containing rare earth metal ion and other ...
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JPS61257242A |
Novel ion-exchange or complexing media (for both ionic and nonionic species) (Figures 1-3) are disclosed, the media comprising polymeric anisotropic microporous supports containing polymeric ion-exchange or complexing materials. The supp...
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JPS6152743B2 |
PURPOSE:To perform stable regeneration free from regeneration specks within a short time with a relatively small amount of regenerating liquid by circulating and passing the regenerating liquid through the used ion exchange materials out...
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JPS6152752B2 |
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JPS6152751B2 |
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JPS6152164B2 |
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JPS6148981B2 |
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JPS6143287B2 |
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JPS6143096B2 |
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JPS61205610A |
PURPOSE: To reuse an aqueous solution of phosphate containing Cr as a solution for producing single crystal of KH2PO4, by bringing the aqueous solution into contact with a specific chelate resin so that Cr is adsorbed and removed. CONSTI...
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JPS61201611A |
PURPOSE: To purify aq. soln. of phosphate contg. metals such as Cr, Al, Pb, etc., with high efficiency by allowing the soln. to contact with a chelate resin having guanidino groups to adsorb the metallic impurity to the resin. CONSTITUTI...
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JPS6129883B2 |
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JPS61122120A |
PURPOSE: To produce high-purity yttrium, easily, stably, in high yield, by supplying a specific eluent to a column filled with a chelate resin, and eluting with an acidic solution. CONSTITUTION: A cation exchange resin is filled in a col...
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JPS61122119A |
PURPOSE: To produce high-purity yttrium, easily, stably, in high yield, by supplying a specific eluent to a column filled with a cation exchange resin, and eluting with a solution containing a complexing agent. CONSTITUTION: A chelate re...
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JPS6116504B2 |
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JPS6112744B2 |
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JPS6112743B2 |
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JPS6112489B2 |
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JPS618744B2 |
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JPS618732B2 |
PURPOSE:To decompose and remove ozone effectively for a long period of time by a method in which ozone present in an ozone-containing gas is brought into contact with an activated carbon on which a metal chelate compound is supported. CO...
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JPS617862B2 |
A process for removing an organic impurity from an aqueous solution is disclosed, said process comprising contacting the aqueous solution with an acid cation exchanger and subsequently with a polymer or polycondensate, which contains sul...
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JPS6137772A |
The compounds of the invention comprise the condensation product, as well as derivatives thereof, of two equivalents of a trimethyl cyclohexane-anhydride acid chloride derivative with one equivalent of an aromatic diamine. The scope of t...
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JPS6128449A |
Adsorption material for olefins; gas chromatography column; method of selectively removing olefins from a mixture of hydrocarbons. …This invention relates to an adsorption material for olefins, a gas chromatography column and a met...
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JPS60264325A |
Method of separating heavy metals from complex-forming substance of aminocarboxylic acid type, or salts thereof in aqueous solutions, as well as a method of removing heavy metals from the solutions containing said complex-forming substan...
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