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JPS558821A |
PURPOSE: To obtain the enhanced uptake power by reacting on a carrier a heterogiant cyclic compound having amino groups with an epoxy compound having a given molecular weight and a given number of epoxy groups. CONSTITUTION: A heterogian...
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JPS54162800A |
PURPOSE: To prepare the title spherical resin having excellent abrasion resistance and useful for the adsorption and removal of heavy metal ions, by crosslinking a carboxymethylated polyethylene-imine with an epihalohydrin in an organic ...
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JPS54162799A |
PURPOSE: To prepare the title resin having high abrasion resistance and useful for the adsorption of heavy metal ions, by crosslinking a carboxymethylated polyethylene-imine with a polyepoxide compound in the presence of an organic solve...
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JPS5442356B2 |
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JPS5440041B2 |
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JPS5435599B2 |
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JPS5434706B2 |
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JPS5432834B2 |
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JPS5432680B2 |
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JPS5432474B2 |
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JPS54125700A |
The present invention relates to new azulmic acids stabilized by condensation with carbonyl compounds, several processes for their preparation and their use for various purposes.
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JPS54123590A |
A process for removing heavy-metal ions from aqueous solutions, particularly from effluents. The process comprises bringing the aqueous solutions into contact with a water-insoluble adsorbent which has been produced from: (a) a basic pol...
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JPS54101893A |
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JPS54100979A |
PURPOSE: To manufacture and adsorbent with a high selective adsorbability for soluble metal ions by the reaction of EGTA and a specific polyisocyanate in the presence of a soluble metal salt in a polar non-protic solvent of a specific pe...
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JPS5496484A |
PURPOSE: To produce the title adsorbent of superior hydrophilic property contg. sulfur by mixing a reaction product of cyanuric chloride, thiocarbohydrazide and polyether with polyisocyanate in a polar solvent of above a specified dielec...
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JPS5421199B2 |
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JPS5481183A |
PURPOSE: To provide an adsorvent showing a high hydrophilicity and an excellent heavy metal ion adsorption property through reaction of cyanuric chloride, thiocarbohydrazide, an aminosulfonic acid and a polyisocyanate in a polar nonproto...
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JPS5481184A |
PURPOSE: To provide a highly selective adsorbent useful for desalting of sea water, separation of organometal through cross-linking of polyethylene imine denaturalized by carboxymethyl in a water solution by epibromohydrin in the presenc...
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JPS5415790B2 |
A new polyvinyl(dialkylthiocarbamoylthio)acetate resin expressed by the formula (wherein R1 and R2 each represent hydrogen atom or an alkyl group of C1-C5) is provided. Said resin has a superior heavy metals-removing performance and is i...
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JPS5415920B2 |
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JPS5415712B2 |
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JPS5415713B2 |
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JPS5415714B2 |
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JPS5411762B2 |
1401891 Removing metals from solutions; gas separation STAMICARBON BV 14 June 1973 [17 June 1972 1 May 1973 17 May 1973] 28383/73 Headings C1A and C1C [Also in Division C3] Metal values are removed from solutions or gaseous mixtures cont...
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JPS5410999B2 |
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JPS5411000B2 |
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JPS547256B2 |
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JPS544393B2 |
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JPS544395B2 |
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JPS543920B2 |
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JPS543919B2 |
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JPS5423092A |
PURPOSE: To provide an ion exchanger for an ion eldctrode consisting of a metal complex having glyoxide as the ligand or its derivative, by which ion concn. of Ni, Co, Bi, etc. can be measured which could no be measured by any convention...
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JPS5416597A |
Modified phenolic resins are prepared by condensing approximately equimolar quantities of a phenolic component comprising one or more phenols, and a diamino component comprising one or more di-(secondary amino) compounds with approximate...
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JPS5347400B2 |
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JPS5347155B2 |
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JPS53143690A |
PURPOSE: To prepare a new chelate resin which has excellent heavy metal adsorptivity, adsorption rate, mecahnical strength , etc. and is easily regenerable by reacting an amino group-containing polymer with carbon disulfide.
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JPS5343907B2 |
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JPS5343912B2 |
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JPS5343131B2 |
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JPS53122690A |
Cobalt, copper and nickel values are separated from ammoniacal aqueous solutions by contacting the solutions with a chelate exchange resin of polymerized ar-vinylbenzylamino dicarboxylic acids whereby the cobalt, copper and nickel values...
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JPS5339853B2 |
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JPS5339841B2 |
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JPS5339345B2 |
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JPS5338194B2 |
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JPS5338196B2 |
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JPS5337280B1 |
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JPS53113888A |
PURPOSE: To prepare a chelate resin useful for desalination and having an excellent exchange adsorptivity of alkaline earth metal ions, and a three dimensional structure, by condensing and crosslinking phenols, aldehydes, iminodiacetic a...
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JPS5332391B2 |
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JPS5328360B2 |
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JPS5325592B2 |
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