Regenerering ved v¶ske-v¶ske-ekstrahering av syrer fra vannholdige lösninger som inneholder metaller
The invention concerns a method for regenerating hydrochloric and/or sulphuric acids from an aqueous solution containing metals, characterised in that it comprises the following successive steps which consist in: extracting the acid to be regenerated by contacting the aqueous solution containing met...
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| creator | PAREAU, DOMINIQUE SCHNEIDER, HELENE HITA, ALAIN LAHITTE, CLAUDE STAMBOULI, MONCEF DURAND, GERARD |
| description | The invention concerns a method for regenerating hydrochloric and/or sulphuric acids from an aqueous solution containing metals, characterised in that it comprises the following successive steps which consist in: extracting the acid to be regenerated by contacting the aqueous solution containing metals with an organic solvent, said organic solvent containing at least an amine and optionally at least an organic acid; separating the organic and aqueous phases; and extracting the acid to be regenerated by contacting the organic phase recovered at the preceding step with water. |
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STAMBOULI, MONCEF ; DURAND, GERARD</creatorcontrib><description>The invention concerns a method for regenerating hydrochloric and/or sulphuric acids from an aqueous solution containing metals, characterised in that it comprises the following successive steps which consist in: extracting the acid to be regenerated by contacting the aqueous solution containing metals with an organic solvent, said organic solvent containing at least an amine and optionally at least an organic acid; separating the organic and aqueous phases; and extracting the acid to be regenerated by contacting the organic phase recovered at the preceding step with water.</description><edition>7</edition><language>nor</language><subject>CHEMICAL SURFACE TREATMENT ; CHEMISTRY ; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING MATERIAL WITH METALLIC MATERIAL ; COATING METALLIC MATERIAL ; 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separating the organic and aqueous phases; and extracting the acid to be regenerated by contacting the organic phase recovered at the preceding step with water.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY |
| title | Regenerering ved v¶ske-v¶ske-ekstrahering av syrer fra vannholdige lösninger som inneholder metaller |
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