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ES8608450A1 - Procedimiento para la reduccion de iones metalicos en solu- ciones acuosas - Google Patents

Procedimiento para la reduccion de iones metalicos en solu- ciones acuosas

Info

Publication number
ES8608450A1
ES8608450A1 ES547690A ES547690A ES8608450A1 ES 8608450 A1 ES8608450 A1 ES 8608450A1 ES 547690 A ES547690 A ES 547690A ES 547690 A ES547690 A ES 547690A ES 8608450 A1 ES8608450 A1 ES 8608450A1
Authority
ES
Spain
Prior art keywords
metal ions
reduction
aqueous solutions
ferrophosphorus
reductant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES547690A
Other languages
English (en)
Other versions
ES547690A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of ES8608450A1 publication Critical patent/ES8608450A1/es
Publication of ES547690A0 publication Critical patent/ES547690A0/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G1/00—Methods of preparing compounds of metals not covered by subclasses C01B, C01C, C01D, or C01F, in general
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G31/00—Compounds of vanadium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G43/00—Compounds of uranium

Landscapes

  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Fodder In General (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Removal Of Specific Substances (AREA)
  • Compounds Of Iron (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

PROCEDIMIENTO PARA LA REDUCCION DE IONES METALICOS EN SOLUCIONES ACUOSAS. CONSISTENTE EN LA REDUCCION DE IONES EN ESTADO DE OXIDACION ALTO (HIERRO, VANADIO, CROMO, URANIO) UTILIZANDO COMO AGENTE REDUCTOR FERROFOSFORO, CON UN TAMAÑO DE GRANO INFERIOR A 10 MM; LA REDUCCION SE LLEVA A CABO EN UN MEDIO DE REACCION ACIDO, NEUTRO O BASICO, INCLUSO A VALORES DE PH DEL MEDIO SUPERIORES A 9; LA REACCION TIENE LUGAR A UNA TEMPERATURA SUPERIOR A 60JC. DE UTILIZACION PARA REDUCIR IONES METALICOS EN ESTADO DE OXIDACION ALTO A ESTADOS DE OXIDACION BAJOS.
ES547690A 1984-10-15 1985-10-08 Procedimiento para la reduccion de iones metalicos en solu- ciones acuosas Expired ES8608450A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3437686A DE3437686C2 (de) 1984-10-15 1984-10-15 Verfahren zur Reduktion von Metallionen in wäßrigen Lösungen

Publications (2)

Publication Number Publication Date
ES8608450A1 true ES8608450A1 (es) 1986-07-16
ES547690A0 ES547690A0 (es) 1986-07-16

Family

ID=6247890

Family Applications (1)

Application Number Title Priority Date Filing Date
ES547690A Expired ES8608450A1 (es) 1984-10-15 1985-10-08 Procedimiento para la reduccion de iones metalicos en solu- ciones acuosas

Country Status (6)

Country Link
US (1) US4670244A (es)
EP (1) EP0178498B1 (es)
CA (1) CA1235578A (es)
DE (1) DE3437686C2 (es)
ES (1) ES8608450A1 (es)
MA (1) MA20537A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540541A1 (de) * 1985-11-15 1987-05-21 Metallgesellschaft Ag Verfahren zur reduktion von hoeheren metalloxiden zu niedrigen metalloxiden
US5192163A (en) * 1992-05-29 1993-03-09 Fleming Joseph W Correction method for contaminated sites
DE4327401A1 (de) * 1993-08-14 1995-02-16 Hoechst Ag Verfahren zur Entfernung von Blei und Cadmium aus Phosphorsäure
US5472618A (en) * 1994-02-07 1995-12-05 Great Western Chemical Company Method for recovering metals from solutions

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE390602C (de) * 1922-06-02 1924-02-21 Starck Hermann C Fa Verfahren zur Herstellung von Chromsalzen
US1633621A (en) * 1923-08-03 1927-06-28 Blumenfeld Joseph Filtration of solutions and the like
US2127450A (en) * 1933-01-21 1938-08-16 Schneider Albert Process for preparing water for industrial purposes of all kinds, especially boiler feed water
US3294680A (en) * 1964-11-18 1966-12-27 Lancy Lab Treatment of spent cooling waters
US3421845A (en) * 1965-06-07 1969-01-14 Hooker Chemical Corp Production of sodium phosphates
US3536619A (en) * 1968-09-16 1970-10-27 Universal Oil Prod Co Treatment of an aqueous waste stream from a hydrocarbon conversion process
US3857704A (en) * 1971-03-05 1974-12-31 Bp Chem Int Ltd Mercury recovery process
US3770630A (en) * 1971-09-02 1973-11-06 Dart Ind Inc Treatment of electroless process and stripping solutions
US3901805A (en) * 1973-10-24 1975-08-26 Dow Badische Co Removing toxic chromium from industrial effluents
JPS5122262A (ja) * 1974-08-19 1976-02-21 Kurita Water Ind Ltd Banajinsanenganjuhaisuino shoriho
DE2528895B2 (de) * 1975-06-28 1978-04-13 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung vanadiumarmer Alkaliphosphatlösungen
US4108769A (en) * 1976-03-27 1978-08-22 Hoechst Aktiengesellschaft Process for reducing the mercury content of industrial waste waters
IT1125158B (it) * 1976-11-19 1986-05-14 Sarda Off Mec Miglioramenti nei procedimenti per la preparazione di tripolifosfato sodico
US4147757A (en) * 1976-12-13 1979-04-03 Olin Corporation Method for producing ammonium phosphate which is substantially free of arsenic
CH633497A5 (de) * 1977-03-30 1982-12-15 Kernforschungsanlage Juelich Verfahren zur reduktion von reduzierbaren schadstoffen in waessrigen loesungen.
JPS5451972A (en) * 1977-10-03 1979-04-24 Fuji Kasui Kogyo Kk Method of continuously treating sexivalent chrome
US4374805A (en) * 1978-05-26 1983-02-22 Uranium Recovery Corporation Reductants for reducing metals in acid media
DE3045645A1 (de) * 1980-12-04 1982-07-22 Hoechst Ag, 6000 Frankfurt Verfahren zur reduktion von eisen in phospharsaurer loesung
US4490336A (en) * 1981-05-27 1984-12-25 Prodeco, Inc. Process for stripping uranium from an alkyl pyrophosphoric acid
JPS5889987A (ja) * 1981-11-25 1983-05-28 Hitachi Plant Eng & Constr Co Ltd 脱硫及び脱硝排水の浄化処理方法
US4485078A (en) * 1982-03-16 1984-11-27 Agrico Chemical Company Process for producing wet process phosphoric acid from phosphate rocks containing fluochlorapatite and related minerals

Also Published As

Publication number Publication date
EP0178498A2 (de) 1986-04-23
EP0178498B1 (de) 1990-08-22
EP0178498A3 (en) 1988-04-27
DE3437686C2 (de) 1986-10-02
ES547690A0 (es) 1986-07-16
MA20537A1 (fr) 1986-07-01
DE3437686A1 (de) 1986-04-17
CA1235578A (en) 1988-04-26
US4670244A (en) 1987-06-02

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Legal Events

Date Code Title Description
MM4A Patent lapsed

Effective date: 19960506