IT1248984B - Procedimento per la eliminazione di cadmio da correnti di acido fosforico - Google Patents

Procedimento per la eliminazione di cadmio da correnti di acido fosforico

Info

Publication number
IT1248984B
IT1248984B IT02074390A IT2074390A IT1248984B IT 1248984 B IT1248984 B IT 1248984B IT 02074390 A IT02074390 A IT 02074390A IT 2074390 A IT2074390 A IT 2074390A IT 1248984 B IT1248984 B IT 1248984B
Authority
IT
Italy
Prior art keywords
cadmium
elimination
procedure
phosphoric acid
currents
Prior art date
Application number
IT02074390A
Other languages
English (en)
Italian (it)
Other versions
IT9020743A1 (it
IT9020743A0 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Guido Anania
Vito Cultrera
Domenico Blanca
Original Assignee
Enichem Agricoltura Spa
Offices Togolais Del Pnosphate
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 Enichem Agricoltura Spa, Offices Togolais Del Pnosphate filed Critical Enichem Agricoltura Spa
Priority to IT02074390A priority Critical patent/IT1248984B/it
Publication of IT9020743A0 publication Critical patent/IT9020743A0/it
Priority to EP19910201484 priority patent/EP0463674A3/en
Publication of IT9020743A1 publication Critical patent/IT9020743A1/it
Application granted granted Critical
Publication of IT1248984B publication Critical patent/IT1248984B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/237—Selective elimination of impurities
    • C01B25/238—Cationic impurities, e.g. arsenic compounds
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
    • C22B3/24—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition by adsorption on solid substances, e.g. by extraction with solid resins
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G11/00—Compounds of cadmium
    • C01G11/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Processing Of Solid Wastes (AREA)
IT02074390A 1990-06-22 1990-06-22 Procedimento per la eliminazione di cadmio da correnti di acido fosforico IT1248984B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT02074390A IT1248984B (it) 1990-06-22 1990-06-22 Procedimento per la eliminazione di cadmio da correnti di acido fosforico
EP19910201484 EP0463674A3 (en) 1990-06-22 1991-06-14 Process for removing cadmium from phosphoric acid streams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02074390A IT1248984B (it) 1990-06-22 1990-06-22 Procedimento per la eliminazione di cadmio da correnti di acido fosforico

Publications (3)

Publication Number Publication Date
IT9020743A0 IT9020743A0 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-06-22
IT9020743A1 IT9020743A1 (it) 1991-12-22
IT1248984B true IT1248984B (it) 1995-02-11

Family

ID=11171404

Family Applications (1)

Application Number Title Priority Date Filing Date
IT02074390A IT1248984B (it) 1990-06-22 1990-06-22 Procedimento per la eliminazione di cadmio da correnti di acido fosforico

Country Status (2)

Country Link
EP (1) EP0463674A3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1248984B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7731920B2 (en) 2005-06-03 2010-06-08 Brookhaven Science Associates System and method for separating tellurium from cadmium waste
FR3151032A1 (fr) 2023-07-12 2025-01-17 Universite Mohammed VI Polytechnique Procédé d’élimination de métaux lourds contenus dans les solutions d’acide phosphorique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE616987C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1933-05-04
DE3327394A1 (de) * 1982-05-18 1985-02-14 Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim Verfahren zum entfernen von cadmium aus sauren, insbesondere p(pfeil abwaerts)2(pfeil abwaerts)o(pfeil abwaerts)5(pfeil abwaerts)-haltigen loesungen
NL8601101A (nl) * 1986-04-29 1987-11-16 Unie Van Kunstmestfab Bv Werkwijze voor het verwijderen van cadmium uit zure, fosfaathoudende waterige media.
IL85751A (en) * 1988-03-16 1991-12-15 Negev Phosphates Ltd Method for the removal of heavy metal ions from phosphoric acid

Also Published As

Publication number Publication date
EP0463674A2 (en) 1992-01-02
EP0463674A3 (en) 1993-12-29
IT9020743A1 (it) 1991-12-22
IT9020743A0 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-06-22

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950616