ATE132835T1 - Verfahren zur entfernung von kadmium aus phosphorsäurelösungen - Google Patents

Verfahren zur entfernung von kadmium aus phosphorsäurelösungen

Info

Publication number
ATE132835T1
ATE132835T1 AT92107224T AT92107224T ATE132835T1 AT E132835 T1 ATE132835 T1 AT E132835T1 AT 92107224 T AT92107224 T AT 92107224T AT 92107224 T AT92107224 T AT 92107224T AT E132835 T1 ATE132835 T1 AT E132835T1
Authority
AT
Austria
Prior art keywords
phosphoric acid
cadmium
removal
acid solutions
solutions
Prior art date
Application number
AT92107224T
Other languages
English (en)
Inventor
Gaetano Calicchio
Fabio Dr Bassan
Ito Norma Megumi
Original Assignee
Agricoltura Spa
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 Agricoltura Spa filed Critical Agricoltura Spa
Application granted granted Critical
Publication of ATE132835T1 publication Critical patent/ATE132835T1/de

Links

Classifications

    • 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
    • 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
    • C22B17/00—Obtaining cadmium
    • C22B17/04—Obtaining cadmium by wet processes
    • 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
    • C22B3/42—Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
    • 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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • 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
AT92107224T 1991-10-11 1992-04-28 Verfahren zur entfernung von kadmium aus phosphorsäurelösungen ATE132835T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT91MI2704 IT1251686B (it) 1991-10-11 1991-10-11 Processo per l'allontanamento del cadmio da soluzioni di acido fosforico.

Publications (1)

Publication Number Publication Date
ATE132835T1 true ATE132835T1 (de) 1996-01-15

Family

ID=11360857

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92107224T ATE132835T1 (de) 1991-10-11 1992-04-28 Verfahren zur entfernung von kadmium aus phosphorsäurelösungen

Country Status (11)

Country Link
US (1) US5246681A (de)
EP (1) EP0536466B1 (de)
JP (1) JPH05213608A (de)
AT (1) ATE132835T1 (de)
CA (1) CA2067263A1 (de)
DE (1) DE69207542D1 (de)
FI (1) FI921862A (de)
IL (1) IL101709A (de)
IT (1) IT1251686B (de)
OA (1) OA09581A (de)
ZA (1) ZA923087B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100339299C (zh) * 1998-12-28 2007-09-26 东洋纺织株式会社 精制磷酸的方法
CN1321058C (zh) * 1998-12-28 2007-06-13 东洋纺织株式会社 精制磷酸的方法及高纯度多磷酸
US7731920B2 (en) * 2005-06-03 2010-06-08 Brookhaven Science Associates System and method for separating tellurium from cadmium waste

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306702A (en) * 1962-06-18 1967-02-28 Nalco Chemical Co Removal of metal salt contaminants from acidic aqueous liquids
JPS54133495A (en) * 1978-04-10 1979-10-17 Asahi Chem Ind Co Ltd Recovering method for liquid phase oxidation catalyst
US4511541A (en) * 1982-12-02 1985-04-16 J. R. Simplot Company Process for the recovery of cadmium and other metals from solution
NL8601101A (nl) * 1986-04-29 1987-11-16 Unie Van Kunstmestfab Bv Werkwijze voor het verwijderen van cadmium uit zure, fosfaathoudende waterige media.
US4877594A (en) * 1988-12-13 1989-10-31 J. R. Simplot Co. Purification of phosphoric acid

Also Published As

Publication number Publication date
DE69207542D1 (de) 1996-02-22
FI921862A0 (fi) 1992-04-24
IT1251686B (it) 1995-05-19
IL101709A (en) 1995-12-31
ITMI912704A1 (it) 1993-04-11
JPH05213608A (ja) 1993-08-24
ZA923087B (en) 1993-04-28
EP0536466A1 (de) 1993-04-14
CA2067263A1 (en) 1993-04-12
ITMI912704A0 (it) 1991-10-11
OA09581A (en) 1993-01-31
EP0536466B1 (de) 1996-01-10
US5246681A (en) 1993-09-21
FI921862A (fi) 1993-04-12

Similar Documents

Publication Publication Date Title
DE3672569D1 (de) Verfahren zur herstellung von harnstoff- und ammoniumsulfathaltigen duengemittelkoernchen.
ATE132835T1 (de) Verfahren zur entfernung von kadmium aus phosphorsäurelösungen
ATE104925T1 (de) Verfahren zum reinigen von flusssaeure.
MY108534A (en) Process for purifying n-phosphonomethylgycine
ES8102056A1 (es) Procedimiento de purificacion de una fase organica ensolubleen agua que contiene acido fosforico y acido sulfurico.
ZA895453B (en) Removal of nox from the waste gases obtained in the production of fertilizers
GB1371589A (en) Process for treating salt-containing acids
ATE32916T1 (de) Verfahren zur gewinnung von l-aepfelsaeure.
Glonek et al. Synthesis of an organic adduct of the P4O10 cage structure
Beauchamp Fixed ammonium and potassium release from two soils
DE3376000D1 (en) Process for the purification of wet-process phosphoric acid
ATE49713T1 (de) Verfahren zum entfernen von stickoxyden aus abgasen.
DE58901313D1 (de) Verfahren zur abtrennung von fluorwasserstoff aus isobuttersaeure oder ihren alkylestern.
ATE40096T1 (de) Verfahren zur behandlung von eisen-ii-sulfatheptohydrat, um seine neigung zum agglomerieren zu unterdruecken, damit es frei ausfliessen kann.
ATE25068T1 (de) Verfahren und anlage zur erzeugung von ammoniumnitrat.
US2202526A (en) Purification of phosphoric acid
JPS54133755A (en) Method of process for waste water
ES8304450A1 (es) Un metodo para regenerar una resina de intercambio cationico.
JPS57149823A (en) Purifying method for brine for electrolysis
GB816573A (en) Method of manufacturing fertilisers from calcium nitrate and urea
JPS5688812A (en) Preparation of phosphoric acid by wet process
Kelley Effect of nitrifying bacteria on the solubility of tri-calcium phosphate
US3511604A (en) Corrosion inhibition during phosphate rock acidulation
Solache-Rios et al. Determination of lanthanum in phosphate rock and in its products by neutron activation analysis
ES8506461A1 (es) Un procedimiento para extraer cromo (iii) a partir de una solucion acuosa que lo contiene

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties