IT9020743A0 - - Google Patents
Info
- Publication number
- IT9020743A0 IT9020743A0 IT20743A IT2074390A IT9020743A0 IT 9020743 A0 IT9020743 A0 IT 9020743A0 IT 20743 A IT20743 A IT 20743A IT 2074390 A IT2074390 A IT 2074390A IT 9020743 A0 IT9020743 A0 IT 9020743A0
- Authority
- IT
- Italy
Links
Classifications
-
- 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
- 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
- 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)
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 true IT9020743A0 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1990-06-22 |
| IT9020743A1 IT9020743A1 (it) | 1991-12-22 |
| IT1248984B 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)
| 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)
| 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 |
-
1990
- 1990-06-22 IT IT02074390A patent/IT1248984B/it active IP Right Grant
-
1991
- 1991-06-14 EP EP19910201484 patent/EP0463674A3/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP0463674A2 (en) | 1992-01-02 |
| IT1248984B (it) | 1995-02-11 |
| EP0463674A3 (en) | 1993-12-29 |
| IT9020743A1 (it) | 1991-12-22 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted | ||
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950616 |