MA20539A1 - Procede de reduction du fer et du vanadium dans une solution d'acide phosphorique - Google Patents
Procede de reduction du fer et du vanadium dans une solution d'acide phosphoriqueInfo
- Publication number
- MA20539A1 MA20539A1 MA20763A MA20763A MA20539A1 MA 20539 A1 MA20539 A1 MA 20539A1 MA 20763 A MA20763 A MA 20763A MA 20763 A MA20763 A MA 20763A MA 20539 A1 MA20539 A1 MA 20539A1
- Authority
- MA
- Morocco
- Prior art keywords
- vanadium
- phosphoric acid
- acid solution
- reducing iron
- iron
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 title 1
- 229910052742 iron Inorganic materials 0.000 title 1
- 229910052720 vanadium Inorganic materials 0.000 title 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 title 1
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
- C01B25/26—Phosphates
- C01B25/30—Alkali metal phosphates
- C01B25/301—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates
- C01B25/303—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates with elimination of impurities
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Compounds Of Iron (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3437684A DE3437684C1 (de) | 1984-10-15 | 1984-10-15 | Verfahren zur Reduktion von Eisen und Vanadium in phosphorsaurer Lösung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MA20539A1 true MA20539A1 (fr) | 1986-07-01 |
Family
ID=6247888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MA20763A MA20539A1 (fr) | 1984-10-15 | 1985-10-02 | Procede de reduction du fer et du vanadium dans une solution d'acide phosphorique |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4642224A (fr) |
| EP (1) | EP0178517B1 (fr) |
| CA (1) | CA1256268A (fr) |
| DE (1) | DE3437684C1 (fr) |
| ES (1) | ES8604835A1 (fr) |
| MA (1) | MA20539A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4327401A1 (de) * | 1993-08-14 | 1995-02-16 | Hoechst Ag | Verfahren zur Entfernung von Blei und Cadmium aus Phosphorsäure |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1191558A (fr) * | 1957-03-19 | 1959-10-20 | Saint Gobain | Préparation de phosphates alcalins incolores |
| DE1567619C3 (de) * | 1965-05-15 | 1974-08-15 | Knapsack Ag, 5033 Huerth-Knapsack | Verfahren zur Herstellung von vanadiumarmen Alkaliphosphaten |
| US3421846A (en) * | 1965-06-07 | 1969-01-14 | Hooker Chemical Corp | Production of sodium phosphates |
| DE2528895B2 (de) * | 1975-06-28 | 1978-04-13 | Hoechst Ag, 6000 Frankfurt | Verfahren zur Herstellung vanadiumarmer Alkaliphosphatlösungen |
| 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 |
| 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 |
| 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 |
-
1984
- 1984-10-15 DE DE3437684A patent/DE3437684C1/de not_active Expired
-
1985
- 1985-09-16 CA CA000490766A patent/CA1256268A/fr not_active Expired
- 1985-09-28 EP EP85112330A patent/EP0178517B1/fr not_active Expired
- 1985-10-01 US US06/782,701 patent/US4642224A/en not_active Expired - Fee Related
- 1985-10-02 MA MA20763A patent/MA20539A1/fr unknown
- 1985-10-15 ES ES547873A patent/ES8604835A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0178517A2 (fr) | 1986-04-23 |
| EP0178517B1 (fr) | 1988-12-07 |
| US4642224A (en) | 1987-02-10 |
| ES547873A0 (es) | 1986-03-01 |
| DE3437684C1 (de) | 1986-06-05 |
| CA1256268A (fr) | 1989-06-27 |
| EP0178517A3 (en) | 1987-03-25 |
| ES8604835A1 (es) | 1986-03-01 |
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