SE370380B - - Google Patents
Info
- Publication number
- SE370380B SE370380B SE7112120A SE1212071A SE370380B SE 370380 B SE370380 B SE 370380B SE 7112120 A SE7112120 A SE 7112120A SE 1212071 A SE1212071 A SE 1212071A SE 370380 B SE370380 B SE 370380B
- Authority
- SE
- Sweden
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
- C01B25/46—Preparation involving solvent-solvent extraction
- C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
-
- 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
-
- 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
- C01B25/46—Preparation involving solvent-solvent extraction
- C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
- C01B25/462—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound the extracting agent being alcohol or a mixture of alcohols
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2047261A DE2047261C3 (de) | 1970-09-25 | 1970-09-25 | Verfahren zur Entfernung von Eisen aus Phosphorsäure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE370380B true SE370380B (https=) | 1974-10-14 |
Family
ID=5783392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7112120A SE370380B (https=) | 1970-09-25 | 1971-09-24 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3784678A (https=) |
| BE (1) | BE772743A (https=) |
| DE (1) | DE2047261C3 (https=) |
| FR (1) | FR2108490A5 (https=) |
| GB (1) | GB1314281A (https=) |
| IT (1) | IT938820B (https=) |
| NL (1) | NL7113054A (https=) |
| SE (1) | SE370380B (https=) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4070443A (en) * | 1976-02-13 | 1978-01-24 | Toyo Soda Manufacturing Co., Ltd. | Process for removing sulfate ions from extracted phosphoric acid with a barium compound |
| JPS5297389A (en) * | 1976-02-13 | 1977-08-16 | Toyo Soda Mfg Co Ltd | Removal of sulfate ion in extracted phosphoric acid |
| US4190634A (en) * | 1978-05-08 | 1980-02-26 | Monsanto Company | Purifying phosphoric acid by extraction with an aliphatic nitrile |
| FR2437377A1 (fr) * | 1978-09-29 | 1980-04-25 | Rhone Poulenc Ind | Procede d'obtention d'un acide phosphorique desulfate pour usage alimentaire |
| WO2022182909A1 (en) * | 2021-02-25 | 2022-09-01 | Jesa Technologies Llc | Method for removing heavy metals in the manufacture of phosphoric acid |
-
1970
- 1970-09-25 DE DE2047261A patent/DE2047261C3/de not_active Expired
-
1971
- 1971-09-06 GB GB4136171A patent/GB1314281A/en not_active Expired
- 1971-09-17 BE BE772743A patent/BE772743A/xx unknown
- 1971-09-17 FR FR7134330A patent/FR2108490A5/fr not_active Expired
- 1971-09-20 US US00182240A patent/US3784678A/en not_active Expired - Lifetime
- 1971-09-20 IT IT28836/71A patent/IT938820B/it active
- 1971-09-23 NL NL7113054A patent/NL7113054A/xx unknown
- 1971-09-24 SE SE7112120A patent/SE370380B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT938820B (it) | 1973-02-10 |
| DE2047261B2 (de) | 1974-11-28 |
| US3784678A (en) | 1974-01-08 |
| DE2047261A1 (de) | 1972-03-30 |
| BE772743A (fr) | 1972-01-17 |
| NL7113054A (https=) | 1972-03-28 |
| GB1314281A (en) | 1973-04-18 |
| DE2047261C3 (de) | 1975-07-17 |
| FR2108490A5 (https=) | 1972-05-19 |