BE693387A - - Google Patents
Info
- Publication number
- BE693387A BE693387A BE693387DA BE693387A BE 693387 A BE693387 A BE 693387A BE 693387D A BE693387D A BE 693387DA BE 693387 A BE693387 A BE 693387A
- Authority
- BE
- Belgium
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Fats And Perfumes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52427266A | 1966-02-01 | 1966-02-01 | |
| US554563A US3410656A (en) | 1966-06-01 | 1966-06-01 | Phosphoric acid purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE693387A true BE693387A (US07922777-20110412-C00004.png) | 1967-07-31 |
Family
ID=27061446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE693387D BE693387A (US07922777-20110412-C00004.png) | 1966-02-01 | 1967-01-30 |
Country Status (6)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2421845A2 (fr) * | 1978-01-12 | 1979-11-02 | Rhone Poulenc Ind | Procede de purification d'un acide phosphorique de voie humide |
| FR2391954A2 (fr) * | 1977-05-23 | 1978-12-22 | Rhone Poulenc Ind | Procede de purification d'un acide phosphorique de voie humide |
| US4250155A (en) | 1978-06-09 | 1981-02-10 | Gardinier, Inc. | Method of purifying phosphoric acid after solvent extraction |
| US5006319A (en) * | 1988-03-04 | 1991-04-09 | Fmc Corporation | Process for removing iron, chromium and vanadium from phosphoric acid |
| FR2677345B1 (fr) * | 1991-06-04 | 1993-12-24 | Commissariat A Energie Atomique | Procede de purification et de recuperation d'acide orthophosphorique par extraction liquide-liquide. |
| DE102008023649A1 (de) * | 2008-05-15 | 2009-11-19 | Csv-Chemie Service Und Vertriebs Gmbh | Verfahren zur Extraktion von Phosphorsäure und Mischungen mit Phosphorsäure |
-
1967
- 1967-01-26 ES ES0336087A patent/ES336087A1/es not_active Expired
- 1967-01-27 FR FR92887A patent/FR1509607A/fr not_active Expired
- 1967-01-30 BE BE693387D patent/BE693387A/xx not_active IP Right Cessation
- 1967-01-31 NL NL6701511A patent/NL150753B/xx not_active IP Right Cessation
- 1967-02-01 GB GB486867A patent/GB1162062A/en not_active Expired
- 1967-02-01 BR BR18672667A patent/BR6786726D0/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1667487A1 (de) | 1971-06-24 |
| FR1509607A (fr) | 1968-01-12 |
| ES336087A1 (es) | 1967-12-16 |
| NL150753B (nl) | 1976-09-15 |
| NL6701511A (US07922777-20110412-C00004.png) | 1967-08-02 |
| BR6786726D0 (pt) | 1973-12-27 |
| DE1667487B2 (de) | 1976-01-15 |
| GB1162062A (en) | 1969-08-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE20 | Patent expired |
Owner name: FMC CORP. Effective date: 19870130 |