BE672707A - - Google Patents
Info
- Publication number
- BE672707A BE672707A BE672707DA BE672707A BE 672707 A BE672707 A BE 672707A BE 672707D A BE672707D A BE 672707DA BE 672707 A BE672707 A BE 672707A
- 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
- C01B25/237—Selective elimination of impurities
- C01B25/2372—Anionic impurities, e.g. silica or boron compounds
- C01B25/2375—Fluoride or fluosilicate anion
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/08—Compounds containing halogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6413920A NL151045B (nl) | 1964-11-30 | 1964-11-30 | Werkwijze voor het verwijderen van fluor uit fosforzuur. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE672707A true BE672707A (xx) | 1966-03-16 |
Family
ID=19791540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE672707D BE672707A (xx) | 1964-11-30 | 1965-11-23 |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS4811475B1 (xx) |
| BE (1) | BE672707A (xx) |
| DE (1) | DE1287053C2 (xx) |
| DK (1) | DK109385C (xx) |
| FI (1) | FI45315C (xx) |
| FR (1) | FR1456263A (xx) |
| GB (1) | GB1127247A (xx) |
| NL (1) | NL151045B (xx) |
| SE (1) | SE319757C (xx) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3718729A (en) * | 1971-03-15 | 1973-02-27 | American Cyanamid Co | Defluorination of wet process phosphoric acid |
| DE2719701C3 (de) * | 1976-05-06 | 1986-10-02 | W.R. Grace & Co., New York, N.Y. | Verfahren zur Überführung von Naßphosphorsäure in eine nicht zu Ausfällungen neigende konzentrierte Phosphorsäure |
| AU499517B2 (en) * | 1978-03-06 | 1979-04-26 | W. R. Grace & Co | Treating wet-process phosphoric acid |
| US4311681A (en) | 1980-05-19 | 1982-01-19 | Fmc Corporation | Method of regenerating phosphoric acid extraction solvent |
| DE3913853A1 (de) * | 1989-04-27 | 1990-10-31 | Hoechst Ag | Verfahren zur aufarbeitung von phosphorsaeure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2123785A (en) * | 1936-03-02 | 1938-07-12 | Victor Chemical Works | Removal of fluorine from phosphoric acid |
-
1964
- 1964-11-30 NL NL6413920A patent/NL151045B/xx unknown
-
1965
- 1965-11-23 GB GB4978465A patent/GB1127247A/en not_active Expired
- 1965-11-23 BE BE672707D patent/BE672707A/xx unknown
- 1965-11-24 SE SE6515188A patent/SE319757C/xx unknown
- 1965-11-25 DE DE1965E0030531 patent/DE1287053C2/de not_active Expired
- 1965-11-27 DK DK610865A patent/DK109385C/da active
- 1965-11-29 FR FR40063A patent/FR1456263A/fr not_active Expired
- 1965-11-29 FI FI287765A patent/FI45315C/fi active
- 1965-11-30 JP JP7318965A patent/JPS4811475B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FI45315C (fi) | 1972-05-10 |
| SE319757B (xx) | 1970-01-26 |
| JPS4811475B1 (xx) | 1973-04-13 |
| GB1127247A (en) | 1968-09-18 |
| FI45315B (xx) | 1972-01-31 |
| NL6413920A (xx) | 1966-05-31 |
| FR1456263A (fr) | 1966-10-21 |
| DK109385C (da) | 1968-04-22 |
| DE1287053C2 (de) | 1973-12-20 |
| SE319757C (xx) | 1975-06-30 |
| NL151045B (nl) | 1976-10-15 |
| DE1287053B (de) | 1969-01-16 |