SE339937B - - Google Patents
Info
- Publication number
- SE339937B SE339937B SE1727668A SE1727668A SE339937B SE 339937 B SE339937 B SE 339937B SE 1727668 A SE1727668 A SE 1727668A SE 1727668 A SE1727668 A SE 1727668A SE 339937 B SE339937 B SE 339937B
- 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
- C01B25/18—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
- 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)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19671667435 DE1667435C2 (de) | 1967-12-19 | 1967-12-19 | Verfahren zur Herstellung fluorarmer Phosphorsäure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE339937B true SE339937B (en:Method) | 1971-11-01 |
Family
ID=5685962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1727668A SE339937B (en:Method) | 1967-12-19 | 1968-12-17 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1667435B1 (en:Method) |
| FR (1) | FR1595086A (en:Method) |
| SE (1) | SE339937B (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS516894A (en) * | 1974-07-09 | 1976-01-20 | Toyo Soda Mfg Co Ltd | Seiseirinsanno seizoho |
| WO1989003805A2 (en) * | 1987-10-30 | 1989-05-05 | Designer Premixes Inc. | Production of low-fluorine calcium phosphate and phosphoric acid and of silica |
-
1967
- 1967-12-19 DE DE1967C0044186 patent/DE1667435B1/de active Pending
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1968
- 1968-12-13 FR FR1595086D patent/FR1595086A/fr not_active Expired
- 1968-12-17 SE SE1727668A patent/SE339937B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1595086A (en:Method) | 1970-06-08 |
| DE1667435B1 (de) | 1971-09-16 |