FR2272029B2 - - Google Patents
Info
- Publication number
- FR2272029B2 FR2272029B2 FR7417425A FR7417425A FR2272029B2 FR 2272029 B2 FR2272029 B2 FR 2272029B2 FR 7417425 A FR7417425 A FR 7417425A FR 7417425 A FR7417425 A FR 7417425A FR 2272029 B2 FR2272029 B2 FR 2272029B2
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
- C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
- C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed
- C01B25/225—Dihydrate process
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Filtration Of Liquid (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7417425A FR2272029A2 (en) | 1974-05-20 | 1974-05-20 | Phosphoric acid prodn. - comprising adding flocculating agent to crude phosphate which has no other pretreatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7417425A FR2272029A2 (en) | 1974-05-20 | 1974-05-20 | Phosphoric acid prodn. - comprising adding flocculating agent to crude phosphate which has no other pretreatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2272029A2 FR2272029A2 (en) | 1975-12-19 |
| FR2272029B2 true FR2272029B2 (US20080293856A1-20081127-C00150.png) | 1978-08-04 |
Family
ID=9139050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7417425A Granted FR2272029A2 (en) | 1974-05-20 | 1974-05-20 | Phosphoric acid prodn. - comprising adding flocculating agent to crude phosphate which has no other pretreatment |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2272029A2 (US20080293856A1-20081127-C00150.png) |
-
1974
- 1974-05-20 FR FR7417425A patent/FR2272029A2/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2272029A2 (en) | 1975-12-19 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property | ||
| AM | Act modifying the rights related to an application or a patent |