FR2524457B1 - - Google Patents
Info
- Publication number
- FR2524457B1 FR2524457B1 FR8205764A FR8205764A FR2524457B1 FR 2524457 B1 FR2524457 B1 FR 2524457B1 FR 8205764 A FR8205764 A FR 8205764A FR 8205764 A FR8205764 A FR 8205764A FR 2524457 B1 FR2524457 B1 FR 2524457B1
- 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
- C01B25/226—Hemihydrate process
-
- 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)
- Paper (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE0/207723A BE892717A (en) | 1982-03-31 | 1982-03-31 | PROCESS FOR OBTAINING PHOSPHORIC EXTRACTION ACID |
| FR8205764A FR2524457A1 (en) | 1982-03-31 | 1982-04-02 | Wet process phosphoric acid prodn. - which, during air treatment stage, regulates volume of air to reaction pulp and regulates density of recycled stream |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE0/207723A BE892717A (en) | 1982-03-31 | 1982-03-31 | PROCESS FOR OBTAINING PHOSPHORIC EXTRACTION ACID |
| BE892717 | 1982-03-31 | ||
| FR8205764A FR2524457A1 (en) | 1982-03-31 | 1982-04-02 | Wet process phosphoric acid prodn. - which, during air treatment stage, regulates volume of air to reaction pulp and regulates density of recycled stream |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2524457A1 FR2524457A1 (en) | 1983-10-07 |
| FR2524457B1 true FR2524457B1 (en) | 1984-06-22 |
Family
ID=27158726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8205764A Granted FR2524457A1 (en) | 1982-03-31 | 1982-04-02 | Wet process phosphoric acid prodn. - which, during air treatment stage, regulates volume of air to reaction pulp and regulates density of recycled stream |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE892717A (en) |
| FR (1) | FR2524457A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2644767A1 (en) * | 1989-03-22 | 1990-09-28 | Voskresensky Ni | Device for cooling a reaction mass in a reactor for the production of phosphoric acid |
| FR2659954A1 (en) * | 1990-03-22 | 1991-09-27 | Voskresensky Ni | Process for the preparation of phosphoric acid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU582198A1 (en) * | 1975-08-11 | 1977-11-30 | Предприятие П/Я В-8830 | Method of preparing phosphoric acid |
-
1982
- 1982-03-31 BE BE0/207723A patent/BE892717A/en not_active IP Right Cessation
- 1982-04-02 FR FR8205764A patent/FR2524457A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2524457A1 (en) | 1983-10-07 |
| BE892717A (en) | 1982-09-30 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |