FR2249031B1 - - Google Patents
Info
- Publication number
- FR2249031B1 FR2249031B1 FR7431028A FR7431028A FR2249031B1 FR 2249031 B1 FR2249031 B1 FR 2249031B1 FR 7431028 A FR7431028 A FR 7431028A FR 7431028 A FR7431028 A FR 7431028A FR 2249031 B1 FR2249031 B1 FR 2249031B1
- 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
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
- C05B13/06—Alkali and alkaline earth meta- or polyphosphate fertilisers
-
- 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
- C01B25/12—Oxides of phosphorus
-
- 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
- C01B25/26—Phosphates
- C01B25/38—Condensed phosphates
- C01B25/40—Polyphosphates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU731965967A SU560407A1 (ru) | 1973-10-29 | 1973-10-29 | Способ получени фосфатов кальци |
| SU741990652A SU710911A1 (ru) | 1974-02-11 | 1974-02-11 | Способ получени фтористого водорода |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2249031A1 FR2249031A1 (en) | 1975-05-23 |
| FR2249031B1 true FR2249031B1 (it) | 1976-10-22 |
Family
ID=26665496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7431028A Granted FR2249031A1 (en) | 1973-10-29 | 1974-09-13 | Processing rock phosphate with plasma jets - to form hydrogen fluoride, phosphorus pentoxide, polyphosphates and nitric acid |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2446844C3 (it) |
| FR (1) | FR2249031A1 (it) |
| IT (1) | IT1034071B (it) |
-
1974
- 1974-09-13 FR FR7431028A patent/FR2249031A1/fr active Granted
- 1974-09-18 IT IT2744974A patent/IT1034071B/it active
- 1974-10-01 DE DE19742446844 patent/DE2446844C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2446844B2 (de) | 1979-08-02 |
| DE2446844C3 (de) | 1980-04-03 |
| FR2249031A1 (en) | 1975-05-23 |
| IT1034071B (it) | 1979-09-10 |
| DE2446844A1 (de) | 1975-05-07 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |