FR2172804A1 - - Google Patents
Info
- Publication number
- FR2172804A1 FR2172804A1 FR7205977A FR7205977A FR2172804A1 FR 2172804 A1 FR2172804 A1 FR 2172804A1 FR 7205977 A FR7205977 A FR 7205977A FR 7205977 A FR7205977 A FR 7205977A FR 2172804 A1 FR2172804 A1 FR 2172804A1
- 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.)
- Granted
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Paper (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722204109 DE2204109C3 (de) | 1972-01-28 | Verfahren zur Herstellung von Phosphorsäure | |
GB479572A GB1370534A (en) | 1972-01-28 | 1972-02-02 | Method for the production of phosphoric acid |
FR7205977A FR2172804B1 (enrdf_load_stackoverflow) | 1972-01-28 | 1972-02-22 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722204109 DE2204109C3 (de) | 1972-01-28 | Verfahren zur Herstellung von Phosphorsäure | |
GB479572A GB1370534A (en) | 1972-01-28 | 1972-02-02 | Method for the production of phosphoric acid |
FR7205977A FR2172804B1 (enrdf_load_stackoverflow) | 1972-01-28 | 1972-02-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2172804A1 true FR2172804A1 (enrdf_load_stackoverflow) | 1973-10-05 |
FR2172804B1 FR2172804B1 (enrdf_load_stackoverflow) | 1976-07-09 |
Family
ID=27184068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7205977A Expired FR2172804B1 (enrdf_load_stackoverflow) | 1972-01-28 | 1972-02-22 |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2172804B1 (enrdf_load_stackoverflow) |
GB (1) | GB1370534A (enrdf_load_stackoverflow) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2464921A1 (fr) | 1979-09-07 | 1981-03-20 | Grp Franco Senegal Etud | Procede de traitement d'un phosphate aluminocalcique |
JPS63144107A (ja) * | 1986-12-08 | 1988-06-16 | Mitsui Toatsu Chem Inc | 高濃度燐酸−半水石こうスラリ−の濾過方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2064833A (en) * | 1932-03-30 | 1936-12-22 | Dorr Co Inc | Cooling of liquids |
CH293705A (de) * | 1949-06-18 | 1953-10-15 | Nordengren & Co Ab | Verfahren zur Herstellung von Phosphorsäure. |
US3003852A (en) * | 1955-02-16 | 1961-10-10 | Kemishka Patenter Ab | Production of orthophosphoric acid |
US3193351A (en) * | 1961-07-05 | 1965-07-06 | Nat Distillers Chem Corp | Removal of fluorine from wet process prosphoric acid |
FR1578220A (enrdf_load_stackoverflow) * | 1967-07-07 | 1969-08-14 |
-
1972
- 1972-02-02 GB GB479572A patent/GB1370534A/en not_active Expired
- 1972-02-22 FR FR7205977A patent/FR2172804B1/fr not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2064833A (en) * | 1932-03-30 | 1936-12-22 | Dorr Co Inc | Cooling of liquids |
CH293705A (de) * | 1949-06-18 | 1953-10-15 | Nordengren & Co Ab | Verfahren zur Herstellung von Phosphorsäure. |
US3003852A (en) * | 1955-02-16 | 1961-10-10 | Kemishka Patenter Ab | Production of orthophosphoric acid |
US3193351A (en) * | 1961-07-05 | 1965-07-06 | Nat Distillers Chem Corp | Removal of fluorine from wet process prosphoric acid |
FR1578220A (enrdf_load_stackoverflow) * | 1967-07-07 | 1969-08-14 |
Also Published As
Publication number | Publication date |
---|---|
DE2204109A1 (de) | 1973-08-02 |
GB1370534A (en) | 1974-10-16 |
DE2204109B2 (de) | 1975-08-28 |
FR2172804B1 (enrdf_load_stackoverflow) | 1976-07-09 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |