FR2319576A1 - Procede de production d'acide phosphorique a partir de minerai de phosphate de calcium - Google Patents
Procede de production d'acide phosphorique a partir de minerai de phosphate de calciumInfo
- Publication number
- FR2319576A1 FR2319576A1 FR7623508A FR7623508A FR2319576A1 FR 2319576 A1 FR2319576 A1 FR 2319576A1 FR 7623508 A FR7623508 A FR 7623508A FR 7623508 A FR7623508 A FR 7623508A FR 2319576 A1 FR2319576 A1 FR 2319576A1
- Authority
- FR
- France
- Prior art keywords
- production
- phosphoric acid
- calcium phosphate
- phosphate ore
- ore
- Prior art date
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB32352/75A GB1557663A (en) | 1975-08-01 | 1975-08-01 | Process for preparing phosphore acid |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2319576A1 true FR2319576A1 (fr) | 1977-02-25 |
FR2319576B3 FR2319576B3 (fr) | 1979-04-27 |
Family
ID=10337301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7623508A Granted FR2319576A1 (fr) | 1975-08-01 | 1976-07-30 | Procede de production d'acide phosphorique a partir de minerai de phosphate de calcium |
Country Status (7)
Country | Link |
---|---|
US (1) | US4071603A (fr) |
BE (1) | BE844706A (fr) |
DE (1) | DE2634695A1 (fr) |
FR (1) | FR2319576A1 (fr) |
GB (1) | GB1557663A (fr) |
NL (1) | NL7608489A (fr) |
ZA (1) | ZA764515B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2492358A1 (fr) * | 1980-10-20 | 1982-04-23 | Davy Mckee Ltd | Procede de fabrication d'acide phosphorique par voie humide a partir de roche phosphatee |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2009277498B2 (en) | 2008-07-31 | 2012-07-12 | Yoshino Gypsum Co., Ltd. | Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL137436C (fr) * | 1960-10-26 | |||
BE621425A (fr) * | 1962-06-23 | |||
US3416887A (en) * | 1964-08-05 | 1968-12-17 | Central Glass Co Ltd | Method of manufacturing wet process phosphoric acid |
GB1135951A (en) * | 1965-02-12 | 1968-12-11 | Fisons Ltd | Phosphoric acid |
US3522003A (en) * | 1966-01-03 | 1970-07-28 | Pullman Inc | Process and apparatus for producing phosphoric acid from phosphate rock |
US3523754A (en) * | 1966-04-02 | 1970-08-11 | Central Glass Co Ltd | Process for preparing phosphoric acil |
US3453076A (en) * | 1966-05-09 | 1969-07-01 | Lummus Co | Phosphoric acid process |
US3552918A (en) * | 1966-11-08 | 1971-01-05 | Dorr Oliver Inc | Process for the production of phosphoric acid |
GB1209911A (en) * | 1967-02-01 | 1970-10-21 | Marchon Products Ltd | Manufacture of phosphoric acid |
US3653826A (en) * | 1967-09-21 | 1972-04-04 | Nissan Chemical Ind Ltd | Process for the production of phosphoric acid at a high concentration and a gypsum by-product of improved quality |
US3627485A (en) * | 1968-11-05 | 1971-12-14 | Nippon Kokan Kk | Method of producing calcium sulfate dihydrate |
-
1975
- 1975-08-01 GB GB32352/75A patent/GB1557663A/en not_active Expired
-
1976
- 1976-07-27 ZA ZA764515A patent/ZA764515B/xx unknown
- 1976-07-28 US US05/709,388 patent/US4071603A/en not_active Expired - Lifetime
- 1976-07-30 BE BE169398A patent/BE844706A/fr unknown
- 1976-07-30 NL NL7608489A patent/NL7608489A/xx unknown
- 1976-07-30 FR FR7623508A patent/FR2319576A1/fr active Granted
- 1976-08-02 DE DE19762634695 patent/DE2634695A1/de active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2492358A1 (fr) * | 1980-10-20 | 1982-04-23 | Davy Mckee Ltd | Procede de fabrication d'acide phosphorique par voie humide a partir de roche phosphatee |
Also Published As
Publication number | Publication date |
---|---|
ZA764515B (en) | 1977-07-27 |
BE844706A (fr) | 1977-01-31 |
US4071603A (en) | 1978-01-31 |
FR2319576B3 (fr) | 1979-04-27 |
NL7608489A (nl) | 1977-02-03 |
DE2634695A1 (de) | 1977-02-10 |
GB1557663A (en) | 1979-12-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |