CH476638A - Procédé de fabrication d'acide phosphorique - Google Patents
Procédé de fabrication d'acide phosphoriqueInfo
- Publication number
- CH476638A CH476638A CH945967A CH945967A CH476638A CH 476638 A CH476638 A CH 476638A CH 945967 A CH945967 A CH 945967A CH 945967 A CH945967 A CH 945967A CH 476638 A CH476638 A CH 476638A
- Authority
- CH
- Switzerland
- Prior art keywords
- phosphoric acid
- production process
- production
- phosphoric
- acid
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
- C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
- C05B11/06—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using nitric acid (nitrophosphates)
-
- 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
-
- 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
- C01B25/234—Purification; Stabilisation; Concentration
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Fertilizers (AREA)
- Dental Preparations (AREA)
- Processing Of Solid Wastes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR68128A FR1496160A (fr) | 1966-07-05 | 1966-07-05 | Procédé de fabrication d'acide phosphorique par extraction au moyen de solvants organiques à partir du produit de l'attaque nitrique des phosphates naturels |
Publications (1)
Publication Number | Publication Date |
---|---|
CH476638A true CH476638A (fr) | 1969-08-15 |
Family
ID=8612492
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH945867A CH476637A (fr) | 1966-07-05 | 1967-07-04 | Procédé de fabrication d'acide phosphorique |
CH945967A CH476638A (fr) | 1966-07-05 | 1967-07-04 | Procédé de fabrication d'acide phosphorique |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH945867A CH476637A (fr) | 1966-07-05 | 1967-07-04 | Procédé de fabrication d'acide phosphorique |
Country Status (11)
Country | Link |
---|---|
US (1) | US3497329A (fr) |
BE (1) | BE700911A (fr) |
CH (2) | CH476637A (fr) |
DE (1) | DE1667663A1 (fr) |
ES (1) | ES342080A1 (fr) |
FR (1) | FR1496160A (fr) |
GB (1) | GB1173517A (fr) |
IL (1) | IL28140A (fr) |
NL (1) | NL6707757A (fr) |
SE (1) | SE334867B (fr) |
YU (1) | YU31322B (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3956465A (en) * | 1970-06-12 | 1976-05-11 | Azote Et Produits Chimiques S.A. | Solvent purification of wet process phosphoric acid |
DE2321751C3 (de) * | 1973-04-30 | 1981-11-19 | Hoechst Ag, 6000 Frankfurt | Verfahren zur Reinigung von Naßphosphorsäure |
USD415082S (en) | 1998-03-20 | 1999-10-12 | Elegant Usa, Llc | Steering wheel cover |
FI107330B (fi) * | 1999-12-03 | 2001-07-13 | Kemira Agro Oy | Kahden alkalimetallisuolan valmistaminen yhdistetyllä ioninvaihto- ja kiteytysmenetelmällä |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE33843C (de) * | J. S. BOLETTE in Pepinster | Flortheiler für Vorspinnkrempel | ||
CA494045A (fr) * | 1953-06-30 | H. R. J. Plusje Mathijs | Methode de production circulatoire de phosphates de calcium d'acide et de nitrate de calcium de phosphate brute et d'acide nitrique | |
US1876501A (en) * | 1932-09-06 | Concentrated fertilizers | ||
NL65772C (fr) * | 1947-11-04 | |||
US2813777A (en) * | 1953-11-05 | 1957-11-19 | Norsk Hydro Elektrisk | Process for the crystallization of nitrate from a nitric acid solution of crude phosphate |
US2885265A (en) * | 1955-06-21 | 1959-05-05 | Horizons Inc | Process for producing substantially pure orthophosphoric acid |
NL127854C (fr) * | 1959-04-06 | |||
GB953156A (en) * | 1961-08-20 | 1964-03-25 | Makhtsavei Israel | Improvements in or relating to the recovery of phosphoric acid by solvent extraction |
GB974610A (en) * | 1962-05-24 | 1964-11-04 | Canadian Ind | Purification of phosphoric acid |
NL285346A (fr) * | 1962-11-09 | |||
US3388967A (en) * | 1964-07-20 | 1968-06-18 | Cominco Ltd Cominco Ltee | Phosphoric acid purification |
US3387930A (en) * | 1965-06-16 | 1968-06-11 | Dow Chemical Co | Process for the production of phosphoric acid |
-
1966
- 1966-07-05 FR FR68128A patent/FR1496160A/fr not_active Expired
-
1967
- 1967-06-02 NL NL6707757A patent/NL6707757A/xx unknown
- 1967-06-05 ES ES342080A patent/ES342080A1/es not_active Expired
- 1967-06-12 IL IL28140A patent/IL28140A/xx unknown
- 1967-06-28 YU YU1297/67A patent/YU31322B/xx unknown
- 1967-06-28 SE SE09510/67*A patent/SE334867B/xx unknown
- 1967-07-03 US US650880A patent/US3497329A/en not_active Expired - Lifetime
- 1967-07-04 BE BE700911D patent/BE700911A/xx unknown
- 1967-07-04 CH CH945867A patent/CH476637A/fr not_active IP Right Cessation
- 1967-07-04 CH CH945967A patent/CH476638A/fr not_active IP Right Cessation
- 1967-07-04 GB GB30774/67A patent/GB1173517A/en not_active Expired
- 1967-07-05 DE DE19671667663 patent/DE1667663A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1667663A1 (de) | 1971-07-01 |
SE334867B (fr) | 1971-05-10 |
FR1496160A (fr) | 1967-09-29 |
BE700911A (fr) | 1967-12-18 |
ES342080A1 (es) | 1968-07-16 |
YU31322B (en) | 1973-04-30 |
NL6707757A (fr) | 1968-01-08 |
IL28140A (en) | 1971-02-25 |
GB1173517A (en) | 1969-12-10 |
US3497329A (en) | 1970-02-24 |
CH476637A (fr) | 1969-08-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |