CA1042626A - Production de phosphates exempts de fluor - Google Patents
Production de phosphates exempts de fluorInfo
- Publication number
- CA1042626A CA1042626A CA236,917A CA236917A CA1042626A CA 1042626 A CA1042626 A CA 1042626A CA 236917 A CA236917 A CA 236917A CA 1042626 A CA1042626 A CA 1042626A
- Authority
- CA
- Canada
- Prior art keywords
- phosphoric acid
- solution
- phosphate
- alkali metal
- monocalcium phosphate
- 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.)
- 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
- C01B25/003—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
- C01B25/01—Treating phosphate ores or other raw phosphate materials to obtain phosphorus or phosphorus compounds
-
- 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
- C01B25/185—Preparation neither from elemental phosphorus or phosphoric anhydride nor by reacting phosphate-containing material with an acid, e.g. by reacting phosphate-containing material with an ion-exchange resin or an acid salt used alone
-
- 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
- C01B25/22—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
-
- 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
-
- 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
- C01B25/30—Alkali metal phosphates
-
- 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
- C01B25/30—Alkali metal phosphates
- C01B25/301—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates
- C01B25/303—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates with elimination of impurities
-
- 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
- C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
- C01B25/328—Defluorination during or after the preparation
-
- 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
- C01B25/46—Preparation involving solvent-solvent extraction
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/20—Halides
- C01F11/22—Fluorides
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
- C05D9/02—Other inorganic fertilisers containing trace elements
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Removal Of Specific Substances (AREA)
- Silicon Compounds (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51287774A | 1974-10-07 | 1974-10-07 | |
| US05/608,973 US4086322A (en) | 1974-10-07 | 1975-08-29 | Production of fluoride-free phosphates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1042626A true CA1042626A (fr) | 1978-11-21 |
Family
ID=27057693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA236,917A Expired CA1042626A (fr) | 1974-10-07 | 1975-10-02 | Production de phosphates exempts de fluor |
Country Status (8)
| Country | Link |
|---|---|
| BR (1) | BR7506392A (fr) |
| CA (1) | CA1042626A (fr) |
| DE (1) | DE2543632A1 (fr) |
| FR (1) | FR2287417A1 (fr) |
| GB (1) | GB1485227A (fr) |
| IL (1) | IL48207A (fr) |
| IT (1) | IT1047699B (fr) |
| MX (1) | MX3058E (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1115483A (fr) * | 1978-08-02 | 1982-01-05 | Erhart K. Drechsel | Obtention de phosphate monocalcique et d'acide phosphorique |
| CN113511924B (zh) * | 2020-04-09 | 2022-10-11 | 国家能源投资集团有限责任公司 | 液体硅钙肥及其制备方法和应用 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1173205A (en) * | 1966-06-03 | 1969-12-03 | Int Minerals & Chem Corp | Process for the Manufacture of Phosphate Fertilizers |
| US3554694A (en) * | 1969-06-02 | 1971-01-12 | Cities Service Co | Process for producing fluosilicates |
| DE2014014A1 (de) * | 1970-03-24 | 1971-10-07 | Knapsack Ag | Verfahren zur Herstellung von Phosphor |
| DE2050008B2 (de) * | 1970-10-12 | 1973-02-01 | Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim | Verfahren zur reinigung von technischer phosphorsaeure |
| US3792151A (en) * | 1971-10-18 | 1974-02-12 | Atlantic Richfield Co | Process for producing phosphoric acid |
| GB1436113A (en) * | 1972-04-26 | 1976-05-19 | Albright & Wilson | Purification of phosphoric acid |
| US3840640A (en) * | 1972-08-28 | 1974-10-08 | Pennzoil Co | Production of fluoride-free nitrates |
-
1975
- 1975-09-30 DE DE19752543632 patent/DE2543632A1/de active Granted
- 1975-09-30 IL IL48207A patent/IL48207A/xx unknown
- 1975-10-01 GB GB40089/75A patent/GB1485227A/en not_active Expired
- 1975-10-02 CA CA236,917A patent/CA1042626A/fr not_active Expired
- 1975-10-02 BR BR7506392*A patent/BR7506392A/pt unknown
- 1975-10-03 IT IT51653/75A patent/IT1047699B/it active
- 1975-10-06 FR FR7530524A patent/FR2287417A1/fr active Granted
- 1975-10-07 MX MX002821U patent/MX3058E/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2543632C2 (fr) | 1987-04-02 |
| MX3058E (es) | 1980-03-13 |
| FR2287417A1 (fr) | 1976-05-07 |
| IT1047699B (it) | 1980-10-20 |
| FR2287417B1 (fr) | 1981-11-20 |
| DE2543632A1 (de) | 1976-04-08 |
| BR7506392A (pt) | 1976-08-10 |
| GB1485227A (en) | 1977-09-08 |
| IL48207A0 (en) | 1975-11-25 |
| IL48207A (en) | 1978-12-17 |
Similar Documents
| Publication | Publication Date | Title |
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| US3420622A (en) | Process for obtaining fluorine compounds from digestion solutions of crude phosphates with nitric acid or hydrochloric acid | |
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| US4222990A (en) | Production of fluoride-free phosphates | |
| US3792151A (en) | Process for producing phosphoric acid | |
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| US4086322A (en) | Production of fluoride-free phosphates | |
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| US4160657A (en) | Preparation of monocalcium phosphate and phosphoric acid | |
| US4435370A (en) | Preparation of monocalcium phosphate and/or phosphoric acid from phosphate rock | |
| US3840639A (en) | Method for the production of fluoride-free potassium phosphates | |
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| US3366448A (en) | Method for treatment of impure phosphoric acid solutions to produce purified phosphoric acid | |
| US4060586A (en) | Recovery of fluorides from gypsum | |
| CA1042626A (fr) | Production de phosphates exempts de fluor | |
| CA1115483A (fr) | Obtention de phosphate monocalcique et d'acide phosphorique | |
| US3619136A (en) | Process for producing phosphoric acid | |
| CA1045339A (fr) | Procede et appareil de purification de l'acide phosphorique traite par voie humide | |
| US4191734A (en) | Fluoride-free phosphate reactions | |
| US3840640A (en) | Production of fluoride-free nitrates | |
| EP1171382A1 (fr) | Processus de production d'acide phosphorique par cristallisation de semi-hydrate d'acide phosphorique | |
| US2857245A (en) | Method for the production of dicalcium phosphate | |
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