IL59494A - Process for heat treating calcium phosphate rock and acidification thereof - Google Patents
Process for heat treating calcium phosphate rock and acidification thereofInfo
- Publication number
- IL59494A IL59494A IL59494A IL5949480A IL59494A IL 59494 A IL59494 A IL 59494A IL 59494 A IL59494 A IL 59494A IL 5949480 A IL5949480 A IL 5949480A IL 59494 A IL59494 A IL 59494A
- Authority
- IL
- Israel
- Prior art keywords
- acidification
- calcium phosphate
- heat treating
- phosphate rock
- treating calcium
- Prior art date
Links
- 229910000389 calcium phosphate Inorganic materials 0.000 title 1
- 239000001506 calcium phosphate Substances 0.000 title 1
- 235000011010 calcium phosphates Nutrition 0.000 title 1
- 230000020477 pH reduction Effects 0.000 title 1
- 239000011435 rock Substances 0.000 title 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 title 1
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
- 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
- C01B25/01—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
- C01B25/22—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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Fertilizers (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7907334 | 1979-03-01 | ||
| GB8005170 | 1980-02-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL59494A0 IL59494A0 (en) | 1980-05-30 |
| IL59494A true IL59494A (en) | 1984-03-30 |
Family
ID=26270744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL59494A IL59494A (en) | 1979-03-01 | 1980-02-28 | Process for heat treating calcium phosphate rock and acidification thereof |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE882001A (fr) |
| DE (1) | DE3007131A1 (fr) |
| ES (2) | ES489109A0 (fr) |
| FR (1) | FR2450230A1 (fr) |
| GB (1) | GB2048838B (fr) |
| IL (1) | IL59494A (fr) |
| IT (1) | IT1129803B (fr) |
| NL (1) | NL8001204A (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL72097A (en) * | 1984-06-13 | 1987-07-31 | Negev Phosphates Ltd | Process for a thermal treatment of israeli phosphate rock |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE368737C (de) * | 1921-07-15 | 1923-02-08 | Borax Cons Ltd | Verfahren zur Herstellung von Phosphorsaeure |
| US2799557A (en) * | 1952-10-11 | 1957-07-16 | Chemical Construction Corp | Production of feed grade dicalcium phosphate |
| US3122415A (en) * | 1960-10-10 | 1964-02-25 | Int Minerals & Chem Corp | Method for the production of phosphoric acid |
| US3133791A (en) * | 1961-06-14 | 1964-05-19 | Nat Distillers Chem Corp | Method of sludge inhibition in phosphoric acid |
| US4001383A (en) * | 1971-08-12 | 1977-01-04 | Stauffer Chemical Company | Impure sulfuric acid treatment process |
-
1980
- 1980-02-26 DE DE19803007131 patent/DE3007131A1/de not_active Withdrawn
- 1980-02-28 IL IL59494A patent/IL59494A/xx unknown
- 1980-02-28 NL NL8001204A patent/NL8001204A/nl not_active Application Discontinuation
- 1980-02-29 ES ES489109A patent/ES489109A0/es active Granted
- 1980-02-29 GB GB8006996A patent/GB2048838B/en not_active Expired
- 1980-02-29 BE BE0/199608A patent/BE882001A/fr not_active IP Right Cessation
- 1980-02-29 FR FR8004591A patent/FR2450230A1/fr not_active Withdrawn
- 1980-02-29 IT IT67316/80A patent/IT1129803B/it active
- 1980-10-31 ES ES496449A patent/ES496449A0/es active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2048838A (en) | 1980-12-17 |
| ES8105234A1 (es) | 1981-05-16 |
| IT1129803B (it) | 1986-06-11 |
| NL8001204A (nl) | 1980-09-03 |
| BE882001A (fr) | 1980-08-29 |
| IT8067316A0 (it) | 1980-02-29 |
| IL59494A0 (en) | 1980-05-30 |
| DE3007131A1 (de) | 1980-10-23 |
| GB2048838B (en) | 1983-05-18 |
| ES489109A0 (es) | 1981-05-16 |
| FR2450230A1 (fr) | 1980-09-26 |
| ES8107123A1 (es) | 1981-10-01 |
| ES496449A0 (es) | 1981-10-01 |
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