GB1371270A - Method of producing a citrate-soluble calcined alkali metal phosphate fertiliser - Google Patents
Method of producing a citrate-soluble calcined alkali metal phosphate fertiliserInfo
- Publication number
- GB1371270A GB1371270A GB1843972A GB1843972A GB1371270A GB 1371270 A GB1371270 A GB 1371270A GB 1843972 A GB1843972 A GB 1843972A GB 1843972 A GB1843972 A GB 1843972A GB 1371270 A GB1371270 A GB 1371270A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali metal
- present
- phosphate
- silica
- mole
- 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
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
- C05B13/02—Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
1371270 Phosphate fertilizer KALI-CHEMIE AG 20 April 1972 [5 June 1971] 18439/72 Heading C1A A calcined alkali metal phosphate fertilizer is made by reacting, in a rotary kiln, a natural calcium phosphate feed with optionally extra added silica with alkali metal hydroxide, the hydroxide being introduced such that it contacts the phosphate feed when the latter has been heated to a temperature of at least 400 C., the rotary motion of the kiln effecting homogenization and passage of the product to the calcining zone at 900-1300 C., the proportion of reactants being such that 1À1 to 1À5 moles of alkali metal oxide are present per mole of P2O5 and the total amount of silica present being such that calcium orthosilicate forms by reaction of the silica with one mole of CaO from each mole of the tricalcium phosphate present and with any free lime present.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712128133 DE2128133C3 (en) | 1971-06-05 | Process for the production of fertilizer-active alkali annealing phosphates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1371270A true GB1371270A (en) | 1974-10-23 |
Family
ID=5810034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1843972A Expired GB1371270A (en) | 1971-06-05 | 1972-04-20 | Method of producing a citrate-soluble calcined alkali metal phosphate fertiliser |
Country Status (20)
| Country | Link |
|---|---|
| JP (1) | JPS5545520B1 (en) |
| AU (1) | AU464270B2 (en) |
| BE (1) | BE783173A (en) |
| BR (1) | BR7203318D0 (en) |
| CA (1) | CA963632A (en) |
| DD (1) | DD96477A1 (en) |
| DK (2) | DK132397B (en) |
| ES (1) | ES401503A1 (en) |
| FI (1) | FI52212C (en) |
| FR (1) | FR2140401B1 (en) |
| GB (1) | GB1371270A (en) |
| HU (1) | HU163418B (en) |
| IL (1) | IL39361A (en) |
| IT (1) | IT956123B (en) |
| NL (1) | NL165138C (en) |
| NO (1) | NO133135C (en) |
| PL (1) | PL81825B1 (en) |
| SE (1) | SE367178B (en) |
| SU (1) | SU441259A1 (en) |
| ZA (1) | ZA723831B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117105193A (en) * | 2023-08-23 | 2023-11-24 | 西南科技大学 | Efficient production method of calcium phosphate-based additive |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2709016C3 (en) * | 1977-03-02 | 1980-01-10 | Kali-Chemie Ag, 3000 Hannover | Process for the production of an alkaline calcined phosphate fertilizer |
| EP0041504B1 (en) * | 1979-09-07 | 1984-06-13 | National Research Development Corporation | Fertilizer material from apatite |
-
1972
- 1972-04-06 ES ES401503A patent/ES401503A1/en not_active Expired
- 1972-04-14 NL NL7205065.A patent/NL165138C/en active
- 1972-04-20 GB GB1843972A patent/GB1371270A/en not_active Expired
- 1972-04-21 SU SU1777279A patent/SU441259A1/en active
- 1972-05-04 IL IL39361A patent/IL39361A/en unknown
- 1972-05-05 AU AU41944/72A patent/AU464270B2/en not_active Expired
- 1972-05-08 BE BE783173A patent/BE783173A/en unknown
- 1972-05-16 FI FI721380A patent/FI52212C/en active
- 1972-05-19 FR FR7218099A patent/FR2140401B1/fr not_active Expired
- 1972-05-25 BR BR3318/72A patent/BR7203318D0/en unknown
- 1972-05-29 DD DD163275A patent/DD96477A1/xx unknown
- 1972-06-02 CA CA143,706A patent/CA963632A/en not_active Expired
- 1972-06-02 SE SE07303/72A patent/SE367178B/xx unknown
- 1972-06-02 DK DK275272AA patent/DK132397B/en unknown
- 1972-06-02 DK DK275172A patent/DK132397C/en active
- 1972-06-02 NO NO1967/72A patent/NO133135C/no unknown
- 1972-06-03 JP JP5554772A patent/JPS5545520B1/ja active Pending
- 1972-06-03 PL PL1972155788A patent/PL81825B1/pl unknown
- 1972-06-03 IT IT25220/72A patent/IT956123B/en active
- 1972-06-05 HU HUKA1344A patent/HU163418B/hu unknown
- 1972-06-05 ZA ZA723831A patent/ZA723831B/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117105193A (en) * | 2023-08-23 | 2023-11-24 | 西南科技大学 | Efficient production method of calcium phosphate-based additive |
Also Published As
| Publication number | Publication date |
|---|---|
| IL39361A0 (en) | 1972-07-26 |
| ZA723831B (en) | 1973-03-28 |
| PL81825B1 (en) | 1975-10-31 |
| BE783173A (en) | 1972-09-01 |
| FI52212B (en) | 1977-03-31 |
| DK132397B (en) | 1975-12-01 |
| DK132397C (en) | 1976-06-08 |
| AU464270B2 (en) | 1975-08-21 |
| AU4194472A (en) | 1973-11-08 |
| NO133135C (en) | 1976-03-17 |
| BR7203318D0 (en) | 1973-05-03 |
| DE2128133A1 (en) | 1972-12-28 |
| FR2140401A1 (en) | 1973-01-19 |
| SE367178B (en) | 1974-05-20 |
| FI52212C (en) | 1977-07-11 |
| NL7205065A (en) | 1972-12-07 |
| HU163418B (en) | 1973-08-28 |
| NL165138B (en) | 1980-10-15 |
| SU441259A1 (en) | 1974-08-30 |
| CA963632A (en) | 1975-03-04 |
| JPS5545520B1 (en) | 1980-11-18 |
| FR2140401B1 (en) | 1979-03-16 |
| NL165138C (en) | 1981-03-16 |
| DE2128133B2 (en) | 1977-03-17 |
| IT956123B (en) | 1973-10-10 |
| ES401503A1 (en) | 1975-02-16 |
| NO133135B (en) | 1975-12-08 |
| DD96477A1 (en) | 1973-03-20 |
| IL39361A (en) | 1975-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 416 | Proceeding under section 16 patents act 1949 | ||
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |