GB385280A - Method of producing soluble phosphates in solid state - Google Patents
Method of producing soluble phosphates in solid stateInfo
- Publication number
- GB385280A GB385280A GB8203/31A GB820331A GB385280A GB 385280 A GB385280 A GB 385280A GB 8203/31 A GB8203/31 A GB 8203/31A GB 820331 A GB820331 A GB 820331A GB 385280 A GB385280 A GB 385280A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonia
- dry salt
- mass
- hot air
- mixed
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
<PICT:0385280/III/1> Solid ammonium phosphates are obtained from the moist reaction mass, obtained by dissolving phosphate rock in acid, precipitating lime as calcium sulphate and neutralizing with ammonia, by mixing the mass with finished dried material, and drying. Phosphoric acid, obtained by leaching phosphate rock, is treated in vessels a with ammonia in counter-current. The product is mixed in B with so much dry salt as to give a solid non-sticky mass which is supplied to a hot air dryer D, crushed in a disintegrator E, and screened between two screens F1, F2. The material passing only the coarser screen F1 is marketed, while that passing the lower screen is collected at C and returned to the mixer B. According to an example, 32,7 litres of phosphoric acid, specific gravity 1,415, are preheated to 107 DEG C. and neutralized with 12 kgs. of ammonia gas, the temperature first rising to 110 DEG C. and dropping to 78 DEG C. The product is mixed with the dry salt, in the proportion of 2 parts of moist magma to 3 parts of dry salt, and dried with hot air.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE385280X | 1930-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB385280A true GB385280A (en) | 1932-12-22 |
Family
ID=20309231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8203/31A Expired GB385280A (en) | 1930-04-03 | 1931-03-17 | Method of producing soluble phosphates in solid state |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB385280A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1018073B (en) * | 1955-10-19 | 1957-10-24 | Chem Fab Kalk Ges Mit Beschrae | Process for the production of multi-nutrient fertilizers |
-
1931
- 1931-03-17 GB GB8203/31A patent/GB385280A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1018073B (en) * | 1955-10-19 | 1957-10-24 | Chem Fab Kalk Ges Mit Beschrae | Process for the production of multi-nutrient fertilizers |
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