GB154562A - Improved process for the manufacture of a mixed manure containing a variable amount of nitrogen and phosphates - Google Patents
Improved process for the manufacture of a mixed manure containing a variable amount of nitrogen and phosphatesInfo
- Publication number
- GB154562A GB154562A GB25340/20A GB2534020A GB154562A GB 154562 A GB154562 A GB 154562A GB 25340/20 A GB25340/20 A GB 25340/20A GB 2534020 A GB2534020 A GB 2534020A GB 154562 A GB154562 A GB 154562A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potassium
- phosphates
- nitrogen
- manufacture
- improved process
- 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
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The process of the parent Specification is modified by the use of acid salts for effecting the conversion of the cyanamide into urea. The acid salt may contain an element, such as potassium, of manurial value. For example, sodium or potassium bisulphate may be used, the solution concentrated in vacuo, and calcium or other insoluble phosphate added, whereupon a compact mass is obtained. Instead of an insoluble phosphate there can be added other substances, such as kainite, silicates of potassium or magnesium, or fluorides, which are converted by acids into bodies of greater manurial value, or which by taking up water reduce the necessity for evaporation.ALSO:The process described in the parent Specification is modified by the use of acid salts for effecting the conversion of cyanamide into urea. The acid salt may contain an element, such as potassium, of manurial value. For example, sodium or potassium bisulphate may be used, the solution concentrated in vacuo, and calcium or other insoluble phosphate added, whereupon a compact mass is obtained.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH154562X | 1919-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB154562A true GB154562A (en) | 1921-12-02 |
Family
ID=4409244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25340/20A Expired GB154562A (en) | 1919-11-25 | 1920-09-02 | Improved process for the manufacture of a mixed manure containing a variable amount of nitrogen and phosphates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB154562A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114599628A (en) * | 2019-08-28 | 2022-06-07 | 德国钾盐公司 | Fertilizer granules containing magnesium, sulfate and urea |
-
1920
- 1920-09-02 GB GB25340/20A patent/GB154562A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114599628A (en) * | 2019-08-28 | 2022-06-07 | 德国钾盐公司 | Fertilizer granules containing magnesium, sulfate and urea |
| CN114599628B (en) * | 2019-08-28 | 2023-09-22 | 德国钾盐公司 | Fertilizer granules containing magnesium, sulphate and urea |
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