GB359020A - Improvements in the manufacture of fertilizers - Google Patents
Improvements in the manufacture of fertilizersInfo
- Publication number
- GB359020A GB359020A GB21279/30A GB2127930A GB359020A GB 359020 A GB359020 A GB 359020A GB 21279/30 A GB21279/30 A GB 21279/30A GB 2127930 A GB2127930 A GB 2127930A GB 359020 A GB359020 A GB 359020A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonium nitrate
- ammonia
- solid
- solution
- treating
- 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
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
A solid fertilizer is directly obtained by treating solid calcium acid phosphates with a solution or melt of ammonium nitrate and ammonia with or without water in subordinate amount. The solution of ammonium nitrate in ammonia may be prepared by adding solid ammonium nitrate to aqueous or anhydrous ammonia, by treating solid ammonium nitrate with gaseous ammonia or by treating nitric acid, e.g. of 40-85 per cent strength, with excess ammonia either liquid or gaseous. Other fertilizing salts or inert materials, e.g. sand, may be added before, during or after the treatment with ammonium nitrate solution. Specification 339,969, [Class 111, Sewage &c.], is referred to. The Specification as open to inspection under Sect. 91 (3)(a) states that any solid acid phosphatic material may be treated with ammonium nitrate in this way. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US359020XA | 1929-07-13 | 1929-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB359020A true GB359020A (en) | 1931-10-14 |
Family
ID=21885456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21279/30A Expired GB359020A (en) | 1929-07-13 | 1930-07-14 | Improvements in the manufacture of fertilizers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB359020A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1022239B (en) * | 1955-06-02 | 1958-01-09 | Lentia Gmbh | Process for the production of granulated multi-nutrient fertilizers |
-
1930
- 1930-07-14 GB GB21279/30A patent/GB359020A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1022239B (en) * | 1955-06-02 | 1958-01-09 | Lentia Gmbh | Process for the production of granulated multi-nutrient fertilizers |
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