GB1083916A - Improvements in or relating to ammonium phosphate and the production thereof - Google Patents
Improvements in or relating to ammonium phosphate and the production thereofInfo
- Publication number
- GB1083916A GB1083916A GB944165A GB944165A GB1083916A GB 1083916 A GB1083916 A GB 1083916A GB 944165 A GB944165 A GB 944165A GB 944165 A GB944165 A GB 944165A GB 1083916 A GB1083916 A GB 1083916A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- urea
- weight
- fertilizer
- relating
- 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
- C05B13/06—Alkali and alkaline earth meta- or polyphosphate fertilisers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
Ammonium polyphosphate produced by concentrating by heating wet-process orthophosphoric acid e.g. to at least 80% by weight on an impurity-free basis, until at least 70% (preferably at least 80%) of the P2O5 value thereof to the acyclic (i.e. polyphosphate) form and reacting the acid with ammonia and at 250-450 DEG F. The acid is preferably heated under a pressure of 20-400 lb/inch2, and is preferably concentrated to at least 80% (by weight IFB) of P2O5. The product may be mixed while liquid with fertilizer materials, for example, sources of nitrogen (e.g. urea), and/or potassium salts (added after urea), or trace mineral elements, and the resulting mixture which may be formed in discrete particles and then cooled to form a glass. The non-crystalline glass, having a homogeneous distribution of fertilizer, and meltable to a free-flowing liquid, is claimed per se.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US35592264A | 1964-03-30 | 1964-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1083916A true GB1083916A (en) | 1967-09-20 |
Family
ID=23399349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB944165A Expired GB1083916A (en) | 1964-03-30 | 1965-03-05 | Improvements in or relating to ammonium phosphate and the production thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1083916A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230429A (en) * | 2013-06-18 | 2014-12-24 | 深圳市芭田生态工程股份有限公司 | Powdered water-soluble NPK composite fertilizer and preparation method thereof |
| CN114560744A (en) * | 2022-03-14 | 2022-05-31 | 云南云天化股份有限公司 | Method for preparing polymorphic phosphorus compound fertilizer |
-
1965
- 1965-03-05 GB GB944165A patent/GB1083916A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230429A (en) * | 2013-06-18 | 2014-12-24 | 深圳市芭田生态工程股份有限公司 | Powdered water-soluble NPK composite fertilizer and preparation method thereof |
| CN114560744A (en) * | 2022-03-14 | 2022-05-31 | 云南云天化股份有限公司 | Method for preparing polymorphic phosphorus compound fertilizer |
| CN114560744B (en) * | 2022-03-14 | 2023-12-05 | 云南云天化股份有限公司 | Method for preparing multi-form phosphorus compound fertilizer |
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