GB904860A - Production of nitrates - Google Patents
Production of nitratesInfo
- Publication number
- GB904860A GB904860A GB2731057A GB2731057A GB904860A GB 904860 A GB904860 A GB 904860A GB 2731057 A GB2731057 A GB 2731057A GB 2731057 A GB2731057 A GB 2731057A GB 904860 A GB904860 A GB 904860A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction
- nitric acid
- alkali metal
- concentration
- acid
- 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
- C05B11/06—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 using nitric acid (nitrophosphates)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
Alkali metal nitrates are prepared by the reaction of alkali metal chlorides with nitric acid, the nitric acid in the final part of the reaction being maintained at a concentration of at least 40%, for example by distilling the reaction mixture, or by the addition of fresh nitric acid. The reaction may be carried out in stages in two or more reaction vessels, for example in three reaction vessels arranged as a cascade, and the distillation of the mixture may be confined to the final vessel. Nitrosyl chloride and chlorine are also formed during the reaction. The nitrate solution may be heated to recover the nitrate, or it may be reacted with phosphate rock or phosphoric acid to produce complex fertilizers (see Group I). Specifations 876,564 and 876,565 are referred to.ALSO:Complex fertilizers may be prepared by treating the alkali metal nitrate solution obtained by reacting alkali metal chlorides with nitric acid, such that the concentration of the nitric acid in the final part of the reaction is at least 40%, with phosphoric acid or phosphate rock in particulate form. Desirably the alkali metal is potassium, the nitric acid is employed in excess of 4 mols acid per 3 mols chloride, and the concentration of the nitric acid in the final part of the reaction is adjusted by distilling the reaction mixture. Specifications 876,564 and 876,565 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2731057A GB904860A (en) | 1957-08-30 | 1957-08-30 | Production of nitrates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2731057A GB904860A (en) | 1957-08-30 | 1957-08-30 | Production of nitrates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB904860A true GB904860A (en) | 1962-08-29 |
Family
ID=10257498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2731057A Expired GB904860A (en) | 1957-08-30 | 1957-08-30 | Production of nitrates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB904860A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1592695B1 (en) * | 1965-04-21 | 1970-12-23 | Lentia Gmbh Chem Und Pharm Erz | Process for the production of a granulated, chloride-free NPK fertilizer |
-
1957
- 1957-08-30 GB GB2731057A patent/GB904860A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1592695B1 (en) * | 1965-04-21 | 1970-12-23 | Lentia Gmbh Chem Und Pharm Erz | Process for the production of a granulated, chloride-free NPK fertilizer |
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