GB973511A - Aqueous fertilizer suspensions and a process for their preparation - Google Patents
Aqueous fertilizer suspensions and a process for their preparationInfo
- Publication number
- GB973511A GB973511A GB1493562A GB1493562A GB973511A GB 973511 A GB973511 A GB 973511A GB 1493562 A GB1493562 A GB 1493562A GB 1493562 A GB1493562 A GB 1493562A GB 973511 A GB973511 A GB 973511A
- Authority
- GB
- United Kingdom
- Prior art keywords
- calcium
- nitrogen oxides
- slurry
- ammonia
- aqueous
- 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
- C05B11/14—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 wet gaseous acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
An aqueous fertilizer suspension is prepared by oxidizing ammonia to nitrogen oxides and contacting these with an aqueous slurry of a calcium-containing compound from the group: phosphate rock, limestone, and dolomite, or a mixture of two or more of the said calcium compounds, the aqueous slurry having a weight ratio of water to calcium compound in the range 0.5:1 to 3:1. The temperature of the slurry may be from 50 DEG F. to 80 DEG F. and it may flow through an absorber countercurrently to the mixture of nitrogen oxides, previously water-cooled. Excess nitrogen oxides in the acidulated slurry may be stripped therefrom. Part of the product obtained may be cooled to 80 DEG to 200 DEG F. and recycled to the absorber for further contact with nitrogen oxides. At least part of the aqueous slurry of calcium-containing compound may be fed into the recycle stream prior to entry to the absorption unit. After withdrawal of the recycle stream, if any, additives (e.g. ammonia, calcium carbonate, muriate of potash and trace elements) may be added to the fertilizer suspension. A magnesium or aluminium salt, e.g. magnesium sulphate, may be added prior to addition of ammonia in order to prevent reversion of phosphate to insoluble forms on neutralization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1493562A GB973511A (en) | 1962-04-17 | 1962-04-17 | Aqueous fertilizer suspensions and a process for their preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1493562A GB973511A (en) | 1962-04-17 | 1962-04-17 | Aqueous fertilizer suspensions and a process for their preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB973511A true GB973511A (en) | 1964-10-28 |
Family
ID=10050143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1493562A Expired GB973511A (en) | 1962-04-17 | 1962-04-17 | Aqueous fertilizer suspensions and a process for their preparation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB973511A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151865A (en) * | 2015-04-13 | 2016-11-23 | 天津航天瑞莱科技有限公司 | A kind of for pipeline low-temperature cyclic loading test system |
-
1962
- 1962-04-17 GB GB1493562A patent/GB973511A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151865A (en) * | 2015-04-13 | 2016-11-23 | 天津航天瑞莱科技有限公司 | A kind of for pipeline low-temperature cyclic loading test system |
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