ES340152A1 - Production of granular fertilizers - Google Patents
Production of granular fertilizersInfo
- Publication number
- ES340152A1 ES340152A1 ES340152A ES340152A ES340152A1 ES 340152 A1 ES340152 A1 ES 340152A1 ES 340152 A ES340152 A ES 340152A ES 340152 A ES340152 A ES 340152A ES 340152 A1 ES340152 A1 ES 340152A1
- Authority
- ES
- Spain
- Prior art keywords
- granulator
- acid
- diammonium
- sulphuric
- ammonia
- 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
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
A mixture of phosphoric acid and sulphuric acid is partially neutralized with sufficient ammonia to neutralize all the sulphuric acid to diammonium sulphate plus an additional amount of ammonia not exceeding 0À8 moles per mole of the phosphoric acid to form a slurry which, together with particles comprising diammonium phosphate and sulphate and with at least sufficient ammonia to convert the acid and monoammonium salts present in said slurry to the corresponding diammonium salts, is passed to an ammoniator-granulator. The phosphoric and sulphuric acids suitably contain from 55-70 and from 95-98% by weight of the respective acids and if desired from 15- 40% of the total sulphuric acid may be directly added to the granulator. The fully neutralized granulate is sieved and undersized product is returned to the granulator at a weight ratio of 1À5 to 5 times the amount of product granules. Potassium chloride may be added to the granulator to provide a balanced fertilizer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US56880066A | 1966-07-29 | 1966-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES340152A1 true ES340152A1 (en) | 1968-06-01 |
Family
ID=24272793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES340152A Expired ES340152A1 (en) | 1966-07-29 | 1967-05-05 | Production of granular fertilizers |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE699155A (en) |
| DE (1) | DE1592625A1 (en) |
| ES (1) | ES340152A1 (en) |
| GB (1) | GB1147545A (en) |
| NL (1) | NL6705494A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR872024B (en) * | 1987-12-28 | 1988-01-11 | Viomihania Fosforikon Lipasmat | Production of np,npk fertilisers from nitrophosphoric paste with a high proportion of added p2o5 |
| FI105472B (en) * | 1998-05-15 | 2000-08-31 | Kemira Agro Oy | Multi-suspension process for the preparation of a fertilizer |
-
1967
- 1967-04-11 GB GB1640267A patent/GB1147545A/en not_active Expired
- 1967-04-19 DE DE19671592625 patent/DE1592625A1/en active Pending
- 1967-04-19 NL NL6705494A patent/NL6705494A/xx unknown
- 1967-05-05 ES ES340152A patent/ES340152A1/en not_active Expired
- 1967-05-29 BE BE699155D patent/BE699155A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1147545A (en) | 1969-04-02 |
| NL6705494A (en) | 1968-01-30 |
| DE1592625A1 (en) | 1971-01-21 |
| BE699155A (en) | 1967-11-29 |
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