GB430380A - Improvements in the manufacture and production of mixed fertilisers containing lime - Google Patents
Improvements in the manufacture and production of mixed fertilisers containing limeInfo
- Publication number
- GB430380A GB430380A GB12971/34A GB1297134A GB430380A GB 430380 A GB430380 A GB 430380A GB 12971/34 A GB12971/34 A GB 12971/34A GB 1297134 A GB1297134 A GB 1297134A GB 430380 A GB430380 A GB 430380A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonia
- production
- acid
- manufacture
- containing lime
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
- F01L3/085—Valve cages
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fertilizers (AREA)
Abstract
In the production of mixed fertilizers containing nitrogen, phosphorus and lime by decomposing crude phosphates with acids, e.g. nitric and/or phosphoric acid, the acid decomposition solution so obtained is introduced together with ammonia into a considerable amount of the acid decomposition solution already neutralized with ammonia, in such proportions that the solution always reacts neutral or slightly acid. The resulting product which may have a pH of 4-6 may be treated with further ammonia in order to bring the pH to 6-7. The temperature may be such that water is evaporated by the heat of neutralization. Potash salts such as potassium chloride may be added at any stage of the process. The resulting melts may be granulated by spraying and any residual water then removed by drying. Examples are given.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE430380X | 1933-05-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB430380A true GB430380A (en) | 1935-06-18 |
Family
ID=6480022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12971/34A Expired GB430380A (en) | 1933-05-10 | 1934-04-30 | Improvements in the manufacture and production of mixed fertilisers containing lime |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR430380A (en) |
GB (1) | GB430380A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2555656A (en) * | 1941-04-04 | 1951-06-05 | Directie Staatsmijnen Nl | Process of producing a calcium phosphate |
US2555634A (en) * | 1945-06-12 | 1951-06-05 | Directie Staatsmijnen Nl | Production of phosphate materials |
US2611691A (en) * | 1948-06-04 | 1952-09-23 | Ruhrchemie Ag | Process of producing a compound fertilizer |
US2726949A (en) * | 1951-08-14 | 1955-12-13 | Potasse & Engrais Chimiques | Complex fertilizer and method of producing same |
US3121004A (en) * | 1960-06-01 | 1964-02-11 | Stamicarbon | Process of preparing a compound fertilizer containing nitrogen, calcium and phosphate, and resultant product |
US3130039A (en) * | 1962-04-11 | 1964-04-21 | California Research Corp | High analysis complex fertilizer preparation |
US3149957A (en) * | 1960-09-02 | 1964-09-22 | Stamicarbon N V Heerlen | Preparation of a granular compound fertilizer containing nu, p and k |
-
1911
- 1911-06-01 FR FR430380D patent/FR430380A/en not_active Expired
-
1934
- 1934-04-30 GB GB12971/34A patent/GB430380A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2555656A (en) * | 1941-04-04 | 1951-06-05 | Directie Staatsmijnen Nl | Process of producing a calcium phosphate |
US2555634A (en) * | 1945-06-12 | 1951-06-05 | Directie Staatsmijnen Nl | Production of phosphate materials |
US2611691A (en) * | 1948-06-04 | 1952-09-23 | Ruhrchemie Ag | Process of producing a compound fertilizer |
US2726949A (en) * | 1951-08-14 | 1955-12-13 | Potasse & Engrais Chimiques | Complex fertilizer and method of producing same |
US3121004A (en) * | 1960-06-01 | 1964-02-11 | Stamicarbon | Process of preparing a compound fertilizer containing nitrogen, calcium and phosphate, and resultant product |
US3149957A (en) * | 1960-09-02 | 1964-09-22 | Stamicarbon N V Heerlen | Preparation of a granular compound fertilizer containing nu, p and k |
US3130039A (en) * | 1962-04-11 | 1964-04-21 | California Research Corp | High analysis complex fertilizer preparation |
Also Published As
Publication number | Publication date |
---|---|
FR430380A (en) | 1911-10-14 |
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