SU1450266A1 - Method for production of diammonium phosphate - Google Patents
Method for production of diammonium phosphateInfo
- Publication number
- SU1450266A1 SU1450266A1 SU4106600/26A SU4106600A SU1450266A1 SU 1450266 A1 SU1450266 A1 SU 1450266A1 SU 4106600/26 A SU4106600/26 A SU 4106600/26A SU 4106600 A SU4106600 A SU 4106600A SU 1450266 A1 SU1450266 A1 SU 1450266A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- product
- ammonia
- mother liquor
- separation
- pulp
- Prior art date
Links
Abstract
FIELD: methods for production of feed and fertilizer ammonium phosphates applicable in cattle- breeding and agrochemistry. SUBSTANCE: method for production of diammonium phosphate includes treatment of extraction phosphoric acid with ammonia up to pH 6.5-7.5; separation of formed pulp into sediment of impurities and mother liquor by treatment of mother liquor with ammonia up to 9.5-10.0 with formation of triammonium phosphate; crystallization of triammonium phosphate by precipitation; separation of it from mother liquor, mixing of crystalline triammonium phosphate with initial phosphoric acid up to pH 7.6-8.2 with formation of pulp; separation of pulp by filtration into sediment of impurities and mother liquor, from which product is separated with its subsequent drying. Fluorine content in product amounts to 0.04%, product yield is 44.3%. Losses of ammonia does not exceed 10 mg/cu.m of gaseous effluent from drying unit. Air consumption for product drying is 1.5-1.8 thou. cu.m/t of product. Power saving per ton of product amounts to 120-125 kWh and natural gas saving for air heating is 70-72 ncu.m. EFFECT: higher quality of the product, reduced losses of ammonia and power consumption.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4106600/26A SU1450266A1 (en) | 1986-08-19 | 1986-08-19 | Method for production of diammonium phosphate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4106600/26A SU1450266A1 (en) | 1986-08-19 | 1986-08-19 | Method for production of diammonium phosphate |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1450266A1 true SU1450266A1 (en) | 1996-05-10 |
Family
ID=60534360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4106600/26A SU1450266A1 (en) | 1986-08-19 | 1986-08-19 | Method for production of diammonium phosphate |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1450266A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008115121A1 (en) * | 2007-03-19 | 2008-09-25 | Easymining Sweden Ab | Phosphorus recovery |
-
1986
- 1986-08-19 SU SU4106600/26A patent/SU1450266A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008115121A1 (en) * | 2007-03-19 | 2008-09-25 | Easymining Sweden Ab | Phosphorus recovery |
AU2008227219B2 (en) * | 2007-03-19 | 2012-08-16 | Easymining Sweden Ab | Phosphorus recovery |
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