SU479745A1 - The method of obtaining water-soluble phosphate fertilizer - Google Patents
The method of obtaining water-soluble phosphate fertilizerInfo
- Publication number
- SU479745A1 SU479745A1 SU1893833A SU1893833A SU479745A1 SU 479745 A1 SU479745 A1 SU 479745A1 SU 1893833 A SU1893833 A SU 1893833A SU 1893833 A SU1893833 A SU 1893833A SU 479745 A1 SU479745 A1 SU 479745A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- water
- phosphate fertilizer
- soluble
- soluble phosphate
- obtaining water
- Prior art date
Links
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- Fertilizers (AREA)
Description
1one
Изобретение относитс к способу получени водорастворимого фосфорного удобрени путем переработки природных фосфатов.This invention relates to a method for producing a water-soluble phosphate fertilizer by processing natural phosphates.
Известен способ получени водорастворимого фосфорного удобрени путем нагревани конденсированного фосфата кальци в атмосфере насыщенных вод ных паров и взвешенной формы фосфорной кислоты.A known method for producing a water-soluble phosphate fertilizer is by heating the condensed calcium phosphate in an atmosphere of saturated water vapor and a suspended form of phosphoric acid.
К недостаткам известного способа относ тс получение удобрени с низким содержанием водорастворимой формы Р2О5 и больша длительность процесса (23 час).The disadvantages of this method include the production of fertilizer with a low content of water-soluble form of P2O5 and a long process time (23 hours).
С целью интенсификации процесса и получени водорастворимого продукта предлагаетс вести процесс при 180-200С и поддерживать концентрацию фосфорной кислоты 70- 100% по содержанию PsOs.In order to intensify the process and obtain a water-soluble product, it is proposed to conduct the process at 180-200 ° C and to maintain a phosphoric acid concentration of 70-100% in the content of PsOs.
Количество водо- и цитратнорастворимой формы в удобрении можно регулировать введением в зону реакции различных количеств фосфорной кислоты.The amount of water and citrate soluble form in the fertilizer can be regulated by introducing various amounts of phosphoric acid into the reaction zone.
Пример 1. Размолотый стекловидный полифосфат кальци , содержащий 71,7% РаОз, выдерживают 1 час при 190°С в печи в атмосфере насыщенных вод ных паров. Одновременно с полифосфатом в печь форсункой ввод т фосфорсодержащую кислоту, содержащую 70% Р205, в количестве, необходимом дл достижении заданного соотнощени между СаО и Р2О5 (оно равно 0,7). Полученный продукт содержит 67,5% общейExample 1. Ground glassy calcium polyphosphate containing 71.7% of RaOz is kept for 1 hour at 190 ° C in an oven in an atmosphere of saturated water vapor. Simultaneously with the polyphosphate, phosphorus-containing acid containing 70% P205 is introduced into the furnace by the nozzle in an amount necessary to achieve the desired ratio between CaO and P2O5 (it is 0.7). The resulting product contains 67.5% of the total
Р205 и 67,5% водорастворимой Р2О5. К Р2О5водораств./Р2О5общ..Р205 and 67.5% water soluble Р2О5. K P2O5 waterworks. / P2O5 tot ..
пример 2. в тех же услови х обрабатывают размолотый конденсированный фосфат, содержащий 64% Р2О5. Получают продукт, содержащий 62,6% общей Р205 и 62,6% водорастворимой PzOb- .Example 2. Under the same conditions, milled condensed phosphate containing 64% P2O5 is treated. A product is obtained containing 62.6% of the total P205 and 62.6% of water-soluble PzOb-.
Предмет изобретени Subject invention
Способ получени водорастворимого фосфорного удобрени путем нагревани конденсированного фосфата кальци в атмосфере насыщенных вод ных паров и фосфорной кислоты , отличающийс тем, что, с целью интенсификации процесса и получени водорастворимого продукта, процесс ведут при 180-200°С и концентрацию фосфорной кислоты по содержанию Р2О5 поддерживают равной 70-100%.A method for producing a water-soluble phosphate fertilizer by heating condensed calcium phosphate in an atmosphere of saturated water vapor and phosphoric acid, characterized in that, in order to intensify the process and to obtain a water-soluble product, the process is carried out at 180-200 ° C and the concentration of phosphoric acid in P2O5 content equal to 70-100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1893833A SU479745A1 (en) | 1973-03-12 | 1973-03-12 | The method of obtaining water-soluble phosphate fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1893833A SU479745A1 (en) | 1973-03-12 | 1973-03-12 | The method of obtaining water-soluble phosphate fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU479745A1 true SU479745A1 (en) | 1975-08-05 |
Family
ID=20545550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1893833A SU479745A1 (en) | 1973-03-12 | 1973-03-12 | The method of obtaining water-soluble phosphate fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU479745A1 (en) |
-
1973
- 1973-03-12 SU SU1893833A patent/SU479745A1/en active
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