SU85036A1 - Method for preparing water soluble calcium silicophosphate - Google Patents
Method for preparing water soluble calcium silicophosphateInfo
- Publication number
- SU85036A1 SU85036A1 SU390566A SU390566A SU85036A1 SU 85036 A1 SU85036 A1 SU 85036A1 SU 390566 A SU390566 A SU 390566A SU 390566 A SU390566 A SU 390566A SU 85036 A1 SU85036 A1 SU 85036A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- soluble calcium
- water soluble
- preparing water
- calcium silicophosphate
- mixture
- Prior art date
Links
Landscapes
- Fertilizers (AREA)
Description
Известен способ получени высококонценгрированного удобрени - силнкофосфата кальци с содержание до 65% Р2О5-взаимодействием смеси природного фосфата и кремнезема с фосфорной кислотой или газообразным фосфорным ангидридом. Применение фосфорной кислоты слабой концентрации (до 30% PjOs) дает возможность получать удобрение, содержащее Р2Оз в воднорастворимой форме. Процесс юлучеии силико(росфата кальци ведут при 1200-1250°.A known method for producing highly concentrated fertilizer — calcium calcium phosphate — contains up to 65% P2O5 by reacting a mixture of natural phosphate and silica with phosphoric acid or gaseous phosphoric anhydride. The use of phosphoric acid of low concentration (up to 30% PjOs) makes it possible to obtain fertilizer containing P2O3 in water-soluble form. The process of Julice silico (calcium flint is carried out at 1200-1250 °.
При работе с фосфорным ангидридом или парами гор щего белого фосфора последние взаимодействуют в шахтной печи со смесью из природного малокремнистого фосфорита с 8-10% кремнезема.When working with phosphoric anhydride or vapors of burning white phosphorus, the latter interact in a shaft furnace with a mixture of natural low-silicon phosphate with 8-10% silica.
Во избежание сни/кени воднорастворимой формы PaOs в силикофосфате кальци из-за отрицательного вли ни материала футеровки иечи предлагаетс реакционную печь выкладывать внутри сиециальиым огнеупорным плавленным муллитом. Последний индеферентен к агрессивному действию смеси фосфата, кремнезема и фосфорного ангидрида при 1200.In order to avoid the water soluble form of PaOs in calcium silicophosphate, due to the negative effect of the lining material, it is proposed to lay the reaction furnace inside with this refractory fused mullite. The latter is indifferent to the aggressive action of a mixture of phosphate, silica and phosphoric anhydride at 1200.
Предмет изобретени Subject invention
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU390566A SU85036A1 (en) | 1949-01-21 | 1949-01-21 | Method for preparing water soluble calcium silicophosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU390566A SU85036A1 (en) | 1949-01-21 | 1949-01-21 | Method for preparing water soluble calcium silicophosphate |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU403726 Division |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU85036A1 true SU85036A1 (en) | 1949-11-30 |
Family
ID=48257544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU390566A SU85036A1 (en) | 1949-01-21 | 1949-01-21 | Method for preparing water soluble calcium silicophosphate |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU85036A1 (en) |
-
1949
- 1949-01-21 SU SU390566A patent/SU85036A1/en active
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