EA201200730A1 - METHOD FOR PRODUCING PHOSPHOROUS FERTILIZER - Google Patents
METHOD FOR PRODUCING PHOSPHOROUS FERTILIZERInfo
- Publication number
- EA201200730A1 EA201200730A1 EA201200730A EA201200730A EA201200730A1 EA 201200730 A1 EA201200730 A1 EA 201200730A1 EA 201200730 A EA201200730 A EA 201200730A EA 201200730 A EA201200730 A EA 201200730A EA 201200730 A1 EA201200730 A1 EA 201200730A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- ratio
- mixer
- calcium
- raw materials
- mixture
- Prior art date
Links
Landscapes
- Fertilizers (AREA)
Abstract
Изобретение относится к производству фосфорных удобрений, широко используемых в сельском хозяйстве. Способ получения фосфорного удобрения включает смешение нагретой до 75-85°С фосфорной кислоты концентрации 48-50% POс кальцийсодержащим сырьем и ретуром в смесителе, грануляцию и дозревание смеси, сушку до остаточной влажности 1-3% и классификацию продукта, причем в качестве кальцийсодержащего сырья берут дефекат с влажностью 4-15%, в смеситель вводят абсорбционные растворы с поддержанием соотношения расхода абсорбционного раствора к дефекату в пределах 0,15-0,30, а смешение проводят до массового соотношения СаО/РОв смеси в пределах (0,45-0,88):1. Способ позволяет получать фосфорное удобрение пролонгированного действия, а также регулировать содержание лимоннорастворимого и водорастворимого фосфатов и их соотношение в продукте при минимальном присутствии свободной кислотности (менее 1,0%).The invention relates to the production of phosphate fertilizers, widely used in agriculture. A method of obtaining phosphate fertilizer includes mixing of phosphoric acid heated to 75-85 ° C with a concentration of 48-50% PO with calcium-containing raw materials and a retur in a mixer, granulation and ripening of the mixture, drying to a residual moisture content of 1-3% and product classification, and as calcium-containing raw materials take defecate with a moisture content of 4-15%, absorption solutions are introduced into the mixer with maintaining the ratio of consumption of the absorption solution to the defecation in the range of 0.15-0.30, and mixing is carried out until the mass ratio of CaO / POv of the mixture is within (0.45-0 , 88): 1. The method allows to obtain phosphoric fertilizer of prolonged action, as well as to regulate the content of citrate-soluble and water-soluble phosphates and their ratio in the product with the minimum presence of free acidity (less than 1.0%).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA201200730A EA020435B1 (en) | 2012-06-09 | 2012-06-09 | Method for producing phosphoric fertilizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA201200730A EA020435B1 (en) | 2012-06-09 | 2012-06-09 | Method for producing phosphoric fertilizer |
Publications (2)
Publication Number | Publication Date |
---|---|
EA201200730A1 true EA201200730A1 (en) | 2013-12-30 |
EA020435B1 EA020435B1 (en) | 2014-11-28 |
Family
ID=49955753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EA201200730A EA020435B1 (en) | 2012-06-09 | 2012-06-09 | Method for producing phosphoric fertilizer |
Country Status (1)
Country | Link |
---|---|
EA (1) | EA020435B1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU597663A1 (en) * | 1975-06-03 | 1978-03-15 | Славянское Производственное Объединение "Химпром" | Method of obtaining dicalcium phosphate |
SU1463733A1 (en) * | 1985-11-22 | 1989-03-07 | Ленинградский Технологический Институт Им.Ленсовета | Method of producing fodder calcium phosphates |
RU2115638C1 (en) * | 1997-03-24 | 1998-07-20 | Тараторкин Владимир Васильевич | Method of processing animal-origin organic waste into protein and biohumus |
JP4141678B2 (en) * | 2000-12-05 | 2008-08-27 | チッソ旭肥料株式会社 | Fertilizer, method for producing fertilizer, and method for controlling mineralization rate of urea-aliphatic aldehyde condensate |
-
2012
- 2012-06-09 EA EA201200730A patent/EA020435B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EA020435B1 (en) | 2014-11-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): AM AZ BY KZ KG TJ TM |
|
MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): RU |