CN1032777A - A kind of method of making potassium phosphate urea - Google Patents
A kind of method of making potassium phosphate urea Download PDFInfo
- Publication number
- CN1032777A CN1032777A CN 87105102 CN87105102A CN1032777A CN 1032777 A CN1032777 A CN 1032777A CN 87105102 CN87105102 CN 87105102 CN 87105102 A CN87105102 A CN 87105102A CN 1032777 A CN1032777 A CN 1032777A
- Authority
- CN
- China
- Prior art keywords
- urea
- potassium
- mixed
- drying
- fertilizer
- 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.)
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Abstract
A kind of method of making the potassium phosphate urea three elements complex fertilizer is that potassium primary phosphate, urea, water are mixed according to a certain percentage.Granulation under rolling, drying make the molten skin that is wrapped in urea of potassium primary phosphate, thereby obtain the compound manure of different nitrogen, phosphorus, potassium ratio.Its technology is simple, and cost is low, is convenient to large-scale continuous production.Therefore, this high concentrations of phosphoric acid potassium urea fertilizer will large-scale popularization and be used widely.
Description
The invention belongs to the chemical industry class, make the production method of granular nitrogen, phosphorus, potassium three elements complex fertilizer.
Apply for a patent CN85101008, on April 1 85 year applying date, 3 38 phases of volume of patent gazette have been introduced a kind of Wrapped fertilizer and manufacture method thereof.Being to be core with granulous urea or ammonium nitrate or phosphorus ammonium or ammonium chloride, is binding agent with nitrogen phosphorus mud, and precipitated superphosphate or fused(calcium magnesium)phosphate or bone meal are wrapped up said core, forms Wrapped fertilizer.Between core and integument, can add potash fertilizer, little fertilizer, agricultural chemicals, plant-growth regulator, form interlayer.This manufacture method exists processing requirement relatively stricter, operates also more complicated, is not suitable for small business's processing, shortcomings such as cost height.
The objective of the invention is to utilize simple process operation, make the Wrapped fertilizer of a kind of high concentration N, phosphorus, potassium element, it is big also to have range of choice simultaneously, and cost is low, is easy to characteristics such as production.
The object of the present invention is achieved like this: potassium primary phosphate, urea, water are mixed, and granulating and drying under rolling makes the molten skin that is wrapped in urea of potassium primary phosphate, thereby makes the compound manure of nitrogen, phosphorus, potassium different ratios.
The manufacture method of this nitrogen, phosphorus, the compound Wrapped fertilizer of potassium ternary is as follows:
1, be mixed: with agricultural potassium primary phosphate, urea and water, the weight ratio with 1: 0.1～10: 0.02～2.0 was mixed 0.01～5 hour under 10～80 ℃ of temperature, obtained the material of uniformity.
2, granulating and drying: the material that will be mixed, place in the round wheelwork, moltenly wrap up in granulation and carry out drying.30～90 ℃ of the temperature of granulating and drying; The granulating and drying time is 0.1～10 hour.
3, screening and finished product: the particulate matter that drying is good, according to the requirement that agricultural is used, carry out twice screening.Screen overflow is a macrobead for the first time, and screen underflow is a meal for the second time, all returns the operation that is mixed.Screen overflow is a finished product for the second time, and according to the difference of prescription, the proportional range of element is in potassium phosphate urea: N 4.2～42.0%; P
2O
544.1～4.4%; K
2O 29.5～3.0; H
2O is below 1.0%.
Technology of the present invention is simple, and production cost is low, can serialization production, can produce the potassium phosphate urea of different nitrogen phosphoris and potassium fertilizer ratios according to agricultural demand.Potassium phosphate urea is a kind of high-concentration compound fertilizer material, because nitrogen, phosphorus, each component of potassium are made of best base fertilizer, chlorine all is the ammonia attitude, phosphorus all is water-soluble, and potassium is potassiumphosphate, and the chlorion in the fertilizer, content of fluoride ion are very low, the range of choice of potassium phosphate urea Nitrogen, Phosphorus and Potassium is big, therefore it is suitable for various soil, various crop, various breeding time and uses, and also can do base, topdressing is used for root and executes, and can also spray by blade.
Below will the invention will be further described by embodiment:
Embodiment 1:
Get 100.4 kilograms in urea of agricultural (content 99.7%, two urine 0.8% contract), potassium primary phosphate 60.2 kilograms of (content 87.93%, Cl
-0.63%, SO
2- 46.63%, F
-0.015%, H
2O5.55%), water is 6 kilograms.Through being mixed, molten granulation and the drying wrapped up in gets 158.7 kilograms of potassium phosphate ureas, and the urea rate of recovery is 99.5%.Processing condition in the present embodiment are:
(1) is mixed
Weight ratio: KH
2PO
4: (NH
2)
2CO: H
2O=1: 2: 0.12
Be mixed the time: 0.25～1.5 hour
Temperature is mixed: 25～35 ℃
(2) granulating and drying
Granulation mode: cylinder
Drying source: warm air
The granulating and drying time: 1～2 hour
Granulating and drying temperature: 60～80 ℃
Back powder rate: 25～40%
The potassium phosphate urea product quality indicator
The project quality index
1, total effective ingredient 59.19%
Wherein: nitrogen (N) 29.69%
Phosphorus (P
2O
5) 16.61%
Potassium (K
2O) 12.89%
2, vitriol (SO
2- 2) 2.40%
3, muriate (Cl
-) 0.19%
4, fluorochemical (F
-) 0.005%
5, contract two urine 0.55%
6, moisture 0.99%
Embodiment 2:
Get 100.4 kilograms in urea of agricultural (content 99.7%, two urine 0.8% contract), potassium primary phosphate 120.4 kilograms of (content 87.93%, Cl
-0.63%, SO
2- 46.63%, F
-0.015%, H
2O5.55%), H
2The O10 kilogram.Through be mixed, molten wrap up in granulation, drying after, 215.3 kilograms of potassium phosphate ureas, the urea rate of recovery is 99.5%.Processing condition in the present embodiment are:
(1) is mixed
Weight ratio: KH
2PO
4: (NH
2)
2CO: H
2O=1: 1: 0.1
Be mixed the time: 0.5～2 hour
Temperature is mixed: 30～40 ℃
(2) granulating and drying
Granulation mode: cylinder
Drying source: warm air
The granulating and drying time: 1.5～2.5 hours
Granulating and drying temperature: 60～85 ℃
Back powder rate: 25～40%
The potassium phosphate urea product quality indicator
The project quality index
1, total effective ingredient 65.0%
Wherein: nitrogen (N) 21.7%
Phosphorus (P
2O
5) 24.3%
Potassium (K
2O) 19.0%
2, vitriol (SO
2- 4) 3.5%
3, muriate (Cl
-) 0.33%
4, fluorochemical (F
-) 0.008%
5, contract two urine 0.4%
6, moisture 1.0%
Claims (1)
1, a kind of method of making three elements complex fertilizer, it by potassium primary phosphate, urea and water through be mixed, granulation, drying and make, it is characterized in that: the weight ratio that potassium primary phosphate, urea and water are mixed is: 1: 0.1～10: 0.02～2, the temperature that is mixed is 10～80 ℃, the time of being mixed is 0.01～5 hour, 30～90 ℃ of granulating and drying temperature, granulation time: 0.1～10 hour, effective component content N 4.2～42.0%, P
2O
544.1～4.4%, K
2O29.5～3.0%, H
2Below the O1.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87105102 CN1012167B (en) | 1987-10-24 | 1987-10-24 | Prepn. of urea potassium phosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87105102 CN1012167B (en) | 1987-10-24 | 1987-10-24 | Prepn. of urea potassium phosphate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1032777A true CN1032777A (en) | 1989-05-10 |
| CN1012167B CN1012167B (en) | 1991-03-27 |
Family
ID=4815191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87105102 Expired CN1012167B (en) | 1987-10-24 | 1987-10-24 | Prepn. of urea potassium phosphate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1012167B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075045C (en) * | 1993-07-08 | 2001-11-21 | 凯米拉公司 | A process for manufacturing compound fertilizers |
| CN1100739C (en) * | 1999-12-12 | 2003-02-05 | 钟思礼 | Granular potassium ammonium phosphate and its production process |
| CN106278389A (en) * | 2016-08-12 | 2017-01-04 | 吉林万通集团有限公司 | Potassium phosphate is urinated |
-
1987
- 1987-10-24 CN CN 87105102 patent/CN1012167B/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075045C (en) * | 1993-07-08 | 2001-11-21 | 凯米拉公司 | A process for manufacturing compound fertilizers |
| CN1100739C (en) * | 1999-12-12 | 2003-02-05 | 钟思礼 | Granular potassium ammonium phosphate and its production process |
| CN106278389A (en) * | 2016-08-12 | 2017-01-04 | 吉林万通集团有限公司 | Potassium phosphate is urinated |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1012167B (en) | 1991-03-27 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |