CN101973797A - Efficient high-concentration urea-based compound fertilizer containing poly-gamma-glutamic acid - Google Patents
Efficient high-concentration urea-based compound fertilizer containing poly-gamma-glutamic acid Download PDFInfo
- Publication number
- CN101973797A CN101973797A CN 201010254839 CN201010254839A CN101973797A CN 101973797 A CN101973797 A CN 101973797A CN 201010254839 CN201010254839 CN 201010254839 CN 201010254839 A CN201010254839 A CN 201010254839A CN 101973797 A CN101973797 A CN 101973797A
- Authority
- CN
- China
- Prior art keywords
- gamma
- glutamic acid
- poly
- urea
- compound 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.)
- Pending
Links
Abstract
The invention discloses an efficient high-concentration urea-based compound fertilizer containing poly-gamma-glutamic acid. The compound fertilizer is prepared from urea containing 46 percent of N, 20 percent phosphoric acid, potassium chloride containing 60 percent of K2O, gaseous ammonia, poly-gamma-glutamic acid and water holding agent. A process for the compound fertilizer comprises the following steps of: A, phosphoric acid concentration; B, neutralization reaction; C, granulation molding; and D, drying and screening. The process has the advantage that: the process can manufacture the efficient high-concentration urea-based compound fertilizer containing the poly-gamma-glutamic acid, wherein the N: P: K ratio of the compound fertilizer is 19: 19: 19. Meanwhile, the poly-gamma-glutamic acid fertilizer synergist and the fertilizer absorption accelerator for single element or combination of nitrogen, phosphorus and potassium are added in the process; and moreover, the water holding agent for increasing the water holding effect can be added.
Description
Technical field
The present invention relates to the agricultural fertilizer field.
Background technology
Present known N.P.K content is 17-17-17 composite fertilizer, in order to reduce production costs, all is added with filler such as carclazyte, white clay etc. in its production formula, as the prescription of my company's original production is:
The urea 21.6 that contains N amount 46% contains the ammonium chloride 8 of N amount 23.5%
Contain P
2O
558% monoammonium phosphate 38.3 contains K
2The Repone K 28.3 of O 60%
Filler 3.8.
At present, the particle urea-base compound fertilizer General N made of known batching production technique: P: the K ratio is 16: 16: 16 or 17: 17: 17, N: P: the K ratio does not reach 19-19-19, thereby fertilizer efficiency is not high enough.It is owing to be added with filler, and exterior quality is poor, poorly water-soluble.
Summary of the invention
Purpose of the present invention is exactly at known urea-base compound fertilizer and the above-mentioned deficiency of production technique, and a kind of poly-gamma-glutamic acid high-efficiency high-concentration urea-base compound fertilizer that contains is provided, it by the urea that contains N amount 46%, contain 20% phosphoric acid, contain K
2The Repone K of O 60%, gas ammonia, poly-gamma-glutamic acid are made; Its weight part prescription is:
The urea 23.20-24.59 that contains N amount 46% contains 20% phosphatase 11 13.87-120.70
Contain K
2Repone K 31.70 gas ammonias 8.46 of O 60%
Poly-gamma-glutamic acid 0.05-0.5.
It also has water-holding agent, and its formulation by weight is:
Contain K
2The Repone K 31.70 of O 60% contains 20% phosphatase 11 13.87-120.70
The urea 23.20-24.59 gas ammonia 8.46 that contains N amount 46%
Poly-gamma-glutamic acid 0.05-0.5 water-holding agent 2-2.5.
Its production craft step is:
A, Phosphoric Acid Concentration: adopt concentrating unit with 20%P
2O
5Dilute phosphoric acid is concentrated into 50%P
2O
5Strong phosphoric acid through the ageing clarification, obtains 50% strong phosphoric acid;
B, neutralization reaction: strong phosphoric acid and gas ammonia enter tubular reactor and carry out neutralization reaction behind the pre-mixing groove, the slip that forms after the neutralization reaction sprays into the tablets press granulation, and carry out the secondary neutralization reaction with gas ammonia in the bed of material, further improve degree of neutralization to 1.8;
C, granulating and forming: urea is sprayed into the tablets press bonded pelleting together with poly-gamma-glutamic acid after fusion under 120 ℃ of temperature, contain K
2The Repone K of O60% and water-holding agent add from system's returning charge, enter the tablets press granulating;
D, oven dry screening: granulation material drying machine cryodrying screening, qualified particle is packing after the cooling drum cooling.
Advantage of the present invention is: the present invention can produce N: P: the K ratio is a kind of poly-gamma-glutamic acid high-efficiency high-concentration urea-base compound fertilizer that contains of 19-19-19.Simultaneously in complete processing, add the poly-gamma-glutamic acid fertilizer synergist, be used for nitrogen, phosphorus, potassium single-element or its fertilizer absorption accelerator that is used in combination; Poly-gamma-glutamic acid collection slowly-releasing and synergy dual-use function not only have multi-efficiencies such as the fertilizer loss of slowing down, drought-resistant water-preserving, disease-resistant yield-increasing, and have that production cost is low, superior performance, easy to use.Beneficial effect of the present invention is: can be had the value of environmental protection by microbiological deterioration in the soil; Can guarantee under the normal situation of plant-growth, use poly-gamma-glutamic acid 20-100 gram for every mu, can reduce the normal usage quantity 10-30% of fertilizer, more than the volume increase 10-30%, improve the quality of crop simultaneously, improve nitrogen in the crop, phosphorus, potassium content.Can add water-holding agent in addition, to increase the water conservation effect.
Embodiment
A, Phosphoric Acid Concentration: adopt concentrating unit with 113.87-120.70kg20%P
2O
5Dilute phosphoric acid is concentrated into 50%P
2O
5Strong phosphoric acid through the ageing clarification, obtains 50% pure strong phosphoric acid;
B, neutralization reaction: above-mentioned strong phosphoric acid and 8.46kg gas ammonia are entered tubular reactor carry out neutralization reaction behind the pre-mixing groove, the slip that forms after the neutralization reaction sprays into the tablets press granulation, and in the bed of material, carry out the secondary neutralization reaction with gas ammonia, further improve degree of neutralization to 1.8;
C, granulating and forming: 23.20-24.59kg urea after fusion under 120 ℃ of temperature and the 0.05-0.5kg poly-gamma-glutamic acid, is sprayed into the tablets press bonded pelleting respectively, 31.70kg is contained K
2The Repone K of O60% and 2-2.5kg water-holding agent add from system's returning charge, enter the tablets press granulating;
D, oven dry screening: granulation material drying machine cryodrying screening, qualified particle is packing after the cooling drum cooling.
Claims (3)
1. high-efficiency high-concentration urea-base compound fertilizer that contains poly-gamma-glutamic acid, it is characterized in that it by the urea that contains N amount 46%, contain 20% phosphoric acid, contain K
2The Repone K of O 60%, gas ammonia, poly-gamma-glutamic acid are made; Its weight part prescription is:
The urea 23.20-24.59 that contains N amount 46% contains 20% phosphatase 11 13.87-120.70
Contain K
2Repone K 31.70 gas ammonias 8.46 of O 60%
Poly-gamma-glutamic acid 0.05-0.5.
2. the high-efficiency high-concentration urea-base compound fertilizer that contains poly-gamma-glutamic acid according to claim 1 is characterized in that it also has water-holding agent, and its formulation by weight is:
The urea 23.20-24.59 that contains N amount 46% contains 20% phosphatase 11 13.87-120.70
Contain K
2Repone K 31.70 gas ammonias 8.46 of O 60%
Poly-gamma-glutamic acid 0.05-0.5 water-holding agent 2-2.5.
3. the high-efficiency high-concentration urea-base compound fertilizer that contains poly-gamma-glutamic acid according to claim 1 is characterized in that its production craft step is:
A, Phosphoric Acid Concentration: adopt concentrating unit with 20%P
2O
5Dilute phosphoric acid is concentrated into 50%P
2O
5Strong phosphoric acid through the ageing clarification, obtains 50% strong phosphoric acid;
B, neutralization reaction: strong phosphoric acid and gas ammonia enter tubular reactor and carry out neutralization reaction behind the pre-mixing groove, the slip that forms after the neutralization reaction sprays into the tablets press granulation, and carry out the secondary neutralization reaction with gas ammonia in the bed of material, further improve degree of neutralization to 1.8;
C, granulating and forming: urea is sprayed into the tablets press bonded pelleting together with poly-gamma-glutamic acid after fusion under 120 ℃ of temperature, contain K
2The Repone K of O60% and water-holding agent add from system's returning charge, enter the tablets press granulating;
D, oven dry screening: granulation material drying machine cryodrying screening, qualified particle is packing after the cooling drum cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010254839 CN101973797A (en) | 2010-08-17 | 2010-08-17 | Efficient high-concentration urea-based compound fertilizer containing poly-gamma-glutamic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010254839 CN101973797A (en) | 2010-08-17 | 2010-08-17 | Efficient high-concentration urea-based compound fertilizer containing poly-gamma-glutamic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101973797A true CN101973797A (en) | 2011-02-16 |
Family
ID=43573715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010254839 Pending CN101973797A (en) | 2010-08-17 | 2010-08-17 | Efficient high-concentration urea-based compound fertilizer containing poly-gamma-glutamic acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101973797A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102757283A (en) * | 2011-04-29 | 2012-10-31 | 辽宁中科生物工程有限公司 | Synergistic additive for fertilizer and application of synergistic additive |
| CN102875234A (en) * | 2012-10-17 | 2013-01-16 | 中国农业科学院农业资源与农业区划研究所 | Novel synergetic compound fertilizer and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128247A (en) * | 1995-10-12 | 1996-08-07 | 湖南省郴州化肥总厂 | Continuous production method of potassium sulphate type ternary granulated complex fertilizer by using potassium chloride |
| CN101117303A (en) * | 2007-07-09 | 2008-02-06 | 华中农业大学 | Poly-gama-glutamic acid building fertilizer |
| CN101195547A (en) * | 2007-07-09 | 2008-06-11 | 湖北洋丰股份有限公司 | Urea-based compound fertilizer not containing filling material |
-
2010
- 2010-08-17 CN CN 201010254839 patent/CN101973797A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128247A (en) * | 1995-10-12 | 1996-08-07 | 湖南省郴州化肥总厂 | Continuous production method of potassium sulphate type ternary granulated complex fertilizer by using potassium chloride |
| CN101117303A (en) * | 2007-07-09 | 2008-02-06 | 华中农业大学 | Poly-gama-glutamic acid building fertilizer |
| CN101195547A (en) * | 2007-07-09 | 2008-06-11 | 湖北洋丰股份有限公司 | Urea-based compound fertilizer not containing filling material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102757283A (en) * | 2011-04-29 | 2012-10-31 | 辽宁中科生物工程有限公司 | Synergistic additive for fertilizer and application of synergistic additive |
| CN102875234A (en) * | 2012-10-17 | 2013-01-16 | 中国农业科学院农业资源与农业区划研究所 | Novel synergetic compound fertilizer and preparation method thereof |
| CN102875234B (en) * | 2012-10-17 | 2015-03-25 | 中国农业科学院农业资源与农业区划研究所 | Novel synergetic compound fertilizer and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103073356B (en) | Production method of slow-release chelated compound fertilizer containing multiple elements | |
| CN101195547A (en) | Urea-based compound fertilizer not containing filling material | |
| CN103351211A (en) | Machine-applied controlled-release fertilizer special for winter wheat and preparation method thereof | |
| CN104163674A (en) | Fruit tree dedicated slow-release fertilizer and preparation method thereof | |
| CN101708832A (en) | Method for producing defluorinated ammonium phosphate | |
| CN103896686A (en) | Stability urea and preparation method thereof | |
| CN102898221B (en) | Preparation method of nitrogen-phosphorus-potassium compound fertilizer | |
| CN102898246A (en) | Glutamic acid synergia compound fertilizer and preparation method thereof | |
| CN104045454A (en) | Zeolite slow release compound fertilizer and preparation method thereof | |
| CN101973804B (en) | Efficient high-concentration sulfur-based compound fertilizer containing poly-gamma-glutamic acid | |
| CN101643376A (en) | Water-conservation seepage-resistance compound fertilizer | |
| CN101973797A (en) | Efficient high-concentration urea-based compound fertilizer containing poly-gamma-glutamic acid | |
| CN101081773A (en) | Potato composite fertilizer | |
| CN103274855A (en) | Glutamic acid synergistic high-tower compound fertilizer and production method thereof | |
| CN102807415B (en) | A kind of slow-release compound fertilizer manufacture method | |
| CN102531744A (en) | Filler-free blended fertilizer | |
| CN102206107A (en) | Production method for tobacco-specific fertilizer | |
| CN102584392A (en) | Manihot esculenta Crantz compound fertilizer and preparation method thereof | |
| CN103130565A (en) | Compound fertilizer containing attapulgite | |
| CN103073366B (en) | Long-term sustained-release compound fertilizer with long-term ammonium chloride produced with combined-soda process as nitrogen source, and preparation method thereof | |
| CN1923763A (en) | Preparation method of improving nitrogen content in particle sulfonyl NPK composite fertilizer | |
| CN103708980A (en) | Organic chelating drug fertilizer and preparation method thereof | |
| CN103242097B (en) | A kind of foliage fertilizer containing 2,4-DNP sodium | |
| CN203284345U (en) | High tower pelleting nitro compound fertilizer sprayed with soil water-retaining agent | |
| CN102491858A (en) | Method for manufacturing urea-based nitrate slow-releasing compound fertilizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110216 |