CN102826882A - Carbamide chelated controlled release fertilizer and its preparation method - Google Patents
Carbamide chelated controlled release fertilizer and its preparation method Download PDFInfo
- Publication number
- CN102826882A CN102826882A CN2011101736771A CN201110173677A CN102826882A CN 102826882 A CN102826882 A CN 102826882A CN 2011101736771 A CN2011101736771 A CN 2011101736771A CN 201110173677 A CN201110173677 A CN 201110173677A CN 102826882 A CN102826882 A CN 102826882A
- Authority
- CN
- China
- Prior art keywords
- urea
- fertilizer
- amino acid
- preparation
- borax
- 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
Images
Abstract
The invention discloses a carbamide chelated controlled release fertilizer and its preparation method. The fertilizer is prepared from a composite amino acid, urea formaldehyde, urea, monoammonium phosphate, potassium chloride, zinc sulfate, borax, sulfur and the like, and is the N:P2O5:20-12 (4.0% of S, 0.5% of Zn and 0.2% of B) carbamide chelated controlled release fertilizer with the total nutrients of not less than 42% and the amino acid content of 8%. The chelating condition is characterized in that the pH value is in a range from the neutrality to a slightly alkaline value to ensure the chelating effect of trace elements and amino acids. The preparation method comprises the following steps: adding the zinc sulfate and the borax into the composite amino acid according to certain proportions to chelate the composite amino acid with B and Zn, adding the urea, the monoammonium phosphate, the potassium chloride, the sulfur and the like, crushing, spaying a urea formaldehyde solution, mixing and granulating in a rotary drum granulator, drying through a rotating cylinder drying machine, screening, and packaging to produce finished products. The products are an organic composite fertilizer based on amino acids, are rich in nutritional elements comprising N, P, K, S, B, Zn and the like required by crops, can alleviate the interionic antagonistic action, and are novel fertilizer products having the advantages of high efficiency, environmental protection and long action and capable of improving the fertilizer utilization rate.
Description
Technical field: fertilizer manufacturing technology of the present invention field relates to a kind of urea chelated controlled-release fertilizer.
Background technology: over nearly 10 years, people study the inner complex technology, select suitable sequestrant, with trace element chelated, improve utilization rate of fertilizer to greatest extent.Amino acid is as sequestrant, and stability constant is moderate, not disturbed by soil pH and other ionic, can directly be absorbed by crop.By the difference of used sequestrant, in fertilizer industry, the U.S. uses maximum be EDTA (YD 30), Hydrocerol As.EDTA all has stronger sequestering power to all transition element, but price is high, and use is restricted; China was once once advocating and is using humic acid as sequestrant, cost is decreased, but humic acid concentration was low, and molecular weight is big, and sequestering power is poor.Recent years, adopt amino acid as sequestrant, the inner complex specific absorption of production improves greatly, than other chelating agent farm crop is had more significantly effect of increasing production.
But what fertilizer market produced at present all is trace element (copper, iron, zinc, manganese, chromium etc.) amino-acid chelate, only is the production of the little fertilizer of amino acid, also needs to execute in addition the fertilizer that contains macroelement during crop fertilization again.Zinc and phosphorus are mixed with antagonistic action besides, make zinc and amino-acid chelate, avoid the generation of this phenomenon.Therefore, these goods are a kind of novel urea chelated controlled-release fertilizer of producing.Meet the requirement of national development " energy-saving and emission-reduction ", " low-carbon economy " and " resource-conserving and environmentally friendly agricultural ".
Summary of the invention: these goods are to adopt urea formaldehyde technology to add the urea chelated controlled-release fertilizer of elements such as compound organic sequestering agent production is nitrogenous, phosphorus, potassium, boron, zinc, sulphur.It is processed by following raw material: aminoacids complex, urea formaldehyde, urea, monoammonium phosphate, Repone K, zinc sulfate, borax, sulphur etc. are formed.Be made into N: P
2O
5: K
2O is 20-10-12 (S 4.0%, Zn 0.5%, B 0.2%), total nutrient>=42%, and the urea huge legendary turtle of aminoacids content>=8% is closed controlled release fertilizer.Add monoammonium phosphate 227kg, Repone K 218kg, zinc sulfate 22kg, borax 18kg, sulphur 38kg, aminoacids complex 100kg, urea formaldehyde 50kg, urea 327kg in the urea chelated controlled-release fertilizer per ton.
The chelating condition is located at pH in the scope of neutral slightly meta-alkalescence, guarantees trace element and amino acid whose chelating effect.During composite aminoacid chelating microelement, zinc also is to exist with the chelating attitude, alleviates interionic antagonistic action, is prone to by the plant absorbing utilization.Wherein water-soluble phosphorus accounts for that the massfraction of available phosphorus is 82/%, massfraction≤2.0% of moisture; The fertile AT value of urea chelated controlled-release is at 50%-70%; The insoluble nitrogen of cold water (CWIN)/total nitrogen (TN) is greater than 60%; Can satisfy the nutrient demand of short-term cash crop and long-term field crop at 2-6 month the time of releasing of nutrient.Meet State Standard of the People's Republic of China GB15063-2009 composite fertilizer (compound manure).
This product is to be main compoiste fertilizer with amino acid, not only is rich in nutritive elements such as the necessary nitrogen of farm crop, phosphorus, potassium, sulphur, boron, zinc, and its nutrient discharges the double effects with slowly-releasing and controlled release.And be a kind of efficient, the environmental protection of utilization rate of fertilizer, long lasting new-type fertilizer product of improving.
Description of drawings: Fig. 1 is the technical process that the urea chelated controlled-release is fertile and prepare.
Embodiment: accompanying drawing has provided the specific embodiment of this novel urea chelated controlled-release fertiliser prodn; Below in conjunction with accompanying drawing this novel urea chelated controlled-release fertiliser prodn is elaborated: zinc sulfate, borax are joined in the aminoacids complex by a certain percentage, pH is transferred to about 7, carry out stirring reaction; Make its aminoacids complex and boron, zinc chelating; Add urea, monoammonium phosphate, Repone K, sulphur, pulverize then, stir.Add aminoacids complex urea formaldehyde (in the urea formaldehyde molecule amino is arranged,, condensation reaction takes place under heating) again with the carboxyl generation neutralization reaction in the aminoacids complex; Material is at the rotary drum granulator mixing granulation; Carry out drying through whizzer, again through screening, packing is just produced finished product.
This product granularity (3.35mm-5.60mm) is 92%, and particle is smooth, and anti-crushing power is strong, does not lump, and physical behavior is good, is convenient to use.
Claims (2)
1. a urea chelated controlled-release is fertile, and it is processed by raw materials such as aminoacids complex, urea formaldehyde, urea, monoammonium phosphate, Repone K, zinc sulfate, borax, sulphur, is made into N: P
2O
5: K
2O is 20-10-12 (S 4.0%, Zn 0.5%, B 0.2%), total nutrient>=42%, and the urea huge legendary turtle of compounded amino acid content 8% is closed controlled release fertilizer.
2. its preparation method: join zinc sulfate, borax in the aminoacids complex by a certain percentage; Make its aminoacids complex and boron, zinc chelating; Add urea, monoammonium phosphate, Repone K, sulphur again, pulverize then, stir, add the whitewashing of urea formaldehyde liquid again; Material is at the rotary drum granulator mixing granulation, carry out drying through whizzer, and screening, packing are just produced finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101736771A CN102826882A (en) | 2011-06-15 | 2011-06-15 | Carbamide chelated controlled release fertilizer and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101736771A CN102826882A (en) | 2011-06-15 | 2011-06-15 | Carbamide chelated controlled release fertilizer and its preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102826882A true CN102826882A (en) | 2012-12-19 |
Family
ID=47330225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101736771A Pending CN102826882A (en) | 2011-06-15 | 2011-06-15 | Carbamide chelated controlled release fertilizer and its preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102826882A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319286A (en) * | 2013-07-10 | 2013-09-25 | 山东宝通肥业有限公司 | Urea formaldehyde compound fertilizer containing chelating medium/trace element and preparation method thereof |
| CN104045467A (en) * | 2014-07-05 | 2014-09-17 | 山东史贝美肥料股份有限公司 | Ecological environment-friendly urea chelated compound fertilizer and preparation method thereof |
| CN104045468A (en) * | 2014-07-05 | 2014-09-17 | 山东史贝美肥料股份有限公司 | Special functional urea formaldehyde fertilizer for garlic and preparation method thereof |
| CN104058901A (en) * | 2014-07-05 | 2014-09-24 | 山东史贝美肥料股份有限公司 | Special controlled-release amino acid fertilizer for pine at seedling stage and preparation method of fertilizer |
| CN104211471A (en) * | 2014-08-28 | 2014-12-17 | 安徽兴隆肥业科技有限责任公司 | Ternary compound fertilizer |
| CN104945075A (en) * | 2014-03-27 | 2015-09-30 | 四川年年丰生物技术有限公司 | Insecticide slow-release medicinal fertilizer and preparation method thereof |
| CN105198645A (en) * | 2015-10-29 | 2015-12-30 | 史丹利化肥当阳有限公司 | Special slow-release fertilizer for oranges and production process of special slow-release fertilizer |
| CN105601423A (en) * | 2015-12-24 | 2016-05-25 | 贵州省化工研究院 | Long-acting slow-release organic-inorganic compound N fertilizer and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1468831A (en) * | 2002-07-18 | 2004-01-21 | 邵建华 | Application of amino acid-trace element chelate in composite fertilizer |
| CN1880286A (en) * | 2005-06-14 | 2006-12-20 | 上海化工研究院 | Complex fertilizer production method without drying process |
| CN101759495A (en) * | 2009-11-20 | 2010-06-30 | 山东金正大生态工程股份有限公司 | Potassium sulfate slow-release compound and mixed fertilizer and preparation method thereof |
| CN101913965A (en) * | 2010-07-23 | 2010-12-15 | 山东谷丰源化肥有限公司 | Urea formaldehyde sustained-release fertilizer and preparation method thereof |
| CN101921157A (en) * | 2010-08-25 | 2010-12-22 | 河南心连心化肥有限公司 | Production method of slow-release urea |
-
2011
- 2011-06-15 CN CN2011101736771A patent/CN102826882A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1468831A (en) * | 2002-07-18 | 2004-01-21 | 邵建华 | Application of amino acid-trace element chelate in composite fertilizer |
| CN1880286A (en) * | 2005-06-14 | 2006-12-20 | 上海化工研究院 | Complex fertilizer production method without drying process |
| CN101759495A (en) * | 2009-11-20 | 2010-06-30 | 山东金正大生态工程股份有限公司 | Potassium sulfate slow-release compound and mixed fertilizer and preparation method thereof |
| CN101913965A (en) * | 2010-07-23 | 2010-12-15 | 山东谷丰源化肥有限公司 | Urea formaldehyde sustained-release fertilizer and preparation method thereof |
| CN101921157A (en) * | 2010-08-25 | 2010-12-22 | 河南心连心化肥有限公司 | Production method of slow-release urea |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319286A (en) * | 2013-07-10 | 2013-09-25 | 山东宝通肥业有限公司 | Urea formaldehyde compound fertilizer containing chelating medium/trace element and preparation method thereof |
| CN103319286B (en) * | 2013-07-10 | 2015-03-04 | 山东宝源生物有限公司 | Urea formaldehyde compound fertilizer containing chelating medium/trace element and preparation method thereof |
| CN104945075A (en) * | 2014-03-27 | 2015-09-30 | 四川年年丰生物技术有限公司 | Insecticide slow-release medicinal fertilizer and preparation method thereof |
| CN104045467A (en) * | 2014-07-05 | 2014-09-17 | 山东史贝美肥料股份有限公司 | Ecological environment-friendly urea chelated compound fertilizer and preparation method thereof |
| CN104045468A (en) * | 2014-07-05 | 2014-09-17 | 山东史贝美肥料股份有限公司 | Special functional urea formaldehyde fertilizer for garlic and preparation method thereof |
| CN104058901A (en) * | 2014-07-05 | 2014-09-24 | 山东史贝美肥料股份有限公司 | Special controlled-release amino acid fertilizer for pine at seedling stage and preparation method of fertilizer |
| CN104058901B (en) * | 2014-07-05 | 2016-06-08 | 山东史贝美肥料股份有限公司 | A kind of pine tree seedling stage is slow releases the special fertilizer of amino acid and its preparation method |
| CN104211471A (en) * | 2014-08-28 | 2014-12-17 | 安徽兴隆肥业科技有限责任公司 | Ternary compound fertilizer |
| CN105198645A (en) * | 2015-10-29 | 2015-12-30 | 史丹利化肥当阳有限公司 | Special slow-release fertilizer for oranges and production process of special slow-release fertilizer |
| CN105601423A (en) * | 2015-12-24 | 2016-05-25 | 贵州省化工研究院 | Long-acting slow-release organic-inorganic compound N fertilizer and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102826882A (en) | Carbamide chelated controlled release fertilizer and its preparation method | |
| CN103588576B (en) | Multifunctional fertilizer | |
| CN103708964B (en) | Instant chelated solid water-soluble fertilizer | |
| CN102260111B (en) | Method for preparing humic acid-urea complex in aqueous medium | |
| CN101935243B (en) | High-water-solubility organic fertilizer | |
| CN101362662A (en) | Coating sustained-released disposable fertilizer | |
| CN102603431A (en) | Film coating synergistic nitrogen fertilizer and preparation method thereof | |
| CN103664369B (en) | A kind of synergy loss controlling fertilizer and preparation method thereof | |
| CN106699338A (en) | Special slow-release bulk blending fertilizer for wheat and preparation method of fertilizer | |
| CN102120711A (en) | Dual enzymes and double-enzyme serial fertilizer as well as application thereof in agriculture | |
| CN103936524A (en) | Method for producing urea formaldehyde controlled-release compound fertilizer | |
| CN102815991B (en) | Fertilizer special for peanuts | |
| CN102173939A (en) | Production process of lignin ammonium sulphonate as plant root growth regulator | |
| CN104803747A (en) | Carbon-based slow-release fertilizer with high microelement content and preparation method thereof | |
| CN105036983A (en) | Production method of multielement efficient humic acid compound fertilizer | |
| CN101880204A (en) | Method for producing granular compound fertilizer | |
| WO2017206743A1 (en) | Method for rapid manufacturing of novel micronutrient-containing urea | |
| CN105110892B (en) | A kind of a great number of elements Water soluble fertilizer and preparation method thereof | |
| CN104496642A (en) | Lignin controlled-release fertilizer | |
| CN104446853A (en) | Coating organic efficient granule fertilizer | |
| CN102260124B (en) | Method for preparing humic acid coated urea | |
| CN102344314B (en) | Weathered coal-containing potassium sulfate composite fertilizer treated by acidulation and manufacturing method thereof | |
| CN105646106A (en) | Humic acid type functionality organic-inorganic compound fertilizer and preparing method thereof | |
| CN105016854A (en) | Fruit special fertilizer synergist, and preparation method thereof | |
| CN104529564A (en) | Quick-acting granular magnesium sulfate fertilizer and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121219 |