CN103880549B - A kind of method of hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer - Google Patents
A kind of method of hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer Download PDFInfo
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- CN103880549B CN103880549B CN201410120780.3A CN201410120780A CN103880549B CN 103880549 B CN103880549 B CN 103880549B CN 201410120780 A CN201410120780 A CN 201410120780A CN 103880549 B CN103880549 B CN 103880549B
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- chemical fertilizer
- hollow ceramic
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- ceramic microspheres
- slow release
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 66
- 239000000919 ceramic Substances 0.000 title claims abstract description 59
- 239000000126 substance Substances 0.000 title claims abstract description 56
- 239000004005 microsphere Substances 0.000 title claims abstract description 41
- 239000004202 carbamide Substances 0.000 title claims abstract description 30
- -1 urea aldehyde Chemical class 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 17
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 38
- 235000013877 carbamide Nutrition 0.000 claims abstract description 29
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000011324 bead Substances 0.000 claims abstract description 18
- 239000010881 fly ash Substances 0.000 claims abstract description 7
- 238000007259 addition reaction Methods 0.000 claims abstract description 6
- 238000006482 condensation reaction Methods 0.000 claims abstract description 6
- 238000013268 sustained release Methods 0.000 claims abstract description 5
- 239000012730 sustained-release form Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000000618 nitrogen fertilizer Substances 0.000 claims description 15
- 239000012047 saturated solution Substances 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 229920001807 Urea-formaldehyde Polymers 0.000 abstract description 4
- DSKJXGYAJJHDOE-UHFFFAOYSA-N methylideneurea Chemical compound NC(=O)N=C DSKJXGYAJJHDOE-UHFFFAOYSA-N 0.000 abstract description 3
- 229920006395 saturated elastomer Polymers 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 6
- 238000012851 eutrophication Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- Fertilizers (AREA)
Abstract
The invention belongs to the chemical fertilizer field of low cost height sustained release performance, particularly to a kind of method of hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer. The inventive method uses a certain proportion of gangue hollow ceramic fine bead or fly ash hollow ceramic fine bead, chemical fertilizer and formaldehyde to be raw material, by the carbamide of hollow ceramic microspheres appendix is carried out addition and condensation reaction, prepares hollow ceramic microspheres appendix Methylene urea fertilizer. Main process be by saturated dissolving after chemical fertilizer utilize hollow ceramic microspheres absorption realize appendix, then the chemical fertilizer of its appendix is carried out synthetic reaction, thus obtaining final products. The method cost is low, and the efficiency slow release phase of gained hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer extends.
Description
Technical field
The invention belongs to the chemical fertilizer field of low cost height sustained release performance, particularly to a kind of method of hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer.
Background technology
Investigation shows, current China cultivated area accounts for the 7% of the whole world, and fertilizer application amount but accounts for the 35% of the whole world. Excessive the using of chemical fertilizer brings the loss in farmland sysrem also can cause body eutrophication, atmospheric warming effect (N2O、CH4、CO2). It is this that to use the pollution of area source that chemical fertilizer produces quite serious in many areas, as the body eutrophication problem such as TAI HU AREA, Pearl River system has caused the great attention of country and local government, and the N of farmland discharge2O、CH4Greenhouse gases also cause the strong interest of world opinion, and if do not taken effective measures, consequence is by even more serious.
Additionally, the utilization rate of chemical fertilizer is too low, excess can be caused to apply fertilizer, make the physical property of soil constantly worsen, so will affect the yield of crops and the raising of quality. Meanwhile, excess fertilising also results in a large amount of wastes of fertilizer.
The research of slow release chemical fertilizer has had the history of decades, and urea aldehyde slow release chemical fertilizer is one of which. It seems that from document, also longer about Methylene urea fertilizer research history, but its sustained release performance reaches certain ultimate value, is still difficult to meet requirement for some crops requiring slow-release period longer.
Summary of the invention
Gangue hollow ceramic fine bead that the present invention develops with Tsing-Hua University and Yong Long Bamda, Hebei new material company limited or fly ash hollow ceramic fine bead (Chinese invention patent: 200910131051.7) are for appendix material, and by absorption, the carbamide of high dissolution is carried out appendix, and (specific surface area of tiny balloon is more than 3.25m2/ g, has good absorption property), then appendix chemical fertilizer in hollow ceramic microspheres is carried out addition and condensation. Owing to the regulation and control input of hollow ceramic microspheres and the slow release effect of output effect and urea aldehyde itself are superimposed, thus obtaining slow-release period longer hollow ceramic microspheres appendix Methylene urea fertilizer, this method technique simply, is produced on a large scale.
It is an object of the invention to provide a kind of slow-release period longer, low cost, can the gangue hollow ceramic fine bead of industrially scalable or fly ash hollow ceramic fine bead appendix urea aldehyde slow release chemical fertilizer production technology. The hollow ceramic microspheres (Fig. 1, Fig. 2) using trade waste gangue or flyash and prepare is raw material, utilize its good absorption property by carbamide concentrated solution by adsorbing and appendix, then the carbamide of its appendix is carried out addition and condensation reaction, thus forming slow-release period longer chemical fertilizer.
A kind of method of hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer, it specifically comprises the following steps that
(1) hollow ceramic microspheres, chemical fertilizer and formaldehyde are weighed in proportion get the raw materials ready
(2) chemical fertilizer is dissolved in the water, is configured to saturated solution;
(3) hollow ceramic microspheres is added in step (2) gained saturated solution, described saturated solution is all adsorbed, thus carrying out chemical fertilizer appendix;
(4) hollow ceramic microspheres of chemical fertilizer adds formaldehyde at the appendix processed through step (3) so that the chemical fertilizer of hollow ceramic microspheres institute appendix carries out addition and condensation reaction, it is thus achieved that have the hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer of dual-sustained-release effect.
Described hollow ceramic microspheres is gangue hollow ceramic fine bead or fly ash hollow ceramic fine bead.
Described chemical fertilizer be nitrogenous fertilizer, instant nitrogenousfertilizer and containing nitrogenous fertilizer Chemical Mixed Fertilizer in one or more.
Described chemical fertilizer is carbamide.
The mass ratio of hollow ceramic microspheres and chemical fertilizer described in step (1) is (1:2)～(5:4).
Described in step (1), the mol ratio of formaldehyde and chemical fertilizer is 1:(1～1.80).
Described in step (2), the solution temperature of chemical fertilizer is 35 DEG C.
The appendix time carrying out chemical fertilizer appendix described in step (3) is 0.5min～10min.
The invention have the benefit that
In the present invention, gangue hollow ceramic fine bead and fly ash hollow ceramic fine bead are Tsing-Hua University and Hebei YL-inno Co., Ltd.'s independent research (Chinese invention patent: 200910131051.7), utilize its good absorption property appendix carbamide, and by further synthetic reaction, it is thus achieved that the slow release chemical fertilizer that slow-release period is longer. The method cost is low, is suitable for wide.
Accompanying drawing explanation
The shape appearance figure of the hollow ceramic microspheres used in the present invention under Fig. 1 and Fig. 2 respectively different scale.
Detailed description of the invention
A kind of method that the invention provides hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer, below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment 1
The HF18 instant nitrogenousfertilizer granule that the Wuwei County flower fertilizer factory of the gangue hollow ceramic fine bead and 5g that weigh 6g produces, is at utmost dissolved in the water this instant nitrogenousfertilizer in 35 DEG C, is configured to saturated solution. Being put into gradually by hollow ceramic microspheres in gained instant nitrogenousfertilizer saturated solution, and keep 2 minutes, saturated fertilizer solution all carries out appendix (does not have residual solution) in hollow ceramic microspheres. It is 1:1 by the mol ratio of carbamide in instant nitrogenousfertilizer and formaldehyde, weigh formaldehyde, the hollow ceramic microspheres of whole for load instant nitrogenousfertilizer saturated solutions is added in formaldehyde, carry out addition and condensation reaction, make synthesis ureaformaldehyde composition in hollow ceramic microspheres, thus obtaining gangue hollow ceramic fine bead appendix urea aldehyde slow release chemical fertilizer 22.9g, the efficiency slow release phase can be extended 20% by gained gangue hollow ceramic fine bead appendix urea aldehyde slow release chemical fertilizer.
Embodiment 2
The HF18 instant nitrogenousfertilizer granule that the Wuwei County flower fertilizer factory of the gangue hollow ceramic fine bead and 5g that weigh 6g produces, is at utmost dissolved in the water this instant nitrogenousfertilizer in 35 DEG C, is configured to saturated solution. Being put into gradually by hollow ceramic microspheres in gained instant nitrogenousfertilizer saturated solution, and keep 2 minutes, saturated fertilizer solution all carries out appendix (does not have residual solution) in hollow ceramic microspheres. It is 1.4:1 by the mol ratio of carbamide in instant nitrogenousfertilizer and formaldehyde, weigh formaldehyde, the hollow ceramic microspheres of whole for load instant nitrogenousfertilizer saturated solutions is added in formaldehyde, carry out addition and condensation reaction, obtaining gangue hollow ceramic fine bead appendix urea aldehyde slow release chemical fertilizer 20.7g, the efficiency slow release phase can be extended 20% by gained gangue hollow ceramic fine bead appendix urea aldehyde slow release chemical fertilizer.
Claims (5)
1. the method for a hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer, it is characterised in that specifically comprise the following steps that
(1) hollow ceramic microspheres, chemical fertilizer and formaldehyde are weighed in proportion get the raw materials ready
(2) chemical fertilizer is dissolved in the water, is configured to saturated solution;
(3) hollow ceramic microspheres is added in step (2) gained saturated solution, described saturated solution is all adsorbed, thus carrying out chemical fertilizer appendix;
(4) hollow ceramic microspheres of chemical fertilizer adds formaldehyde at the appendix processed through step (3), the chemical fertilizer making hollow ceramic microspheres institute appendix carries out addition and condensation reaction, it is thus achieved that have the hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer of dual-sustained-release effect;
Described hollow ceramic microspheres is gangue hollow ceramic fine bead or fly ash hollow ceramic fine bead;
The mass ratio of hollow ceramic microspheres and chemical fertilizer described in step (1) is (1:2)～(5:4); The mol ratio of described formaldehyde and chemical fertilizer is 1:(1～1.80).
2. the method for a kind of hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer according to claim 1, it is characterised in that: described chemical fertilizer is nitrogenous fertilizer and/or the Chemical Mixed Fertilizer containing nitrogenous fertilizer.
3. the method for a kind of hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer according to claim 1, it is characterised in that: described chemical fertilizer is carbamide.
4. the method for a kind of hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer according to claim 1, it is characterised in that: described in step (2), the solution temperature of chemical fertilizer is 35 DEG C.
5. the method for a kind of hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer according to claim 1, it is characterised in that: the appendix time carrying out chemical fertilizer appendix described in step (3) is 0.5min～10min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410120780.3A CN103880549B (en) | 2014-03-27 | 2014-03-27 | A kind of method of hollow ceramic microspheres appendix urea aldehyde slow release chemical fertilizer |
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| CN103880549B true CN103880549B (en) | 2016-06-15 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108033844A (en) * | 2017-12-31 | 2018-05-15 | 长沙善道新材料科技有限公司 | A kind of resin coated fertilizers and its manufacture method |
| CN111534465A (en) * | 2020-05-09 | 2020-08-14 | 山东植丰农化集团有限公司 | Special load type slow and controlled release fertilizer for economic crops and preparation method thereof |
| CN112358351A (en) * | 2020-11-10 | 2021-02-12 | 宁波大学 | Ceramic hollow microsphere coated fish protein amino acid water-soluble slow-release fertilizer and preparation method thereof |
| CN114213188A (en) * | 2021-12-27 | 2022-03-22 | 南京小田网络科技有限公司 | Slow-release long-acting horticultural fertilizer and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198425A (en) * | 1998-06-02 | 1998-11-11 | 朱永绥 | Method for producing urea-formaldehyde compound fertilizer |
| CN1470485A (en) * | 2002-07-23 | 2004-01-28 | 中国科学院南京土壤研究所 | Carrier type slow-release fertilizer and its preparing method |
| CN101870588A (en) * | 2009-04-21 | 2010-10-27 | 河北勇龙邦大新材料有限公司 | Method and device for preparing hollow ceramic microspheres |
| CN101948352A (en) * | 2010-09-15 | 2011-01-19 | 廖大中 | Method for preparing sustained-release fertilizer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100336779C (en) * | 2004-12-06 | 2007-09-12 | 淄博博纳科技发展有限公司 | Microporous ceramic ball for comprehensive control of plant growth and its prepn process |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198425A (en) * | 1998-06-02 | 1998-11-11 | 朱永绥 | Method for producing urea-formaldehyde compound fertilizer |
| CN1470485A (en) * | 2002-07-23 | 2004-01-28 | 中国科学院南京土壤研究所 | Carrier type slow-release fertilizer and its preparing method |
| CN101870588A (en) * | 2009-04-21 | 2010-10-27 | 河北勇龙邦大新材料有限公司 | Method and device for preparing hollow ceramic microspheres |
| CN101948352A (en) * | 2010-09-15 | 2011-01-19 | 廖大中 | Method for preparing sustained-release fertilizer |
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Owner name: HEBEI YL-INNO CO., LTD. Free format text: FORMER OWNER: HEBEI YL-INNO CO., LTD. VISIONHOUSE INDUSTRIALIZATION INTEGRATED TECHNOLOGY CO., LTD. Effective date: 20150518 |
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Effective date of registration: 20150518 Address after: 100084 Beijing, Beijing, 100084-82 mailbox Applicant after: Tsinghua University Applicant after: Hebei YL-inno Co., Ltd. Address before: 100084 Beijing, Beijing, 100084-82 mailbox Applicant before: Tsinghua University Applicant before: Hebei YL-inno Co., Ltd. Applicant before: VISIONHOUSE INDUSTRIALIZATION INTEGRATED TECHNOLOGY CO., LTD. |
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Effective date of registration: 20180131 Address after: 100084 the 100084-82 letter box of Tsinghua University, Haidian District, Beijing Co-patentee after: New Mstar Technology Ltd (Tianjin) new Mstar Technology Ltd Patentee after: Tsinghua University Address before: 100084 Beijing, Beijing, 100084-82 mailbox Co-patentee before: Hebei YL-inno Co., Ltd. Patentee before: Tsinghua University |