CN102898221B - Preparation method of nitrogen-phosphorus-potassium compound fertilizer - Google Patents
Preparation method of nitrogen-phosphorus-potassium compound fertilizer Download PDFInfo
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- CN102898221B CN102898221B CN201210457274.4A CN201210457274A CN102898221B CN 102898221 B CN102898221 B CN 102898221B CN 201210457274 A CN201210457274 A CN 201210457274A CN 102898221 B CN102898221 B CN 102898221B
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- China
- Prior art keywords
- sulfuric acid
- compound fertilizer
- nitrogen
- potassium
- phosphorus
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 31
- WZLMXYBCAZZIRQ-UHFFFAOYSA-N [N].[P].[K] Chemical compound [N].[P].[K] WZLMXYBCAZZIRQ-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 64
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 26
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims abstract description 15
- 235000019837 monoammonium phosphate Nutrition 0.000 claims abstract description 15
- 239000006012 monoammonium phosphate Substances 0.000 claims abstract description 15
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims abstract description 14
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 11
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910001868 water Inorganic materials 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 5
- CHKVPAROMQMJNQ-UHFFFAOYSA-M potassium bisulfate Chemical compound [K+].OS([O-])(=O)=O CHKVPAROMQMJNQ-UHFFFAOYSA-M 0.000 claims description 16
- 229910052698 phosphorus Inorganic materials 0.000 claims description 15
- 229910052700 potassium Inorganic materials 0.000 claims description 15
- 239000008187 granular material Substances 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 7
- 238000005469 granulation Methods 0.000 claims description 6
- 230000003179 granulation Effects 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- MTJGVAJYTOXFJH-UHFFFAOYSA-N 3-aminonaphthalene-1,5-disulfonic acid Chemical compound C1=CC=C(S(O)(=O)=O)C2=CC(N)=CC(S(O)(=O)=O)=C21 MTJGVAJYTOXFJH-UHFFFAOYSA-N 0.000 claims 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000006298 dechlorination reaction Methods 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 abstract 4
- JTNCEQNHURODLX-UHFFFAOYSA-N 2-phenylethanimidamide Chemical compound NC(=N)CC1=CC=CC=C1 JTNCEQNHURODLX-UHFFFAOYSA-N 0.000 abstract 3
- 229910000343 potassium bisulfate Inorganic materials 0.000 abstract 3
- 238000010792 warming Methods 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 235000011164 potassium chloride Nutrition 0.000 abstract 2
- 239000001103 potassium chloride Substances 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- 238000003786 synthesis reaction Methods 0.000 abstract 2
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 abstract 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- ZUQOBHTUMCEQBG-UHFFFAOYSA-N 4-amino-5-hydroxynaphthalene-1,7-disulfonic acid Chemical compound OS(=O)(=O)C1=CC(O)=C2C(N)=CC=C(S(O)(=O)=O)C2=C1 ZUQOBHTUMCEQBG-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Fertilizers (AREA)
Abstract
The invention discloses a preparation method of a nitrogen-phosphorus-potassium compound fertilizer. The method comprises the steps of: enabling excessive sulfuric acid to react with potassium chloride in a reaction tank in the condition of warming up to generate potassium bisulfate slurry containing excessive sulfuric acid, mixing the potassium bisulfate slurry containing excessive sulfuric acid with a monoammonium phosphate solution, adding the potassium bisulfate slurry and the monoammonium phosphate solution as well as synthesis ammonia into a reactor together, so as to generate compound fertilizer slurry containing nitrogen-phosphorus-potassium in the condition of warming up, adding the mixed solution of the material containing nitrogen-phosphorus-potassium after reaction and nitric acid as well as water into a granulator, simultaneously adding the synthesis ammonia so as to generate compound fertilizer particles containing the nitrogen-phosphorus-potassium in the condition of warming up, drying, cooling and screening the compound fertilizer particles. The preparation method has the advantages that the potassium chloride is subjected to dechlorination with the excessive sulfuric acid, and biuret is not produced in the low-temperature combination reaction. The fertilizer contains nitrate nitrogen and ammonium nitrogen, and is quick in effect in the early stage and stable in release in the later stage.
Description
Technical field
The invention belongs to the manufacture method of chemical fertilizer, is specifically a kind of preparation method of nitrogen-phosphorus-potassium compound fertilizer.
Background technology
The method of manufacturing technology of current nitrogen-phosphorus-potassium compound fertilizer is higher due to the temperature of chemical reaction, and easily produces biuret, can cause damage to soil.Therefore, the biuret how reduced in production process produces the root problem just becoming the solution of nitrogen-phosphorus-potassium compound fertilizer manufacture needs.For this reason, the present inventor has done and has studied in earnest, proposes goal of the invention of the present invention.
Summary of the invention
Goal of the invention of the present invention puts forward to overcome the deficiency producing biuret in current nitrogen-phosphorus-potassium compound fertilizer manufacture.Namely a kind of preparation method of nitrogen-phosphorus-potassium compound fertilizer is provided.
Technical solution of the present invention realizes like this, the preparation method of this nitrogen-phosphorus-potassium compound fertilizer, it is characterized in that the method comprises the following steps: excess sulfuric acid and Repone K are reacted under Elevated Temperature Conditions in reactive tank, generate the sal enixum slip containing excess sulfuric acid, sal enixum slip containing excess sulfuric acid is mixed with monoammonium phosphate liquid, sal enixum slip and monoammonium phosphate solution and synthetic ammonia are joined in reactor jointly, the composite fertilizer's slip containing N P and K is generated under the condition heated up, join in tablets press by reacted containing the material of N P and K and the mixing solutions of nitric acid and water, add synthetic ammonia simultaneously, the compound fertilizer granules containing N P and K is formed under the condition heated up, by compound fertilizer granules through super-dry, cooling, screening.
Useful technique effect of the present invention is: the excessive sulfuric acid dechlorination of Repone K, low temperature combination reaction does not produce biuret.Containing nitric nitrogen in fertilizer, early stage is quick-acting, and later stage release is stable.
Embodiment
Provide specific embodiment below, structure of the present invention and use are described in detail.
Embodiment 1, excess sulfuric acid and Repone K are reacted under Elevated Temperature Conditions in reactive tank, generate the sal enixum slip containing excess sulfuric acid, the Elevated Temperature Conditions that sulfuric acid and Repone K react is: in 80 ~ 130 DEG C of temperature ranges.Sulfuric acid uses the vitriol oil, the preferably sulfuric acid of concentration more than 90%.Mixed with 80 kg of phosphoric acid one ammonium liquid by sal enixum slip 200 kilograms containing excess sulfuric acid, the specific gravity control of monoammonium phosphate solution is: 1.10 ~ 1.40.Sal enixum slip and monoammonium phosphate solution and 80 kilograms of synthetic ammonia are jointly joined in reactor, reactor preferably uses cross tubular reactor.Under the condition heated up, generate the composite fertilizer's slip containing N P and K, join in tablets press by the mixing solutions of the material containing N P and K and nitric acid and water, the specific gravity control of aqueous nitric acid is: 1.10 ~ 1.55.Add synthetic ammonia, through the granulation time of 1 ~ 5 minute under the condition heated up simultaneously.Formed containing the compound fertilizer granules of N P and K, compound fertilizer granules through super-dry, be cooled to when material particles surface temperature reaches 50 ~ 60 DEG C of temperature and sieve.
Embodiment 2,
Excess sulfuric acid and Repone K are reacted under Elevated Temperature Conditions in reactive tank, generate the sal enixum slip containing excess sulfuric acid, the Elevated Temperature Conditions that sulfuric acid and Repone K react is: in 80 ~ 130 DEG C of temperature ranges.Sulfuric acid uses the vitriol oil, the preferably sulfuric acid of concentration more than 90%.Mixed with 100 kg of phosphoric acid one ammonium liquid by sal enixum slip 240 kilograms containing excess sulfuric acid, the specific gravity control of monoammonium phosphate solution is: 1.10 ~ 1.40.Sal enixum slip and monoammonium phosphate solution and 100 kilograms of synthetic ammonia are jointly joined in reactor, reactor preferably uses cross tubular reactor.Under the condition heated up, generate the composite fertilizer's slip containing N P and K, join in tablets press by the mixing solutions of the material containing N P and K and nitric acid and water, the specific gravity control of aqueous nitric acid is: 1.10 ~ 1.55.Add synthetic ammonia, through the granulation time of 2 ~ 15 minutes under the condition heated up simultaneously.Formed containing the compound fertilizer granules of N P and K, compound fertilizer granules through super-dry, be cooled to when material particles surface temperature reaches 50 ~ 60 DEG C of temperature and sieve.
Excess sulfuric acid and Repone K are reacted under Elevated Temperature Conditions in reactive tank, generate the sal enixum slip containing excess sulfuric acid, the Elevated Temperature Conditions that sulfuric acid and Repone K react is: in 80 ~ 130 DEG C of temperature ranges.Sulfuric acid uses the vitriol oil, the preferably sulfuric acid of concentration more than 90%.Mixed with 120 kg monoammonium phosphate liquid by sal enixum slip 300 kilograms containing excess sulfuric acid, the specific gravity control of monoammonium phosphate solution is: 1.10 ~ 1.40.Sal enixum slip and monoammonium phosphate solution and 120 kg synthetic ammonia are jointly joined in reactor, reactor preferably uses cross tubular reactor.Under the condition heated up, generate the composite fertilizer's slip containing N P and K, join in tablets press by the mixing solutions of the material containing N P and K and nitric acid and water, the specific gravity control of aqueous nitric acid is: 1.10 ~ 1.55.Add synthetic ammonia, through the granulation time of 5 ~ 30 minutes under the condition heated up simultaneously.Formed containing the compound fertilizer granules of N P and K, compound fertilizer granules through super-dry, be cooled to when material particles surface temperature reaches 50 ~ 60 DEG C of temperature and sieve.
Claims (1)
1. a preparation method for nitrogen-phosphorus-potassium compound fertilizer, is characterized in that, the method comprises the following steps:
1) excess sulfuric acid and Repone K are reacted under Elevated Temperature Conditions in reactive tank, generate the sal enixum slip containing excess sulfuric acid, the Elevated Temperature Conditions that sulfuric acid and Repone K react is: 80 DEG C ~ 130 DEG C, and sulfuric acid uses the vitriol oil more than 90%;
2) mixed by the sal enixum slip monoammonium phosphate liquid containing excess sulfuric acid, the proportion of monoammonium phosphate solution is: 1.10 ~ 1.40;
3) sal enixum slip and monoammonium phosphate solution and synthetic ammonia are jointly joined in reactor, reactor uses cross tubular reactor, generates the composite fertilizer's slip containing N P and K under the condition heated up; The mass mixing ratio of the sal enixum containing excess sulfuric acid, monoammonium phosphate, synthetic ammonia is 2.4 ~ 2.5: 1: 1;
4) what step 3) obtained joins in tablets press containing the material of N P and K and the mixing solutions of nitric acid and water, the specific gravity control of aqueous nitric acid is: 1.10 ~ 1.55, add synthetic ammonia, granulation under the condition heated up simultaneously, form the compound fertilizer granules containing N P and K;
Temperature under granulation Elevated Temperature Conditions is the surface temperature of material, and temperature range is 60 DEG C ~ 90 DEG C; Granulation time is 1 ~ 30 minute;
5) compound fertilizer granules through super-dry, be cooled to when material particles surface temperature reaches 50 DEG C ~ 60 DEG C of temperature and sieve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210457274.4A CN102898221B (en) | 2012-11-15 | 2012-11-15 | Preparation method of nitrogen-phosphorus-potassium compound fertilizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210457274.4A CN102898221B (en) | 2012-11-15 | 2012-11-15 | Preparation method of nitrogen-phosphorus-potassium compound fertilizer |
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| Publication Number | Publication Date |
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| CN102898221A CN102898221A (en) | 2013-01-30 |
| CN102898221B true CN102898221B (en) | 2015-05-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111423270A (en) * | 2020-03-25 | 2020-07-17 | 贵州省草业研究所 | Base fertilizer for pasture planting and preparation method thereof |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105315037A (en) * | 2014-08-05 | 2016-02-10 | 中化山东肥业有限公司 | Process for producing high potassium nitro fertilizer by gunite method |
| CN104761343A (en) * | 2015-03-23 | 2015-07-08 | 戴威农业科技发展股份有限公司 | Carbon-based composite fertilizer and preparation method thereof |
| CN104725138A (en) * | 2015-03-23 | 2015-06-24 | 戴威农业科技发展股份有限公司 | Carbon matrix compound fertilizer and preparation method thereof |
| CN105036847B (en) * | 2015-07-07 | 2018-04-27 | 台湾肥料股份有限公司 | Nitro-compound fertilizer and preparation method thereof |
| CN109608247A (en) * | 2019-01-22 | 2019-04-12 | 盘锦冠桥复合肥科技服务有限公司 | A kind of production method of novel ammonification S-based compound fertilizer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328090A (en) * | 2008-04-18 | 2008-12-24 | 中国-阿拉伯化肥有限公司 | Method for producing nitro-sulfur-based nitrogen and potassium compound fertilizer |
| CN102010267A (en) * | 2010-10-19 | 2011-04-13 | 戴威肥业（山东）有限公司 | Preparation method of nitrocompound fertilizer |
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- 2012-11-15 CN CN201210457274.4A patent/CN102898221B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328090A (en) * | 2008-04-18 | 2008-12-24 | 中国-阿拉伯化肥有限公司 | Method for producing nitro-sulfur-based nitrogen and potassium compound fertilizer |
| CN102010267A (en) * | 2010-10-19 | 2011-04-13 | 戴威肥业（山东）有限公司 | Preparation method of nitrocompound fertilizer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111423270A (en) * | 2020-03-25 | 2020-07-17 | 贵州省草业研究所 | Base fertilizer for pasture planting and preparation method thereof |
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| CN102898221A (en) | 2013-01-30 |
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Effective date of registration: 20160223 Address after: 262700 Lingang Industrial Park, Shouguang City, Shandong, Weifang Patentee after: DAIWEI ECOLOGICAL ENGINEERING DEVELOPMENT Co.,Ltd. Address before: 262700 Shouguang Road, Shouguang, Shandong Province, No. 1377 Patentee before: DAIWEI AGRICULTURAL SCIENCE & TECHNOLOGY DEVELOPMENT LLC |
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Effective date of registration: 20211123 Address after: 262700 north of 600m Road West of the intersection of Shouyao road and maze Road, sunjiaji street, Shouguang City, Weifang City, Shandong Province Patentee after: Shandong Junan Ecological Agriculture Technology Co.,Ltd. Address before: 262700 in Lingang Industrial Park, Shouguang City, Weifang City, Shandong Province Patentee before: DAIWEI ECOLOGICAL ENGINEERING DEVELOPMENT Co.,Ltd. |
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Effective date of registration: 20231013 Address after: Building 19, 11th Floor, Enterprise Headquarters Group, Luocheng Street, Shouguang City, Weifang City, Shandong Province, 261000 Patentee after: Shandong Leguan Crop Nutrition Co.,Ltd. Address before: 262700 north of 600m Road West of the intersection of Shouyao road and maze Road, sunjiaji street, Shouguang City, Weifang City, Shandong Province Patentee before: Shandong Junan Ecological Agriculture Technology Co.,Ltd. |
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