CN102898221A - Preparation method of nitrogen-phosphorus-potassium compound fertilizer - Google Patents
Preparation method of nitrogen-phosphorus-potassium compound fertilizer Download PDFInfo
- Publication number
- CN102898221A CN102898221A CN2012104572744A CN201210457274A CN102898221A CN 102898221 A CN102898221 A CN 102898221A CN 2012104572744 A CN2012104572744 A CN 2012104572744A CN 201210457274 A CN201210457274 A CN 201210457274A CN 102898221 A CN102898221 A CN 102898221A
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- CN
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- Prior art keywords
- nitrogen
- phosphorus
- compound fertilizer
- potassium
- preparation
- 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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- 239000003337 fertilizer Substances 0.000 title claims abstract description 39
- WZLMXYBCAZZIRQ-UHFFFAOYSA-N [N].[P].[K] Chemical compound [N].[P].[K] WZLMXYBCAZZIRQ-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 62
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 28
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims abstract description 18
- 235000019837 monoammonium phosphate Nutrition 0.000 claims abstract description 18
- 239000006012 monoammonium phosphate Substances 0.000 claims abstract description 18
- 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 14
- 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
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 238000012216 screening Methods 0.000 claims abstract description 3
- 238000001035 drying Methods 0.000 claims abstract 2
- CHKVPAROMQMJNQ-UHFFFAOYSA-M potassium bisulfate Chemical compound [K+].OS([O-])(=O)=O CHKVPAROMQMJNQ-UHFFFAOYSA-M 0.000 claims description 17
- 239000008187 granular material Substances 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 abstract description 5
- 238000006298 dechlorination reaction 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
- 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
- 239000011259 mixed solution Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 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
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, definite saying is a kind of preparation method of nitrogen-phosphorus-potassium compound fertilizer.
Background technology
At present the method for manufacturing technology of nitrogen-phosphorus-potassium compound fertilizer is because the temperature of chemical reaction is higher, and produces easily biuret, can cause damage to soil.Therefore, how reducing biuret in the production process produces and just to have become root problem that the nitrogen-phosphorus-potassium compound fertilizer manufacturing need to solve.For this reason, the present inventor has done in earnest research, has proposed goal of the invention of the present invention.
Summary of the invention
Goal of the invention of the present invention puts forward in order to overcome the deficiency that produces biuret in the present nitrogen-phosphorus-potassium compound fertilizer manufacturing.A kind of preparation method of nitrogen-phosphorus-potassium compound fertilizer namely is provided.
Technical solution of the present invention is to realize like this; the preparation method of this nitrogen-phosphorus-potassium compound fertilizer; it is characterized in that the method may further comprise the steps: excess sulfuric acid and Repone K are reacted under Elevated Temperature Conditions in reactive tank; generation contains the sal enixum slip of excess sulfuric acid; the sal enixum slip that will contain excess sulfuric acid mixes with monoammonium phosphate liquid; jointly join sal enixum slip and monoammonium phosphate solution and synthetic ammonia in the reactor; under the condition that heats up, generate the composite fertilizer's slip that contains nitrogen phosphorus potassium; contain the material of nitrogen phosphorus potassium and the mixing solutions of nitric acid and water joins in the tablets press with reacted; add simultaneously synthetic ammonia; under the condition that heats up, form the compound fertilizer granules that contains nitrogen phosphorus potassium, with compound fertilizer granules through super-dry; cooling; screening.
Useful technique effect of the present invention is: Repone K is with excessive sulfuric acid dechlorination, and the low temperature combination reaction does not produce biuret.Contain nitric nitrogen in the fertilizer, early stage is quick-acting, and the later stage discharges stable.
Embodiment
The below provides specific embodiment, and structure of the present invention and use are elaborated.
Embodiment 1, excess sulfuric acid and Repone K are reacted under Elevated Temperature Conditions in reactive tank, generate the sal enixum slip that contains excess sulfuric acid, sulfuric acid with the Elevated Temperature Conditions that Repone K reacts is: in 80～130 ℃ of temperature ranges.Sulfuric acid uses the vitriol oil, and preferably concentration surpasses 90% sulfuric acid.200 kilograms of the sal enixum slips that will contain excess sulfuric acid mix with 80 kilograms of monoammonium phosphate liquid, and 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 joined in the reactor jointly, and reactor preferably uses the cross tubular reactor.Generate the composite fertilizer's slip that contains nitrogen phosphorus potassium under the condition that heats up, will contain the material of nitrogen phosphorus potassium and the mixing solutions of nitric acid and water and join in the tablets press, the specific gravity control of aqueous nitric acid is: 1.10～1.55.Add simultaneously synthetic ammonia, under the condition that heats up through granulation time of 1～5 minute.Formation contains the compound fertilizer granules of nitrogen phosphorus potassium, compound fertilizer granules through super-dry, be cooled to and sieve when the material particles surface temperature reaches 50～60 ℃ of temperature.
Embodiment 2,
Excess sulfuric acid and Repone K are reacted under Elevated Temperature Conditions in reactive tank, generate the sal enixum slip that contains excess sulfuric acid, the Elevated Temperature Conditions of sulfuric acid and Repone K reaction is: in 80～130 ℃ of temperature ranges.Sulfuric acid uses the vitriol oil, and preferably concentration surpasses 90% sulfuric acid.240 kilograms of the sal enixum slips that will contain excess sulfuric acid mix with 100 kilograms of monoammonium phosphate liquid, and 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 joined in the reactor jointly, and reactor preferably uses the cross tubular reactor.Generate the composite fertilizer's slip that contains nitrogen phosphorus potassium under the condition that heats up, will contain the material of nitrogen phosphorus potassium and the mixing solutions of nitric acid and water and join in the tablets press, the specific gravity control of aqueous nitric acid is: 1.10～1.55.Add simultaneously synthetic ammonia, under the condition that heats up through granulation time of 2～15 minutes.Formation contains the compound fertilizer granules of nitrogen phosphorus potassium, compound fertilizer granules through super-dry, be cooled to and sieve when the material particles surface temperature reaches 50～60 ℃ of temperature.
Excess sulfuric acid and Repone K are reacted under Elevated Temperature Conditions in reactive tank, generate the sal enixum slip that contains excess sulfuric acid, the Elevated Temperature Conditions of sulfuric acid and Repone K reaction is: in 80～130 ℃ of temperature ranges.Sulfuric acid uses the vitriol oil, and preferably concentration surpasses 90% sulfuric acid.300 kilograms of the sal enixum slips that will contain excess sulfuric acid mix with 120 kg monoammonium phosphate liquid, and 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 joined in the reactor jointly, and reactor preferably uses the cross tubular reactor.Generate the composite fertilizer's slip that contains nitrogen phosphorus potassium under the condition that heats up, will contain the material of nitrogen phosphorus potassium and the mixing solutions of nitric acid and water and join in the tablets press, the specific gravity control of aqueous nitric acid is: 1.10～1.55.Add simultaneously synthetic ammonia, under the condition that heats up through granulation time of 5～30 minutes.Formation contains the compound fertilizer granules of nitrogen phosphorus potassium, compound fertilizer granules through super-dry, be cooled to and sieve when the material particles surface temperature reaches 50～60 ℃ of temperature.
Claims (9)
1. the preparation method of a nitrogen-phosphorus-potassium compound fertilizer is characterized in that the method may further comprise the steps:
One, excess sulfuric acid and Repone K are reacted under Elevated Temperature Conditions in reactive tank, generate the sal enixum slip that contains excess sulfuric acid,
The sal enixum slip that two, will contain excess sulfuric acid mixes with monoammonium phosphate liquid,
Three, the sal enixum slip in the step 2 and monoammonium phosphate solution and synthetic ammonia are joined in the reactor jointly, under the condition that heats up, generate the composite fertilizer's slip that contains nitrogen phosphorus potassium,
Four, contain the material of nitrogen phosphorus potassium and the mixing solutions of nitric acid and water joins in the tablets press with reacted in the step 3, add simultaneously synthetic ammonia, under the condition that heats up, form the compound fertilizer granules that contains nitrogen phosphorus potassium,
Five, with the compound fertilizer granules in the step 4 through super-dry, cooling, screening.
2. according to the preparation method of a kind of nitrogen-phosphorus-potassium compound fertilizer claimed in claim 1, it is characterized in that the Elevated Temperature Conditions of said sulfuric acid and Repone K reaction is: in 80～130 ℃ of temperature ranges.
3. according to the preparation method of a kind of nitrogen-phosphorus-potassium compound fertilizer claimed in claim 1, it is levied the proportion that is said aqueous nitric acid and is: 1.10～1.55.
4. according to the preparation method of a kind of nitrogen-phosphorus-potassium compound fertilizer claimed in claim 1, it is characterized in that the blending ratio of the said sal enixum that contains excess sulfuric acid, monoammonium phosphate, synthetic ammonia is: sal enixum: monoammonium phosphate: synthetic ammonia=2.0～3.0: 0.8～1.2: 0.8～1.2.
5. according to the preparation method of a kind of nitrogen-phosphorus-potassium compound fertilizer claimed in claim 1, it is characterized in that said drying, be cooled to when the material particles surface temperature reaches 50～60 ℃ of temperature and sieve.
6. according to the preparation method of a kind of nitrogen-phosphorus-potassium compound fertilizer claimed in claim 1, it is characterized in that the proportion of said monoammonium phosphate solution is: 1.10～1.40.
7. according to the preparation method of a kind of nitrogen-phosphorus-potassium compound fertilizer claimed in claim 1, it is characterized in that said reactor is the cross tubular reactor.
8. according to the preparation method of a kind of nitrogen-phosphorus-potassium compound fertilizer claimed in claim 1, it is characterized in that the temperature under the said granulation Elevated Temperature Conditions is the surface temperature of material, temperature range is 60～90 ℃.
, according to the preparation method of a kind of nitrogen-phosphorus-potassium compound fertilizer claimed in claim 1, it is characterized in that the said granulation time is 1～30 minute.
Priority Applications (1)
| 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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| CN201210457274.4A CN102898221B (en) | 2012-11-15 | 2012-11-15 | Preparation method of nitrogen-phosphorus-potassium compound fertilizer |
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| CN102898221A true CN102898221A (en) | 2013-01-30 |
| CN102898221B CN102898221B (en) | 2015-05-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| TWI628156B (en) * | 2015-07-07 | 2018-07-01 | 台灣肥料股份有限公司 | 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 |
Families Citing this family (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 |
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 |
-
2012
- 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 (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 |
| 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 |
| 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 |
| TWI628156B (en) * | 2015-07-07 | 2018-07-01 | 台灣肥料股份有限公司 | 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 |
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| Publication number | Publication date |
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| CN102898221B (en) | 2015-05-20 |
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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. |