CN113277907A - Method for preparing nitrate nitrogen-containing fertilizer special for fruits and vegetables - Google Patents
Method for preparing nitrate nitrogen-containing fertilizer special for fruits and vegetables Download PDFInfo
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- CN113277907A CN113277907A CN202110624389.7A CN202110624389A CN113277907A CN 113277907 A CN113277907 A CN 113277907A CN 202110624389 A CN202110624389 A CN 202110624389A CN 113277907 A CN113277907 A CN 113277907A
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- granulation
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- vegetables
- nitrate nitrogen
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 29
- 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 title claims abstract description 19
- 235000012055 fruits and vegetables Nutrition 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002002 slurry Substances 0.000 claims abstract description 27
- 238000005469 granulation Methods 0.000 claims abstract description 26
- 230000003179 granulation Effects 0.000 claims abstract description 26
- AMIMRNSIRUDHCM-UHFFFAOYSA-N Isopropylaldehyde Chemical compound CC(C)C=O AMIMRNSIRUDHCM-UHFFFAOYSA-N 0.000 claims abstract description 22
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 16
- NGLMYMJASOJOJY-UHFFFAOYSA-O azanium;calcium;nitrate Chemical compound [NH4+].[Ca].[O-][N+]([O-])=O NGLMYMJASOJOJY-UHFFFAOYSA-O 0.000 claims abstract description 13
- 239000006227 byproduct Substances 0.000 claims abstract description 13
- 239000011573 trace mineral Substances 0.000 claims abstract description 13
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004202 carbamide Substances 0.000 claims abstract description 12
- 235000013619 trace mineral Nutrition 0.000 claims abstract description 12
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004021 humic acid Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims abstract description 11
- 235000019796 monopotassium phosphate Nutrition 0.000 claims abstract description 11
- 229940061605 tetrasodium glutamate diacetate Drugs 0.000 claims abstract description 11
- UZVUJVFQFNHRSY-OUTKXMMCSA-J tetrasodium;(2s)-2-[bis(carboxylatomethyl)amino]pentanedioate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CC[C@@H](C([O-])=O)N(CC([O-])=O)CC([O-])=O UZVUJVFQFNHRSY-OUTKXMMCSA-J 0.000 claims abstract description 11
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 9
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 8
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims abstract description 8
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000006012 monoammonium phosphate Substances 0.000 claims abstract description 8
- 235000019837 monoammonium phosphate Nutrition 0.000 claims abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 239000010457 zeolite Substances 0.000 claims abstract description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 6
- 229940072033 potash Drugs 0.000 claims abstract description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims abstract description 6
- 235000015320 potassium carbonate Nutrition 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 235000015097 nutrients Nutrition 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000292 calcium oxide Substances 0.000 claims description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 claims 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000000047 product Substances 0.000 abstract description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 6
- 239000011574 phosphorus Substances 0.000 abstract description 6
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 4
- 235000021190 leftovers Nutrition 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- QFHMNFAUXJAINK-UHFFFAOYSA-N [1-(carbamoylamino)-2-methylpropyl]urea Chemical compound NC(=O)NC(C(C)C)NC(N)=O QFHMNFAUXJAINK-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- 241000207199 Citrus Species 0.000 description 1
- 241000219315 Spinacia Species 0.000 description 1
- 235000009337 Spinacia oleracea Nutrition 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- CYUOWZRAOZFACA-UHFFFAOYSA-N aluminum iron Chemical compound [Al].[Fe] CYUOWZRAOZFACA-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000009920 chelation Effects 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/20—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for preventing the fertilisers being reduced to powder; Anti-dusting additives
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/30—Anti-agglomerating additives; Anti-solidifying additives
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a method for preparing nitrate nitrogen-containing fertilizer special for fruits and vegetables, which comprises the steps of mixing by-products of calcium ammonium nitrate, monoammonium phosphate, potash fertilizer and zeolite powder, then putting the mixture into a granulation cylinder, and spraying concentrated slurry mixed by urea, isobutyraldehyde, potassium dihydrogen phosphate, dilute sulfuric acid, tetrasodium glutamate diacetate, medium trace elements and humic acid for granulation. The waste resources can be reasonably utilized, the production efficiency is greatly improved, the returned materials of a production system are less, the appearance of a product is improved, and the product is not agglomerated or pulverized; can improve the utilization rate of nitrogen and phosphorus, and the fertilizer efficiency reaches more than six months.
Description
Technical Field
The invention belongs to the technical field of preparation methods of agricultural fertilizers, and particularly relates to a preparation method of a nitrate nitrogen-containing fertilizer special for fruits and vegetables.
Background
The byproduct calcium ammonium nitrate of leftovers of pharmaceutical factories is offwhite powder, is 100 percent soluble in water, has safer and more comprehensive nutrients than commonly used agricultural ammonium nitrate, has small pH value after being applied to soil, can reduce the concentration of active aluminum, reduce the fixation of active phosphorus, can not cause soil hardening, can loosen the soil, and is popular with farmers.
In the process of producing the compound fertilizer by using a granulation method by using by-product calcium ammonium nitrate at present, if raw material components containing urea are added into a granulation cylinder, the materials are often large balls, the granulation cylinder is seriously scabbed, the whole production system has more returned materials, the yield is lower, and the particles are rough and unsmooth; and the finished fertilizer is particularly easy to agglomerate and pulverize.
Disclosure of Invention
Aiming at the prior art, the invention provides the method for preparing the nitrate nitrogen-containing fertilizer special for fruits and vegetables, which can reasonably utilize waste resources, greatly improve the production safety, reduce the return materials of a production system, improve the appearance of products, prevent agglomeration and pulverization; can improve the utilization rate of nitrogen and phosphorus, and the fertilizer efficiency reaches more than six months.
The invention is realized by the following technical scheme:
a process for preparing nitrate nitrogen-containing fertilizer specially used for fruit and vegetable includes such steps as mixing by-product calcium ammonium nitrate, monoammonium phosphate, potash fertilizer and zeolite powder, granulating, and spraying the mixture of urea, isobutyraldehyde, potassium dihydrogen phosphate, dilute sulfuric acid, tetrasodium glutamate diacetate, medium-trace elements and humic acid to obtain thick slurry.
The main raw material by-product calcium ammonium nitrate of the invention is leftovers of pharmaceutical factories containing nitrogen, calcium, magnesium and iron, is produced in the nitration working section of a large pharmaceutical factory, the quantity produced per year reaches more than ten thousand tons, the nutrient composition of the leftovers is that nitrogen is more than or equal to 20 percent, calcium oxide is more than or equal to 4 percent, magnesium oxide is more than or equal to 3 percent and iron is more than or equal to 0.1 percent, wherein nitrate nitrogen is more than or equal to 10 percent, can be completely dissolved in water and is physiologically neutral.
When thick slurry is prepared, 1000-5000 parts of urea, 1000 parts of water, 20-50 parts of isobutyraldehyde and 0, 5-5 parts of potassium dihydrogen phosphate are sequentially added into a slurry tank to be used as catalysts, and dilute sulfuric acid is used for regulating the pH value to be 3.5-4.5. Heating to 50-60 ℃, and stirring vigorously for 30 minutes; and finally, adding 20-45 parts of tetrasodium glutamate diacetate, 5-25 parts of medium trace elements and 10-300 parts of humic acid, fully mixing, and spraying the prepared thick slurry into a granulation cylinder for granulation.
A preparation method of a nitrate nitrogen-containing fertilizer special for fruits and vegetables is further preferable, 3000 parts of urea, 1000 parts of water, 35 parts of isobutyraldehyde and 1 part of potassium dihydrogen phosphate are sequentially added into a slurry tank to serve as catalysts, and dilute sulfuric acid is used for adjusting the pH value to be 3.8-4.2. Heating to 55 ℃, and stirring vigorously for 30 minutes; and finally, adding 30 parts of tetrasodium glutamate diacetate, 15 parts of medium trace elements and 50 parts of humic acid, fully mixing to prepare thick slurry, and spraying the thick slurry into a granulation cylinder for granulation.
In the invention, the urea aqueous solution reacts with isobutyraldehyde under an acidic condition, potassium dihydrogen phosphate is selected as a catalyst to generate part of isobutylidene diurea which is insoluble in water and suspended in concentrated slurry. The isobutylidene diurea has long lasting time and the characteristic of slowly releasing nitrogen, and can slow down the mineralization and fixation of an aluminum-iron phase of phosphorus in soil and improve the utilization rate of phosphorus. The tetrasodium glutamate diacetate and the humic acid have the function of chelating the medium and trace elements, and are vigorously stirred with the medium and trace elements in the slurry, so that the chelation is more sufficient, and the effectiveness of the medium and trace elements is improved.
And spraying the concentrated slurry into a granulation cylinder for granulation, wherein the dosage of the concentrated slurry is 2-10% of the total mass of the byproduct calcium ammonium nitrate, monoammonium phosphate, potash fertilizer and zeolite powder, and the preferred dosage is 5%.
The invention has the beneficial effects that: the materials in the granulation cylinder are easy to form balls, the material return of the whole production system is reduced, and the yield is improved. The waste resources can be reasonably utilized, the production efficiency is greatly improved, the appearance of the product is improved, and the product is not agglomerated or pulverized; can improve the utilization rate of nitrogen and phosphorus, and the fertilizer efficiency reaches more than six months.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The invention aims to overcome the defects in the process of producing the compound fertilizer by byproduct calcium ammonium nitrate in the prior art, the byproduct calcium ammonium nitrate, monoammonium phosphate, potash fertilizer and zeolite powder are mixed and then enter a granulation cylinder, and urea, isobutyraldehyde, potassium dihydrogen phosphate, dilute sulfuric acid, tetrasodium glutamate diacetate, medium trace elements and humic acid mixed concentrated slurry are sprayed for granulation.
Example 1:
adding 3000 parts of urea, 1000 parts of water, 35 parts of isobutyraldehyde and 1 part of potassium dihydrogen phosphate into a slurry tank in sequence as catalysts, and adjusting the pH value to 3.8-4.2 by using dilute sulfuric acid. Heating to 55 ℃, and stirring vigorously for 30 minutes; and finally, adding 30 parts of tetrasodium glutamate diacetate, 15 parts of medium trace elements and 50 parts of humic acid, and fully mixing to prepare 4131 parts of concentrated slurry.
525 kg of by-product calcium ammonium nitrate, 230 kg of monoammonium phosphate, 180 kg of 58% potassium chloride and 20 kg of zeolite powder are added into the granulation cylinder for mixing, and 45 kg of concentrated slurry is sprayed for granulation. The balling rate of the materials is more than 95 percent, the particle size is uniform and smooth, and the material return of the screening system is low. The sample is inspected after being placed for 6 months, and the sample is free from caking and powdering.
The obtained product is special fertilizer for spinach containing nitrate nitrogen, and the nitrate nitrogen is more than or equal to 5 percent.
Example 2:
3500 parts of urea, 1000 parts of water, 40 parts of isobutyraldehyde and 1 part of potassium dihydrogen phosphate are sequentially added into a slurry tank as catalysts, and dilute sulfuric acid is used for regulating the pH value to be 3.8-4.2. Heating to 55 ℃, and stirring vigorously for 30 minutes; and finally, adding 20 parts of tetrasodium glutamate diacetate, 15 parts of medium trace elements and 60 parts of humic acid, and fully mixing to prepare 4636 parts of concentrated slurry.
540 kg of by-product calcium ammonium nitrate, 240 kg of monoammonium phosphate, 160 kg of potassium sulfate with 52 percent content and 10 kg of zeolite powder are added into a granulation cylinder for mixing, and 50 kg of concentrated slurry is sprayed for granulation. The balling rate of the materials is more than 95 percent, the particle size is uniform and smooth, and the material return of the screening system is low. The sample is inspected after being placed for 6 months, and the sample is free from caking and powdering.
The obtained product is a special fertilizer for citrus containing nitrate nitrogen, and the nitrate nitrogen is more than or equal to 5 percent.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The method for preparing the nitrate nitrogen-containing fertilizer special for fruits and vegetables is characterized in that the nitrate nitrogen-containing fertilizer is prepared by mixing by-products of calcium ammonium nitrate, monoammonium phosphate, potash fertilizer and zeolite powder, then putting the mixture into a granulation cylinder, and spraying concentrated slurry mixed by urea, isobutyraldehyde, monopotassium phosphate, dilute sulfuric acid, tetrasodium glutamate diacetate, medium trace elements and humic acid for granulation.
2. The method for preparing the nitrate nitrogen-containing fertilizer special for fruits and vegetables as claimed in claim 1, wherein the byproduct calcium ammonium nitrate is a pharmaceutical factory leftover containing nitrogen, calcium, magnesium and iron, and the nutrient composition of the fertilizer is that nitrogen is more than or equal to 20%, calcium oxide is more than or equal to 4%, magnesium oxide is more than or equal to 3%, and iron is more than or equal to 0.1%, wherein nitrate nitrogen is more than or equal to 10%, can be completely dissolved in water, and is physiologically neutral.
3. The method for preparing nitrate nitrogen-containing fertilizer special for fruits and vegetables as claimed in claim 1, wherein 1000-5000 parts of urea, 1000 parts of water, 20-50 parts of isobutyraldehyde and 0, 5-5 parts of monopotassium phosphate are sequentially added into a slurry tank as catalysts, and diluted sulfuric acid is used for adjusting the pH value to 3.5-4.5. Heating to 50-60 ℃, and stirring vigorously for 30 minutes; and finally, adding 20-45 parts of tetrasodium glutamate diacetate, 5-25 parts of medium trace elements and 10-300 parts of humic acid, fully mixing, and spraying the prepared thick slurry into a granulation cylinder for granulation.
4. The method for preparing a nitrate nitrogen-containing fertilizer special for fruits and vegetables as claimed in claim 1, wherein 3000 parts of urea, 1000 parts of water, 35 parts of isobutyraldehyde and 1 part of potassium dihydrogen phosphate are sequentially added into a slurry tank as a catalyst, and the pH value is adjusted to 3.8-4.2 by using dilute sulfuric acid. Heating to 55 ℃, and stirring vigorously for 30 minutes; and finally, adding 30 parts of tetrasodium glutamate diacetate, 15 parts of medium trace elements and 50 parts of humic acid, fully mixing to prepare thick slurry, and spraying the thick slurry into a granulation cylinder for granulation.
5. The method for preparing the nitrate nitrogen-containing fertilizer special for fruits and vegetables, as claimed in claim 1, is characterized in that the concentrated slurry is sprayed into a granulation cylinder for granulation, and the dosage of the concentrated slurry is 2-10%, and more preferably 5% of the total mass of the byproduct calcium ammonium nitrate, monoammonium phosphate, potash fertilizer and zeolite powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110624389.7A CN113277907A (en) | 2021-06-04 | 2021-06-04 | Method for preparing nitrate nitrogen-containing fertilizer special for fruits and vegetables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110624389.7A CN113277907A (en) | 2021-06-04 | 2021-06-04 | Method for preparing nitrate nitrogen-containing fertilizer special for fruits and vegetables |
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| Publication Number | Publication Date |
|---|---|
| CN113277907A true CN113277907A (en) | 2021-08-20 |
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| CN202110624389.7A Pending CN113277907A (en) | 2021-06-04 | 2021-06-04 | Method for preparing nitrate nitrogen-containing fertilizer special for fruits and vegetables |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106083492A (en) * | 2016-06-17 | 2016-11-09 | 中化化肥有限公司临沂农业研发中心 | A kind of light simplification Semen Maydis special efficient fertilizer being applicable to salt-soda soil use and manufacturing process thereof |
| EP3348538A1 (en) * | 2017-01-16 | 2018-07-18 | YARA International ASA | Calcium nitrate and potassium nitrate fertiliser particles |
| CN111620720A (en) * | 2019-12-31 | 2020-09-04 | 曹清清 | Application of glutamic diacetic acid and derivatives thereof as soil and fertilizer synergist |
-
2021
- 2021-06-04 CN CN202110624389.7A patent/CN113277907A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106083492A (en) * | 2016-06-17 | 2016-11-09 | 中化化肥有限公司临沂农业研发中心 | A kind of light simplification Semen Maydis special efficient fertilizer being applicable to salt-soda soil use and manufacturing process thereof |
| EP3348538A1 (en) * | 2017-01-16 | 2018-07-18 | YARA International ASA | Calcium nitrate and potassium nitrate fertiliser particles |
| CN111620720A (en) * | 2019-12-31 | 2020-09-04 | 曹清清 | Application of glutamic diacetic acid and derivatives thereof as soil and fertilizer synergist |
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| 吴玉光等: "《化肥使用指南》", 31 July 2001, 中国农业出版社 * |
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