WO2021240028A1 - Procedimiento de fabricación industrial de fertilizantes granulados - Google Patents
Procedimiento de fabricación industrial de fertilizantes granulados Download PDFInfo
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- WO2021240028A1 WO2021240028A1 PCT/ES2020/070354 ES2020070354W WO2021240028A1 WO 2021240028 A1 WO2021240028 A1 WO 2021240028A1 ES 2020070354 W ES2020070354 W ES 2020070354W WO 2021240028 A1 WO2021240028 A1 WO 2021240028A1
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- granulated
- weight
- industrial manufacture
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- fertilizers according
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- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000007928 solubilization Effects 0.000 description 2
- 238000005063 solubilization Methods 0.000 description 2
- WYMDDFRYORANCC-UHFFFAOYSA-N 2-[[3-[bis(carboxymethyl)amino]-2-hydroxypropyl]-(carboxymethyl)amino]acetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)CN(CC(O)=O)CC(O)=O WYMDDFRYORANCC-UHFFFAOYSA-N 0.000 description 1
- MVXMNHYVCLMLDD-UHFFFAOYSA-N 4-methoxynaphthalene-1-carbaldehyde Chemical compound C1=CC=C2C(OC)=CC=C(C=O)C2=C1 MVXMNHYVCLMLDD-UHFFFAOYSA-N 0.000 description 1
- ODHCTXKNWHHXJC-VKHMYHEASA-N 5-oxo-L-proline Chemical compound OC(=O)[C@@H]1CCC(=O)N1 ODHCTXKNWHHXJC-VKHMYHEASA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- OCUCCJIRFHNWBP-IYEMJOQQSA-L Copper gluconate Chemical class [Cu+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O OCUCCJIRFHNWBP-IYEMJOQQSA-L 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- 241000736262 Microbiota Species 0.000 description 1
- 229920000426 Microplastic Polymers 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- ODHCTXKNWHHXJC-GSVOUGTGSA-N Pyroglutamic acid Natural products OC(=O)[C@H]1CCC(=O)N1 ODHCTXKNWHHXJC-GSVOUGTGSA-N 0.000 description 1
- 239000000589 Siderophore Substances 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- JPHMPWQBESMBJL-UHFFFAOYSA-N [N].[Ca] Chemical compound [N].[Ca] JPHMPWQBESMBJL-UHFFFAOYSA-N 0.000 description 1
- 230000036579 abiotic stress Effects 0.000 description 1
- ODHCTXKNWHHXJC-UHFFFAOYSA-N acide pyroglutamique Natural products OC(=O)C1CCC(=O)N1 ODHCTXKNWHHXJC-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009418 agronomic effect Effects 0.000 description 1
- 239000000783 alginic acid Substances 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229960001126 alginic acid Drugs 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 150000004781 alginic acids Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- CKMXBZGNNVIXHC-UHFFFAOYSA-L ammonium magnesium phosphate hexahydrate Chemical compound [NH4+].O.O.O.O.O.O.[Mg+2].[O-]P([O-])([O-])=O CKMXBZGNNVIXHC-UHFFFAOYSA-L 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 150000001860 citric acid derivatives Chemical class 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- WZISDKTXHMETKG-UHFFFAOYSA-H dimagnesium;dipotassium;trisulfate Chemical compound [Mg+2].[Mg+2].[K+].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O WZISDKTXHMETKG-UHFFFAOYSA-H 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000007908 dry granulation Methods 0.000 description 1
- PZZHMLOHNYWKIK-UHFFFAOYSA-N eddha Chemical compound C=1C=CC=C(O)C=1C(C(=O)O)NCCNC(C(O)=O)C1=CC=CC=C1O PZZHMLOHNYWKIK-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000002509 fulvic acid Substances 0.000 description 1
- 238000000589 high-performance liquid chromatography-mass spectrometry Methods 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010333 potassium nitrate 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
- 238000002360 preparation method Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052567 struvite Inorganic materials 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C11/00—Other nitrogenous fertilisers
-
- 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
- C05G1/00—Mixtures of fertilisers belonging individually to different subclasses of C05
Definitions
- the present invention refers to a process for the industrial manufacture of granulated fertilizers, the process being of the type that essentially includes the stages of granulation, drying, conditioning of the grain temperature and screening, where the granulation is carried out using a homogenized slurry starting material in which both soluble and insoluble components are present.
- the process of the invention thus allows the obtaining of granulated fertilizers adapted to the needs of use, guaranteeing the obtaining of fertilizer granules that include starting materials with the desired components even though these have a very different physical and / or chemical nature.
- Chemical granulation processes are essentially based on a chemical reaction of the desired components intended for the final product, both liquid, solid or gaseous, said reaction causing a state of agglomeration and a controlled growth of particles.
- these desired starting components in solid, liquid or gaseous form are added to a granulator and the wet and plastic material is dried, the agglomerates then consolidate and form a granule. The evaporation of the water allows to reinforce the bonds between the individual particles of each granule.
- the product is screened, cooled and stored (Taylor, L. 1992. Production methods of granulated NPK fertilizers. Proceedings of the Balanced Fertilization Seminar. Palrnaven-INPOFOS. Valencia, Venezuela. October, 1992).
- Steam granulation exclusively uses solid initial components in powder form, which are introduced into a granulator with steam and / or water to provide sufficient liquid phase, heat and plasticity to allow the dry material to settle. agglomerate and form granules. The wet and plastic granules are dried in a dryer and then screened. The reject material is recycled to the granulator. It is generally necessary to cool the material, before or after screening, depending on the type of fertilizer and local conditions (temperature and humidity). Steam granulation does not require chemical reactions for the production of granules, but it has limited application due to its cost and the limited products that can be manufactured.
- the compaction method uses mechanical force to form dense particles (granules) from particulate components into small particles or powders. It is basically a dry granulation, without liquid medium or chemical reaction to "cement" the granules.
- the fine particles are subjected to high enough pressure to bring them together tightly and bring the surfaces close enough for intermolecular and electrostatic forces to hold the granule.
- the initial components must have a very low moisture content, and it is not possible to use components such as urea, superphosphate and ammonium nitrate due to chemical compatibility and hygroscopicity.
- the chemical granulation process as in the case of the present invention, is the most advantageous, being easily adaptable to the physical state of the starting components and industrially scalable.
- document ES2379135T3 describes a process for the preparation of a granulated industrial nitrogen-calcium fertilizer by decomposition of mineral salts of calcium cations with nitric acid and processing of the melt obtained where, from the resulting reaction mixture From the decomposition of mineral salts of calcium cations with nitric acid, the solution is thickened by means of a thickener and the superheated solution (from 100 to 170 ° C) is injected into a granulator, a powdered binder is added, granulated and adjusted the temperature of the granulate, the granulated material is sieved, the fraction Appropriate granular fertilizer is separated, the larger size fraction is ground and, together with the smaller size fraction, cooled and returned to the granulator.
- the present invention solves these disadvantages of the known processes, providing a process for the industrial manufacture of granulated fertilizers, the process being of the type that includes stages of granulation, drying, conditioning of the grain temperature and screening, where the material of The starting material used consists of soluble and insoluble components in water and where the process includes, before the granulation stage, a stage of obtaining the starting material in the form of a homogenized mixture as a thick aqueous suspension, also known in the art as "slurry ”, Selecting the soluble and insoluble components that make up the starting material from among sugars, amino acids, organic acids, polyamines, alcohols, nucleotides, boric acid, leonardite, algae extracts and combinations thereof, and a pre-mixing stage of this starting material with other raw materials selected from among produ high nitrogen content, high phosphorus products, high potassium products, high sulfur products, high calcium products, organic materials, micronutrients and combinations thereof.
- the step of obtaining the starting material with the mentioned soluble and insoluble components in the form of a homogenized mixture as a thick aqueous suspension is carried out in an in-line disperser.
- the use of this particular technology allows these raw materials that are not soluble and those that are not to form a homogenized mixture, as well as to achieve a mixture with the optimal particle size for subsequent milling processes, such size being adapted to be ideal for passing through the mesh in subsequent screening stages.
- the stage of premixing this starting material with the other raw materials mentioned above is carried out in a paddle mixer.
- the advantage of using the paddle mixer in the process of the invention is based on the fact that this equipment is capable of mixing a large quantity of solid material with already dispersed liquid material.
- Other possibilities of use of mixers entail disadvantages for the present invention, since they usually use water as the vehicle medium, which implies both lengthening the process time and an extra cost due to the need to remove more water from the granulated products.
- the sugars that make up the starting material can be selected from the group consisting of sucrose, trehalose, fructose, glucose, arabinose, maltose, and any combination thereof.
- sugars are preferably present in the granulated fertilizer obtained according to the process of the invention in a proportion of 0.1 to 15% by weight.
- the amino acids that make up the starting material can be selected from the group consisting of threonine, usine, phenylalanine, glutamic acid, methionine, y-aminobutyric acid, ornithine, glycine, glutamine, aspartic acid, serine, asparagine, tyrosine, tryptophan, valine, leucine, isoleucine, proline, 4-hydroxyproline, arginine, histidine, alanine, cysteine, and any combination thereof.
- amino acids are preferably present in the granular fertilizer obtained according to the process of the invention in a proportion of 0.01 to 30% by weight.
- the organic acids that make up the starting material can be selected from the group consisting of succinic acid, oxalic acid, gluconic acid, threonic acid, fumaric acid, and any combination thereof.
- organic acids are preferably present in the granulated fertilizer obtained according to the process of the invention in a proportion of 0.01 to 10% by weight.
- the polyamines that make up the starting material can be selected from the group consisting of putrescine, spermidine, spermine and any combination of the themselves.
- polyamines are preferably present in the granular fertilizer obtained according to the process of the invention in a proportion of 0.01 to 10% by weight.
- the alcohols that make up the starting material can be selected from the group consisting of glycerol and its derivatives, such as glycerin.
- These alcohols are preferably present in the granulated fertilizer obtained according to the process of the invention in a proportion of 0.01 to 25% by weight.
- the nucleotides that make up the starting material can be selected from the group consisting of adenine, guanine, cytosine, thymine, and any combination thereof.
- nucleotides are preferably present in the granular fertilizer obtained according to the process of the invention in a proportion of 0.01 to 5% by weight.
- the leonardite present in the starting material can be any leonardite of any origin and rich in humic and fulvic acids.
- This leonardite is preferably present in the granulated fertilizer obtained according to the process of the invention in a proportion of 1 to 40% by weight.
- Example of algae extracts present in the starting material can be selected from any algae extract with a high content of sorbitol, alginic acid and / or mannitol. These algae extracts are present in a proportion of 0.01 to 15% by weight in the final fertilizer product obtained according to the process of the invention.
- urea ammonium sulfate, potassium nitrate, ammonium nitrosulfate, ammonium nitrate, calcium nitrate and the like can be mentioned.
- These products with a high nitrogen content are preferably present in the granulated fertilizer obtained according to the process of the invention in a proportion of 1 to 75% by weight.
- high phosphorous products mention may be made of rock phosphate, triple superphosphate, superphosphate, phosphoric acid, struvite and the like.
- These products with a high phosphorus content are preferably present in the granulated fertilizer obtained according to the process of the invention in a proportion of 1 to 75% by weight.
- high potassium content products feldspar, potassium chloride, potassium sulfate, double potassium magnesium sulfate, potassium hydroxide and the like can be cited. These products with a high potassium content are preferably present in the granulated fertilizer obtained according to the process of the invention in a proportion of 1 to 75% by weight.
- Examples of products with a high sulfur content include elemental sulfur. These products with a high sulfur content are preferably present in the granulated fertilizer obtained according to the process of the invention in a proportion of 1 to 70% by weight.
- high calcium content products calcium chloride, calcium cyanamide, calcium sulfate, dolomite, limestone, calcium oxide, calcium hydroxide and the like can be mentioned. These products with a high calcium content are preferably present in the granulated fertilizer obtained according to the process of the invention in a proportion of 1 to 45% by weight.
- organic materials there may be mentioned manures derived from cattle, for example cattle, sheep, pigs, rabbits, hens and the like. These organic materials are preferably present in the granulated fertilizer obtained according to the process of the invention in a proportion of 1 to 40% by weight.
- micronutrients include iron, zinc, manganese, copper, molybdenum, cobalt, which can be in the form of salts such as sulfates or chlorides, or combined with complexing agents, such as in the form of humates, citrates, gluconates, heptagluconates, aminoates. and the like, or combined with chelating agents, such as EDTA, EDDHA, DPTA, and the like.
- These micronutrients are preferably present in the granular fertilizer obtained according to the process of the invention in a proportion of 1 to 30% by weight.
- the process for the industrial manufacture of granulated fertilizers according to the invention includes the granulation of the premix obtained from the steps described above together with an aqueous extract of useful microorganisms to promote activation. of the soil microbiota and thus provide, depending on its nature, a higher nitrogen fixation, an improvement in the solubilization of potassium or a mobilization of the different micronutrients of the soil.
- This aqueous extract in addition to providing the agronomic advantages due to the extract itself, greatly facilitates the formation of granules thanks to the water in which such microorganisms are embedded.
- the microorganisms used and added in the granulation stage are selected from among Pichia guilliermondii, Azotobacter chroococcum, Bacillus amyloliquefaciens, Bacillus simplex, Azoospirillum lipoferum, Pantoea alii, Rhizobium radiobacter, Paenibacilus polymyxa and combinations thereof.
- the advantage of selecting these specific microorganisms is due to the fact that it is described in the literature that they are capable of improving nitrogen fixation, facilitating the solubilization of phosphorus and potassium, releasing siderophores or protecting crops against abiotic stress.
- the soluble and insoluble components mentioned are used in a weight ratio of 0.5 to 10 % with respect to the weight of the product to be granulated in the granulation stage.
- the other indicated raw materials are in a proportion between 5 and 90% by weight with respect to the weight of the product to be granulated in the granulation stage.
- the amount of extracts of microorganisms added in the granulation stage ranges between 5 and 90% by weight with respect to the weight of the product to be granulated.
- the process begins with a combination of the soluble and insoluble components in water to obtain a starting material in the form of a homogenized mixture as a thick aqueous suspension or "slurry", which is carried out in an in-line disperser. This mixture is added to a paddle mixer together with the different raw materials, where a premix of the raw materials is carried out together with the slurry to later enter the granulation process.
- the aqueous extract of the different types of microorganisms is added.
- the granulation which can be carried out with any suitable technology, and once the granules are generally formed with a relative humidity of between 5% -10%, they are subjected to a drying stage, for example in a dryer. rotary, to obtain dry granules with a humidity lower than 3%.
- the entire mass of granules is introduced into a conditioner to gradually reduce the temperature and thus avoid rapid cooling.
- the product is screened according to the selected size, the granules with the appropriate size are taken for storage and those that are outside the size range are taken to a mill, where all the mass is ground to be reintroduced into the granulator.
- this mixture is made, it is added in a continuous proportion of 0.1%, to have 1% in the final fertilizer mixture, to the paddle mixer together with the following raw materials, with a particle size between 300 pm and 1,200 pm, which implies that previously these raw materials have been ground.
- the output humidity of this second mixture ranges between 9% and 15%, since the raw materials also provide some humidity.
- the product obtained is introduced into the granulator, where the extracts of the different microorganisms are added at 10% by weight, the percentage of the extracts of microorganisms varies depending on their concentration, for example between 4% and 18%, so that the final concentration on the fertilizer sample ranges between 0.2% and 2% by weight.
- the shaping of the granules is carried out and the humidity is regulated with the addition of water if necessary to shape the granule.
- the granulated product already formed leaves the granulator with a humidity between 6% and 10%.
- the granules are introduced into the dryer at a temperature between 330 ° C and 380 ° C at the head of the process and with an outlet temperature between 80 ° C and 95 ° C.
- the output humidity of the dryer of the product obtained ranges between 2% and 4%.
- the product will go through a temperature conditioner for a gradual decrease in temperature from 80 ° C-95 ° C to room temperature, for example by applying a stream of dry air, thus preventing the granule from cooling by absorbing moisture .
- the granules will be screened to obtain a product with an average particle size between 2.5 mm and 5 mm. Granules that are not in this size range will be fed into a mill to feed back to the granulator.
- a fertilizer product is obtained using a conventional granulator and the results are compared with the same product obtained according to the process of the invention.
- a representative sample is taken in triplicate, taking for each replica (R1, R2, R3) 1 kg of sample, from a batch of 100 kg.
- the parameters analyzed are derived from the premix and the addition to the paddle mixer, in particular by measuring the richness of some selected components, the measurement being extrapolated to the rest of the components of the final fertilizer obtained with each of the processes (measurements obtained by ultra high performance liquid chromatography-mass spectrometry).
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PE2022002761A PE20230615A1 (es) | 2020-05-28 | 2020-05-28 | Procedimiento de fabricacion industrial de fertilizantes granulados |
AU2020450049A AU2020450049A1 (en) | 2020-05-28 | 2020-05-28 | Method for the industrial manufacture of granulated fertilisers |
PCT/ES2020/070354 WO2021240028A1 (es) | 2020-05-28 | 2020-05-28 | Procedimiento de fabricación industrial de fertilizantes granulados |
CN202080101387.3A CN115697945A (zh) | 2020-05-28 | 2020-05-28 | 工业生产颗粒肥料的方法 |
US17/927,915 US20230219864A1 (en) | 2020-05-28 | 2020-05-28 | Method for the industrial manufacture of granulated fertilizers |
BR112022024013A BR112022024013A2 (pt) | 2020-05-28 | 2020-05-28 | Procedimento para a fabricação industrial de fertilizantes granulados |
CR20220671A CR20220671A (es) | 2020-05-28 | 2020-05-28 | Procedimiento de fabricación industrial de fertilizantes granulados |
MX2022014927A MX2022014927A (es) | 2020-05-28 | 2020-05-28 | Procedimiento de fabricacion industrial de fertilizantes granulados. |
EP20937525.2A EP4159705A4 (en) | 2020-05-28 | 2020-05-28 | METHOD FOR THE INDUSTRIAL PRODUCTION OF GRANULATED FERTILIZERS |
Applications Claiming Priority (1)
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PCT/ES2020/070354 WO2021240028A1 (es) | 2020-05-28 | 2020-05-28 | Procedimiento de fabricación industrial de fertilizantes granulados |
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WO2021240028A1 true WO2021240028A1 (es) | 2021-12-02 |
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PCT/ES2020/070354 WO2021240028A1 (es) | 2020-05-28 | 2020-05-28 | Procedimiento de fabricación industrial de fertilizantes granulados |
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US (1) | US20230219864A1 (es) |
EP (1) | EP4159705A4 (es) |
CN (1) | CN115697945A (es) |
AU (1) | AU2020450049A1 (es) |
BR (1) | BR112022024013A2 (es) |
CR (1) | CR20220671A (es) |
MX (1) | MX2022014927A (es) |
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- 2020-05-28 CR CR20220671A patent/CR20220671A/es unknown
- 2020-05-28 US US17/927,915 patent/US20230219864A1/en active Pending
- 2020-05-28 EP EP20937525.2A patent/EP4159705A4/en active Pending
- 2020-05-28 BR BR112022024013A patent/BR112022024013A2/pt unknown
- 2020-05-28 MX MX2022014927A patent/MX2022014927A/es unknown
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Publication number | Publication date |
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BR112022024013A2 (pt) | 2022-12-20 |
CN115697945A (zh) | 2023-02-03 |
EP4159705A4 (en) | 2024-02-28 |
EP4159705A1 (en) | 2023-04-05 |
PE20230615A1 (es) | 2023-04-14 |
MX2022014927A (es) | 2023-01-18 |
AU2020450049A1 (en) | 2023-01-19 |
US20230219864A1 (en) | 2023-07-13 |
CR20220671A (es) | 2023-03-28 |
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