CN1074206A - Coated slow release fertilizer and method for making thereof - Google Patents
Coated slow release fertilizer and method for making thereof Download PDFInfo
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- CN1074206A CN1074206A CN93100227A CN93100227A CN1074206A CN 1074206 A CN1074206 A CN 1074206A CN 93100227 A CN93100227 A CN 93100227A CN 93100227 A CN93100227 A CN 93100227A CN 1074206 A CN1074206 A CN 1074206A
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- Prior art keywords
- slow release
- coating
- coated slow
- release fertilizer
- fertilizer
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims description 8
- 238000000576 coating method Methods 0.000 claims abstract description 31
- 239000011248 coating agent Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000000126 substance Substances 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 19
- 238000011049 filling Methods 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 239000000243 solution Substances 0.000 claims description 17
- 235000013339 cereals Nutrition 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 8
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- 239000010815 organic waste Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 6
- 241001465754 Metazoa Species 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 239000004793 Polystyrene Substances 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 4
- 239000004202 carbamide Substances 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 235000019698 starch Nutrition 0.000 claims description 4
- 239000008107 starch Substances 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 241000196324 Embryophyta Species 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims description 3
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- 239000004021 humic acid Substances 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 3
- 239000003077 lignite Substances 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 229920003169 water-soluble polymer Polymers 0.000 claims description 3
- 235000017060 Arachis glabrata Nutrition 0.000 claims description 2
- 235000010777 Arachis hypogaea Nutrition 0.000 claims description 2
- 244000105624 Arachis hypogaea Species 0.000 claims description 2
- 235000018262 Arachis monticola Nutrition 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims description 2
- 235000019733 Fish meal Nutrition 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 2
- 239000013543 active substance Substances 0.000 claims description 2
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical group OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims description 2
- 208000022531 anorexia Diseases 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000008280 blood Substances 0.000 claims description 2
- 210000004369 blood Anatomy 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 claims description 2
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims description 2
- 206010061428 decreased appetite Diseases 0.000 claims description 2
- 210000003608 fece Anatomy 0.000 claims description 2
- 239000004467 fishmeal Substances 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 claims description 2
- 210000004209 hair Anatomy 0.000 claims description 2
- 210000000003 hoof Anatomy 0.000 claims description 2
- 235000012204 lemonade/lime carbonate Nutrition 0.000 claims description 2
- 239000010871 livestock manure Substances 0.000 claims description 2
- 235000013372 meat Nutrition 0.000 claims description 2
- 235000020232 peanut Nutrition 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 210000003491 skin Anatomy 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000010902 straw Substances 0.000 claims description 2
- 239000010455 vermiculite Substances 0.000 claims description 2
- 229910052902 vermiculite Inorganic materials 0.000 claims description 2
- 235000019354 vermiculite Nutrition 0.000 claims description 2
- 210000001835 viscera Anatomy 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims 1
- 238000009313 farming Methods 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 235000015097 nutrients Nutrition 0.000 description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 239000012153 distilled water Substances 0.000 description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 230000008635 plant growth Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- KFUSEUYYWQURPO-UHFFFAOYSA-N 1,2-dichloroethene Chemical compound ClC=CCl KFUSEUYYWQURPO-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-NJFSPNSNSA-N calcium-42 Chemical compound [42Ca] OYPRJOBELJOOCE-NJFSPNSNSA-N 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000005648 plant growth regulator Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000008096 xylene Substances 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
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to a kind of coated slow release fertilizer and preparation method thereof.In the filling blend thing of coating, contain and have the inorganic of adsorptivity or organic substance powder, and be adsorbed with water-soluble substances therein.Because the adsorptivity of filling blend thing makes superpolymer combine the crack of closely not boxing out with weighting material, after fertilizer is used, water-soluble substances dissolving in the coating, cause uniform release aperture on the coating, after fertilizer had discharged, coating can be broken into the powder below 200 orders when farming.Have stronger anti-damage ability before the present invention uses, and can open release aperture equably when using, release rate is regulated accurately flexibly, is particularly suitable for the paddy field and uses.
Description
The present invention relates to contain in a kind of coating the superpolymer coated slow release fertilizer and the method for making thereof of filling blend thing.
Granulated fertilizer with pure polymer film cladding can delay the dissolution rate of fertilizer nutrient, and has anti-preferably damage capability.But it discharges nutrient speed and difficult cooperation of the time of the required nutrient of plant-growth, as release rate equilibrium etc. inadequately.In addition, its coated fertilizer remnant decomposition course is slow, and plant growth is had certain disadvantageous effect.
English Patent (GB2011367A) discloses a kind of coated particle fertilizer and production method thereof, it is to coat the film of being made up of polyolefine, ethylene-vinyl acetate copolymer or inferior vinyl resins on the granulated fertilizer surface, and is filled with the fine dust of inorganic matter between 0.01 μ to 40 μ in the coating.Fine powder and resin can not closely stick together mutually, have formed hole.Like this, the quantity that the control fine powder adds can be made the coating perforate artificially, thereby regulates the release rate of fertilizer nutrient, but this adjusting is more coarse, and it makes coating intensity that obvious downward trend be arranged.This fertilizer is made in fluidized-bed, and it requires resin to have certain special property, and promptly its solution forms solution when heating.And when cooling forms gel.This requirement has limited the kind of usable resins.Such as, polystyrene resin does not just possess above-mentioned character, thereby can not adopt.
The objective of the invention is to seek a kind of filled-type coated slow release fertilizer and method for making thereof, the adding of its weighting material does not reduce coating intensity, and after using, can more accurately open the nutrient release aperture on the coating.After fertile core discharged, coating became powder in farming.Aspect manufacturing cost, seek a kind of ratio of performance to price than higher scheme.
Main points of the present invention are: prepare a kind of coated slow release fertilizer, forms by composite fertilizer's fuse and the superpolymer coating that contains the filling blend thing, it is characterized in that containing in the filling blend thing of coating and have the inorganic of adsorptivity or organic substance powder and be adsorbed with the water-soluble material of energy therein.
Because the adsorptivity of weighting material makes superpolymer can more closely combine with weighting material, the crack of not boxing out has guaranteed coating intensity.This adsorbability material is in advance in the certain density aqueous solution simultaneously, adsorb a certain amount of water-soluble substances according to the adsorption equilibrium principle, after fertilizer is used, because the effect of moisture content, the water-soluble substances desorption on adsorbent top layer dissolving in the coating, thereby form the more stable hole of size in coating, nutrient is balanced to be discharged thereby can make.As seen, this perforate principle, the regulatory function of coating can realize by the adsorption equilibrium curve controlled by the kind of selection adsorbability material and these three factors of concentration of loading level and obtain solution.Usually, the adsorptivity of adsorbability material is strong more, adding (filling) amount is many more, strength of solution is high more, and fertilizer nutrient release rate is just fast more after its film forming.Otherwise it is then slow more.
The composition of coating (parts by weight) comprising: 100 parts of superpolymer; Filling blend thing 5-600 part, wherein (1) to contain the inorganic or organic substance weight percent of the adsorptivity of water-soluble substances be 10-100%; (2) other weighting material weight percents are 0-90%.
Coating is formed (parts by weight) preferably: 100 parts of superpolymer; Filling blend thing 100-200 part, wherein (1) to contain the inorganic or organic substance weight percent of the adsorptivity of water-soluble substances be 70-100%; (2) other weighting material weight percents are 0-30%.
In the inorganic or organic substance of above-mentioned adsorptivity, the content of water-soluble substances is the content of adsorbability material when reaching adsorption equilibrium in water soluble substance solution.
The used superpolymer of the present invention is polystyrene, polyethylene, polypropylene, polyvinyl chloride.These superpolymer can use the industrial chemicals of " newly ", also can use the identical waste product of its main component.
Inorganic or the organic substance of the adsorptivity that the present invention selects for use is powders such as wilkinite, vermiculite power, carbon mud (industrial activited carbon waste residue), weathered coal, brown coal, humic acids.Since bentonitic high adsorption capacity, good dispersity, and huge at the occurring in nature reserves, so it is a kind of optimal adsorbability material.
Selected processing adsorptivity its solute of solution inorganic or organic substance of the present invention is that water-soluble substances has following a few class:
(1) inorganic salt are as MgSO
4, Na
2SO
4, KCl, NaNO
3Deng.
(2) organism is as urea and aminated compounds etc.;
(3) water soluble polymer is as urea-formaldehyde resin, polyvinyl alcohol, hydrolyzed starch etc.
Another characteristics of the present invention are, have also added other weighting materials in the coating, to improve surface strength and fragility, can make coating be easy to pulverize after can fertilizer discharges in film.The substance classes that can add is a lot, but from utilizing solid waste, the angle that further reduces cost is set out, and other weighting materials that the present invention selects have following a few class:
(1) comminuted plants organic waste materials as leaf, straw, cotton seed hull, grain of rice skin, peanut skin, offal skin etc., also can be used wood powder, starch;
(2) the animal organic waste materials of Fen Suiing as the waste tankage (comprising skin, hair, hoof, blood) in various animal bones, slaughterhouse, meat and the internal organ that anorexia is used, also can be used fish meal;
(3) powder of mineral materials is as wilkinite, weathered coal, fused(calcium magnesium)phosphate, flyash, lime carbonate etc.
The used compound manure fuse of the present invention is based on nitrogen, phosphorus, potash fertilizer, mixes some trace elements, humic acids, brown coal, agricultural chemicals, plant-growth regulator etc. and makes through granulation.Between the thickness of coating, perforate density, film and the fuse and part by weight and fuse size, can regulate according to the kind of crop and the needs of different growing stage.
Main implementation step of the present invention is as follows:
(1) earlier with the superpolymer oven dry, be dissolved in and make macromolecular solution in the coordinative solvent, its concentration is that the weight percent of superpolymer is 1-60%;
(2) the organic or inorganic material powder that has adsorptivity in the filling blend thing that adds is carried out following processing: earlier with its oven dry, pour into then in the solution that contains water-soluble substances and soak, and fully stir, grind, treat its adsorption equilibrium after, leach dry for standby;
(3) in the macromolecular solution that (1) obtains, add treated organic or inorganic thing powder, add toughner, tensio-active agent, colorant and other filling blend things again by aforementioned ratio, with sand mill or colloidal mill with it levigate and mixing, make spray coating liquor;
(4) in rotary drum, above-mentioned spray coating liquor is sprayed on the compound fertilizer granule surface.Treat solvent be heated the volatilization after promptly make coated slow release fertilizer.
Slow release fertilizer release rate as method for preparing is too fast, it can also be increased to be coated with other component coatings that one or more layers accounts for the heavy 0.1-10% of fertilizer core.
Effect of the present invention:
Because the adsorptivity filling blend thing that contains in the coating of this coated slow release fertilizer can more closely combine with superpolymer, so anti-damage ability is strong before using, the intensity height.And after using, because the dissolving of water-soluble substances in the coating, perforate equably on the coating, nutrient is discharged evenly, and release rate is regulated better, accurately flexibly, particularly fertilizer has discharged in the film, water-filling in the film chamber, the fragility of putamina make it very easily pulverize in farming again, resolve into the following fine powder of 200 orders.
The present invention selects the rotary drum working method for use, can make fertilizer outward appearance slyness, no corner angle, coating densification hard, further improves anti-damage ability.
This slow release fertilizer is used for waterborne kind of rice test, and per mu yield is increased, and the utilization ratio of dedicated fertilizer improves 10-15 percentage point, has the saving of labor and reduces the advantage of polluting.
Actual effect of the present invention can further obtain proof by embodiment and testing and analysis data thereof.
Embodiment 1:
One, raw material
1, be prepared into the particulate state that varies in size by weight 1.94: 2.12: 0.95 with urea, general calcium, Repone K, its weight at 0.18 gram/grain between the 1.5 gram/grains.
2, spray coating liquor preparation:
Getting waste old polystyrene foamed plastic and benzene mixed (mixture that comprises benzene,toluene,xylene) is 14: 100 preparation macromolecule polysterol solution at normal temperatures by weight.Get quantitative wilkinite and be 0.2% MgSO with the concentration of 5 times of weight
4Solution soaking 24 hours also is interrupted and is stirred, and leaches oven dry then.Per 5 milliliters of polystyrene solutions add the treated wilkinite of 1 gram, grind mixing and can make spray coating liquor.
Two, production method:
Add an amount of compound fertilizer granule in rotary drum, making the rotary drum rotating speed is 40 rev/mins, slowly adds spray coating liquor, adds talcum powder simultaneously.Treat after the solvent evaporates.
Make 5 kinds of samples, see Table 1.
Three, discharge P
2O
5Mensuration:
1, method: get coat fertilizer grain 10 and restrain the container of packing into, add 200 milliliters of distilled water.During mensuration complete soln is poured out, measured its P
2O
5Content.Use the distilled water flushing particle, add 200 ml distilled waters again.And the like.At last particle is pulverized, measured residue P
2O
5Content.
2, test result sees Table 2.
Made slow release fertilizer contains P
2O
5%(is water-soluble) average out to 3.90%, an average day burst size accounts for total amount 2.84%.P
2O
5Discharge 80% and on average need 28 days.The nutrient release rate relatively slowly, evenly.
Four, temperature is to the influence of nutrient dissolution rate:
1,3 kinds of different coated slow release fertilizers of thickness is respectively got 10 grams, be soaked in respectively in the container that fills 200 ml distilled waters, then in the dislocation baking oven.25 ℃ of following constant temperature 24 hours, measure the P that it discharges
2O
5Amount.
In addition above-mentioned 3 kinds of fertilizer are respectively got 10 grams, be soaked in respectively in the container that fills 200 ml distilled waters, placed 24 hours down in room temperature (average 14 ℃) then, measure the P that it discharges
2O
5Amount.
2, test result sees Table 3.
As can be seen from Table 3, temperature raises, and dissolution rate is accelerated.10 ℃ of the every risings of temperature, release rate approximately increase by 2 times (1.85 times of average out to).
Embodiment 2:
Get the waste vinylene chloride plastic goods, tetrahydrofuran (THF) is a solvent, be made into weight percent and be 6% solution, by weight wilkinite: polyvinyl chloride solution is to mix at 1: 3, in rotary drum, be sprayed on the fertile core, it is 10 millimeters that this fertilizer core contains urea 39%, general calcium 42%, Repone K 19%, diameter, promptly makes slow release fertilizer.Used wilkinite is 0.1% (NH with the mass percent of 5 times of weight
4)
2SO
4The solution soaking oven dry makes.
Table 1
| Sample number | Core grain kind | Core grain heavy (gram) | Spraying liquid measure (ml) | Add talcum powder (gram) | Core-skin than (%, wt) |
| 1 2 3 4 5 | The big grain of the big grain of grain granule in the big grain | 500 500 500 500 500 | 175 200 150 175 160 | 30 55 40 43 65 | 12 16 10 14 19 |
Table 2 controlled availability fertilizer discharges P
2O
5The mensuration of %
Table 3
| Sample number | 14℃ | 25℃ | Multiple |
| 1 2 3 | 0.103% 0.169% 0.356% | 0.201% 0.239% 0.779% | 1.95 1.41 2.19 |
Claims (9)
1, a kind of coated slow release fertilizer, form by compound manure fuse and the superpolymer coating that contains the filling blend thing, it is characterized in that containing in the filling blend thing of coating and have the inorganic of adsorptivity or organic substance powder, wherein be adsorbed with water-soluble substances, coating is formed (parts by weight) and being comprised: 100 parts of superpolymer; Filling blend thing 5-600 part, wherein (1) has the inorganic of adsorptivity or the organic substance weight percent is 10-100%; (2) other weighting material weight percents are 0-90%.
2,, it is characterized in that coating forms (parts by weight) preferably and be: 100 parts of superpolymer according to the coated slow release fertilizer of claim 1; Filling blend thing 100-200 part, wherein (1) has the inorganic of adsorptivity or the organic substance weight percent is 70-100%; (2) other weighting material weight percents are 0-30%.
3,, it is characterized in that described superpolymer is polystyrene or polyethylene, polypropylene or polyvinyl chloride according to the coated slow release fertilizer of claim 1 or 2.
4,, it is characterized in that describedly having the inorganic of adsorptivity or the organic substance powder is the powder of wilkinite, vermiculite power, industrial activited carbon waste residue, weathered coal, brown coal, humic acids according to the coated slow release fertilizer of claim 1 or 2.
5,, it is characterized in that described other weighting materials are according to a kind of coated slow release fertilizer of claim 1 or 2:
(1) comminuted plants organic waste materials;
(2) the animal organic waste materials of Fen Suiing;
(3) mineral materials powder.
6,, it is characterized in that described according to the coated slow release fertilizer of claim 5:
(1) the plant organic waste materials is leaf, straw, cotton seed hull, grain of rice skin, peanut skin, offal skin, also can be wood powder, starch;
(2) the animal organic waste materials is meat and the internal organ that the bone of various animals, the discarded tankage in slaughterhouse (comprising skin, hair, hoof, blood), anorexia are used, and also can be fish meal;
(3) mineral materials is fused(calcium magnesium)phosphate, flyash, lime carbonate.
7,, it is characterized in that described water-soluble substances is according to the coated slow release fertilizer of claim 1 or 2:
(1) inorganic salt;
(2) organic salt;
(3) water soluble polymer.
8, according to the coated slow release fertilizer of claim 7, it is characterized in that:
(1) described inorganic salt are MgSO
4, or Na
2SO
4, or KCl, NaNO
3;
(2) described organism is urea or aminated compounds;
(3) described water soluble polymer is urea-formaldehyde resin or polyvinyl alcohol or hydrolyzed starch.
9, the manufacture method of claim 1 or 2 described coated slow release fertilizers,
It is characterized in that:
(1) earlier with the superpolymer oven dry, be dissolved in and make macromolecular solution in the coordinative solvent, its concentration is that the weight percent of superpolymer is 1-60%;
(2) the organic or inorganic thing powder that has adsorptivity in the filling blend thing that adds is carried out following processing: earlier with its oven dry, pour into then in the aqueous solution of water-soluble substances and soak, and fully stir, grind, treat to leach oven dry after its adsorption equilibrium;
(3) in above-mentioned macromolecular solution, add treated adsorbability material powder in proportion, add toughner, tensio-active agent, colorant and other filling blend things again, with sand mill or colloidal mill with it levigate and mixing, make spray coating liquor;
(4) in rotary drum, this spray coating liquor is sprayed on the compound fertilizer granule wicking surface, treat solvent be heated the volatilization after promptly make coated slow release fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93100227A CN1034657C (en) | 1993-01-14 | 1993-01-14 | Slowly-releasing coated fertilizer and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93100227A CN1034657C (en) | 1993-01-14 | 1993-01-14 | Slowly-releasing coated fertilizer and production thereof |
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| Publication Number | Publication Date |
|---|---|
| CN1074206A true CN1074206A (en) | 1993-07-14 |
| CN1034657C CN1034657C (en) | 1997-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN93100227A Expired - Fee Related CN1034657C (en) | 1993-01-14 | 1993-01-14 | Slowly-releasing coated fertilizer and production thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040097C (en) * | 1996-06-06 | 1998-10-07 | 广州氮肥厂 | Coated fertilizer and its coating method and equipment for manufacturing said coated fertilizer |
| CN1098831C (en) * | 1999-09-30 | 2003-01-15 | 吉林大学 | Durable ammonium-type chemical fertilizer and its preparing process |
| WO2007025462A1 (en) * | 2005-09-01 | 2007-03-08 | Nanjing University Of Science And Technology | A slow-release fertilizer coated with degradable polymer |
| CN1309688C (en) * | 2005-04-20 | 2007-04-11 | 西安阿诺肯科技发展有限公司 | Controlled release combination of coating film for fertilizer and preparation method thereof |
| CN103193549A (en) * | 2013-05-05 | 2013-07-10 | 付增传 | Degradable resin envelop slow-control fertilizer-releasing production process |
| CN103880558A (en) * | 2014-04-08 | 2014-06-25 | 山东省农业科学院农业资源与环境研究所 | Salt-resistant soil-improving slow release fertilizer and preparation method thereof |
| CN104058888A (en) * | 2014-05-28 | 2014-09-24 | 马鞍山市心洲葡萄专业合作社 | Special compound coated fertilizer for tree base fertilization and preparation method thereof |
| CN104860747A (en) * | 2015-04-10 | 2015-08-26 | 宁夏宝塔石化科技实业发展有限公司 | Method for preparing sustained-release composite fertilizer with dust waste in active-carbon-activated tail gas |
| CN105461416A (en) * | 2014-08-26 | 2016-04-06 | 青岛鑫润土苗木专业合作社 | Fermented water retention type sustained-release preparation and preparation method |
| CN105859414A (en) * | 2016-04-13 | 2016-08-17 | 吴申龙 | Modified coated long-acting slow release composite fertilizer and preparation method thereof |
| CN106396875A (en) * | 2016-08-29 | 2017-02-15 | 贵阳开磷化肥有限公司 | Controlled release fertilizer used for orchid plantation, and preparation method thereof |
| CN107056498A (en) * | 2017-06-03 | 2017-08-18 | 台州市柏棵生物科技有限公司 | A kind of container for plants of release and release control fertilizer and preparation method thereof |
| CN107473804A (en) * | 2016-06-08 | 2017-12-15 | 深圳市芭田生态工程股份有限公司 | Modified urine base manure and preparation method thereof and mixed fertilizer |
| CN109748759A (en) * | 2019-02-11 | 2019-05-14 | 权冉(银川)科技有限公司 | Material for water treatment and soil sanitation repair getting fat material and its system and method |
| CN110078576A (en) * | 2019-06-18 | 2019-08-02 | 牟钰德 | Butcher the method with breeding waste sewage and dead livestock and poultry straw biogas residue biogas slurry production improvement salt-soda soil mushy stage biological organic fertilizer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005280971A1 (en) | 2004-09-08 | 2006-03-16 | Takasago International Corporation | Concentrated coffee extract and process for producing the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS543104B2 (en) * | 1973-12-28 | 1979-02-17 | ||
| NZ220762A (en) * | 1986-07-07 | 1989-05-29 | Chisso Corp | Coated fertiliser with polyolefinic coating |
| NZ221198A (en) * | 1986-08-05 | 1990-09-26 | Chisso Corp | Granular fertiliser with poly-3-hydrox-3-alkylpropionic acid coating |
| JPH01215783A (en) * | 1988-02-23 | 1989-08-29 | Chisso Corp | Coated granular fertilizer |
-
1993
- 1993-01-14 CN CN93100227A patent/CN1034657C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040097C (en) * | 1996-06-06 | 1998-10-07 | 广州氮肥厂 | Coated fertilizer and its coating method and equipment for manufacturing said coated fertilizer |
| CN1098831C (en) * | 1999-09-30 | 2003-01-15 | 吉林大学 | Durable ammonium-type chemical fertilizer and its preparing process |
| CN1309688C (en) * | 2005-04-20 | 2007-04-11 | 西安阿诺肯科技发展有限公司 | Controlled release combination of coating film for fertilizer and preparation method thereof |
| WO2007025462A1 (en) * | 2005-09-01 | 2007-03-08 | Nanjing University Of Science And Technology | A slow-release fertilizer coated with degradable polymer |
| CN103193549A (en) * | 2013-05-05 | 2013-07-10 | 付增传 | Degradable resin envelop slow-control fertilizer-releasing production process |
| CN103880558A (en) * | 2014-04-08 | 2014-06-25 | 山东省农业科学院农业资源与环境研究所 | Salt-resistant soil-improving slow release fertilizer and preparation method thereof |
| CN104058888A (en) * | 2014-05-28 | 2014-09-24 | 马鞍山市心洲葡萄专业合作社 | Special compound coated fertilizer for tree base fertilization and preparation method thereof |
| CN105461416A (en) * | 2014-08-26 | 2016-04-06 | 青岛鑫润土苗木专业合作社 | Fermented water retention type sustained-release preparation and preparation method |
| CN104860747A (en) * | 2015-04-10 | 2015-08-26 | 宁夏宝塔石化科技实业发展有限公司 | Method for preparing sustained-release composite fertilizer with dust waste in active-carbon-activated tail gas |
| CN105859414A (en) * | 2016-04-13 | 2016-08-17 | 吴申龙 | Modified coated long-acting slow release composite fertilizer and preparation method thereof |
| CN107473804A (en) * | 2016-06-08 | 2017-12-15 | 深圳市芭田生态工程股份有限公司 | Modified urine base manure and preparation method thereof and mixed fertilizer |
| CN106396875A (en) * | 2016-08-29 | 2017-02-15 | 贵阳开磷化肥有限公司 | Controlled release fertilizer used for orchid plantation, and preparation method thereof |
| CN106396875B (en) * | 2016-08-29 | 2019-12-03 | 贵阳开磷化肥有限公司 | A kind of Orchis planting Controlled Release Fertilizer preparation method |
| CN107056498A (en) * | 2017-06-03 | 2017-08-18 | 台州市柏棵生物科技有限公司 | A kind of container for plants of release and release control fertilizer and preparation method thereof |
| CN109748759A (en) * | 2019-02-11 | 2019-05-14 | 权冉(银川)科技有限公司 | Material for water treatment and soil sanitation repair getting fat material and its system and method |
| CN110078576A (en) * | 2019-06-18 | 2019-08-02 | 牟钰德 | Butcher the method with breeding waste sewage and dead livestock and poultry straw biogas residue biogas slurry production improvement salt-soda soil mushy stage biological organic fertilizer |
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| Publication number | Publication date |
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| CN1034657C (en) | 1997-04-23 |
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