CN102603421B - Water-retaining fertilizer - Google Patents
Water-retaining fertilizer Download PDFInfo
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- CN102603421B CN102603421B CN201210095393.XA CN201210095393A CN102603421B CN 102603421 B CN102603421 B CN 102603421B CN 201210095393 A CN201210095393 A CN 201210095393A CN 102603421 B CN102603421 B CN 102603421B
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 241001494479 Pecora Species 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 18
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 8
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004202 carbamide Substances 0.000 claims abstract description 7
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000002829 reductive effect Effects 0.000 claims abstract description 6
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 238000004132 cross linking Methods 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000001763 2-hydroxyethyl(trimethyl)azanium Substances 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 6
- 235000019743 Choline chloride Nutrition 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 150000001413 amino acids Chemical class 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 6
- 239000011575 calcium Substances 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 229960003178 choline chloride Drugs 0.000 claims description 6
- SGMZJAMFUVOLNK-UHFFFAOYSA-M choline chloride Chemical compound [Cl-].C[N+](C)(C)CCO SGMZJAMFUVOLNK-UHFFFAOYSA-M 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000011777 magnesium Substances 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 6
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 5
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 claims description 5
- 239000001103 potassium chloride Substances 0.000 claims description 5
- 235000011164 potassium chloride Nutrition 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 238000009775 high-speed stirring Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 239000004615 ingredient Substances 0.000 abstract description 5
- 235000016709 nutrition Nutrition 0.000 abstract description 5
- 210000003608 fece Anatomy 0.000 abstract 5
- 239000010871 livestock manure Substances 0.000 abstract 5
- 229910000388 diammonium phosphate Inorganic materials 0.000 abstract 1
- 235000019838 diammonium phosphate Nutrition 0.000 abstract 1
- 239000012467 final product Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 235000010265 sodium sulphite Nutrition 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 29
- 239000011347 resin Substances 0.000 description 29
- 239000000243 solution Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 5
- 230000002745 absorbent Effects 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000050 nutritive effect Effects 0.000 description 3
- 230000003204 osmotic effect Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 239000000017 hydrogel Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 235000021049 nutrient content Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000003352 sequestering agent Substances 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001863 plant nutrition Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- -1 polyoxyethylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 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
- 238000011084 recovery Methods 0.000 description 1
- 239000012966 redox initiator Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 230000007226 seed germination Effects 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000001228 trophic effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Abstract
The invention relates to a water-retaining fertilizer, which is prepared by a method comprising the steps of: adding 50-80 parts by weight of acrylic acid in a container, adding 350 parts by weight of deionized water and mixing the mixture uniformly, and adjusting pH value with potassium hydroxide, wherein PH value of the system is adjusted to about 7.0; weighing 30-50 parts by weight of dried natural sheep manure and smashing the sheep manure into powder of 100 meshes; adding the prepared sheep manure powder to the solution, then adding 60-90 parts by weight of urea and 10-15 parts by weight of diammonium hydrogen phosphate, stirring to dissolve, then introducing nitrogen, and stirring at high speed for 30min; heating to 65 DEG C and gelatinizing for 20min under a pressure of 0.03-0.05MPa; adding 1.0 part by weight of potassium persulfate and 1.0 part by weight of sodium sulfite, agitating uniformly and adding 0.5 parts of N, N'-methylene bisacrylamide, and polymerizing at 50-60 DEG C for 1 hour to obtain a crosslinked polymerized product; and adding nutritional ingredients to obtain the final product. According to the invention, the water-retaining fertilizer obtained by the method provided by the invention has good water-retaining performance and biological and chemical stability, and the natural sheep manure is used as a base material, the effective nutritional ingredients of sheep manure is maitained, the effective use of resources is increased and the cost is reduced to a great extent.
Description
Technical field
The invention belongs to super absorbent resin field, be specifically related to water-maintaining fertilizer.
Background technology
China is a large agricultural country, and agricultural is the basis of national economy, is the Primary Industry that cannot replace.Modern agriculture is taking low input, high production, high-level efficiency and Sustainable development as feature.And closely-related chemical fertilizer industry and water resources are utilized the important substance basis of modern agricultural production and development especially therewith.Chemical fertilizer occupies an important position in agriculture production.Estimate according to Food and Argriculture OrganizationFAO (FAO), in the volume increase of developing country's grain, wherein 55% effect from chemical fertilizer.But due to factors such as volatilization, loss, infiltrations, in this season utilization ratio of China's chemical fertilizer, nitrogenous fertilizer is about 30-35% at present, and phosphate fertilizer is about 10-25%, and potash fertilizer is 35-50%, well below developed country's level.Low utilization rate of fertilizer not only causes huge financial loss, but also can cause serious environmental pollution, the eutrophication of for example water body, and farmland nitrogen is overflowed on the particularly impact etc. of ozonosphere of atmospheric layer, and then the health of human body has been formed to very large threat.Therefore, improve the utilization ratio of fertilizer, alleviate its pollution to environment, develop sustainable high-efficiency agriculture and become the common problem of paying close attention in various countries.
Dry early lack of water is restriction China's agricultural development and the important factor of accelerating desertification of land.The statistical information relevant according to country show, China's Desertification Soil area 262.2 ten thousand km', account for 27.4% of territory total area, and the direct economic loss causing because of desertification every year reaches 54,000,000,000 yuan.The big area situation that No kernels or seeds are gathered, as in a year of scarcity often occurs in a lot of areas.China's agricultural water accounts for 80% left and right of water resources consumption, but global water resources crisis makes Irrigation farming also must walk the evolutionary path of water conservation water saving.Therefore, improving Farmland Water utilization ratio is the central task of China's agricultural.
In recent years, in soil with water-absorbing polymer especially High hydrophilous resin improve the nutrition of plant and water regime oneself through causing people's extensive concern.Research is found, in agricultural, use water-absorbing polymer for improvement soil physical properties, promote seed germination and emerge, improve seedling surviving rate, to reduce plant all very potential to the needs of irrigating, many-side such as raising plant recovery of nutrient etc., and be widely applied, the actual popularization of High hydrophilous resin also lacks very much.Major cause is as follows: the one, and synthesizing super absorbent resin is on the high side; Another one major cause is function singleness, is difficult to meet many-sided demand of plant nutrition.
High hydrophilous resin is the macromole that a class contains hydrophilic radical and crosslinking structure, is made the earliest by the starch-grafted polyacrylonitrile of the employings such as Fanta through saponification again.Press raw material and divide, have starch-series (grafts, carboxymethylation etc.), cellulose-based (carboxymethylation, grafts etc.), several large classes of synthesized polymer system (polyacrylic, polyethenol series, polyoxyethylene system etc.).Wherein polyacrylic High hydrophilous resin, compared with starch-series and cellulose-based comparing, has the series of advantages such as production cost is low, technique is simple, production efficiency is high, water-retaining capacity is strong, shelf life of products is long, becomes the study hotspot in current this field.During world's High hydrophilous resin is produced at present, polyacrylic accounts for 80%.
High hydrophilous resin is generally the polymer electrolyte that contains hydrophilic radical and crosslinking structure.Before water suction, macromolecular chain is drawn close tangle up mutually, is cross-linked to each other and reticulates structure, thereby reach on the whole fastening.While contact with water, water molecules is penetrated in resin by wicking action and diffusion, and the ionizing group on chain ionizes in water.Because the electrostatic repulsion between homo-ion on chain makes macromolecular chain stretching, extension swelling.Due to electric neutrality requirement, gegenion can not move to resin outside, the poor formation reverse osmotic pressure of ionic concn between the solution of resin inside and outside.Water further enters in resin under the effect of reverse osmotic pressure, forms hydrogel.Meanwhile, the cross-linked structure of resin itself and hydrogen bond action, limited again the unlimited expansion of gel.In the time containing a small amount of salt in water, reverse osmotic pressure reduces, and simultaneously due to the shielding effect of gegenion, macromolecular chain is shunk, and causes the water-retaining capacity of resin greatly to decline.Conventionally only 1/10 left and right in deionized water of the water-retaining capacity of High hydrophilous resin in 0.9% NaCl solution.Water suction and water conservation are two aspects of a problem, and Lin Runxiong etc. have carried out Thermodynamic Discussion to this.Under certain temperature and pressure, High hydrophilous resin can spontaneously absorb water, and water enters in resin, the free enthalpy of whole system is reduced, until balance.If water is overflowed from resin, free enthalpy is raise, be unfavorable for the stable of system.Differential thermal analysis shows, the water that High hydrophilous resin absorbs more than C still has 50% to be enclosed in gel network at 150 °.Therefore, even exert pressure under normal temperature, water also can not overflowed from High hydrophilous resin, and this is to be determined by the thermodynamic property of High hydrophilous resin.
Although the exploitation of High hydrophilous resin only have the history of more than 30 year, its development is very noticeable.No matter be that research or the application of synthesizing aspect studied very active, existing starch based, as starch grafted acrylate etc., synthetic class, as polyacrylate, cellulose family etc., polymerized form has aqueous solution polymerization, inverse suspension polymerization etc., and the form of product has Powdered, pearl, membranaceous and fibrous etc.
Application agriculturally, because High hydrophilous resin cost is high, seriously hinder the application of High hydrophilous resin, numerous domestic scientific worker is doing a large amount of work aspect reduction High hydrophilous resin cost, but mainly concentrating in polymerization system, most work adds as wilkinite, the cheap materials such as the inorganic soil such as kaolin and Attapulgite mineral, reach the object reducing costs, can improve the hydrogel intensity after water-keeping material water suction although add some inorganic mineral, but the High hydrophilous resin soil addition that performance is good is lower, can not fundamentally reduce raw materials cost.Product function only has the water suction the same with common water-absorbing resin, releases water function in addition, lacks trophic function.
Publication number is that the application for a patent for invention of CN101113119A discloses a kind of water keeping fertilizer and preparation method thereof, it is mixing super absorbent resin composite making with sequestrant, provide some nutritive ingredients by sequestrant, and this method has no idea to reduce the tooling cost of super absorbent resin, add various composition finished products further to improve the cost of manufacturing simultaneously.
Summary of the invention
The object of this invention is to provide a kind of water-maintaining fertilizer;
The present invention has adopted following technical scheme: a kind of water-maintaining fertilizer, it is characterized in that, and comprise following composition:
50-80 parts by weight of acrylic acid, the dry natural sheep excrement of 30-50 weight part, urea 60-90 weight part, Secondary ammonium phosphate 10-15 weight part, the choline chloride 60 of the iron of the calcium of 0.5-1.2 weight part, the magnesium of 0.2-1.5 weight part, 0.4-0.8 weight part, the boron of 0.1-0.3 weight part, 0.6-0.8 weight part, the amino acid of 0.1-0.2 weight part, the alkyl sodium sulfonate of 0.7-0.9 part, and make according to following steps:
1) 50-80 parts by weight of acrylic acid is placed in to container, adds 350 parts by weight of deionized water to stir, reconcile pH value with potassium hydroxide, make system pH in 7.0 left and right;
2) take the dry natural sheep excrement of 30-50 weight part, be ground into 100 object powder;
3) by step 2) the sheep excrement powder that makes adds in the solution that step 1 makes, then adds urea 60-90 weight part, logical nitrogen high-speed stirring 30 minutes after Secondary ammonium phosphate 10-15 weight part stirring and dissolving;
4) by the solution of step 3 under the pressure of 0.03-0.05 MPa, be heated to 65 ° of C gelatinizations 20 minutes;
5) add oxygenant persulfuric acid sylvite 1.0 weight parts, add reductive agent S-WAT 1.0 weight parts, after stirring, add linking agent N, N '-methylene-bisacrylamide 0.5 weight part, polymerization in the time that temperature is 50-60 DEG C, polymerization time is 1 hour, obtains crosslinking polymerization product;
6) crosslinking polymerization product step 5 being obtained is moved in open container, add appropriate solution, described solution, containing the calcium of 0.5-1.2 weight part, the magnesium of 0.2-1.5 weight part, the iron of 0.4-0.8 weight part, the boron of 0.1-0.3 weight part, the choline chloride 60 of 0.6-0.8 weight part, the amino acid of 0.1-0.2 weight part, the alkyl sodium sulfonate of 0.7-0.9 part, fully stirs after 10 minutes and leaves standstill 2 hours;
7) product that will step 6) be moved in baking oven after taking out, and with anhydrous methanol dehydration 2 times, then be placed in baking oven with absolute ethanol washing, in 70 DEG C of oven dry, pulverize, and after 30 mesh sieves, obtain the finished product.
The nutrient content of sheep excrement and character: moisturely in sheep excrement be divided into 65.5%, organic 31.4%, nitrogen is 0.65%, and phosphorus is 0.47%, and potassium is 0.23%.Sheep excrement is of close texture and is dried, and nutriment in a fertilizer is dense, and nutrient content is high, and sheep excrement itself is also a kind of good water-retaining agent.The present invention is taking vinylformic acid, sheep excrement powder as base material, the persulfuric acid sylvite adopting is as oxygenant, S-WAT is as reductive agent, N, N '-methylene-bisacrylamide, adopts redox initiation system, polymerization under logical condition of nitrogen gas, and after manufacturing procedure, obtain crosslinking polymerization product, more supplementary appropriate nutritional cost makes.
Beneficial effect of the present invention is, the water retention property of the water-maintaining fertilizer by method gained of the present invention is good, biological and chemical good stability, simultaneously taking natural sheep excrement as base-material, retain effective nutritive ingredient of sheep excrement, expanded effective utilization of resource, and can significantly reduce costs.
Embodiment
Preparation and performance below by specific embodiment to high water absorbing resin in nutrition type of the present invention are described further.
Embodiment 1
1) 50 parts by weight of acrylic acid are placed in to container, add 350 parts by weight of deionized water to stir, reconcile pH value with potassium hydroxide, make system pH in 7.0 left and right;
2) take the dry natural sheep excrement of 30 weight parts, be ground into 100 object powder;
3) by step 2) the sheep excrement powder that makes adds in the solution that step 1 makes, then adds urea 60 weight parts, logical nitrogen high-speed stirring 30 minutes after Secondary ammonium phosphate 10-15 weight part stirring and dissolving;
4) by the solution of step 3 under the pressure of 0.03 MPa, be heated to 65 ° of C gelatinizations 20 minutes;
5) add 1.0 weight part persulfuric acid sylvite, add 1.0 weight part S-WATs, after stirring, add linking agent N, N '-methylene-bisacrylamide 0.5 weight part, polymerization in the time that temperature is 50 DEG C, polymerization time is 1 hour, obtains crosslinking polymerization product;
6) crosslinking polymerization product step 5 being obtained is moved in open container, add appropriate solution, described solution, containing the calcium of 0.5 weight part, the magnesium of 0.2 weight part, the iron of 0.4 weight part, the boron of 0.1 weight part, the choline chloride 60 of 0.6 weight part, the amino acid of 0.1 weight part, the alkyl sodium sulfonate of 0.7 part, fully stirs after 10 minutes and leaves standstill 2 hours;
7) product that will step 6) be moved in baking oven after taking out, and with anhydrous methanol dehydration 2 times, then be placed in baking oven with absolute ethanol washing, in 70 DEG C of oven dry, pulverize, and after 30 mesh sieves, obtain the finished product.
Embodiment 2
1) 80 parts by weight of acrylic acid are placed in to container, add 350 parts by weight of deionized water to stir, reconcile pH value with potassium hydroxide, make system pH in 7.0 left and right;
2) take the dry natural sheep excrement of 50 weight parts, be ground into 100 object powder;
3) by step 2) the sheep excrement powder that makes adds in the solution that step 1 makes, then adds urea 90 weight parts, logical nitrogen high-speed stirring 30 minutes after Secondary ammonium phosphate 15 weight part stirring and dissolving;
4) by the solution of step 3 under the pressure of 0.05 MPa, be heated to 65 ° of C gelatinizations 20 minutes;
5) add oxygenant persulfuric acid sylvite 1.0 weight parts, add reductive agent S-WAT 1.0 weight parts, after stirring, add linking agent N, N '-methylene-bisacrylamide 0.5 weight part, polymerization in the time that temperature is 60 DEG C, polymerization time is 1 hour, obtains crosslinking polymerization product;
6) crosslinking polymerization product step 5 being obtained is moved in open container, add appropriate solution, described solution, containing the calcium of 1.2 weight parts, the magnesium of 1.5 weight parts, the iron of 0.8 weight part, the boron of 0.3 weight part, the choline chloride 60 of 0.8 weight part, the amino acid of 0.2 weight part, the alkyl sodium sulfonate of 0.9 part, fully stirs after 10 minutes and leaves standstill 2 hours;
7) product that will step 6) be moved in baking oven after taking out, and with anhydrous methanol dehydration 2 times, then be placed in baking oven with absolute ethanol washing, in 70 DEG C of oven dry, pulverize, and after 30 mesh sieves, obtain the finished product.
The water retention property of the water-maintaining fertilizer by method gained of the present invention is good, and biological and chemical good stability, simultaneously taking natural sheep excrement as base-material, has retained effective nutritive ingredient of sheep excrement, has expanded effective utilization of resource, and can significantly reduce costs.
Claims (1)
1. a water-maintaining fertilizer, is characterized in that, comprises following composition:
50-80 parts by weight of acrylic acid, the dry natural sheep excrement of 30-50 weight part, urea 60-90 weight part, Secondary ammonium phosphate 10-15 weight part, the choline chloride 60 of the iron of the calcium of 0.5-1.2 weight part, the magnesium of 0.2-1.5 weight part, 0.4-0.8 weight part, the boron of 0.1-0.3 weight part, 0.6-0.8 weight part, the amino acid of 0.1-0.2 weight part, the alkyl sodium sulfonate of 0.7-0.9 part, and make according to following steps:
1) 50-80 parts by weight of acrylic acid is placed in to container, adds 350 parts by weight of deionized water to stir, reconcile pH value with potassium hydroxide, make system pH 7.0;
2) take the dry natural sheep excrement of 30-50 weight part, be ground into 100 object powder;
3) by step 2) the sheep excrement powder that makes adds in the solution that step 1 makes, then adds urea 60-90 weight part, logical nitrogen high-speed stirring 30 minutes after Secondary ammonium phosphate 10-15 weight part stirring and dissolving;
4) by the solution of step 3 under the pressure of 0.03-0.05 MPa, be heated to 65 ° of C gelatinizations 20 minutes;
5) add oxygenant persulfuric acid sylvite 1.0 weight parts, add reductive agent S-WAT 1.0 weight parts, after stirring, add linking agent N, N '-methylene-bisacrylamide 0.5 weight part, polymerization in the time that temperature is 50-60 DEG C, polymerization time is 1 hour, obtains crosslinking polymerization product;
6) crosslinking polymerization product step 5 being obtained is moved in open container, add appropriate solution, described solution, containing the calcium of 0.5-1.2 weight part, the magnesium of 0.2-1.5 weight part, the iron of 0.4-0.8 weight part, the boron of 0.1-0.3 weight part, the choline chloride 60 of 0.6-0.8 weight part, the amino acid of 0.1-0.2 weight part, the alkyl sodium sulfonate of 0.7-0.9 part, fully stirs after 10 minutes and leaves standstill 2 hours;
7) product that will step 6) be moved in baking oven after taking out, and with anhydrous methanol dehydration 2 times, then be placed in baking oven with absolute ethanol washing, in 70 DEG C of oven dry, pulverize, and after 30 mesh sieves, obtain the finished product.
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| CN103755469B (en) * | 2013-12-30 | 2016-01-06 | 付增传 | A kind of cattle and sheep muck soil improver |
| CN107986883A (en) * | 2017-12-25 | 2018-05-04 | 大连韩伟食品有限公司 | A kind of biomass combined preparation method of organic fertilizer |
| CN114736687B (en) * | 2022-05-05 | 2023-04-11 | 中国农业大学 | Soil water-retaining agent and preparation method and application thereof |
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| CN1178207A (en) * | 1996-09-30 | 1998-04-08 | 王纬 | High effective wide spectrum root promoting agent |
| CN101003600A (en) * | 2006-12-29 | 2007-07-25 | 中国科学院长春应用化学研究所 | Method for preparing high water absorbing resin in nutrition type for agricultural use |
| CN101003658A (en) * | 2006-12-29 | 2007-07-25 | 中国科学院长春应用化学研究所 | Method for preparing agricultural use of molding moisture agent in organic - inorganic composite nutrition type |
| CN101113119A (en) * | 2007-06-22 | 2008-01-30 | 中国农业大学 | Water-conserving fertilizer and method for preparing same |
| CN101205276A (en) * | 2006-12-18 | 2008-06-25 | 苏州国盾投资管理有限公司 | Low-cost nutrition type water keeping agent and preparation method thereof |
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|---|---|---|---|---|
| CN1178207A (en) * | 1996-09-30 | 1998-04-08 | 王纬 | High effective wide spectrum root promoting agent |
| CN101205276A (en) * | 2006-12-18 | 2008-06-25 | 苏州国盾投资管理有限公司 | Low-cost nutrition type water keeping agent and preparation method thereof |
| CN101003600A (en) * | 2006-12-29 | 2007-07-25 | 中国科学院长春应用化学研究所 | Method for preparing high water absorbing resin in nutrition type for agricultural use |
| CN101003658A (en) * | 2006-12-29 | 2007-07-25 | 中国科学院长春应用化学研究所 | Method for preparing agricultural use of molding moisture agent in organic - inorganic composite nutrition type |
| CN101113119A (en) * | 2007-06-22 | 2008-01-30 | 中国农业大学 | Water-conserving fertilizer and method for preparing same |
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