LT4571B - Liquid nitrogeneous fertilizers and process for preparing thereof - Google Patents
Liquid nitrogeneous fertilizers and process for preparing thereof Download PDFInfo
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- LT4571B LT4571B LT98-154A LT98154A LT4571B LT 4571 B LT4571 B LT 4571B LT 98154 A LT98154 A LT 98154A LT 4571 B LT4571 B LT 4571B
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- dolomite
- liquid nitrogen
- water
- producing liquid
- urea
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 59
- 239000007788 liquid Substances 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 98
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 50
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 23
- 239000010459 dolomite Substances 0.000 claims abstract description 23
- 239000004202 carbamide Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 14
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 12
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 12
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 6
- 235000015097 nutrients Nutrition 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 150000002823 nitrates Chemical class 0.000 claims abstract description 4
- 239000011701 zinc Substances 0.000 claims abstract description 4
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 150000001642 boronic acid derivatives Chemical class 0.000 claims abstract description 3
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims abstract description 3
- 150000003841 chloride salts Chemical class 0.000 claims abstract description 3
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 3
- 239000010941 cobalt Substances 0.000 claims abstract description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 3
- 150000001875 compounds Chemical class 0.000 claims abstract description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 3
- 150000004694 iodide salts Chemical class 0.000 claims abstract description 3
- 235000007079 manganese sulphate Nutrition 0.000 claims abstract description 3
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical class [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims abstract description 3
- 235000010755 mineral Nutrition 0.000 claims abstract description 3
- 239000011707 mineral Substances 0.000 claims abstract description 3
- QYHFIVBSNOWOCQ-UHFFFAOYSA-N selenic acid Chemical class O[Se](O)(=O)=O QYHFIVBSNOWOCQ-UHFFFAOYSA-N 0.000 claims abstract description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 13
- 239000011575 calcium Substances 0.000 claims description 12
- 229910052791 calcium Inorganic materials 0.000 claims description 11
- 239000011573 trace mineral Substances 0.000 claims description 9
- 235000013619 trace mineral Nutrition 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical class [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 claims description 6
- CSGLCWIAEFNDIL-UHFFFAOYSA-O azanium;urea;nitrate Chemical compound [NH4+].NC(N)=O.[O-][N+]([O-])=O CSGLCWIAEFNDIL-UHFFFAOYSA-O 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 238000006386 neutralization reaction Methods 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- YLUIKWVQCKSMCF-UHFFFAOYSA-N calcium;magnesium;oxygen(2-) Chemical compound [O-2].[O-2].[Mg+2].[Ca+2] YLUIKWVQCKSMCF-UHFFFAOYSA-N 0.000 claims 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims 1
- 239000002244 precipitate Substances 0.000 claims 1
- 235000013877 carbamide Nutrition 0.000 abstract description 18
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract description 15
- 239000000395 magnesium oxide Substances 0.000 abstract description 13
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract description 11
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract description 11
- 239000000126 substance Substances 0.000 abstract description 8
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000292 calcium oxide Substances 0.000 abstract description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004327 boric acid Substances 0.000 abstract description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000013049 sediment Substances 0.000 abstract description 3
- 230000009920 chelation Effects 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 10
- 239000011777 magnesium Substances 0.000 description 10
- 238000002425 crystallisation Methods 0.000 description 9
- 230000008025 crystallization Effects 0.000 description 9
- 229910052749 magnesium Inorganic materials 0.000 description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 3
- 230000029087 digestion Effects 0.000 description 2
- 238000009938 salting Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 235000021049 nutrient content Nutrition 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Fertilizers (AREA)
Abstract
Description
11
LT 4571 B Išradimas priklauso skystųjų azoto trąšų gamybai ir gali būti naudojamas skystosioms azoto trąšoms su kalciu ir magniu gaminti iš dolomito. Žinomos skystosios azoto trąšos, kurias nesudėtinga gaminti, o jų transportavimo, laikymo ir įterpimo į dirvą procesai yra visiškai mechanizuoti [Kohctkob B. H. npOH3BoącTBO >κηλκηχ KOMJieKCHi>ix y^oSpeHHH. MocKBa. 1978]. Tačiau, esant didesnei azoto koncentracijai, vyksta druskų išsūdymas ir jos kristalinasi. Mažesnės koncentracijos azoto trąšose būna daugiau vandens, kurio pervežimas kainuoja papildomas išlaidas. Todėl pranašesnės tos skystosios azoto trąšos, kuriose yra didesnė azoto, o taip pat kalcio ir magnio koncentracija bei žemesnė kristalizacijos temperatūra.The invention relates to the production of liquid nitrogen fertilizers and can be used to produce liquid nitrogen fertilizers with calcium and magnesium from dolomite. Known liquid nitrogen fertilizers that are easy to produce, and their processes for transporting, storing, and inserting into the soil are fully mechanized [Kohctkob B.H. npOH3BoącTBO > MocKBa. 1978]. However, with higher nitrogen concentrations, salt salting and crystalline salting occur. Lower concentrations of nitrogen fertilizers contain more water, the cost of which is extra. Therefore, liquid nitrogen fertilizers with higher nitrogen and calcium and magnesium concentrations and lower crystallization temperatures are superior.
Yra žinomas skystųjų azoto trąšų, kuriose yra kalcio ir magnio, v gamybos būdas iš dolomito [R. Slinkšienė, J. Kumpikevičiūtė, A. M. Sviklas. // Cheminė technologija. 1997. Nr. 1(5). P. 5-9], kai dolomitas skaidomas azoto rūgštimi, neutralizuojamas amoniako vandeniu iki pH 5,5 ir standarizuojamas amonio nitratu. Taip pagamintose skystosiose trąšose azoto yra 16% (masės), kalcio oksido - 6%, o magnio oksido - 4%. Tokios koncentracijos skystųjų azoto trąšų su kalciu ir magniu naudojimas duoda , palyginus, nedidelį ekonominį efektą.There is a known method for producing liquid nitrogen fertilizers containing calcium and magnesium from dolomite [R. Slinkšienė, J. Kumpikevičiūtė, A. M. Sviklas. // Chemical technology. 1997 No. 1 (5). P. 5-9] when dolomite is decomposed with nitric acid, neutralized with ammonia water to pH 5.5 and standardized with ammonium nitrate. The nitrogen fertilizers thus produced contain 16% (by weight) of nitrogen, 6% with calcium oxide and 4% with magnesium oxide. The use of this concentration of liquid nitrogen fertilizers with calcium and magnesium gives a relatively small economic effect.
Artimiausias žinomas techninis sprendimas - ČSSR išradimas A. I. 214951 (prioritetas paskelbtas nuo 1972 11 28) "Skystosios trąšos, kuriose yra magnio". Jos gaunamos 20°C temperatūroje sumaišant 20,7% magnio ir kalcio nitratų, 36,8% karbamido, 36,8% amonio nitrato bei 5,7% vandens. Tokios trąšos nesikristalizuoja iki 4°C temperatūros. Trąšose yra 32,9% N, 1,95% MgO ir 2,4% CaO. Išradimo trūkumas - gamybai naudojamos grynos medžiagos -nitratai bei karbamidas, o tai gerokai padidina produkto savikainą. Be to, 4°C kristalizacijos temperatūra labai riboja skystųjų azoto trąšų gamybos ir naudojimo sezoniškumą. Kalcio bei magnio oksidų koncentracija yra nedidelė.The closest known technical solution is the invention of ChSSR A.I. 214951 (priority published since 28.11.1972) " Liquid fertilizers containing magnesium ". They are obtained by mixing 20.7% magnesium and calcium nitrate, 36.8% urea, 36.8% ammonium nitrate and 5.7% water at 20 ° C. Such fertilizers do not crystallize to 4 ° C. The fertilizer contains 32.9% N, 1.95% MgO and 2.4% CaO. A drawback of the invention is the use of pure materials, such as nitrates and urea, which significantly increases the cost of the product. In addition, the temperature of 4 ° C crystallization significantly limits the seasonality of the production and use of liquid nitrogen fertilizers. Calcium and magnesium oxide concentrations are low.
Patentuojamos skystosios azoto trąšos, kuriose yra amonio, kalcio ir magnio nitratų bei karbamido arba kito azoto komponento, o maisto medžiagų kiekis (masės procentais) yra: azoto 16-26 kalcio oksido 3-6 magnio oksido 2-4 mikroelementų 0,01 -1,00 vandens iki 100. 2Patented liquid nitrogen fertilizers containing ammonium, calcium and magnesium nitrate and urea or other nitrogen component and nutrient content (percentage by weight): nitrogen 16-26 calcium oxide 3-6 magnesium oxide 2-4 trace elements 0.01 -1 , 00 water to 100. 2
LT 4571 BLT 4571 B
Skystąsias azoto trąšas gamina skaidant, neutralizuojant ir standarizuojant skaidymo mišinį. Kalcio ir magnio žaliava yra dolomitas.Liquid nitrogen fertilizer is produced by decomposition, neutralization and standardization of the decomposition mixture. The raw material for calcium and magnesium is dolomite.
Dolomitą skaido azoto rūgštimi 20-100°C temperatūroje, 10-90 minučių, neutralizuoja amoniaku arba amoniako vandeniu iki pH 1,5-7,5 ir standartizuoja azoto komponentu, geriausiai karbamidu. Azoto rūgšties koncentracija yra 20-58%.The dolomite is decomposed with nitric acid at 20-100 ° C for 10-90 minutes, neutralized with ammonia or ammonia in water to pH 1.5-7.5 and standardized with a nitrogen component, preferably urea. The concentration of nitric acid is 20-58%.
Mikroelementų koncentraciją didina naudojant medžiagas, susidedančias iš vario, cinko, kobalto, mangano sulfatų, chloridų, karbonatų, nitratų, oksidų, chelatinių junginių ir molibdatų, boro rūgšties, boratų, boro mineralų, selenatų ar jodidų.The concentration of trace elements is increased by using materials consisting of copper, zinc, cobalt, manganese sulphates, chlorides, carbonates, nitrates, oxides, chelating compounds and molybdates, boric acid, borates, boron minerals, selenates or iodides.
Naudoja karbamidą arba kitą azoto komponentą, kuris yra 0,1-99% koncentracijos vandens tirpalas arba lydalas, ir prideda nuo 0,1 iki 560 dolomito masės procentų.Uses urea or other nitrogen component that is a 0.1-99% water solution or melt and adds 0.1 to 560 percent by weight of dolomite.
Dolomito skaidymo mišinio nuosėdas atskiria ir tirpalą sumaišo su azoto komponentu.The sediment of the dolomite decomposition mixture is separated and the solution mixed with the nitrogen component.
Azoto komponentu naudoja amonio nitratą karbamidą skystąsias azoto trąšas (karbamido amonio nitratų tirpalą), amonijakatus.The nitrogen component uses ammonium nitrate urea liquid nitrogen fertilizers (urea ammonium nitrate solution), ammonium roofs.
Skaidymo tirpalą neutralizuoja amoniaku arba amoniako vandeniu prieš arba po sumaišymo su azoto komponentu.The decomposition solution is neutralized with ammonia or ammonia water before or after mixing with the nitrogen component.
Skystųjų azoto trąšų, kuriose yra amonio, kalcio ir magnio nitratų bei karbamido, gamybos technologija yra tokia (žiūr. technologinę schemą):The technology for producing liquid nitrogen fertilizers containing ammonium, calcium and magnesium nitrates and urea is as follows (see technological scheme):
Azoto rūgštį iš indo 1, o dolomitą iš bunkerio 2 tiekia į reaktorių 3, kuriame vyksta dolomito skaidymo reakcija. Šį mišinį neutralizatoriuje 4 neutralizuoja amoniaku arba amoniako vandeniu iŠ indo 10. Skystąsias trąšas tiekia į standartizatorių 5, kuriame iš bunkerio 6 prideda karbamido arba kito azoto komponento. Iš tarpinio indo 7 siurbliais 8 skystąsias trąšas tiekia į skystųjų trąšų talpyklą 9. Esant reikalui, prideda mikroelementų ir papildomai maišo standartizatoriuje 5. Iš talpyklos 9 skystąsias trąšas pumpuoja į auto ar geležinkelio cisternas. Nuosėdas, kurios nusėda neutralizatoriuje 4 ir standartizatoriuje 5 pašalina į šlamo duobę 11.Nitric acid from vessel 1 and dolomite from bunker 2 are supplied to reactor 3 where dolomite degradation reaction occurs. This mixture is neutralized in ammonia 4 with ammonia or ammonia water from the vessel 10. The liquid fertilizer is supplied to the standardizer 5, where urea or other nitrogen component is added from the bunker 6. From the reservoir 7, the pumps deliver 8 liquid fertilizers to the liquid fertilizer container 9. If necessary, add trace elements and additionally mix in the standardizer 5. From the tank 9, liquid fertilizer is pumped into auto or rail tanks. The sediment that settles in the neutralizer 4 and the standardizer 5 removes the sludge pit 11.
Patentuojamų skystųjų azoto trąšų gamybai gali būti naudojamos tokios žaliavos: 1. Dolomitas, OST 1484-82, C-OST 25607-83; 2. Azoto rūgštis, OST 113-03-270-76; 3. Amoniako vanduo, OST 9-77; 4. Karbamidas, OST 2081-75; 5. Chemiškai valytas vanduo.The following raw materials can be used for the production of patented liquid nitrogen fertilizers: 1. Dolomite, OST 1484-82, C-OST 25607-83; 2. Nitric acid, OST 113-03-270-76; 3. Ammonia Water, OST 9-77; 4. Carbamide, OST 2081-75; 5. Chemically cleaned water.
LT 4571 BLT 4571 B
JJ
Skystųjų azoto trąšų techninės charakteristikos gali būti nustatytos šiais būdais: 1. Azoto masė, % - fotokolorimetriniu, formaldehidiniu; 2. Kalcio masė, % - kompleksonometriniu; 3. Magnio masė, % - kompleksonometriniu; 4. Tankis-areometru; 5. Kinematinė klampa - viskozimetru; 6. Lūžio rodiklis - refraktometru; 7. pH-pH metru; 8. Kristalizacijos temperatūra - vizualiniu politermiu metodu. Išradimo esmė iliustruojama pavyzdžiais. 1 Pavyzdys: lOOg Petrašiūnų dolomito skaido 57% koncentracijos azoto rūgštimi, santykiu 1:1. Skaidymą vykdo 80°C temperatūroje 70min. Į skaidymo tirpalą prideda 100% pagal medžiagų balansą apskaičiuoto karbamido kiekio (491 g), 14g amoniako vandens ir 214g vandens. Gautas N-CaO-MgO trąšas filtruoja. Trąšų sudėtis pateikta lentelėje. 2 Pavyzdys: Skaido analogiškai, kaip aprašyta 1 pavyzdyje. Į skaidymo tirpalą prideda 80% pagal medžiagų balansą apskaičiuoto karbamido kiekio (392g), 14g amoniako vandens ir 314g vandens. Gautas N-CaO-MgO trąšas filtruoja. Trąšų sudėtis pateikta lentelėje. 3 Pavyzdys: 200g Petrašiūnų dolomito skaido 57% koncentracijos azoto rūgštimi, santykiu 1:1. Skaidymą vykdo 80°C temperatūroje 70min. Į skaidymo tirpalą prideda 100% pagal medžiagų balansą apskaičiuoto amonio nitrato kiekio (207g), 22g amoniako vandens ir 94g vandens. Gautas N-CaO-MgO trąšas filtruoja. Trąšų sudėtis pateikta lentelėje. 4 Pavyzdys: lOOg Petrašiūnų dolomito skaido 57% koncentracijos azoto rūgštimi, santykiu 1:1,2. Skaidymą vykdo 50°C temperatūroje 50min. Į skaidymo tirpalą prideda 100% pagal medžiagų balansą apskaičiuoto karbamido kiekio (456g), 40g amoniako vandens ir 144g vandens. Gautas N-CaO-MgO trąšas filtruoja. Trąšų sudėtis pateikta lentelėje. 4The technical characteristics of liquid nitrogen fertilizers can be determined in the following ways: 1. Nitrogen mass,% - photocolorimetric, formaldehyde; 2. Calcium mass,% - complexonometric; 3. Mass of magnesium,% - complexonometric; 4. Density-hydrometer; 5. Kinematic viscosity - viscometer; 6. Refractive index - refractometer; 7. pH-pH meter; 8. Crystallization temperature - by visual polytermic method. The essence of the invention is illustrated by examples. Example 1: lOOg Petrašiūnai dolomite breaks down 57% nitric acid in a ratio of 1: 1. Dissolve at 80 ° C for 70min. 100% of the calculated urea content (491 g), 14 g of ammonia water and 214 g of water are added to the decomposition solution. The resulting N-CaO-MgO fertilizer is filtered. The composition of the fertilizer is given in the table. Example 2: Counts analogously as described in Example 1. 80% urea (392g), 14g ammonia water and 314g water are added to the decomposition solution. The resulting N-CaO-MgO fertilizer is filtered. The composition of the fertilizer is given in the table. Example 3: 200g Petrašiūnai dolomite breaks down 57% nitric acid in a 1: 1 ratio. Dissolve at 80 ° C for 70min. 100% ammonium nitrate (207g), 22g ammonia water and 94g water added to the digestion solution. The resulting N-CaO-MgO fertilizer is filtered. The composition of the fertilizer is given in the table. Example 4: lOOg Petrašiūnai dolomite breaks down 57% nitric acid in a ratio of 1: 1.2. Dissolve at 50 ° C for 50min. 100% of the calculated urea content (456g), 40g of ammonia water and 144g of water are added to the decomposition solution. The resulting N-CaO-MgO fertilizer is filtered. The composition of the fertilizer is given in the table. 4
LT 4571 B 5 Pavyzdys: Skaido analogiškai, kaip aprašyta 4 pavyzdyje. Į skaidymo tirpalą prideda 80% pagal medžiagų balansą apskaičiuoto karbamido kiekio (365g), 40g amoniakio vandens ir 262g vandens. Gautas N-CaO-MgO trąšas filtruoja. Trąšų sudėtis pateikta lentelėje. 6 Pavyzdys: 200g Petrašiūnų dolomito skaido 57% koncentracijos azoto rūgštimi, santykiu 1:1,2. Skaidymą vykdo 50°C temperatūroje 50min. Į skaidymo tirpalą prideda 100% pagal medžiagų balansą apskaičiuoto amonio nitrato kiekio (207g), 68g amoniako vandens ir 40g vandens. Gautas N-CaO-MgO trąšas filtruoja. Trąšų sudėtis pateikta lentelėje. 7 Pavyzdys:Trąšas gamina, kaip aprašyta 4 pavyzdyje.Papildomai prideda mikroelementų druskų: l,0g vario nitrato, 0,8g cinko nitrato, l,0g mangano nitrato, 1,2 boro rūgšties. Gautas N-CaO-MgO trąšas su mikroelementais filtruoja. Trąšų sudėtis pateikta lentelėje.Example 5: Counts analogously as described in Example 4. 80% urea (365g), 40g ammonia water and 262g water are added to the decomposition solution. The resulting N-CaO-MgO fertilizer is filtered. The composition of the fertilizer is given in the table. Example 6: 200g Petrašiūnai dolomite breaks down 57% nitric acid in a ratio of 1: 1.2. Dissolve at 50 ° C for 50min. 100% ammonium nitrate (207g), 68g ammonia water and 40g water added to the digestion solution. The resulting N-CaO-MgO fertilizer is filtered. The composition of the fertilizer is given in the table. Example 7: Fertilizer is produced as described in Example 4. In addition, trace element salts are added: l, 0g of copper nitrate, 0.8g of zinc nitrate, 1.0g of manganese nitrate, 1.2 boric acid. The resulting N-CaO-MgO fertilizer with trace elements filters. The composition of the fertilizer is given in the table.
Skystųjų azoto trąšų fizikinėms cheminėms savybėms įvertinti buvo ištirti visi pagamintų trąšų pavyzdžiai. Analizių rezultatai pateikti lentelėje.For the assessment of the physical chemical properties of liquid nitrogen fertilizers, all samples of the fertilizers produced were investigated. The results of the analyzes are presented in the table.
LentelėTable
Skystųjų azoto trąšų sudėtis bei fizikinės cheminės savybėsComposition and physico-chemical properties of liquid nitrogen fertilizers
Eil. Maisto medžiagos, % pH Tkr,°C Tankis, Dinaminė Lūžio Nr. N CaO MgO Suma g/cmJ klampa, P rodiklis ' 1. 26 J 2 31 2,5 +7,5 1,278 5,987 1,446 2. 21 -> J 2 26 1,7 -20,5 1,257 4,004 1,427 3. 16,13 6 4 26,13 4,0 +2,6 1,504 8,546 1,445 4. 26 J 2 31 5,4 -3,3 1,281 5,479 1,440 5. 22 3 2 27 3,0 -20,9 1,253 3,941 1,423 6. 16,10 6 4 26,10 4,5 -0,2 1,516 9,649 1,443 7. 26 3 2 31 4,9 -4,6 1,288 5,527 1,441 5Yesterday Food stuffs,% pH Tkr, ° C Density, Dynamic Fracture No. N CaO MgO Amount g / cmJ viscosity, P indicator '1. 26 J 2 31 2,5 +7,5 1,278 5,987 1,446 2. 21 - > J 2 26 1.7 -20.5 1.257 4.004 1.427 3. 16.13 6 4 26.13 4.0 +2.6 1.504 8.546 1.445 4. 26 J 2 31 5.4 -3.3 1.228 5.479 1.440 5 22 3 2 27 3.0 -20.9 1.253 3.941 1.423 6. 16.10 6 4 26.10 4.5 -0.2 1.516 9.649 1.443 7. 26 3 2 31 4.9 -4.6 1.288 5,527 1.441 5
LT 4571 BLT 4571 B
Lentelėje pateikti duomenys rodo, kad nuo azoto komponento (šiuo atveju karbamido) kiekio priklauso visos fizikinės cheminės savybės. Didėjant CO(NH2)2, didėja pH, tankis, lūžio rodiklis ir ypač dinaminė klampa. Kristalizacijos temperatūra taip pat priklauso nuo karbamido kiekio. Esant 80% CO(NH2)2, (nuo apskaičiuoto kiekio) yra žema kristalizacijos temperatūra, tačiau nepakankankamai didelė maisto medžiagų koncentracija (2 ir 5 pavyzdžiai). Padidinus karbamido koncentraciją iki 100% padidėja maisto medžiagų koncentracija ir išlieka gana žema kristalizacijos temperatūra (1 ir 4 pavyzdžiai).The data in the table show that the total amount of physical chemical properties depends on the nitrogen component (in this case urea). Increasing CO (NH2) 2 increases pH, density, refractive index and particularly dynamic viscosity. The crystallization temperature also depends on the amount of urea. At 80% CO (NH2) 2 (from the calculated amount) is a low crystallization temperature, but the concentration of nutrients is not high (Examples 2 and 5). Increasing the concentration of urea increases the concentration of nutrients by up to 100% and maintains a rather low crystallization temperature (Examples 1 and 4).
Azoto komponentu naudojant amonio nitratą (3 ir 6 pavyzdžiai) fizikinės cheminės savybės skiriasi nežymiai, gaunama gana žema kristalizacijos temperatūra, tačiau žymiai mažesnė maisto medžiagų koncentracija.The use of ammonium nitrate (Examples 3 and 6) in the nitrogen component differs slightly from the physical chemical properties, resulting in a relatively low crystallization temperature, but significantly lower nutrient concentrations.
Geriausi rezultatai gauti 4 ir 7 pavyzdžiuose, kuriuose yra aukšta maisto medžiagų koncentracija (iki 31%), mikroelementai (7 pavyzdys), pakankamai žema kristalizacijos temperatūra (-3,3 ir —4,6°C) bei geros fizikinės cheminės savybės.The best results were obtained in Examples 4 and 7 containing high nutrient concentrations (up to 31%), trace elements (Example 7), low crystallization temperature (-3.3 and -4.6 ° C) and good physical chemical properties.
Patentuojamų skystųjų trąšų yra žema kristalizacijos temperatūra, didelė azoto, kalcio ir magnio koncentracija. Šioms trąšoms gaminti naudojama lietuviška žaliava - dolomitas. Be to, iš dolomito į skystąsias trąšas pereina kai kurie mikroelementai (Zn, Mn, Cu). Skystosios azoto trąšos, turinčios kalcio ir magnio, praplečia skystųjų trąšų asortimentą bei panaudojimo žemės ūkyje sritis.The patented liquid fertilizer has a low crystallization temperature, high concentrations of nitrogen, calcium and magnesium. The Lithuanian raw material - dolomite is used for the production of these fertilizers. In addition, some trace elements (Zn, Mn, Cu) are transferred from dolomite to liquid fertilizers. Liquid nitrogen fertilizers containing calcium and magnesium expand the range of liquid fertilizers and use in agriculture.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LT98-154A LT4571B (en) | 1998-11-03 | 1998-11-03 | Liquid nitrogeneous fertilizers and process for preparing thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LT98-154A LT4571B (en) | 1998-11-03 | 1998-11-03 | Liquid nitrogeneous fertilizers and process for preparing thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| LT98154A LT98154A (en) | 1999-05-25 |
| LT4571B true LT4571B (en) | 1999-10-25 |
Family
ID=19722014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LT98-154A LT4571B (en) | 1998-11-03 | 1998-11-03 | Liquid nitrogeneous fertilizers and process for preparing thereof |
Country Status (1)
| Country | Link |
|---|---|
| LT (1) | LT4571B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LT5668B (en) | 2008-08-13 | 2010-07-26 | Akcinė bendrovė "ACHEMA" | FERTILIZED CALCIUM NITRATE FERTILIZERS AND THEIR METHOD |
-
1998
- 1998-11-03 LT LT98-154A patent/LT4571B/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LT5668B (en) | 2008-08-13 | 2010-07-26 | Akcinė bendrovė "ACHEMA" | FERTILIZED CALCIUM NITRATE FERTILIZERS AND THEIR METHOD |
Also Published As
| Publication number | Publication date |
|---|---|
| LT98154A (en) | 1999-05-25 |
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