SU148070A1 - METHOD OF OBTAINING COMPLEX FERTILIZERS - Google Patents
METHOD OF OBTAINING COMPLEX FERTILIZERSInfo
- Publication number
- SU148070A1 SU148070A1 SU725324A SU725324A SU148070A1 SU 148070 A1 SU148070 A1 SU 148070A1 SU 725324 A SU725324 A SU 725324A SU 725324 A SU725324 A SU 725324A SU 148070 A1 SU148070 A1 SU 148070A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- urea
- complex fertilizers
- obtaining complex
- fertilizer
- nitrate
- Prior art date
Links
- 239000003337 fertilizer Substances 0.000 title description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 14
- 239000004202 carbamide Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 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 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N Phosphorus pentoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 2
- OTYBMLCTZGSZBG-UHFFFAOYSA-L Potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 2
- AYTGUZPQPXGYFS-UHFFFAOYSA-N Urea nitrate Chemical compound NC(N)=O.O[N+]([O-])=O AYTGUZPQPXGYFS-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 description 2
- 235000011151 potassium sulphates Nutrition 0.000 description 2
- NEFBYIFKOOEVPA-UHFFFAOYSA-K Dicalcium phosphate Chemical compound [Ca+2].[Ca+2].[O-]P([O-])([O-])=O NEFBYIFKOOEVPA-UHFFFAOYSA-K 0.000 description 1
- 235000019739 Dicalciumphosphate Nutrition 0.000 description 1
- VXAPDXVBDZRZKP-UHFFFAOYSA-N O[N+]([O-])=O.OP(O)(O)=O Chemical compound O[N+]([O-])=O.OP(O)(O)=O VXAPDXVBDZRZKP-UHFFFAOYSA-N 0.000 description 1
- DZHMRSPXDUUJER-UHFFFAOYSA-N [amino(hydroxy)methylidene]azanium;dihydrogen phosphate Chemical compound NC(N)=O.OP(O)(O)=O DZHMRSPXDUUJER-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 230000005591 charge neutralization Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 229940038472 dicalcium phosphate Drugs 0.000 description 1
- 229910000390 dicalcium phosphate Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 239000001120 potassium sulphate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
Известен способ получени сложных удобрений , содержаащх азот, фосфор и калий, путем взаимодействи продуктов азотиокислого разложени фосфата с бо.льшим количеством мочевины (325-500 кг на 1 т удобрени ). Мочевина св зывает нитрат кальци в комплекс с нитратом мочевины, почти всю фосфорную кислоту - в фосфат мочевины (образуетс также дикальцийфосфат), а избыток азотной кислоты - почти полностью в нитрат МОчевины . Затем ввод т сульфат кали , нейтрализуют состав аммиаком, выпаривают до 95%-ного содержани твердого продукта, гранулируют и сушат состав при 120-125°С. При этом получают удобрение (отпошепие N : РоОз : равио 3 : 1 ; 1,5) с содержанием водорастворимого PgOs 55-57% от обпдего и с общим количеством питательных веществ до 39%.A known method for producing complex fertilizers containing nitrogen, phosphorus, and potassium, by reacting the products of nitrate phosphate decomposition with more urea (325-500 kg per ton of fertilizer). Urea binds calcium nitrate into a complex with urea nitrate, almost all of the phosphoric acid into urea phosphate (dicalcium phosphate is also formed), and the excess of nitric acid almost completely into urea nitrate. Potassium sulphate is then introduced, the composition is neutralized with ammonia, evaporated to 95% solid, granulated and the composition is dried at 120-125 ° C. At the same time, a fertilizer is obtained (because of the N: Rooz: ravio 3: 1; 1.5) with a water-soluble PgOs content of 55-57% of total activity and with a total amount of nutrients up to 39%.
Таким образом, известиый способ пе обеснечивает получепие водорастворимой части Р2Оо более 57%, соотношение основных питательных вешеств в удобрении не оптимальное дл растений из-за новышеиного содержани азота в сравнении с фосфором и калием.Thus, the known method provides more than 57% of the water-soluble part of P2Oo to the preparative part, the ratio of the main nutrients in fertilizer is not optimal for plants due to the higher nitrogen content in comparison with phosphorus and potassium.
Предлагаемый способ отличаетс тем, что в результате введени небольшого количества мочевины, применеии другого сочетапи остальных компонентов, новой последовательности операций и условий их выполнени , более The proposed method differs in that as a result of the introduction of a small amount of urea, the use of another combination of the remaining components, the new sequence of operations and the conditions for their implementation, more
низкой температуры сущки готового состава получают удобрение с содержанием водорастворимого РаОо 80-96% от обш,его, с более оптимальным отношением N ; РаОг,: КаО, равпым от 1,1 : 1 : 1 до 1,4 : 1 : 1, обп1им содержанием пптательных венгеств 36-37%. При этом количество мочевины, соотношение остальных комнонептов и рП у/юбренн поддерживают такими, что мочевина в нем паходитс в виде нитрата мочевипы, а фосфорсодержащие вещества - в виде мопо- или дикальцпйфосфата илп нх смеси. Практически, дл получепн в продукте всего фосфорного ангидрида в водорастворимой форме ири отнощеиии PgOs : KsO, равном 1:1, мольиое отноиление CO(iNn2)2 : НзРО., не превосходпт 1:1. Аммиак дл иейтрализапии берут в количестве , соответствующем мольному отпон1ени10 Nlis : (ПзР04-ЬНР) пор дка 1 : 1, что регулируетс в соответствии с составом нсходпого сырь .low temperature of the ground composition of the finished composition receive a fertilizer with a content of water-soluble PaOo 80-96% of the total, it, with a more optimal ratio of N; RaOg: KAO, ravpym from 1.1: 1: 1 to 1.4: 1: 1, with an average fat content of 36–37%. At the same time, the amount of urea, the ratio of the remaining komonepts and the RP / juburn is supported by the fact that the urea in it falls in the form of nitrate, the urea, and the phosphorus-containing substances in the form of monophore or dicalcephosphate or mixtures. In practice, for the product of the whole phosphoric anhydride in water-soluble form, the ratio of PgOs: KsO is 1: 1, the molar ratio of CO (iNn2) 2: H3W, not 1: 1. Ammonia for neutralization is taken in an amount corresponding to molar ration of 10 Nlis: (PzP04-LHP) in the order of 1: 1, which is regulated in accordance with the composition of the raw material.
Процесс производства сложпого удобреии данным снособом протекает в вертнкальных реакторах, снабженных мешалкой, термопарой и рубашкой дл охлаждени водой. Сульфат кали раствор ют в 47-55%-пой азотной кнслоте , и полученным раствором обрабатывают апатит. К образовавшейс пульпе добавл ют мочевину н аммонизируют массу аммиаком при температуре не выше 75°С вначале в верThe process of producing fertilizer with this method proceeds in the vertical reactors equipped with a stirrer, a thermocouple and a jacket for cooling with water. Potassium sulfate is dissolved in 47-55% nitric acid, and the resulting solution is treated with apatite. Urea is added to the resulting pulp and the mass is ammoniated with ammonia at a temperature not higher than 75 ° C, first in ver
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU148070A1 true SU148070A1 (en) |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0095913B1 (en) | A process for preparing fertilizers | |
| RU2626947C1 (en) | Phosphorus-potassuim-nitrogen-containing npk-fertiliser and method for producing granulated phosphorus-potassuim-nitrogen-containing npk-fertiliser | |
| SU148070A1 (en) | METHOD OF OBTAINING COMPLEX FERTILIZERS | |
| US2680679A (en) | Manufacture of fertilizers | |
| EP0039241A2 (en) | Method and apparatus for producing nitrophosphate fertilizers | |
| RU2314278C1 (en) | Method of manufacturing granulated complex fertilizer | |
| SU234428A1 (en) | METHOD OF OBTAINING COMBINED FERTILIZER | |
| Saparov et al. | TECHNOLOGY OF NITRIC ACID PROCESSING OF WASTE ENRICHMENT OF PHOSPHORITES OF CENTRAL KYZYLKUM | |
| RU2607332C2 (en) | Method of producing compound fertiliser | |
| SU203701A1 (en) | METHOD OF OBTAINING COMPLEX FERTILIZERS | |
| SU1139721A1 (en) | Method of obtaining non-compacting fertilizer | |
| US1965301A (en) | Process for producing mixed fertilizers | |
| SU173250A1 (en) | ||
| RU2221758C1 (en) | Mixed nitrogen-phosphorus fertilizer and a method for production thereof | |
| RU2565021C1 (en) | Method of preparing compound fertiliser for sugar beet | |
| RU2174970C1 (en) | Complex nitrogen phosphoric mineral fertilizer and method of preparing thereof | |
| RU2141462C1 (en) | Method of preparing complex fertilizers | |
| SU1613441A1 (en) | Method of producing complex fertilizers | |
| US1542986A (en) | of geneva | |
| SU1393830A1 (en) | Method of producing complex fertilizers | |
| SU270753A1 (en) | METHOD OF OBTAINING COMPLEX FERTILIZERS | |
| PL166137B1 (en) | Method of obtaining a multicomponent mineral fertilizer | |
| SU1724652A1 (en) | Method of producing superphosphate with microelements | |
| RU2233819C1 (en) | Method for preparing complex fertilizer | |
| RU2551541C1 (en) | Method of producing compound fertiliser |