PL2245B1 - Method of obtaining fertilizers containing nitrogen and phosphoric acid. - Google Patents
Method of obtaining fertilizers containing nitrogen and phosphoric acid. Download PDFInfo
- Publication number
- PL2245B1 PL2245B1 PL2245A PL224520A PL2245B1 PL 2245 B1 PL2245 B1 PL 2245B1 PL 2245 A PL2245 A PL 2245A PL 224520 A PL224520 A PL 224520A PL 2245 B1 PL2245 B1 PL 2245B1
- Authority
- PL
- Poland
- Prior art keywords
- phosphoric acid
- containing nitrogen
- fertilizers containing
- urea
- obtaining fertilizers
- Prior art date
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title claims description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims description 14
- 229910000147 aluminium phosphate Inorganic materials 0.000 title claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 6
- 239000003337 fertilizer Substances 0.000 title claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 8
- 235000021317 phosphate Nutrition 0.000 claims description 8
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- AYTGUZPQPXGYFS-UHFFFAOYSA-N urea nitrate Chemical class NC(N)=O.O[N+]([O-])=O AYTGUZPQPXGYFS-UHFFFAOYSA-N 0.000 claims 1
- QHDUJTCUPWHNPK-UHFFFAOYSA-N methyl 7-methoxy-2h-indazole-3-carboxylate Chemical compound COC1=CC=CC2=C(C(=O)OC)NN=C21 QHDUJTCUPWHNPK-UHFFFAOYSA-N 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 3
- 150000003672 ureas Chemical class 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- MVXMNHYVCLMLDD-UHFFFAOYSA-N 4-methoxynaphthalene-1-carbaldehyde Chemical compound C1=CC=C2C(OC)=CC=C(C=O)C2=C1 MVXMNHYVCLMLDD-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical class [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002426 superphosphate Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 229940078499 tricalcium phosphate Drugs 0.000 description 1
- 229910000391 tricalcium phosphate Inorganic materials 0.000 description 1
- 235000019731 tricalcium phosphate Nutrition 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Description
W celu zastosowania wystepujacych w przyrodzie fosforanów w rolnictwie podda¬ wano je dotychczas tylko dzialaniu kwa¬ sów w stanie plynnym. Ta manipulacja (fabrykacja superfosfatów) ograniczona jest bardzo okreslonemi warunkami pracy, które dla kazdego oddzielnego surowego fosforanu musza byc wypróbowane i do¬ kladnie wypelniane. " Niektóre sposoby u- nikaja tego, wymagajac jednak ogrzewania do wyzszych temperatur. 'W kazdym ra¬ zie bylo niezbednem rozpuszczanie w kwa¬ sie azotowym surowych fosforanów w celu wytworzenia nawozów, zawierajacych obok kwasu fosforowego i azot.Wedlug niniejszego wynalazku mozna, w najprostszy sposób, mianowicie bez trak¬ towania surowego fosforanu plynami, bez ogrzewania i bez dodawania chemikalji, ob¬ ciazajacych produkt kosztami i zwiekszaja¬ cych jego wage — otrzymac nawóz, zawie¬ rajacy azot i kwas fosforowy w postaci rozpuszczalnej.Wynalazek opiera sie na tern spostrze¬ zeniu, ze azotan mocznika, jak w danym wypadku, lacznie z innemi solami moczni¬ ka i cialami pokrewnemi, moze rozpuscic fosforan trójwapniowy. Wynalazca stwier¬ dzil równiez, ze wilgoc ziemi jest wystar¬ czajaca, aby spowodowac reakcje pomie¬ dzy wymienionemi zwiazkami i surowemi fosforanami. Azotan mocznika, który po¬ dlug wynalazku moze byc uzyty do rozpu¬ szczania fosforanów, otrzymuje sie przez dzialanie kwasu azotowego na cyjanamid lub cyjanamidek wapnia. Ta sól mocznikajest wiec latwo dostepnym produktem tech¬ nicznym, który moze byc otrzymywany bez trudnosci w duzych ilosciach: Przyklad L 1000 kg „Gafsa" - fosfora- « nu o 57% CaB P2 08 byly drobno zmielone i zmieszane scisle z 1600 kg azotanu mocz¬ nika. Analiza otrzymanego w ten sposób nawozu wykazala nastepujace skladniki: 21,0% azotu 10,0% calkowitego kwasu fosforowego (p2o6) 9,9% kwasu fosforowego rozpuszczal¬ nego w wodzie.Bylo wiec 99% rozpuszczalnego w wo¬ dzie kwasu fosforowego.Przyklad II. 100 kg „Florida Hard Rock" o 69,6% C a3 P2 08 bylo drobno zmielone i zmieszane scisle z 2400 kg azo¬ tanu mocznika. Przy analizie otrzymanego w ten sposób produktu znaleziono naste¬ pujace liczby: 24% azotu 9,4% kwasu fosforowego calkowitego, 9,0% rozpuszczalnego w wodzie kwasu fosforowego.Wiec 96% kwasu fosforowego przeszlo w postac rozpuszczalna w wodzie.Przyklad III. 1000 kg apatytu o 89% Cas P2 08 byly drobno zmielone i zmie¬ szane z 2400 kg azotanu mocznika. Przy analizie otrzymanego w ten sposób produk¬ tu znaleziono nastepujace liczby: 24,0% azotu 12,0% calkowitego kwasu fosforowego 11,3% kwasu fosforowego rozpuszczal¬ nego w wodzie.Bylo wiec 94% kwasu fosforowego roz¬ puszczalnego w wodzie. Sposób pracy, jak równiez i otrzymane rezultaty przy uzyciu innych soli mocznika i cial pokrewnych, beda w przyblizeniu takie same. PLUntil now, in order to use naturally-occurring phosphates in agriculture, they have hitherto only been treated with acidic liquids. This manipulation (fabrication of superphosphates) is very limited by certain operating conditions which, for each individual raw phosphate, must be tested and carefully filled. "Some methods avoid this, but require heating to higher temperatures." At all times, it has been necessary to dissolve the raw phosphates in nitric acid in order to produce fertilizers containing in addition to phosphoric acid and nitrogen. the method, namely, without treating the raw phosphate with liquids, without heating and without the addition of chemicals that would make the product costly and add weight to the product - to obtain a fertilizer containing nitrogen and phosphoric acid in a soluble form. Since urea nitrate, as is the case, together with other urea salts and related bodies, may dissolve the tricalcium phosphate. and raw phosphates. Urea nitrate, which in the course of the invention can be used to dissolve phosphates, is obtained by the action of acid nitric acid to cyanamide or calcium cyanamide. This urea salt is therefore an easily available technical product that can be obtained without difficulty in large quantities: Example L 1000 kg of "Gafsa" - phosphate with 57% CaB P2 08 were finely ground and intimately mixed with 1600 kg of nitrate urine The analysis of the fertilizer obtained in this way showed the following components: 21.0% nitrogen 10.0% total phosphoric acid (p2o6) 9.9% water-soluble phosphoric acid. That is 99% water-soluble acid. Example 2 100 kg of "Florida Hard Rock" with 69.6% of C a 3 P2 08 was finely ground and intimately blended with 2,400 kg of urea nitrate. On analysis of the product thus obtained, the following figures were found: 24% nitrogen, 9.4% total phosphoric acid, 9.0% water-soluble phosphoric acid. So 96% phosphoric acid was converted to a water-soluble form. 1000 kg of apatite with 89% of Cas P2 08 were finely ground and mixed with 2400 kg of urea nitrate. On analysis of the product thus obtained, the following figures were found: 24.0% nitrogen, 12.0% total phosphoric acid, 11.3% water-soluble phosphoric acid. Thus, there was 94% water-soluble phosphoric acid. The method of work as well as the results obtained with the use of other urea salts and related bodies will be approximately the same. PL
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL2245B1 true PL2245B1 (en) | 1925-07-31 |
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