PL19573B1 - Method for the production of fertilizers containing ammonium-magnesium phosphate. - Google Patents
Method for the production of fertilizers containing ammonium-magnesium phosphate. Download PDFInfo
- Publication number
- PL19573B1 PL19573B1 PL19573A PL1957331A PL19573B1 PL 19573 B1 PL19573 B1 PL 19573B1 PL 19573 A PL19573 A PL 19573A PL 1957331 A PL1957331 A PL 1957331A PL 19573 B1 PL19573 B1 PL 19573B1
- Authority
- PL
- Poland
- Prior art keywords
- magnesium phosphate
- mixture
- gypsum
- production
- containing ammonium
- Prior art date
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- MXZRMHIULZDAKC-UHFFFAOYSA-L ammonium magnesium phosphate Chemical compound [NH4+].[Mg+2].[O-]P([O-])([O-])=O MXZRMHIULZDAKC-UHFFFAOYSA-L 0.000 title claims description 7
- 239000003337 fertilizer Substances 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title claims 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 8
- 239000010440 gypsum Substances 0.000 claims description 7
- 229910052602 gypsum Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 5
- 239000001120 potassium sulphate Substances 0.000 claims description 5
- 235000011151 potassium sulphates Nutrition 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- 235000011132 calcium sulphate Nutrition 0.000 claims description 4
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 4
- 239000001175 calcium sulphate Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 239000002689 soil Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 229910052567 struvite Inorganic materials 0.000 description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000126 substance 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
Description
Fosforan amonowo-magnezowy stoso¬ wany jako nawóz daje, jak stwierdzono, doskonale wyniki. Sól te otrzymuje sie w sposób dogodny i tani przez stracanie we¬ dlug znanych metod.Jednakze przy suszeniu takiego straco¬ nego osadu w celu otrzymania produktu sproszkowanego, nadajacego sie do stoso¬ wania jako nawóz, napotyka sie na znaczna trudnosc. Suszenie mianowicie, stosowane w przemysle, powoduje znaczne straty a- monjaku, których trudno jest uniknac.Równiez w niektórych glebach nastepu¬ je powolny rozklad tej soli zlozonej, spo wodowany wilgocia gleby.Stwierdzono, ze mozna uniknac tych niedogodnosci, mieszajac otrzymany wil¬ gotny stracony osad z palonym gipsem i po¬ wodujac wiazanie sie tej mieszaniny. W ten sposób otrzymana mieszanine mozna latwo proszkowac. Gdy wskutek rozkladu soli zlozonej zaczyna wywiazywac sie amon jak, reaguje on z siarczanem wapnia i zostaje zwiazany jako siarczan amonowy. Jedno¬ czesnie tworzy sie równowazna ilosc stra¬ conego fosforanu wapniowego, który rosli¬ ny przyswajaja bardzo dobrze.W zaleznosci od tego, ile fosforanu ma- gnezowo-amonowego ma zawierac nawóz, dodaje sie badz tylko palony gips, badz tez mieszanine gipsu palonego i uwodnionego.Mozna równiez dodawac oprócz gipsu in¬ nych substancyj suchych, wzglednie wilgot¬ nych, których dzialanie uzyzniajace pote-guje dzialanie uzyzniajace fosforanu amo- nowo-magnezowego.W przypadku dodawania soli potaso¬ wych stwierdzono, ze szczególnie korzystne jest dodawanie siarczanu potasowego. Two¬ rzy sie wtedy sól podwójna siarczanu pota¬ su i wapnia, o znacznie mniejszej rozpu¬ szczalnosci od siarczanu potasu, dzieki czemu potas nie zostaje szybko wyplókiwa- ny z gleby. PLWhen used as a fertilizer, ammonium magnesium phosphate has been found to give excellent results. This salt is conveniently and cheaply obtained by loss according to known methods. However, in drying such lost sludge to obtain a powdered product suitable for use as a fertilizer, it is very difficult to dry. Industrially used drying, in particular, causes considerable losses of ammonium, which are difficult to avoid. Also in some soils there is a slow degradation of this complex salt due to soil moisture. It has been found that these inconveniences can be avoided by mixing the resulting wet lost precipitate with burned gypsum and cause this mixture to bind. The mixture obtained in this way can be easily powdered. When ammonium is released from the decomposition of a complex salt, it reacts with calcium sulfate and is bound as ammonium sulfate. At the same time, an equal amount of lost calcium phosphate is formed, which the plants absorb very well. Depending on how much magnesium ammonium phosphate the fertilizer is to contain, either only burnt gypsum or a mixture of burnt gypsum and In addition to gypsum, other dry, relatively wet substances, the regenerating effect of which potentiates the regenerating effect of magnesium ammonium phosphate, can also be added. In the case of the addition of potassium salts, the addition of potassium sulphate has been found to be particularly advantageous. The double salt of potassium and calcium sulphate is then formed, with a much lower solubility than potassium sulphate, so that the potassium is not quickly washed away from the soil. PL
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL19573B1 true PL19573B1 (en) | 1934-02-28 |
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