Sulfur coated fertilizers with improved abrasion resistance

Sulfur coated fertilizers with improved abrasion resistance

Sealant compositions for sulfur coated fertilizer particles are mixtures of wax materials and additives which provide improved moisture barrier properties and abrasion resistance. The sealants have penetration values measured by ASTM D-1321 of at least 20 at 25 DEG C., and congealing points measured...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HUDSON, ALICE P
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
FERTILISERS
FERTILISERS CHARACTERISED BY THEIR FORM
MANUFACTURE THEREOF
METALLURGY
MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05
MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS
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Beschreibung
Zusammenfassung:Sealant compositions for sulfur coated fertilizer particles are mixtures of wax materials and additives which provide improved moisture barrier properties and abrasion resistance. The sealants have penetration values measured by ASTM D-1321 of at least 20 at 25 DEG C., and congealing points measured by ASTM D-938 of between about 50 DEG C. and about 100 DEG C. The sealed fertilizer particles are conditioned with particulate materials with a surface area of at least about 2 m2/g and an oil absorption of at least about 100%. A method for the production of abrasion resistant sulfur coated fertilizers is also disclosed.