FIELD: chemistry.
SUBSTANCE: invention discloses a fertiliser granule which contains ammonium nitrate, having a nucleus which contains at least 80 wt % ammonium nitrate and a coating layer which contains calcium sulphate. Total content of nitrogen in the granule is at least 27 wt % and the coating layer essentially consists of a homogeneous mixture which contains calcium sulphate and ammonium nitrate. The method of obtaining fertiliser granules having nitrogen total content of at least 27 wt % involves bringing a nucleus containing at least 80 wt % ammonium nitrate into contact with an aqueous solution of ammonium nitrate and calcium sulphate particles to obtain a coating layer on the nucleus which essentially contains a homogeneous mixture containing calcium sulphate and ammonium nitrate.
EFFECT: obtaining fertiliser which is safe for storage and use, having high nitrogen content sufficient for mechanical stability and easy use.
31 cl, 2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| FERTILISER ELEMENTS HAVING COAT | 2003 |
|
RU2332392C2 |
| NITROGENOUS FERTILIZER MANUFACTURE PROCESS | 2003 |
|
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| COMPOUND FERTILIZER WITH PHOSPHOGYPSUM FILLER | 2023 |
|
RU2821906C1 |
| METHOD OF OBTAINING NITROPHOSPHATE PRODUCTS WITH HIGH NITROGEN CONTENT | 2007 |
|
RU2412139C2 |
| METHOD OF PRODUCING GRANULAR COMPOUND FERTILISER | 2009 |
|
RU2407721C1 |
| METHOD OF PRODUCING GRANULAR LIME-AMMONIA FERTILISER | 2007 |
|
RU2367638C2 |
| FERTILIZER IN THE FORM OF SPHERICAL GRANULES AND METHOD OF THEIR PRODUCTION | 2017 |
|
RU2662201C1 |
| METHOD OF OBTAINING FERTILIZER COMPOSITION CONTAINING NITRIFICATION INHIBITOR DMPSA BY ADDING DMPSA OR ITS SALTS TO FERTILIZER MOLTEN | 2019 |
|
RU2808271C2 |
| MIXED NITROGEN-PHOSPHORUS FERTILIZER AND A METHOD FOR PRODUCTION THEREOF | 2003 |
|
RU2221758C1 |
| METHOD OF PRODUCING GRANULAR INDUSTRIAL NITROGEN-CALCIUM FERTILISER | 2008 |
|
RU2475453C2 |
