Prill: Difference between revisions
Adding short description: "Small aggregate or globule of a material" (Shortdesc helper) |
Prills coated with a second material look like prills from the outside, but they are something more complex in many ways, so let's not mix it up. |
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The material to be prilled must be in a solid state at room temperature and a low-viscosity liquid when melted. Prills are formed by allowing drops of the melted prill substance to congeal or freeze in mid-air after being dripped from the top of a tall [[prilling tower]]. Certain [[agrochemicals]] such as [[urea]] are often supplied in prilled form. Fertilizers ([[ammonium nitrate]], [[urea]], [[fertilizer|NPK fertilizer]]) and some [[detergent powder]]s are commonly manufactured as prills.<ref name=FertEncyl>Vasant Gowariker, V. N. Krishnamurthy, Sudha Gowariker, Manik Dhanorkar, Kalyani Paranjape (2009). ''The Fertilizer Encyclopedia''. John Wiley & Sons. {{ISBN|9780470410349}}. {{DOI|10.1002/9780470431771}}.</ref> |
The material to be prilled must be in a solid state at room temperature and a low-viscosity liquid when melted. Prills are formed by allowing drops of the melted prill substance to congeal or freeze in mid-air after being dripped from the top of a tall [[prilling tower]]. Certain [[agrochemicals]] such as [[urea]] are often supplied in prilled form. Fertilizers ([[ammonium nitrate]], [[urea]], [[fertilizer|NPK fertilizer]]) and some [[detergent powder]]s are commonly manufactured as prills.<ref name=FertEncyl>Vasant Gowariker, V. N. Krishnamurthy, Sudha Gowariker, Manik Dhanorkar, Kalyani Paranjape (2009). ''The Fertilizer Encyclopedia''. John Wiley & Sons. {{ISBN|9780470410349}}. {{DOI|10.1002/9780470431771}}.</ref> |
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Melted material may also be atomized and then allowed to form smaller prills that are useful in cosmetics, food, and animal feed |
Melted material may also be atomized and then allowed to form smaller prills that are useful in cosmetics, food, and animal feed. |
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==See also== |
==See also== |
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Revision as of 21:31, 5 December 2019
A prill is a small aggregate or globule of a material, most often a dry sphere, formed from a melted liquid. Prilled is a term used in mining and manufacturing to refer to a product that has been pelletized. The pellets are a neater, simpler form for handling, with reduced dust.
The material to be prilled must be in a solid state at room temperature and a low-viscosity liquid when melted. Prills are formed by allowing drops of the melted prill substance to congeal or freeze in mid-air after being dripped from the top of a tall prilling tower. Certain agrochemicals such as urea are often supplied in prilled form. Fertilizers (ammonium nitrate, urea, NPK fertilizer) and some detergent powders are commonly manufactured as prills.[1]
Melted material may also be atomized and then allowed to form smaller prills that are useful in cosmetics, food, and animal feed.
See also
References
- ^ Vasant Gowariker, V. N. Krishnamurthy, Sudha Gowariker, Manik Dhanorkar, Kalyani Paranjape (2009). The Fertilizer Encyclopedia. John Wiley & Sons. ISBN 9780470410349. doi:10.1002/9780470431771.