METHOD FOR THE MANUFACTURE OF A UREA-BASED COMPOSITION COMPRISING THE ADDITION OF A LIQUID-FREE SOLID ADDITIVE
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United States of America Patent
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Issued Date -
Feb 15, 2024
app pub date -
Dec 21, 2021
filing date -
Dec 21, 2020
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Abstract
A method is disclosed for the manufacture of a homogeneous, solid, particulate, urea-based composition comprising urea and an additive in a urea production plant comprising at least an evaporator section and a particulation section, further comprising one or more of a mixing section, an effluent gas treatment section and a scrubber solution storage section, comprising the steps of:
- (i) concentrating a urea melt of about 80 weight % to about 95 to 99 weight % of urea;(ii) particulating a urea or urea-based melt into a urea or urea-based composition;(iii) mixing the urea melt of about 95 to 99 weight % with other fertilizer components to produce a urea-based melt;(iv) treating the effluent gas from the particulation section comprising urea-based dust particles and ammonia gas with water to produce a scrubber solution; and(v) storing the scrubber solution from the effluent gas treatment section.
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