Production of high-tower nitro compound fertilizers
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When high towers are used to produce nitro compound fertilizers, stone dust is used as a filler. While the solution is fed into the mixing mixer, stone dust is added in proportion. The addition of stone dust results in the emission of ammonia gas. I would like to ask experts: what is the reason for this, and are there any methods to suppress it? This post was last edited by ddfmy on 2008-7-13 01:33]
The pH of stone powder is generally between 7 and 9. At such high temperatures during melting, adding ammonia directly will surely cause it to evaporate. You can choose stone powder with a lower pH, or add the stone powder at the end, rather than letting it come into direct contact with **