Reaction conditions and results of urea with formaldehyde
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Currently, many domestic manufacturers add formaldehyde as an additive to the large-grain urea they produce. The main functions of this additive are to reduce urea dust, increase the strength of urea particles, and facilitate slow-release effects. When formaldehyde is added to the urea solution and then sent to the granulation system, a reaction occurs between the two substances. One of the products of this reaction is methylenediurea (MDU), which has a slow-release effect. I would like to ask the experts and specialists here: what products are formed when urea reacts with formaldehyde under different molar ratios, different temperatures, and different pH values? What are the specific principles behind their reactions and what are the reaction conditions? Those who are engaged in research and work in this field, please give me an answer. Thank you. This post was last edited by qiwu9981 on 2008-5-27 21:55.]
Bro, any results? If there is, send it to me so I can take a look; I want to know too-------hbw6172@sina.com
I also need information on this topic; why isn’t anyone answering? I hope the moderator can upload the relevant materials!
Please help out; I hope that the experts here can provide me with some information. Thank you
Please give more support; I hope there will be a relevant response!
I’ll support it too; please give it a boost. Experts, step in please:handshake
We first generate urinary formaldehyde, that is, urine reacts with formaldehyde first, and then it is sent to the inlet of the urine pump in the evaporation system for granulation. How are the main materials uploaded? Could you teach me?
Top! :victory: :handshake I hope you’ll upload it soon; you can copy it to your computer first and then paste it here! :)