The process stage of C3H6O2 in the polyoxymethylene production process
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I’m sorry for the trouble, but I’m facing a difficulty right now: in the production process of polyoxymethylene, at which specific stage does C3H6O2 (dioxolane) appear? What is its purpose? I hope the experts here can help~ Thank you:handshake
Copolymerized formaldehyde is obtained by copolymerizing triformaldehyde and pentaerythritol; therefore, pentaerythritol is an important intermediate in the production of copolymerized formaldehyde. It is produced from formaldehyde and ethylene glycol under the catalysis of sulfuric acid. The production of copolymerized formaldehyde generally involves the following steps (using methanol as the raw material): formaldehyde synthesis step – either the silver method or the iron-molybdenum method can be used; trioxane formation step; dioxolane formation step; and polyformaldehyde formation step
Study*Study*:lol :lol :lol :lol
The monomers for copolymerized polyoxymethylene are dioxolane and trioxymethylene; therefore, dioxolane is the second monomer in polyoxymethylene production. There are specialized units for producing dioxolane in polyoxymethylene manufacturing processes. It is also possible to produce polyoxymethylene without dioxolane, resulting in homopolymerized polyoxymethylene. DuPont, based in Zhangjiagang, is an example of a company that produces such homopolymerized polyoxymethylene. There are significant differences between homopolymerized polyoxymethylene and copolymerized polyoxymethylene in terms of their properties; more details can be found online
Learning*Ha. I happen to have a project related to polyoxymethylene right now. Thank you to the original poster for sharing this.
Why is this version always the old one? I hope those who work in this field can push this version to the top
Does anyone know how pentaerythritol is synthesized? What is the synthesis process? I hope the experts here can share their insights
Dioxolane is produced by the hemipolymerization of formaldehyde and ethylene glycol
I need help from experts: In an entire polyoxymethylene production plant, which parts and units are the key ones, namely those with high pressure and temperature? What kind of accidents are most likely to occur during the entire production process of copolymerized formaldehyde? What measures should be taken?
To correct the mistake: DuPont in Zhangjiagang produces copolymerized formaldehyde.