Hubei Sanli Fengxiang Technology Blog

1,3-dioxane ring preparation process is concentrated formaldehyde and ethylene glycol with concentrated sulfuric acid as a catalyst in the reactor at 90 ~ 110 ℃ under atmospheric pressure reaction, and then distilled from the top of the distillation column 70 ~ 74 ℃ azeotrope, salted out by sodium chloride, solid alkali drying, re-distillation of the reboil and light bulb after removal of products. If you need to prepare 1,3-dioxetane, you can contact us, we have  1,3-dioxane plant , and easy to operate, safe and reliable.

The traditional  1,3-dioxetane production process , get the products from paraformaldehyde and ethylene glycol reaction. Paraformaldehyde and ethylene glycol were fed into a reaction kettle at a molar ratio of 1: 1.25, and subjected to atmospheric pressure reaction at 90 to 110°C with a strong acid macroporous cation exchange resin as a catalyst. Then, 70 to 74℃ azeotropes were distilled off from the top of the distillation column, after salting out and dehydrated over anhydrous calcium chloride, followed by distillation and purification, extract 71 ~ 74℃ fractions, make the water off to 200 ppm with molecular sieve, we can get the product.    

The dioxetane is the second monomer of the paraformaldehyde and is copolymerized with the proportion of the paraformaldehyde at a ratio of 95: 5. At the same time, the dioxane is also a good organic solvent and can dissolve the oil, dye, cellulose derivative, a variety of polymers, used for the production of coatings, adhesives; can also be trichloroethane stabilizer, photographic liquid, developer components. In recent years, the application of dioxane in various fields has been expanding. We have  1,3-dioxolane plant  and supply  1,3-dioxolane production process .