The direct conversion of urea and methanol from Shanxi Coalification to the new technology for the construction of the same scale is one-third of the current industrial oxidative carbonylation technology, half of the industrial transesterification technology, and the production of dimethyl carbonate. The cost can be less than 4,000 yuan / ton, with good economic benefits.
The catalyst of this project has high reactivity, good selectivity, long service life, scientific and reasonable preparation technology, simple production process; direct synthesis of dimethyl carbonate from urea and methanol to separate and integrate new processes, not only the reaction conversion rate and product The selectivity is further improved, and the process flow is simplified, the product quality is improved, the product purification technology is simple and easy, the purity of dimethyl carbonate can reach 99.5% or more, and no harmful impurities such as halogen are contained. At present, Shandong Taian is using this technology to build an industrial demonstration plant of 5,000 tons/year.
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