Analysis of Separation of Water-methanol- Formaldehyde Mixture
نویسنده
چکیده
The vacuum distillation of methanol from aqueous formaldehyde solution is an important step in the production of formaldehyde by silver process. In this work the separation of this reactive threecomponent mixture is discussed. Physico-chemical phase equilibrium model proposed by Maurer was used in order to investigate the influence of some operating parameters on the performance of the column. Overall column efficiency was determined and compared with the efficiencies obtained from hydrodynamic conditions. The residence times of liquid on actual trays were compared with reaction times of most important chemical reactions in aqueous and methanolic formaldehyde solutions.
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