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3114888 
Journal Article 
Phase equilibrium in formaldehyde containing multicomponent mixtures:  Experimental results for fluid phase equilibria of (formaldehyde + (water or methanol) + methylal)) and (formaldehyde + water + methanol + methylal) and comparison with predictions 
Kuhnert, C; Albert, M; Breyer, S; Hahnenstein, I; Hasse, H; Maurer, G 
2006 
Yes 
Industrial and Engineering Chemistry Research
ISSN: 0888-5885
EISSN: 1520-5045 
45 
14 
5155-5164 
English 
WOS:000238590400036 
has erratum 1146739 Phase equilibrium in formaldehyde containing multicomponent mixtures: Experimental results for fluid phase equilibria of (formaldehyde plus (water or methanol) plus methylal) and (formaldehyde plus water plus methanol plus methylal) and comparison with predictions (vol 45, pg 5155, 2006)
Methylal (also known as dimethoxymethane and formaldehyde dimethyl acetal) is a side product of the production of polyacetal plastics from formaldehyde, which has to be removed in downstream processing. The design of the separation equipment requires a verified model for the vapor−liquid-phase equilibrium. New experimental results are presented for the vapor−liquid and liquid−liquid equilibrium of the ternary system (formaldehyde + water + methylal) and for the vapor−liquid equilibrium of the ternary system (formaldehyde + methanol + methylal) and of the quaternary system (formaldehyde + water + methanol + methylal). New experimental results and the literature data are compared with prediction results.