3-hydroxy propanal, β- propiolactone, β- propiolactone oligomers, esters of 3-hydroxy propanoic acid or a method of preparing a 1,3-diol by vapor phase hydrogenation of a mixture thereof,

摘要

I described (57) a method for producing a [summary] propane-1,3-diol. The presence of a heterogeneous hydrogenation catalyst in the hydrogenation zone, the hydrogen-containing gas, 3-hydroxy propanal, β- propiolactone, oligomers β- propiolactone, this method, the 3-hydroxy propanoic acid esters, and being exposed to hydrogenation conditions the feed mixture of steam and a feed selected from a mixture of two or more thereof, and that recovering a reaction product comprising propane-1,3-diol.