Pentaerythritol

Pentaerythritol is a finely grained crystalline material, which is used predominantly in the manufacture of alkyd resins. Pentaerythritol is synthesised from Formaldehyde and Acetaldehyde in liquid reaction phase with the aid of an alkaline catalyst. In contrast to conventional batch processes, Meissner offers a fully continuous process, which allows the precise control of the reaction conditions in the synthesis section, and through this for example the adjustment of the amount of Di-Pentaerythritol, being a valuable by-product, in the synthesis solution. By using Soda Lye as catalyst, and by carrying out the individual partial reactions in separated and specially designed reactors, the formation of undesired by-products is minimized. By these means, and by using a continuously operated crystallisation section for product separation, which works extremely efficient by means of skilful internal recycling, very favourable consumption figures and excellent product qualities can be achieved.