our company is a born high-tech enterprise which specialize in producing Pentaerythritol(PE) and Calcium ***** content of PE has been increased from 90% to 95% compared with the traditional method. Accordingly the hydroxy content has been increased from less then 47% to more than 48%, and the appearance, ash and colour also improved. Especially to Calcium Formate, the new technology has not only reduced the consuming of energy and material, lessened the cost, but also improved the quality