Polycinnamic alcohol production formula and its preparation process

The present invention relates to chemical medicine preparation, and is the preparation process of lauromacrogol. The preparation process of the present invention adopts NaOH as catalyst to simplify operation and control of heavy metal content, HAC for neutralization in mild reaction condition to avoid oxidation of phosphoric acid at high temperature, and cloud point measuring method to control polymerization end point. Therefore, the synthesis process of the present invention is reasonable and can ensure stable quality of medicine material product.