Paper acidification is the most important factor affecting the preservation life of documents. The National Library of Ancient Books has been committed to solving the problem of paper acidification since 1981.

The deacidification process uses magnesium oxide, which is often used as a flame retardant material in the industry, as a deacidifier, and perfluoroalkanes commonly used as fire extinguishing agents as solvents. The intelligent experimental center of literature deacidified protection integrating system integration, intelligent control and remote management can realize large-scale deacidization at the level of 100 kilograms at one time.