Natural pulping

The natural pulping process is a process for the production of cellulose from renewable lignocelluloses such as B. wood , straw or bamboo , developed by the winner of the 1995 federal chemistry competition, Sven Siegle.

The essential core of the process is cooking with formic acid and hydrogen peroxide . The lignin is broken down and released through this boiling process , thus exposing the cellulose . The formic acid can then be recovered again via distillation steps.

The advantages of this method are that it is environmentally friendly and particularly suitable for annual plants .

Siegle founded Natural Pulping AG together with his father Erich in order to bring the developed process to market maturity. In 2011 the company had to file for bankruptcy and sell the developed technology to interested parties in China in 2012.