This is a new method for obtaining cellulose for chemical processing
Researchers from Perm National Research Polytechnic University (PNRPU) have developed a new method for obtaining cellulose.
Spruce and fir are traditional substrates for obtaining cellulose, but recently these trees are becoming less and less. Therefore, scientists proposed using birch in the technological process. Birch chips are cooked in autoclaves with sulfite cooking acid. Then the obtained unbleached mass was subjected to bleaching and refining. The resulting cellulose is used in the production of gunpowder, film and photo film, plastics, paints and much more.