Veränderung und Fixierung von Lignin durch Ca-Bentonit

Modification and fixation of lignin by Ca-bentonite Under the influence of Ca-bentonite natural and heavy decomposable lignin was modified to an oily product not easily to dry. A distinct part of lignin is fixed by Ca-bentonite as shown by uv., ir. spectra, carbon content and loss of ignition. These results suggest that clay-lignin complexes may be found mild conditions similar to natural conditions. The altered lignin is probably fixed on the edges of the clay mineral.