Catalytic properties of lignosulfonates in the dehydration reaction of tert-butyl alcohol.

The article discusses the possibility of using technical lignosulfonates as a catalyst for the dehydration reaction of tert-butyl alcohol. It is shown that the initial lignosulfonate does not exhibit catalytic properties. Lignosulfonate modified with sulfuric acid catalyzes the reaction, but due to thermochemical transformations it loses its activity. The yield of isobutylene is 17%. [ABSTRACT FROM AUTHOR]