ACTIVATED CARBON BY TREATMENT OF LIGNITES WITH POTASSIUM AND/OR SODIUM HYDROXIDE OR SALTS AND ADSORPTION THEREWITH

摘要

Activated carbons for the adsorption of vapors, gases and liquids for a variety of applications prepared from a dry lignite or brown coal treated with at least one of potassium hydroxide and/or salts thereof and/or sodium hydroxide or salts thereof which are charred and thereafter activated. These activated carbons have increased hexane working capacity of at least 5.4 %.