PRODUCTION OF NOVEL ACTIVATED CARBON AND ITS EFFECTIVE USE FOR AGRICULTURE AND FORESTRY

摘要

PURPOSE:To produce a novel activated carbon useful as a soil conditioner with good yield at low cost by adding a mixed subsidiary raw material such as paper making residum, vinyl chloride, etc., and a specified chemical to the mixture of saw dust and black trass, then calcining and carbonizing. CONSTITUTION:The principal raw material obtained by mixing saw dust and black trass in the weight ratio of 1:(1-3) is mixed with =30% paper making residum and vinyl chloride as the subsidiary raw material and a chloride of Ca, Mg or Fe and an aq. soln. contg. salt of humic acid as chemicals, and after drying, is calcined at 600-700 deg.C for carbonization.