A PROCESS RELATING TO THE PRODUCTION OF ALPHA-NAPHTHALDEHYDE FROM ALPHA-METHYLNAPHTHALENE, A CONSTITUENT OF TAR OILS OBTAINED BY BOTH HIGH AND LOW TEMPERATURE CARBONIZATION.E

摘要

A vertical shaft kiln comprising a feeder for feeding green nodules into a conical drying and sintering zone with a chimney for flue gases, a cooling zone, a rotary discharging grate, and a discharge chute, characterised in that the conical drying and sintering zone has an inclination between 5-10 from the vertical preferably 8