FREMGANGSM TE OG APPARAT FOR FREMSTILLING AV KALSIU, FERROSILICIUM ELLER KALSIUMSILICIUM.

摘要

According to the invention, there are provided improved apparatus and process for preparing high temperature reaction products in an electric furnace. Into the furnace, a combustible material and an oxygen-containing gas are fed by means of a suction-type water-cooled lance. The discharge end of the lance in the furnace is opened at a specific position within the unreacted material deposition zone in the furnace so that incomplete combustion is effected, thereby producing useful by-product gases. Cooling water is recirculated by a suction pump interposed at a position downstream of the lance outlet.