Case study involving the switch from mag-chrome brick to monolithic linings in a rotary lead furnace

A secondary lead operation that reclaims lead, tin and antimony via pyro metallurgical refining in a rotary kiln switched from a conventional refractory mag-chrome brick lining to monolithic castable lining. This study documents the journey from slag cup testing candidate materials to field installation, operation, and results. Ultimately, an alumina-magnesia low cement, low silica castable performed better than a mag-chrome brick.


Bryan Nelson Technical Services, Allied Mineral Products, United States

Bryan Nelson is a Ceramic Engineer, having attended Missouri Science & Technology from 1977-1981. He has spent much of his career at a North American Refractories company doing research, technical services and marketing in the Nonferrous Metals Market. He has also been involved in National Refractories heading up the Nonferrous Metals Group. Since 2012 he has worked for Allied Mineral Products in sales and is now Technical Manager – Nonferrous Metals.
Bryan is the inventor of porous plug technology for injecting various gases in aluminum and copper (the original brand name was the AL CLean System). He is the holder of a joint patent on New Carbon Bake Brick Technology.