The book is devoted to solving the problems of using industrial waste containing aluminum and silicon, as well as the integration of metallurgical processes and coal combustion to obtain alumina, sodium aluminate and silicate, and other useful products. The book generalized the experience of scientific and industrial activity of the author in the field of alumina production in the second half of the 20th century. The book consists of four chapters and an attachment. The chapters converse the issues of improving the methods of producing alumina and byproducts, processing coal ash and integration of coal combustion and ash and red mud treatment. Attachment contains proposals on the establishment of an integrated industrial complex. The book is intended for specialists in the field of industrial power engineering, metallurgy, as well as environmentalists and businessmen.