Аннотация
This article shows that the use of technogenic waste as raw materials in the production of complex fertilizers not only improves the environmental situation of the region, but also allows you to create economically efficient production. In the non-ferrous metallurgy industries of our country, hundreds of millions of tons of industrial waste containing elements such as copper, zinc, magnesium, nickel, manganese, etc. have accumulated in the form of slag, sludge, etc. Every year, more than ten thousand tons of waste are added to these wastes. In this regard, research has been carried out on the processing of industrial waste.