The solution to global environmental problems is to reduce the anthropogenic impact on the environment through the utilization of carbon dioxide emissions and the use of industrial waste to produce new materials and products. Technogenic wastes of the metallurgical industry are considered as raw materials for the production of building materials and products with the ability to bind gaseous CO2. The analysis and selection of waste from metallurgical enterprises located in the Central and North-Western Federal Districts of the Russian Federation is carried out. The results of studies of environmental friendliness, chemical, material and phase-mineralogical compositions of technogenic metallurgy waste, their hydration activity and ability to bind carbon dioxide are presented. It is shown that the most promising raw materials for the production of building materials and products are steelmaking slags and nepheline sludge from the processing of alumina raw materials. The greatest ability to absorb and bind CO2 is distinguished by nepheline sludge (up to 12% CO2 by weight of sludge), steelmaking (converter and electric steelmaking) slags (up to 8.8 and 9.2% CO2 by weight of slag, respectively). The compressive strength of the prototypes on these types of slags depends on the degree of their carbonation and reaches values of 100 MPa or more after 6 hours of forced carbonation. It is concluded that the material obtained from man-made metallurgical waste by carbonation hardening technology can be used as a matrix substance for various building materials and products.