FIELD: chemistry.
SUBSTANCE: method is carried out by introducing and transporting unstable additives or mixtures thereof in the transport pipe, in which the main flow of molten material flows. Herewith the additives or a mixture thereof are introduced into the pipe section delimited by the main flow in accordance with one of the following alternative methods. In the longitudinal direction with respect to the direction of the main flow of the molten material, or in the transverse direction with respect to the direction of the main flow of the molten substance, or a combination of longitudinal and transverse methods. Thus forming a flow, in which unstable additives are separated from the main flow of the molten substance.
EFFECT: reducing the decomposition of unstable additives when they are introduced into the molten mass.
22 cl, 14 dwg, 14 ex
