The kinetics of liquid-phase hydrogenation of trinitrotoluene and trinitrobenzene on platinum-doped (up to 0.2 wt %) glass fiber woven catalysts ( SiO 2 content of up to 98 wt %, specific surface area of 1-15 m 2 /g) was studied for the first time. Powdered carbon-supported palladium (palladium content of 5 wt %, specific surface area of up to 500 m 2 /g), which is a traditional catalyst for these processes, was used as the reference material.The glass fiber catalysts were found to exhibit a much higher activity than the traditional powder systems. Unexpectedly, these catalysts were found to be exceptionally selective toward successive hydrogenation of nitro groups; in particular, the first nitro group is reduced at a rate an order of magnitude higher than the second nitro group and, in turn, the third nitro group is reduced more slowly than the second one by about an order of magnitude. The hydrogenation on the traditional Pd/C powder system involves synchronously all the nitro groups, i.e., proceeds almost nonselectively.This result opens up a new way for industrial production of complex aromatic nitroamines in a one-step process. This process can be used as an industrial base for utilization of nitroaromatic explosives eliminated from normal use to obtain useful products.The first studies of the mechanism and kinetics of liquid-phase hydrogenation of nitroaromatic compounds on new-generation catalytic systems, namely, glass fiber woven catalysts (GWCs) doped by platinum group metals, were carried out only several years ago [1 − 3]. The simplest monofunctional nitroaromatic compound, nitrobenzene, which is catalytically reduced by hydrogen to aniline, was chosen as the basic investigation object. The studies cited demonstrated that the GWC systems possess a much higher specific catalytic activity than the traditional powder Pd/C catalysts. Physicochemical studies of the glass fiber silicate supports of the active phase led researchers [4-6] to the conclusion that the abnormally high activity of a GWC system is related to the amorphous coordinatively defective state of the glass template, the specific structure of the silanol groups formed in it, and the specific mechanism of attachment of atomic clusters of catalytically active metals to the metastable glass fiber support. The technological advantages of GWCs when used in the catalytic hydrogenation of aromatic nitro compounds were patented [7]. This paper is a next step in the study of the characteristic features of reduction of nitroaromatic compounds on GWC systems. Hydrogenation of polyfunctional aromatic compounds, in particular, the reduction of trinitrotoluene and trinitrobenzene to amines on platinum-activated glass fiber woven catalysts, was chosen for the investigation.The GWC samples were prepared using glass fiber woven materials fabricated as a sparse mesh or a linenwoven cloth as supports. The elementary fiber diameter was 7-9 µ m. These articles were manufactured from traditional silicate glasses in which the content of silicon dioxide varied fro...