The paper presents an analysis of literature data on the catalysts employed in the industrial processes of propylene conversion to the most bulky oxygen-containing products – propylene oxide (PO), acrylonitrile (AN), acrolein and n-/isobutyric aldehydes. Main trends and prospects in their development are considered. Catalytic systems for the promising processes of their production using more inexpensive propane or alternative oxidants are also analyzed; their characteristics are estimated in terms of acceptability for future commercialization.

To reveal the effect of the dopant doubly charged ion size on the catalytic properties, samples of potassium polyferrites of β′′-alumina type with the composition K₂Fe^II_1-q M_qFe^III ₁₀O₁₇, where M = Mg, Zn, and K_2–2qFe^IIMqFe^III ₁₀O₁₇, where M = Ca, Sr, and q = 0.4, were synthesized. The mechanism of action of the introduced doubly charged cations on the activity, selectivity and corrosion resistance of potassium β′′-polyferrite was elucidated. It was shown for the first time that the size of doubly charged cations determines their position in the structure of β′′-polyferrite: they either enter the spinel-like moiety and substitute Fe²⁺ ions, or substitute potassium in the intermoiety space. The introduction of Mg²⁺ and Zn²⁺ ions dramatically reduces the catalytic activity and selectivity of β′′-polyferrite. The application of such additives is undesirable. Small amounts of Ca²⁺ and Sr²⁺ cations significantly improve the corrosion resistance of the catalyst by decreasing the mobility of potassium ions within the cation-conducting layer.

The possibility to use microchannel flow reactors for obtaining kinetic and technological parameters of the synthesis of 1-butyl-3-methylimidazolium chloride (BMIMCl) ionic liquid was demonstrated for the reaction of 1-methylimidazole (MIm) with 1-chlorobutane in the absence of solvents. BMIMCl was produced with high selectivity and specific output in a microchannel flow reactor at temperatures 120–180 °C and contact times 2-45 min at a pressure of 20 bar. The positive result is obtained due to the laminar profile of the flow and a uniform distribution of the reagents’ concentration over the microchannel cross-section. Investigation of the process kinetics in a microchannel flow reactor made it possible to reveal that the reaction moves to the diffusion resistance mode at a temperature above 150 °C. The kinetic data obtained for the BMIMCl synthesis were used to develop methods for the production of 1-ethyl-3-methylimidazolium and 1-hexyl-3-methylimidazolium chlorides (EMIMCl and HMIMCl, respectively) under the conditions of a microchannel flow reactor. The approach suggested in this paper is of interest for the development of flow and batch setups for a small-tonnage production of dialkylimidazolium, ammonium and pyridinium salts by quaternization of the corresponding alkyl chlorides and nitrogen-containing bases.

The catalytic system N-hydroxyphthalimide – Fe(III) salt was used for the first time in aerobic oxidation of alkylbenzenes to the corresponding hydroperoxides. Microquantities of Fe(асас)₃ or Fe(benz)₃ were shown to enhance the efficiency of N-hydroxyphthalimide as the radical catalyst; as a result, hydroperoxidation of ethylbenzene and isopropylbenzene occurs at a temperature of 90–100 and 60 °С, respectively, instead of 150–120 °С, which is a typical temperature range of noncatalytic synthesis. When conversion of the substrates is 10–20 %, selectivity to hydroperoxides is retained at a level of 90–95 %. A further successful testing of the obtained solutions in the MoO₃/SiO₂-catalyzed epoxidation of olefins without a preliminary removal of the catalytic system components demonstrates that such low-temperature synthesis of hydroperoxides is promising as the initial step in epoxidation of olefins.

As a catalyst for studying the conversion of hydrocarbons contained in catalytic cracking gases, a modified Ni, Co, Cr industrial OMNIKAT-210P zeolite-containing catalyst was used. The purpose of the research is to obtain a high-octane component of gasoline. The deposition of metals was carried out on nano-sized particles of a zeolite-containing catalyst. Particle size was at the level of (5÷10)·10^–9 m. The particle size allows you to evenly apply the metals Ni, Cr, Co on the surface of the nanoparticles. Then the particles are molded in the form of balls with a size of 2–3 mm and subjected to drying (120 °С) and calcining 450–500 °С. The yield of liquid products is at the level of 48.3–30.3 % of the mass.

Experimental and mathematical methods were used to obtain the optimal parameters of peroxide delignification of larch in the presence of MnSO4 catalyst, which provide a high yield of cellulose (44.3 wt.%) with a low content of residual lignin: temperature 100 °C, content of H₂O₂ 6 wt.%, CH₃COOH 25 wt.%, hydromodulus 15, and duration 3 h. The cellulose produced under optimal conditions had the following chemical composition: cellulose 92.7 wt.%, lignin 0.6 wt.%, and hemicellulose 5.7 wt.%. IR spectroscopy and XRD studies revealed that the structure of cellulose produced from larch is similar to that of industrial microcrystalline cellulose. The proposed catalytic method allows obtaining larch-derived cellulose with a minimum content of lignin under mild conditions in a single step with a high yield, crystallinity 0.8 and crystallite size 3.0 nm.