This review considers heterogeneous catalysts for the Prins reaction. The potential of the industrial implementation of processes based on this reaction has been shown. The catalyst properties (textural and acidic) that have the greatest effect on the product composition are discussed. The most promising types of catalysts for preparing unsaturated alcohols and diene hydrocarbons are noted.

This review provides an analysis of recent publications focused on the promising methods for producing various valuable chemicals from acetylene. In particular, it discusses the main reactions of acetylene that produce large-tonnage, low-tonnage, and special-purpose chemicals. Furthermore, the paper highlights the most important approaches to the design of catalysts and formulates priority lines for the future development of acetylene chemistry.

The fast catalytic pyrolysis of polystyrene in the hydrocarbon medium (light and heavy cycle oil) over zeolite catalysts at 450–550 °C was investigated. The influence of reaction conditions (medium, temperature, vapor residence time, polystyrene concentration) on polymer conversion and product distribution was studied. It was found that the polymer conversion is close to 100%, while ethylbenzene, benzene, and toluene are the main products of its transformation. The maximum yield of ethylbenzene (80%) was achieved at 550 °C, vapor residence time 1–2 s, polystyrene concentration 10%, and heavy cycle oil as the medium. The influence of zeolite topology on product distribution was explored. The possible mechanism of polystyrene pyrolysis was proposed.

This review analyzes the current state of the art in the direct synthesis ofalkoxysilanes (DSA). The main approaches, challenges and prospects of this process are highlighted. The plausible reaction mechanism is considered, as well as factors that have a significant influence on the process, including temperature, type and concentration of the catalyst, promoter additives, the method of carrying out the process, etc.The bibliography includes 232 references.

Conversion of oxygenates to aromatic hydrocarbons in the syngas medium in the presence of a commercial zeolite-containing catalyst was studied. The influence of pressure on aromatization of dimethyl...