

Catalyst «titanium silicalite in a polymer matrix» for joint production of catechol and hydroquinone
Abstract
The paper proposes a method for a synthesis of new catalytic systems based on titanium silicalite (TS-1) for liquid phase oxidation of phenol by hydrogen peroxide. The systems provide a production of catechol and hydroquinone (1:1) with a yield of 90–92 % and allow establishing a continuous process instead of the conventional technology with periodic discharges of powdered catalyst (titanium silicalite). The method is based on the encapsulation of TS-1 in a polymer matrix (polypropylene, polyethylene, polystyrene, or their copolymers). With TS-1/polypropylene and TS-1/polystyrene used as examples, it was shown that the nature of the polymer matrix affects the catalytic properties of the system. The catalytic properties of TS-1/polypropylene and TS-1/polystyrene were compared with the properties of a commercial catalyst available from EniChem. The use of TS-1/polypropylene was shown to increase the productivity of current technologies and to significantly reduce the energy costs.
About the Authors
S. M. DanovRussian Federation
S. V. Orekhov
Russian Federation
A. E. Fedosov
Russian Federation
M. E. Fedosova
Russian Federation
A. I. Shishkin
Russian Federation
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Review
For citations:
Danov S.M., Orekhov S.V., Fedosov A.E., Fedosova M.E., Shishkin A.I. Catalyst «titanium silicalite in a polymer matrix» for joint production of catechol and hydroquinone. Kataliz v promyshlennosti. 2014;(4):39-44. (In Russ.)