| 摘要 |
FIELD: organic synthesis catalysts. ^ SUBSTANCE: invention relates to methods of preparing catalysts based on sulfurized styrene/divinylbenzene copolymer and thermoplastic polymer material, which are used in processes for preparing alkyl tert-alkyl ethers, hydration of olefins, dehydration of alcohols, preparation of esters, and the like. Invention provides molded ionite catalyst consisted of sulfurized styrene/divinylbenzene copolymer in the form of mixture of powdered copolymers with macroporous and gel structure and, as thermoplastic material, propylene polymers and propylene/ethylene copolymers. Preparation of catalyst is accomplished by extrusion at temperature of heating extruder cylinder 140-200°C and temperature of forming head equal to temperature of the last heated zone of heating cylinder. ^ EFFECT: increased catalytic activity. ^ 10 cl, 3 tbl, 15 ex |
