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OwnerDonat Nikolaevich Chaplits, Vladimir Pavlovich Kazakov +4inventors
InventorsDonat Nikolaevich Chaplits, Vladimir Pavlovich Kazakov, Emmanuil Gabrielovich Lazariants, Vladimir Filippovich Chebotaev, Mikhail Ivanovich Balashov, Leonid Antonovich Serafimov
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An ion-exchange molded catalyst consisting of a sulfonated copolymer of styrene with divinylbenzene or diisopropenyl benzene and a sulfonated thermoplastic material taken in a proportion of 1-4:1-2 by weight, respectively. The method of preparation of the ion-exchange molded catalyst consists in mixing the copolymer of styrene with divinylbenzene or diisopropenyl benzene and the thermoplastic material in a proportion of 1-4:1-2, by weight respectively. The obtained mixture is molded by extrusion with heating to the melting point of the thermoplastic material and forming molded elements which are treated first with a sulfonating agent at 20.degree. - 100.degree.C, then with water. The catalyst according to the invention can be made in the form of elements of various shapes and sizes. The catalyst has a high mechanical strength (compression strength reaches 200 kg/cm.sup.2), a high catalytic activity and a high heat resistance (can be used at temperatures of up to 130.degree.C). The static exchange capacity of the catalyst reaches 4.25 mg-equiv/g of dry catalyst. The method of preparing the catalyst is distinguished by simplicity and high efficiency.
An ion-exchange molded catalyst consisting of a sulfonated copolymer of styrene with a dialkenyl benzene selected from the group consisting of divinylbenzene and diisopropenyl benzene and of a sulfonated thermoplastic material selected from the group consisting of polyethylene, polypropylene and polyvinylchloride taken in a proportion of 1-4:1-2 by weight respectively, said catalyst having a compression strength from 98 to 200 kg/cm.sup.2 and a static exchange capacity in terms of 0.1N NaOH of from 2.7 to 4.25 mg-equiv/g of catalyst.
A method of preparation of an ion-exchange molded catalyst consisting of a sulfonated copolymer of styrene with a dialkenyl benzene selected from the group consisting of divinylbenzene and diisopropenyl benzene, and a sulfonated thermoplastic material selected from the group consisting of polyethylene, polypropylene and polyvinylchloride taken in a proportion of 1-4:1-2 by weight respectively, said method consisting of mixing a copolymer of styrene with a dialkenyl benzene selected from the group consisting of divinylbenzene and diisopropenyl benzene, and a thermoplastic material in a proportion of 1-4:1-2 by weight respectively;
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