Ion-exchange molded catalyst and method of its preparation

Details Ion-exchange molded catalyst and method of its preparation Ion-exchange molded catalyst and method of its preparation

1974-11-19

1976-06-22

McCarthy, Helen M.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252436, 260 4254, 260 4255, B01J 3110

Patent

active

039650391

ABSTRACT:
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.

REFERENCES:
patent: 2480821 (1949-09-01), Connell
patent: 2803667 (1957-08-01), Chambers
patent: 2834819 (1958-05-01), D'Alelio
patent: 3898189 (1975-08-01), Bonnaud et al.
chem. Abstracts, 115856w, "Porous Ion Exchange Particles & their Uses as Catalysts in Acid-Catalyzed Reactions," vol. 70 (1969) p. 29.
Chem. Abstracts, 115857x, "Ion-Exchange Resin with Polymer Skeleton Based on Vinyl Monomers", vol. 70 (1969) p. 29.

Affiliated with

Also associated with

Rating

Ion-exchange molded catalyst and method of its preparation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ion-exchange molded catalyst and method of its preparation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ion-exchange molded catalyst and method of its preparation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2286781