FERRITE CATALYST FOR A SYNTHESIS OF STYRENE AND A PROCESS FOR THE MANUFACTURE THEREOF
FERRITE CATALYST FOR A SYNTHESIS OF STYRENE AND A PROCESS FOR THE MANUFACTURE THEREOF
The invention provides a ferrite catalyst for synthesis of styrene, comprising potassium ferrite at the level of 80-99.97% and additives selected from the group comprising MgO, Al2O3, TiO2, Cr2O3, MnO2, CuO, ZrO2, CeO2, individually or as a mixture, at the level of 0,03-20% by weight. The catalyst comprises in contact with each other at least two active ferrite phases, one of which only is doped, the doped phase being the potassium-low phase, and the undoped phase being the potassium-rich phase.
Styrene is today one of the basic raw materials in the polymer industry.It is used for polystyrene, styrene copolymers, synthetic rubber and butadiene-styrene resins preparation. It is also a substrate in many organic syntheses. Over 90% of world production of styrene is obtainedby catalytic dehydrogenation of ethylbenzene. The catalytic process is conducted with a large excess of water vapor at atmospheric pressure in the temperature range 550-650C. Severe process conditions cause gradual deact
Sale, License agreement
Inventor: SOJKA, Zbigniew | BIENIASZ, Weronika | SERAFIN, Irmina | KOTARBA, Andrzej
Priority Number: WO2010151158A1
IPC Current: B01J0023745 | B01J002378 | B01J002383 | B01J002386 | C07C0005333
Assignee Applicant: Uniwersytet Jagiellonski
Title: FERRITE CATALYST FOR A SYNTHESIS OF STYRENE AND A PROCESS FOR THE MANUFACTURE THEREOF | CATALYSEUR À BASE DE FERRITE UTILISÉ POUR LA SYNTHÈSE DE STYRÈNE ET PROCÉDÉ DE PRODUCTION DE CE DERNIER
Usefulness: FERRITE CATALYST FOR A SYNTHESIS OF STYRENE AND A PROCESS FOR THE MANUFACTURE THEREOF | CATALYSEUR À BASE DE FERRITE UTILISÉ POUR LA SYNTHÈSE DE STYRÈNE ET PROCÉDÉ DE PRODUCTION DE CE DERNIER
Summary: The ferrite catalyst is useful for the synthesis of styrene (claimed).
Novelty: Ferrite catalyst doped with potassium, useful for styrene synthesis, comprises potassium ferrites and additives comprising e.g. magnesium oxide and copper oxide, where catalyst comprises two active ferrite phases in contact with each other
化工/材料
化工/材料應用
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