6533b835fe1ef96bd129eb46

RESEARCH PRODUCT

Studies of alumina as a support of titanium catalyst for low-pressure ethylene polymerization

Dorota ZelentKrystyna CzajaВArbara Dawidowska

subject

Materials sciencePolymers and PlasticsChemical engineeringchemistryEthylene polymerizationGeneral Chemical EngineeringMaterials Chemistrychemistry.chemical_elementTitaniumCatalysis

description

The effect of alumina treatment with aqueous solutions of hydrochloric acid and ammonium fluoride as well as temperature of its calcination on the activity of Al-Ti/Al2O3 supported organometallic catalyst for ethylene polymerization has been studied. The dependence between the spe­cific surface area of the support and both the kind and concentration of the modifying agent, concentration of OH-groups on Its surface and concentration of active centres with various activities is discussed with reference to the activity of the supported Al-Ti/Al2O3 catalyst. It was demonstrated that there is no simple relationship between the concentration of OH-groups on the support and the activity of the Ti-catalyst.

https://doi.org/10.14314/polimery.1986.389