THE EFFECT OF ELECTROPHILIC ADDITIVES ON THE RADIOLYTIC PRODUCTS OF ORGANIC CHAIN REACTIONS. Final Report

Technical Report · Tue Dec 31 00:00:00 EST 1963

OSTI ID:4085619

Levins, P L; Heiba, E I; McRitchie, D D

The reactions induced by high energy radiation of isobutane- propylene mixtures, isobutane, and olefins adsorbed on silica gel and silica gel modified with electrophilic additives were studied. The effects of such variables as electron percent coverage, variation in metal oxide, method of incorporating and concentration of ferric oxide, mole ratio of reactants, and choice of olefin were determined. Extensive energy transfer from the support to the adsorbed hydrocarbon was demonstrated for each hydrocarbon studied. Enhanced yields were observed for the propylene alkylation of isobutane on modified silica gels compared with that obtained on silica gel. The alkylation was shown to proceed preferentially by an ionic reaction mechanism. Factors considered important for interpretation of the results include surface chemisorption of the olefin and semiconductor properties of the support. The possibility of utilizing high energy radiation to promote ionic chain reactions with an efficient use of the radiation energy was demonstrated. These results are in distinct contrast with the usual free radical reactions observed in radiation studies of hydrocarbons. (auth)

• Research Organization: Little (Arthur D.) Inc., Cambridge, Mass.
• DOE Contract Number: AT(30-1)-2904
• NSA Number: NSA-18-013836
• OSTI ID: 4085619
• Report Number(s): NYO-10025
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-64
• Country of Publication: United States
• Language: English

Related Subjects

CHEMISTRY
ADSORPTION
ALKANES
BUTANE
CHEMICAL REACTIONS
CHEMICALS
COLLOIDS
CONFIGURATION
DECOMPOSITION
DIAGRAMS
EFFICIENCY
ELECTRONS
ENERGY
ENERGY RANGE
FREE RADICALS
HYDROCARBONS
IONS
IRON OXIDES
ISOMERS
MEASURED VALUES
METALS
MIXING
OXIDES
PROPYLENE
QUANTITY RATIO
RADIATION CHEMISTRY
RADIOLYSIS
SEMICONDUCTORS
SILICON OXIDES
TRANSPORT THEORY
USES
VARIATIONS