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- W1534443378 abstract "Results from in situ electron spin resonance (ESR) studies of the thermal interaction between carbon black and various salts and the effect of CO/sub 2/ gasification conditions are reported. The ESR technique has also been used to provide information on changes in the electrical conductivity of a sample that may relate to the mechanisms of the thermal and gasification reactions. In studies involving the thermal interaction between a series of potassium halide-carbon black mixtures (with a K/sub 2/CO/sub 3/-carbon black and CaO-carbon black mixtures for comparison), the free radical concentrations uncorrected for Curie's law were essentially independent of both the measured temperature and the type of salt. The effect on line width of the ESR spectra and the magnitude of the irreversible effects for the salts decreased according to the order: KBr approx. = KCl approx. = KI > K/sub 2/CO/sub 3/ approx. = KF > CaO. The electrical conductivity parameter generally increased with temperature and was almost independent of the type of salt in the mixture. Very small or no changes were noted in line width, free radical concentration, or electrical conductivity when carbon black alone or in combination with potassium halides or with CaO were exposed to CO/submore » 2/ gasification conditions at 850/sup 0/K. Mechanisms are proposed that explain the observed phenomena. (BLM)« less" @default.
- W1534443378 created "2016-06-24" @default.
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- W1534443378 date "1983-01-01" @default.
- W1534443378 modified "2023-09-24" @default.
- W1534443378 title "Effects of catalysts and CO/sub 2/ gasification on the ESR of carbon black. Part 2" @default.
- W1534443378 hasPublicationYear "1983" @default.
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