Method for deciding the reactivity and soot index of carbon prod

Chemistry: analytical and immunological testing – Rate of reaction determination

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436145, 436160, G01N 3112

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active

054767938

ABSTRACT:
Air reactivity, CO.sub.2 and soot index of a carbon product is determined. The air reactivity and CO.sub.2 reactivity of a sample of a carbon product are determined on the basis of the same test of the same sample. Air reactivity is analyzed first and, when such analysis is finished, CO.sub.2 reactivity is automatically analyzed on the same sample. The soot index is determined by collecting and weighing soot dust. A vertical tube furnace includes an inlet for the introduction of gas, and a sample holder which is freely suspended from a weighing device and extends down into the tube furnace. The sample holder is provided with one or more thermocouples for registering temperature of a carbon product.

REFERENCES:
patent: 4051224 (1977-09-01), Duclaux et al.
P. J. Rhedey, Light Metals, 1982, pp. 713-725, "Carbon Reactivity and Aluminum Reduction Cell Anodes".
G. J. Houston et al., Light Metals, 1985, pp. 885-899, "Reactivity Testing of Anode Carbon Materials".
T. Muftuoglu et al., Light Metals, 1987, pp. 471-476, "Reactivity and Electrolytic Consumption of Anode Carbon With various Additives".

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