Process for the manufacture of battery carbon black

Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon

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429232, C01B 3102, C09C 148

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043672086

ABSTRACT:
A process useful for the production of a carbon black useful as an ingredient in dry cell battery compositions is disclosed which comprises heating a carbon black feedstock having a dibutylphalate absorption (DBP) ranging from 200 to 250 cc/100 g, nitrogen surface area ranging from about 30 to about 60 m.sup.2 /g, an average stacking height (L.sub.c) of ordered graphitic layer segments ranging from about 1.1 to about 1.5 nm, and a wide aggregate size distribution with a range of measured aggregate volume from about 5.times.10.sup.4 to about 1.times.10.sup.9 nm.sup.3, a geometric mean aggregate volume (Log Vg, nm.sup.3) of about 6.2 to about 7.5, and geometric standard deviation (for Log Vg, nm.sup.3) of about 0.7 to about 1.0. This feedstock is heated to a temperature ranging from 1400.degree. C. to 2400.degree. C. under an inert atmosphere, thereby producing a carbon black having a DBP ranging from about 210 to about 270 cc/100 g, essentially the same nitrogen surface area, essentially the same aggregate volume and standard deviation, and an L.sub.c ranging from about 1.6 to about 3.7 nm.

REFERENCES:
Kotlensky et al. Proceedings Fourth Conference for Carbon, 1960, p. 423.

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