Control of carbon black production

Details Control of carbon black production Control of carbon black production

1976-10-01

1978-06-06

Vertiz, O. R.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

423DIG5, 23230A, 23253A, C01B 3102, C09C 148, G01N 3100, G01N 2902

Patent

active

040937054

ABSTRACT:
Carbon black is produced by heating a carbonaceous feed material to an elevated temperature to decompose the feed material to produce carbon black. A sample of the effluent from the reactor is passed as a suspension of carbon black particles in a gas into an optical cell. A beam of light is directed into the cell, and scattered light is measured at two different locations. A signal representative of the ratio of the two measured scattered light intensities is employed to control the introduction into the reactor of an alkali metal which controls the structure of the carbon black produced.

REFERENCES:
patent: 2897247 (1959-07-01), Marak
patent: 3010794 (1961-11-01), Friaut et al.
patent: 3790286 (1974-02-01), Kraus
patent: 3993447 (1976-11-01), Buss et al.

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