| 摘要 |
PURPOSE: A carbon black that is more easily and economically dispersed and processed for industrial and commercial applications, especially in the production of rubber-profile mixtures, and processes for making the above-mentioned forms of carbon black and products or compositions comprising such carbon blacks are provided. CONSTITUTION: The carbon black has a CTAB surface area from about 10 to 35 m/g and a DBP absorption from about 40 to 180 ml/100 g, wherein the ΔD50 value of the aggregate-size distribution is at least about 340 nm. In a process for producing carbon black having: a CTAB surface area from about 10 to 35 m/g and a DBP absorption from about 40 to 180 ml/100 g, wherein the ΔD50 value of the aggregate-size distribution is at least about 340 nm, the process comprises generating a stream of hot waste gas in the combustion zone of a furnace-black reactor having a combustion zone, a constriction, a reaction zone and a termination zone, channeling the hot waste gas from the combustion zone through the constriction into the reaction zone, mixing one or more liquid and one or more gaseous carbon-black raw material(s) into the stream of hot waste in the constriction for a time and under conditions effective for the formation of carbon black, spraying water in the termination zone to stop the formation of carbon black and recovering the carbon black.
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