| 摘要 |
<p>Carbon black having cetyltrimethylammonium bromide (CTAB) surface area of 20-49 m 2>/g, compressed oil absorption number (COAN) of greater than 90 ml/100 g and a sum of oil absorption number (OAN) and COAN of greater than 235 ml/100 g, is claimed. Independent claims are included for: (1) preparation of the carbon black comprising in a furnace reactor containing, along the reactor axis of a combustion zone, a reaction zone and a shear zone, generating a stream of hot exhaust gas in the hot combustion zone by burning a fuel in an oxygen-containing gas and allowing the exhaust gas from the combustion zone to flow into the reaction zone without restriction and then into the shear zone, mixing a carbon black raw material into the hot exhaust gas in the reaction zone and stopping the formation of carbon black in a termination zone by spraying water, where radially 20-58 wt.% of the carbon black raw material is added in the first third of the reaction zone and the remaining amount of carbon black raw material is injected at at least one other position in the reactor; and (2) a rubber mixture comprising at least a rubber and the carbon black..</p> |
