Disclosed are a production method for efficiently controlling a specific surface area of conductive carbon black, and a material delivering device. The production method for efficiently controlling a specific surface area of conductive carbon black includes making acetylene mixed with a hydrocarbon raw material undergo a pyrolysis reaction at 1300 to 1500 C., wherein the hydrocarbon raw material includes one, or a combination of more than one, of hydrocarbon compounds. When acetylene is introduced to undergo a pyrolysis reaction at 1800 C., conductive carbon black is obtained with a specific surface area of generally 80 m.sup.2/g or more. When acetylene is mixed with a hydrocarbon raw material so that the temperature of the pyrolysis reaction is reduced to 1300 to 1500 C., conductive carbon black is obtained with a specific surface area of substantially from 40 to 80 m.sup.2/g by controlling the pyrolysis temperature.

Disclosed herein are systems and methods for reducing the particulate matter content of an exhaust gas from a carbon black process.

Disclosed herein are systems and methods for reducing the particulate matter content of an exhaust gas from a carbon black process.

Suggested is a carbon black composition showing a narrow Aggregate Size Distribution (ASD) characterized by a D.sub.50/D.sub.mode value of about 0.58 to about 0.65 and a Relative Span (D.sub.90D.sub.10)/D.sub.50 of about 0.5 to about 0.8, which is obtainable by means of a modified furnace reactor. The composition shows superior additive performance and allows producing e.g. bus or truck tires with improved wear resistance and reinforcement.

Suggested is a carbon black composition showing a narrow Aggregate Size Distribution (ASD) characterized by a D.sub.50/D.sub.mode value of about 0.58 to about 0.65 and a Relative Span (D.sub.90D.sub.10)/D.sub.50 of about 0.5 to about 0.8, which is obtainable by means of a modified furnace reactor. The composition shows superior additive performance and allows producing e.g. bus or truck tires with improved wear resistance and reinforcement.

Methods for the production of carbon black using an extender fluid(s) are provided as well as methods to control one or more particle properties of carbon black utilizing extender fluids and other techniques.

Methods for the production of carbon black using an extender fluid(s) are provided as well as methods to control one or more particle properties of carbon black utilizing extender fluids and other techniques.

Carbon nanoparticles made in a one step process. A method of making carbon black nanoparticles is described, including adding a hydrocarbon to a heated gas to produce carbon nanoparticles that are less than 1 micron volume equivalent sphere and have an Lc greater than 3.0 nm. Elastomer composites containing such particles are also described.

Disclosed herein are systems and methods for reducing the particulate matter content of an exhaust gas from a carbon black process.

Disclosed herein are systems and methods for reducing the particulate matter content of an exhaust gas from a carbon black process.