Production of carbon blacks

Details Production of carbon blacks Production of carbon blacks

C - Chemistry, Metallurgy

09

C

C09C 1/50 (2006.01)

Patent

CA 2100350

A multi-staged process for preparing carbon blacks having lower-than-normal structure at a given surface area, and lower than normal surface area at a given overall combustion level. The process is carried out by adding auxiliary hydrocarbon 70 or 75 or 76 to the reaction zone of the multistaged carbon forming process and adjusting the primary combustion and overall combustion so that the SSI of the process is less than zero.

Procédé à étages multiples pour préparer du noir de carbone possédant une structure inférieure à la normale, pour une aire surfacique donnée, et une aire surfacique inférieure à la normale à un niveau global donné de combustion. Le procédé est mis en oeuvre avec addition d'hydrocarbures auxiliaires 70 ou 75 ou 76 à la zone de réaction du procédé de formation de noir de carbone à étages multiples, et ajustement de la combustion primaire et de la combustion globale, de telle façon que le SSI (indice de sensibilité de la structure) du procédé soit inférieur à zéro.

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