Carbon black, method for producing carbon black and use of...

Details Carbon black, method for producing carbon black and use of... Carbon black, method for producing carbon black and use of...

C - Chemistry, Metallurgy

09

C

C09C 1/50 (2006.01) B60C 1/00 (2006.01) C08K 3/04 (2006.01) C08K 9/06 (2006.01) C09C 1/56 (2006.01) C08L 21/00 (2006.01)

Patent

CA 2342928

Carbon black characterized by a STSA surface of between 20 and 180 m2 /g, a 24M4-DBP absorption of between 40 and 140 ml/100 g, a specific BET surface of between 20 and 250 m2 /g, a content of 0.01 to 20 wt. % of silicon, referred to its overall weight, and a tan .delta.0 /tan .delta.60 ratio greater than 3.37-0.0068 STSA is produced by mixing silicon-containing compounds with the carbon black raw materials in the oxidative pyrolysis of the carbon black raw materials and optionally using carbon black oil as fuel. The carbon black can be used as a filler in rubber mixtures, preferably for tires.

Noir de carbone caractérisé par une surface STSA comprise entre 20 et 180 m<2>/g, une absorption 24M4-DBP comprise entre 40 et 140 ml/100g, une surface spécifique BET comprise entre 20 et 250 m<2>/g, une teneur en silicium comprise entre 0,01 et 20 % en poids, par rapport à son poids total, et un rapport tan delta 0/tan delta 60 supérieur à 3,37-0,0068•STSA. L'invention concerne également un procédé de production de ce noir de carbone, selon lequel on mélange des composés renfermant du silicium aux matières premières de noir de carbone, lors de la pyrolyse oxydative desdites matières premières, et l'on utilise de l'huile de noir de carbone comme combustible. Le noir de carbone produit selon l'invention est utilisé de préférence dans des mélanges de caoutchouc pour des pneus.

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