Carbon black may occur spontaneous combustion

Carbon black is a material which can spontaneous combustion easily, when the ambient temperature reaches a critical ignition point will occur spontaneous combustion. In the carbon black production process, the external air into the carbon black collection or air supply system, can ignite the flammable exhaust or even explosion. At the beginning, there will be some water and volatile gas escape, to reach the fire temperature, the quality of a sharp reduction in this time in the combustion of oxygen in the release of carbon dioxide.

Different types of different carbon black ignition point is different, mainly with the carbon black density, volatile gas, ash content and structure are tied. However, in general, the ignition temperature of the tank black is about 290 ° C, and the ignition temperature of the furnace carbon black is between 350 ° C and 380 ° C.

So in the process of carbon black production and transportation storage, in addition to good moisture control measures, but also to prevent carbon black natural phenomenon. Such as the collection system do not mix into the air, the packaging temperature should be lower than 80 ℃ and so on.