Surface modification dry modification of silica - The dry modification
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The dry modification is to use the dry white carbon black and the modifier steam to contact the reaction under the high temperature condition of the reactor. At present, the modified fumed silica in the developed countries adopts a dry process. The main feature of the method is that the process is simple, the post-treatment process is few, the modification process is connected with the gas phase white carbon black production process, and it is easy to scale production. However, its requirements for equipment are high, the consumption of modifiers is large, and the cost is high.
