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利用磷肥副产氟硅酸为原料,采用氨水作为氨解剂制备高补强白炭黑。论述了白炭黑的制备原理,研究了氟硅酸浓度、氨水滴加速率、反应温度、陈化时间对白炭黑比表面积的影响。该方法所得白炭黑比表面积大,产品质量符合行业标准要求,经济效益和环境效益明显。
The use of phosphorus by-product fluorosilicic acid as raw material, the use of ammonia as ammonia agent to prepare high-reinforcing silica. The preparation principle of silica was discussed. The effects of fluorosilicic acid concentration, ammonia water addition rate, reaction temperature and aging time on the specific surface area of silica were studied. The white carbon black obtained by the method has large specific surface area, product quality meets the requirements of the industry standard, and the economic benefits and environmental benefits are obvious.