响应面法探讨氟硅酸制备超细白炭黑工艺对DBP值的影响  

Discuss the Influence of the Preparation Technology by Useing Fluosilicic Acid to Prepare Ultrafine Sillica on the DBP by Response Surface Methodology

作　　者：郑典模[1] 潘鹤政[1] 伍丽萍 周桂明[1] 陈骏驰[1] 彭静红[1] 

机构地区：[1]南昌大学环境与化学工程学院,南昌330031 [2]江西省工业安全工程技术研究中心,南昌330031

出　　处：《硅酸盐通报》2013年第10期2016-2021,共6页Bulletin of the Chinese Ceramic Society

摘　　要：研究以氟硅酸和氨水为原料制备超细白炭黑,采用响应面优化工艺并建立数学模型,探讨氨水的滴加速率、底液量与总氨水体积比、氟硅酸与氨水滴加体积比和反应温度各因素之间相互作用对白炭黑DBP值的影响。确定最佳工艺条件:氨水的滴加速率为3.1 mL/min,底液量与总氨水体积比0.61,氟硅酸与氨水滴加体积比1∶5.75,反应温度75℃,该条件下制得的白炭黑DBP值为3.1300,与预测值3.1276仅有0.0024的误差,证明模型具有较好的拟合度,能够真实地反映各实验因素对DBP值的影响。Taking fluosilicic acid and ammonia as the material to product uhrafine sillica , using the response surface to optimize the process and create a mathematical model, and studied the factors affecting DBP value of silica such as the dropping speed of the aqueous ammonia, the volume ratio of the bottom liquid volume and the total aqueous ammonia, the dropping volume ratio of the fluosilicic acid and the aqueous ammonia and the reaction temperature. The optimum conditions are confirmed as follows： the dropping speed of the aqueous ammonia 3.1 mL/min, the volume ratio of the bottom liquid volume and the total aqueous ammonia is 0.61, the dropping volume ratio of the fluosilicic acid and the aqueous ammonia is 1 ： 5.75, the reaction temperature is 75 ℃, the DBP value of silica is 3. 1300 under the optimum conditions, with the error of 0. 0024 compared with the predict value of 3. 1276. It reveals that the model has better fitting, and can reflect the influence of various experimental factors on DBP value.

关 键 词：响应面 氟硅酸 超细白炭黑 

分 类 号：TQ127[化学工程—无机化工]