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《Chemical Engineering & Equipment》 2007-04
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Preparation of"ultrafine"white carbon black by impinging stream reaction-precipitation

Zhou Yuxin Yu Xuping WU Yuan (School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Hubei Key Lab of Novel Reactor & Green Chemical Technology,Wuhan 430074,China)  
White carbon black was prepared by reaction-precipitation in the submerged circulative impinging stream reactor,with commercial sul- furic acid and sodium silicate solution as the the raw materials.The influences of various factors on particle size of the product were studied,and the ap- propriate processing conditions were determined as follows:the reaction temperature is 40℃,the concentration of silica in sodium silicate solution 35kg/m~3,the rotary speed of propellers 1000 rpm,and the concentration of H2SO_4 9 mol/L.The average diameter of the product prepared under the optimal conditions was measured by FAM particle-measuring instrument to be 2.1 m.
【Fund】: 国家自然科学基金(No29276260,20176043)资助项目。
【CateGory Index】: TQ127.2
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