Experimental Study on Developing White carbon black by Using Wollastonite

摘要

Introduction of White carbon black's property and the technological flow of developing. White carbon black by using Wollastonite and factors that influences it. The conditions of the experimental are that the ratio of hydrochloric acid's volume(hydrochloric acid's concentration is 36%) and the weight of Wollastonite is 1.50L/kg, reactive concentration is 20%, the temperature is 50 centigrade, and reaction time is 30 minutes. Then purify it in order to meet the requirement of rubber reinforcement and the content of SiO{sub}2 is over 90%. The White carbon black coproduct is CaCl{sub}2, the purity of which is 96.76%,and can be used in industry.