石灰窑气碳酸化法制备白炭黑工艺  

Preparation of White Carbon Black with Lime-kiln Gas by Carbonization

作　　者：何凯[1] 陈宏刚[2] 

机构地区：[1]太原理工大学化学化工学院,山西太原030024 [2]中国石油大学华东重质油国家重点实验室,山东东营257061

出　　处：《过程工程学报》2006年第4期554-559,共6页The Chinese Journal of Process Engineering

基　　金：太原市科技启明星计划基金资助项目(编号:0102005)

摘　　要：对电石生产排放的废气-石灰窑气与水玻璃经碳酸化法制备白炭黑的工艺进行了较为系统的实验研究.考察了反应温度、反应时间、原料配比及二氧化碳含量等因素对白炭黑的产率及产品性能(粒度分布、吸油值)的影响.获得了最佳反应条件:反应温度85～95℃、反应时间2.5h、水玻璃与水的体积比1:6、模拟石灰窑气中二氧化碳的浓度为40%.研究结果对制备性能优良的高补强无机填料白炭黑工艺的工业化具有重要的参考价值.The preparation technology of white carbon black （WCB） from water glass and simulative lime-kiln gas is studied systematically and experimentally by carbonization method, in which exhaust gas from production of calcium carbonate is utilized. The experiments are carried out by examining the influences of reaction temperature, reaction time, material ratio, carbon dioxide content on the yield of WCB and product characteristics （average particle diameter of WCB and rate of DBP absorption）. The optimum experimental conditions have been gained as follows： reaction temperature 85-95 ℃, reaction time 2.5 h, volumetric ratio of water glass to water 1：6, and carbon dioxide content of simulative lime-kiln gas 40%. The present results would offer important reference for industrialisation of preparation technology of white carbon black as inorganic filling agent with fine capability and high compensation.

关 键 词：碳酸化法 白炭黑 石灰窑气 工艺参数 

分 类 号：TQ170.1[化学工程—硅酸盐工业]