干法造粒炉黑臭氧氧化流化床技术的开发(Ⅱ)热态间歇反应

DEVELOPMENT ON OXIDATION OF DRY GRANULATED FURNACE BLACK BY OZONE IN FLUIDIZED BEDS PART(Ⅱ) THERMAL INTERMITTENT REACTION

在热态间歇状态下，考察气流速度、臭氧浓度、反应温度、干法炉黑静床高度及干法炉黑在流化床内的反应时间等因素对干法炉黑臭氧氧化深度即炉黑ｐＨ值的影响，以确定适宜的干法炉黑臭氧氧化的工艺条件．上述因素对炉黑ｐＨ值与反应时间ｔ之间关系的影响可归因于流化床内单位时间臭氧与炉黑的重量比值Ｒ．炉黑达到相同的ｐＨ值时，反应时间与Ｒ成正比，最终得到了炉黑ｐＨ值随反应时间变化的关联式．

Influence of gas velocity,ozone concentration,reaction temperature,static bed height and reaction time on pH value of dry granulated furnace black were studied in fluidized beds,to select suitable reaction conditions.Effect of these factors on pH value can all be related to the amount of ozone introduced into the fluidized beds.The correlation of variation of pH with reaction time is,therefore,only a function of R ,the weight ratio of ozone feed to furnace black in the fluidized beds.