Abstract:

The emulsion of carbide slag was modified by using the calcination and ultrasonic treatment processes respectively. The effects of different modification processes and modification conditions on emulsion activity of carbide slag were investigated. The emulsion activity of carbide slag was determined by testing hydration speed, sedimentation volume, time of phenolphthalein erubescence and granularity distribution. The results indicated that the emulsion activity of carbide slag was improved via both the calcination and ultrasonic treatment processes. The calcinations process (carbide slag was calcined at 800 ℃ for 2 h, then the calcined sample which was hydrated with deionized water of 80 ℃ were churned up approximately 30 min) was beneficial to the improvement of emulsion activity. The emulsion of carbide slag was modified by using ultrasonic treatment for 4 h also had better activity.

摘要： 利用煅烧与超声工艺分别对电石渣乳液进行改性处理。研究了不同改性工艺及条件对电石渣乳液活性的影响，通过采用测定消解速率、沉降体积、酚酞变红时间、粒度分布等手段对电石渣乳液进行了分析与表征。结果表明，与未改性电石渣乳液相比，煅烧和超声改性工艺均使电石渣乳液活性度有明显的提高；800 ℃保温2 h煅烧的电石渣经80 ℃、12倍的去离子水消解后搅拌30 min可制得活性高的电石渣乳液；电石渣乳液经超声4 h改性后活性显著提高。