水杨酸钙镁复合清净剂合成工艺条件研究

通过单因素试验和正交试验对影响烷基水杨酸钙镁复合清净剂碱值的主要因素进行了研究和优化,利用傅里叶红外(FT-IR)和冷冻蚀刻电子显微镜观测技术(FE-EM)对产品的结构进行表征.得到合成烷基水杨酸钙镁复合清净剂的最佳物料配比和操作条件:氧化镁加入量20 g、水加入量10 mL、甲醇加入量20 mL、氨水加入量6 mL;...

Study on Synthesis Conditions of Calcium-magnesium Alkyl Salicylate Compound Detergent

Synthesis conditions which influenced total base number （TBN） of calcium-magnesium alkyl salicylate compound detergent were studied and optimized by single factor test and orthogonal experiment. The product structure was characterized by Fourier transform infrared （FT-IR） and freeze-etching replication transmission electron microscopy（FE-EM）. The best synthesis conditions of calcium-magnesium alkyl salicylate compound detergent were determined as follows： magnesia 22 g, water 10mL, methanol 20mL, aqua ammonia 6mL; the flow rate of carbon dioxide 120 mL/min, carbonation time 3 h,carbonation temperature 45 - 50 ℃, neutralization reaction time 1h. The results show that under the best synthesis conditions, total base number of product is over 350 mg KOH/g, and synthesis process conditions have favorable repetition;