Zhang Qingyun, Wang Zhulin, Qin Zhichao, Li Binglin, Guo Zisheng
College of Food Science and Engineering, Northwest University, Xi'an 710069, China.
College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
Molecules. 2024 Sep 23;29(18):4504. doi: 10.3390/molecules29184504.
This study explores the efficient conversion of castor oil to sebacic acid utilizing iron oxide (FeO) loaded on activated carbons as catalysts. Through a combination of saponification, acidification, and catalytic cracking, sebacic acid was produced with a notable yield improvement. The process involved using liquid paraffin as a thinning agent, overcoming the limitations of traditional toxic agents. The catalysts were prepared via adsorption-precipitation-calcination methods, with ultrasonication pretreatment to enhance iron adsorption on activated carbons. The chemical composition, structure, and morphology properties were investigated by different characterizations; such as scanning electron microscopy (SEM), thermogravimetric analysis (TG/DTG). Systematic investigations into the adsorption capacity, catalytic activity, and operational parameters like temperature, reaction time, and catalyst recycling were conducted. The optimized method achieved a sebacic acid yield of 83.4%, significantly higher than traditional methods (60.2%), with improved safety and environmental impact. The study provides valuable insights into sustainable and efficient sebacic acid production which is crucial for industrial applications in processing of castor oil.
本研究探索了以负载在活性炭上的氧化铁（FeO）为催化剂，将蓖麻油高效转化为癸二酸的方法。通过皂化、酸化和催化裂化相结合的方式，癸二酸的产量得到显著提高。该过程使用液体石蜡作为稀释剂，克服了传统有毒试剂的局限性。催化剂通过吸附 - 沉淀 - 煅烧方法制备，并经过超声预处理以增强铁在活性炭上的吸附。通过扫描电子显微镜（SEM）、热重分析（TG/DTG）等不同表征手段研究了催化剂的化学成分、结构和形态特性。对吸附容量、催化活性以及温度、反应时间和催化剂循环利用等操作参数进行了系统研究。优化后的方法癸二酸产率达到83.4%，显著高于传统方法（60.2%），且安全性和环境影响均有所改善。该研究为蓖麻油加工工业应用中可持续、高效地生产癸二酸提供了有价值的见解。
