乙酰丙酮氧钒的绿色合成工艺研究

Study of the Green Synthesis of VO(acac)2

摘要:

以三氧化二钒为钒源，在体系中引入氧化剂和水夹带剂，合成了乙酰丙酮氧钒，实现了乙酰丙氧钒的绿色连续合成。探讨了空气、过氧化氢和氧气三种氧化剂对乙酰丙酮氧钒合成的影响，对产物进行表征并与商业乙酰丙酮氧钒对比。结果表明，引入氧化剂之后，乙酰丙酮氧钒的产率显著提高，三种氧化剂制得的乙酰丙酮氧钒产率均可达到80%以上，其中氧气氧化效果最好，当氧气流量为200 mL/min，回流2 h时，乙酰丙酮氧钒产率可达90%。XRD、FTIR和TG结果显示，本研究合成的乙酰丙酮氧钒纯度较高，与商业乙酰丙酮氧钒可比。

Abstract:

VO(acac)2 was synthesized from V2O3 in the present study. In the synthesis process, three oxidizing agents including air, O2, and H2O2, and toluene as a kind of water entrainment agent were introduced to facilitate the reaction and realize the continuous green synthesis of VO(acac)2. The effects of oxidizing agents were detected and the obtained VO(acac)2 was compared with commercial VO(acac)2. The results show that the yield of VO(acac)2 was significantly promoted and above 80% when used oxidizing agent. O2 was found be the most efficient oxidizing agent. The yield of VO(acac)2 can reach to 90% when O2 flow rate was 200 mL/min and reflux time was 2 h. XRD, FTIR and TG results show that the VO(acac)2 synthesized in this paper has high purity and is comparable to commercial VO(acac)2.