环境友好型双酚芴合成工艺研究

Study on the Environmental Friendly Synthetic Process of BHPF

本文以研究环境友好型双酚芴合成工艺为目的,首先分别考察了磷钨杂多酸、固载杂多酸、阳离子交换树脂、改性树脂等催化剂的效果,最终确定以改性树脂作为催化剂合成双酚芴。合成过程中用沸水替代复合溶剂进行后处理,并考察了催化剂用量、反应时间、温度、酚酮摩尔比等因素对双酚芴收率的影响。结果表明,当酚酮摩尔比为10∶1,催化剂用量占总物料的16%,反应温度105℃,反应时间10 h时,双酚芴单程反应收率和纯度最佳。与传统生产工艺相比,本工艺对设备材质要求低,催化效率高,副反应少,后处理简单,且催化剂可回收利用,具有明显的经济效益与环境生态效益优势。

The environmental friendly synthesis process of 9,9-bis( 4-hydroxyphenyl)-fluorene( BHPF) from phenol and fluorenone was researched in this paper. Based on investigating the efficiency of phosphotungstic acid,supported heteropolyacid,strong-acidic cation exchange resin and modified resin catalysts,respectively,modified resin was selected the best one. Altogether,the reaction mixture was washed by the boiling water,rather than the compound solvent. The effects of yield,amount of catalyst,reaction temperature,reaction time,mole ratio of phenol to fluorenone were investigated. The results showed that the reaction yield and purity were perfect when mole ratio of phenol to fluorenone was 10: 1,the amount of catalyst is 16% of the total material,the reaction temperature was 105℃,and the reaction time was 10 h. Compared with the traditional production process of BHPF,this environmental? friendly process has significant advantages in economic and environmental benefits for its low material requirement for equipments,high catalytic efficiency,little side reaction,simple post-treatment and catalyst recycling.