(NH_4)_(11)Gd[Gd_4Mo_(29)O_(100)(H_2O)_(16)]·33H_2O杂多化合物  

Catalytic Activity of Heteropoly Compound (NH_4)_(11)Gd[Gd _4Mo^(29)O_(100)(H_2O)_(16)]·33H_2O in Phenol Hydroxylation

作　　者：林深[1] 王世铭[1] 郑瑛[1] 李小晶[1] 

机构地区：[1]福建师范大学化学系,福州350007

出　　处：《应用化学》2000年第2期192-194,共3页Chinese Journal of Applied Chemistry

基　　金：福建省科委资助课题! ( K990 17)

摘　　要：Title molybdogadolinium heteropoly compound has been synthesized and used to catalize the hydroxylation of phenol with hydrogen peroxide. The effects of reaction time, temperature, pH value, n(phOH)/n(H 2O 2) and solvent on the catalytic activity for phenol hydroxylation have been investigated. The results show that the title compound in the presence of V 2O 5 shows an excellent catalytic activity for phenol hydroxylation. When methanol is used as solvent at n(phOH)/n(H 2O 2)=1∶2, pH=5, at 343 K and for 4 h, hydroquinone in yield of 42 10% is obtained with phenol conversion of 40.50%.Title molybdogadolinium heteropoly compound has been synthesized and used to catalize the hydroxylation of phenol with hydrogen peroxide. The effects of reaction time, temperature, pH value, n(phOH)/n(H 2O 2) and solvent on the catalytic activity for phenol hydroxylation have been investigated. The results show that the title compound in the presence of V 2O 5 shows an excellent catalytic activity for phenol hydroxylation. When methanol is used as solvent at n(phOH)/n(H 2O 2)=1∶2, pH=5, at 343 K and for 4 h, hydroquinone in yield of 42 10% is obtained with phenol conversion of 40.50%.

关 键 词：苯酚 羧化 对苯二酚 钼钆杂多化合物 催化活性 

分 类 号：O625.312[理学—有机化学] O643.36[理学—化学]