杨智发1; 于淑秋1; 陈宋镛1; 刘守信2; 周重慰2
1 Institute of Chemical Metallurgy, Academia Sinica, Beijing, 100080
2 North China Pharmaceutical Corporation, Shijiazhuang, 050015, Hebei
YANG Zhifa1; YU Shuqiu1; CHEN Jiayong1; LIU Shouxin2; ZHOU Chongwei2
摘要: The mixture of neutral phosphorus esters and butyl acetate (BA) can be used, as the extractant for the extraction of penicillin G. The extraction equilibrium pH can be increased to pH3—4 due to the stronger extraction capability of the solvent mixture, instead of pH1.8—2.2 with butyl acetate as solvent. The experimental results indicate that the total recovery of penicillin G can reach 96.6% with the new extraction process, which is 5—6% higher than that obtained with the traditional process using BA as solvent at pH1.8—2.2.