摘要
研究了焦性没食子酸(邻苯三酚)在丙醇-硫酸铵双水相体系中的分配行为,重点研究了双水相的形成、硫酸铵用量、丙醇体积分数、溶剂用量、pH值对分配比的影响,在实验中确立了焦性没食子酸的最佳实验条件为:硫酸铵用量为6 g、丙醇体积分数为60%、溶剂用量为1∶20、pH=5.57。焦性没食子酸的最大分配比达5.57,相应的萃取率达80%。
Partition characteristics of pyrogallol in propanol - ammonium sulfate aqueous two - phase system was studied, and the formation of aqueous two - phase and the effect of ammonium sulfate amount, propanol volume fraction, solvent amount and pH on partition ratio was investigated. The optimum extraction condition was determined as follows ： am- monium sulfate amount as 6 g, propanol volume fraction as 60%, ratio of raw materials and solution as 1 ： 20 in pH 5.57, with the maximum partition ratio of 5.5 and the extraction rate of 79%.
出处
《云南化工》
CAS
2009年第2期14-17,25,共5页
Yunnan Chemical Technology
关键词
焦性没食子酸
丙醇-硫酸铵双水相
分配比
pyrogallol
propanol - ammonium sulfate aqueous two - phase
partition ratio
