作　　者： ; ; ;

机构地区： 中国林业科学研究院林产化学工业研究所国家林业局林产化学工程重点开放性实验室

出　　处： 《林产化学与工业》 2007年第4期42-46,共5页

摘　　要： 以自制A胺为有机胺原料,采用胺盐法,以95%乙醇为胺盐的重结晶溶剂,从松香酸中分离提纯得到纯度90.91%的枞酸,该方法所用原料A胺价廉,重结晶溶剂用量小,毒性小,不仅大幅度降低了成本,还具有环保作用。样品用1H NMR、UV、IR和GC-MS鉴定了结构。研究了异丙胺、环己胺、十八烷基伯胺、二丁胺、三乙胺和A胺等多种有机胺盐法提纯枞酸,分析了有机胺的碳原子数和伯仲叔胺对提纯的影响,得到的90%纯度的枞酸在5 kPa、-15℃条件下储存2个月纯度基本不变。 Abietic acid of 90.91% purity was obtained by amine salt method, using self-prepared amine A as raw material and 95 % ethyl alcohol as recrystallization solvent. The method is economic and environmentally friendly because of the low price of amine A and small consumption of recrystallization solvent. Sample was characterized by ^1H NMR, UV, IR and GC-MS methods. Purifications of abietic acid with isopropylamine, cyclohexylamine, octadecyl primaryamine, di-n-butylamine, triethylamine, and amine A were studied. The effects of carbon numbers of amines and primary, secondary, tertiary amines on purifying process were analyzed. The abietic acid with purity of 90 % could be stored for 2 months at 5 kPa and - 15 ℃.

关 键 词： 松香 枞酸 松香酸 提纯 胺

领　　域： [化学工程]