漆蜡的吸附脱色工艺研究  

Adsorptive Decoloration Process of Lacquer Wax

作　　者：董艳鹤[1] 王成章[1,2] 陈虹霞[1] 刘春[1] 叶建中[1,2] 周昊[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室,江苏南京210042 [2]中国林业科学研究院林业新技术研究所,北京100091

出　　处：《林产化学与工业》2011年第2期91-95,共5页Chemistry and Industry of Forest Products

基　　金：国家林业局948技术引进项目(2009-4-58);江苏省农业科技攻关项目(SBE200930456)

摘　　要：采用物理吸附脱色的方法,在水浴搅拌条件下进行单因素和正交试验,旨在找出适宜的漆蜡脱色条件,并采用GC-MS分析脱色前后的漆蜡主要脂肪酸GC含量的变化。结果表明:漆蜡物理吸附脱色的优化工艺条件为以石油醚为溶剂、以活性炭与硅藻土(质量比1∶1)为吸附剂,并按照漆蜡质量的5%添加、液固比20∶1(mL∶g)、温度80℃、脱色时间30 min、脱色2次,此法可使漆蜡的白度达85.25;脱色前后主要脂肪酸的GC含量并无明显变化。In order to find the optimum conditions for lacquer wax decoloration,a physical adsorptive decoloration method was used in single factor and orthogonal experiments under the thermal reflux and agitation conditions.The contents of primary fatty acids in lacquer wax before and after decoloration were investigated by GC-MS method.The results indicate that the optimum decoloration conditions for lacquer wax were using petroleum ether as solvent,activated carbon and kieselguhr（mass ratio 1∶1）as adsorbent,addition of lacquer wax mass 5 %,liquid-solid ratio 20∶1,temperature 80 ℃ and decoloration time 30 min,for twice decoloration.The whiteness of lacquer wax can reach 85.25.The relative contents of the main fatty acids before and after decoloration have no significant change.

关 键 词：漆蜡 吸附剂 脱色 白度 脂肪酸 

分 类 号：TQ351[化学工程] TQ028.8