落叶松树皮碱浸提工艺  

Alkaline Extraction Tecnology for Larch Bark

作　　者：张丽君[1] 郑志方[1] 韩预东 杨旭[1] 

机构地区：[1]东北林业大学

出　　处：《东北林业大学学报》1997年第4期39-41,共3页Journal of Northeast Forestry University

摘　　要：此文是制胶用落叶松树皮栲胶浸提方法研究的续篇，进一步研究了落叶松树皮碱浸提工艺。采用工厂中广泛使用的罐组连续逆流浸提方法，通过正交实验确定了浸提工艺条件。加碱部位为第二罐；出流系数为６；不预浸。该法总固物抽出率和浸提液浓度均显著增加。This paper is a continuation of the extraction methods of larch bark tannin extract used for manufacture of adhesives alkaline extraction technology for larch bark was further studied The continuous counter-current extraction battery process which is most widly used in the mill was employed The optimal conditions of the extraction were determined by crossed test The operating conditions of extraction syetem are: alkaline solution placed in the second extractor, coefficient of draw-off liquor 6, non-preliminary dip In this process the extraction rate of total solid and the concentration of extractive liquor are noticeably increased

关 键 词：落叶松树皮 浸提工艺 胶粘剂 

分 类 号：S789.1[农业科学—林学]