Determination of crude soybean fat acid value includes the extraction the crude fat in soybean,and determination of acid value. Because the extraction of crude fat in soybean takes a long time,Therefore,the acid value of crude fat in soybean cannot be detected quickly. In order to realize than testing rapidly of lots of samples,to know the soybean quality duly. Design a quick extractor to extracted crude fat in soybean,and solvent recovery device than auxiliary device for fat extractor. Devised a method of ...