公开(公告)号：US4787981A

公开(公告)日：1988-11-29

申请号：US928585

申请日：1986-11-10

申请人： Seiichi Tanahashi ,  Kaoru Nagano ,  Masaaki Kasai ,  Fujihiko Tsubone ,  Akio Iwama ,  Yoshitaka Kazuse ,  Kentaro Tasaka ,  Yutaka Isooka

发明人： Seiichi Tanahashi ,  Kaoru Nagano ,  Masaaki Kasai ,  Fujihiko Tsubone ,  Akio Iwama ,  Yoshitaka Kazuse ,  Kentaro Tasaka ,  Yutaka Isooka

IPC分类号： C11B3/10 ,  B01D61/14 ,  C11B3/00 ,  C11B3/16 ,  B01D13/00

CPC分类号： C11B3/001

摘要： A process for purification of crude glyceride oil compositions which comprises diluting a crude glyceride oil composition containing gum material and wax as main components of impurities with an organic solvent, bringing the diluted crude glyceride oil composition into contact with a semipermeable membrane composed of polyimide consisting essentially of a repeating unit represented by the general formula: ##STR1## wherein R.sup.1 represents a divalent organic group, under pressure to obtain a semipermeable membrane permeable liquid in which the gum material in the glyceride oil after removal of said organic solvent is 100 ppm or less, carrying out bleaching of the glyceride oil obtained from said semipermeable membrane permeable liquid with at least one kind of an adsorbent selected from the group consisting of clay, activated clay, activated carbon and bone black, and then carrying out deodorizing to obtain a purified glyceride oil.

摘要翻译： 一种粗甘油酯油组合物的纯化方法，其包括用有机溶剂稀释含有胶质材料和蜡作为杂质的主要成分的粗甘油酯油组合物，使稀释的粗甘油酯油组合物与由本质上组成的聚酰亚胺组成的半透膜接触 其中R1表示二价有机基团，其中R 1表示二价有机基团，得到半透膜可渗透液体，其中除去所述有机溶剂后甘油酯油中的胶料为100ppm以下 用至少一种选自粘土，活性粘土，活性炭和骨黑的吸附剂进行从所述半透膜渗透液中得到的甘油酯油的漂白，然后进行除臭以获得纯化的甘油酯 油。