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1. 发明授权

US4981579A Process for separating extractable organic material from compositions comprising said extractable organic material intermixed with solids and water 失效
标题翻译：从包含与固体和水混合的所述可萃取有机材料的组合物分离可提取有机材料的方法
公开(公告)号：US4981579A
公开(公告)日：1991-01-01
申请号：US278967
申请日：1988-12-02
申请人： S. C. Paspek , C. P. Eppig , W. F. Schuller , R. D. Littler , J. B. Hauser , A. R. Rohlik
发明人： S. C. Paspek , C. P. Eppig , W. F. Schuller , R. D. Littler , J. B. Hauser , A. R. Rohlik
IPC分类号： B01D11/02 , B01D11/04 , B09C1/02 , C10G1/04
CPC分类号： C10G1/04 , B01D11/02 , B01D11/04 , B09C1/02
摘要： This invention provides for a process for separating extractable organic material from a feed composition comprising said extractable organic material intermixed with solids and water, the process comprising the steps of: (A) contacting said feed composition with a first organic solvent, said first organic solvent being capable of dissolving at least about ten parts of said extractable organic material per million parts of said first organic solvent at the temperature wherein at least about 50% by weight of said first organic solvent boils at atmospheric pressure; dissolving at least part of said extractable organic material in said first organic solvent to form a first solution; and separating at least part of said first solution from said feed composition to provide an intermediate composition, part of said first organic solvent remaining intermixed with said intermediate composition; and (B) contacting said intermediate composition with a volatile organic solvent, said voltile organic solvent being capable of dissolving at least about ten parts of said first organic solvent per million parts of said volatile organic solvent at the temperature wherein at least about 50% by weight of said volatile organic solvent boils at atmospheric pressure; dissolving at least part of said first organic solvent in said volatile organic solvent to form a second solution; and separating said second solution from said intermediate composition to provide a treated product.
摘要翻译：本发明提供从包含与固体和水混合的所述可萃取有机材料的进料组合物中分离可提取有机材料的方法，所述方法包括以下步骤：（A）使所述进料组合物与第一有机溶剂接触，所述第一有机溶剂能够在至少约50重量％的所述第一有机溶剂在大气压下沸腾的温度下溶解每百万份所述第一有机溶剂中的至少约十份所述可萃取有机材料; 将所述可提取有机材料的至少一部分溶解在所述第一有机溶剂中以形成第一溶液; 并将所述第一溶液的至少一部分与所述进料组合物分离以提供中间组合物，所述第一有机溶剂的一部分与所述中间体组合物混合; 和（B）使所述中间体组合物与挥发性有机溶剂接触，所述伏安有机溶剂在至少约50％以上的温度下能够溶解每百万份所述挥发性有机溶剂中的至少约十份所述第一有机溶剂所述挥发性有机溶剂的重量在大气压下沸腾; 将所述第一有机溶剂的至少一部分溶解在所述挥发性有机溶剂中以形成第二溶液; 并将所述第二溶液与所述中间体组合物分离以提供处理过的产物。

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