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公开(公告)号:US09248381B2
公开(公告)日:2016-02-02
申请号:US13358943
申请日:2012-01-26
申请人: Thomas Chad Walker , Stephen W. Turner , Jay William Landwehr , Douglas da Silva Rosa , Mark Elliot Durchholz
发明人: Thomas Chad Walker , Stephen W. Turner , Jay William Landwehr , Douglas da Silva Rosa , Mark Elliot Durchholz
CPC分类号: B01D3/12 , B01D1/22 , B01D3/04 , C07C51/34 , C07C51/43 , C07C51/44 , C07C55/02 , C07C55/10 , C07C55/14 , C07C55/18 , C07C55/20 , C07C55/21
摘要: A process for purifying a dicarboxylic acid that is derived from the mixed oxidation products from an ozonization of a mixture containing an ethylenically unsaturated compound having between 6 to 24 carbons, the process includes distilling the mixed oxidation products to provide a first distillate, and a second distillate, where the second distillate includes the dicarboxylic acid and impurity acids, partitioning the second distillate between water and a organic solvent, separating the organic solvent layer from the water layer, lowering the temperature of the water layer to crystallize at least a portion of the dicarboxylic acid, separating the crystallized dicarboxylic acid solid, melting the crystallized dicarboxylic acid, and distilling the liquid dicarboxylic acid to provide a purified dicarboxylic acid.
摘要翻译: 从含有6〜24个碳原子的烯键式不饱和化合物的混合物的臭氧化而得到的来自混合氧化物的二羧酸的方法,该方法包括蒸馏混合氧化产物以提供第一馏出物,第二馏分 馏出物,其中第二馏出物包括二羧酸和杂质酸,将第二馏出物在水和有机溶剂之间分配,将有机溶剂层与水层分离,降低水层的温度以使至少一部分 二羧酸,分离结晶二羧酸固体,熔融结晶的二羧酸,蒸馏液体二羧酸,得到纯化的二羧酸。
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公开(公告)号:US20120197043A1
公开(公告)日:2012-08-02
申请号:US13358943
申请日:2012-01-26
申请人: Thomas Chad Walker , Stephen W. Turner , Jay William Landwehr , Douglas da Silva Rosa , Mark Elliot Durchholz
发明人: Thomas Chad Walker , Stephen W. Turner , Jay William Landwehr , Douglas da Silva Rosa , Mark Elliot Durchholz
CPC分类号: B01D3/12 , B01D1/22 , B01D3/04 , C07C51/34 , C07C51/43 , C07C51/44 , C07C55/02 , C07C55/10 , C07C55/14 , C07C55/18 , C07C55/20 , C07C55/21
摘要: A process for purifying a dicarboxylic acid that is derived from the mixed oxidation products from an ozonization of a mixture containing an ethylenically unsaturated compound having between 6 to 24 carbons, the process includes distilling the mixed oxidation products to provide a first distillate, and a second distillate, where the second distillate includes the dicarboxylic acid and impurity acids, partitioning the second distillate between water and a organic solvent, separating the organic solvent layer from the water layer, lowering the temperature of the water layer to crystallize at least a portion of the dicarboxylic acid, separating the crystallized dicarboxylic acid solid, melting the crystallized dicarboxylic acid, and distilling the liquid dicarboxylic acid to provide a purified dicarboxylic acid.
摘要翻译: 从含有6〜24个碳原子的烯键式不饱和化合物的混合物的臭氧化而得到的来自混合氧化物的二羧酸的方法,该方法包括蒸馏混合氧化产物以提供第一馏出物,第二馏分 馏出物,其中第二馏出物包括二羧酸和杂质酸,将第二馏出物在水和有机溶剂之间分配,将有机溶剂层与水层分离,降低水层的温度以使至少一部分 二羧酸,分离结晶二羧酸固体,熔融结晶的二羧酸,蒸馏液体二羧酸,得到纯化的二羧酸。
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