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公开(公告)号：US4240968A
公开(公告)日：1980-12-23
申请号：US33392
申请日：1979-04-26
IPC分类号： C07D311/58 , C08G64/06 , C07D311/04
CPC分类号： C08G64/06 , C07D311/58
摘要： A process is disclosed for isolating and purifying diphenol by-products to obtain an enriched chroman-I concentrate. The process includes slurrying a mixture of diphenol by-products in a suitable solvent system to form a solid, and then recovering, washing and drying the collected solid.
摘要翻译： 公开了用于分离和纯化二酚副产物以获得富集的色满-1浓缩物的方法。 该方法包括将二酚副产物的混合物在合适的溶剂体系中制浆以形成固体，然后回收，洗涤和干燥所收集的固体。
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公开(公告)号：US4300000A
公开(公告)日：1981-11-10
申请号：US42965
申请日：1979-05-29
申请人： Clayton W. Reinitz
发明人： Clayton W. Reinitz
CPC分类号： C07C37/84
摘要： 2,2-Bis(4-hydroxyphenyl) propane, herein referred to as bisphenol-A, is recovered from crude or partially purified adducts with phenol by dissolving in a solvent in which the bisphenol-A phenol adduct is soluble and which is miscible with water, mixing the resulting adduct-solvent solution with water at a temperature at which the adduct is soluble therein, cooling the mixture to a temperature where substantially all of the bisphenol-A precipitates substantially without co-precipitation of the phenol, and physically recovering said precipitated bisphenol-A. Also contemplated is an embodiment wherein such a solvent solution of bisphenol-A or the adduct thereof with phenol is added to the water, rather than vice-versa, and high purity, easy to handle rhombic crystals of bisphenol-A are produced.
摘要翻译： 2,2-双（4-羟基苯基）丙烷（以下称为双酚A）通过溶解于双酚A苯酚加合物可溶于其中并与 水，在加合物可溶于其中的温度下将所得到的加合物 - 溶剂溶液与水混合，将混合物冷却至基本上全部双酚-A基本上沉淀而没有苯酚共沉淀的温度，并物理回收所述 沉淀双酚A。 还考虑了一种实施方案，其中将双酚-A的溶剂溶液或其与苯酚的加合物加入到水中，而不是反之亦然，并且产生双酚-A的高纯度，易于处理的菱形晶体。
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公开(公告)号：US4192955A
公开(公告)日：1980-03-11
申请号：US865297
申请日：1977-12-18
申请人： Clayton W. Reinitz
发明人： Clayton W. Reinitz
CPC分类号： C07C37/84
摘要： 2,2-Bis(4-hydroxyphenyl) propane, herein referred to as bisphenol-A, is recovered from crude or partially purified adducts with phenol by dissolving in a solvent in which the bisphenol-A phenol adduct is soluble and which is miscible with water, mixing the resulting adduct-solvent solution with water at a temperature at which the adduct is soluble therein, cooling the mixture to a temperature where substantially all of the bisphenol-A precipitates substantially without co-precipitation of the phenol, and physically recovering said precipitated bisphenol-A. Also contemplated is an embodiment wherein such a solvent solution of bisphenol-A or the adduct thereof with phenol is added to the water, rather than vice-versa, and high purity, easy to handle rhombic crystals of bis-phenol-A are produced.
摘要翻译： 2,2-双（4-羟基苯基）丙烷（以下称为双酚A）通过溶解于双酚A苯酚加合物可溶于其中并与 水，在加合物可溶于其中的温度下将所得到的加合物 - 溶剂溶液与水混合，将混合物冷却至基本上全部双酚-A基本上沉淀而没有苯酚共沉淀的温度，并物理回收所述 沉淀双酚A。 还考虑了一种实施方案，其中将双酚-A的溶剂溶液或其与苯酚的加合物加入到水中，而不是反之亦然，并且产生双酚A的高纯度，易于处理的菱形晶体。
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