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公开(公告)号：US3968171A
公开(公告)日：1976-07-06
申请号：US16658
申请日：1970-03-05
CPC分类号： C07C37/685 , C07C37/72 , C07C37/74 , C07C37/84
摘要： Dihydric phenols produced by rearrangement of p-dialkylbenzene hydroperoxides are recovered from the rearrangement effluent by distilling byproduct ketone in a distillation tower from a mixture of the rearrangement effluent with benzene and dihydric phenol-containing aqueous feed and extracting impurities and aromatic byproducts with benzene. Benzene containing dissolved impurities and aromatic byproducts, and water containing the dihydric phenol are removed from the bottom of the distillation tower and separated in an extractor column, the dihydric phenol is recovered from its aqueous solution by crystallization and the mother liquor from the crystallization step is recycled to the distillation tower.
摘要翻译： 通过从重排流出物与苯和含二羟基酚的含水原料的混合物中蒸馏副产物酮，并从苯中提取杂质和芳族副产物，从重排流出物中回收由二烷基苯氢过氧化物重排产生的二元酚。 含有溶解的杂质和芳族副产物的苯以及含有二元酚的水从蒸馏塔的底部除去并在提取塔中分离，通过结晶从其水溶液中回收二元酚，并且来自结晶步骤的母液为 再循环到蒸馏塔。
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公开(公告)号：US4230890A
公开(公告)日：1980-10-28
申请号：US926139
申请日：1978-07-19
申请人： Ward J. Burkholder
发明人： Ward J. Burkholder
IPC分类号： C07C409/12
CPC分类号： C07C409/12 , C07C407/00 , C07C407/003
摘要： Separation of diisopropylbenzene dihydroperoxide from a diisopropylbenzene oxidation reaction mixture by treating the reaction mixture with concentrated alkali metal hydroxide and recovering the alkali metal salt of diisopropylbenzene dihydroperoxide in high purity and good yield, and subsequently converting the salt to diisopropylbenzene dihydroperoxide.
摘要翻译： 通过用浓碱金属氢氧化物处理反应混合物并以高纯度和高收率回收二异丙苯二氢过氧化物的碱金属盐，然后将盐转化为二异丙苯二氢过氧化物，从二异丙基苯氧化反应混合物中分离出二异丙苯二氢过氧化物。
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公开(公告)号：US4420376A
公开(公告)日：1983-12-13
申请号：US410346
申请日：1982-08-23
申请人： Ward J. Burkholder
发明人： Ward J. Burkholder
CPC分类号： C07C37/685 , C07C37/74 , C07C37/76
摘要： An improved process for recovering high purity resorcinol produced by the rearrangement of m-diisopropylbenzene dihydroperoxide in which the rearranged product mixture is neutralized, the neutralized mixture being filtered, the filtrate being admixed with toluene, the acetone being removed by distillation and the acetone-free rearranged product/toluene mixture being steam distilled to provide an aqueous resorcinol containing phase from which the resorcinol is recovered.
摘要翻译： 通过重新排列间二异丙基苯二氢过氧化物产生的高纯度间苯二酚的改进方法，其中重排的产物混合物被中和，将中和的混合物过滤，将滤液与甲苯混合，通过蒸馏除去丙酮和无丙酮 重新排列的产物/甲苯混合物被蒸汽蒸馏以提供间苯二酚含水相，从中回收间苯二酚。
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公开(公告)号：US3978142A
公开(公告)日：1976-08-31
申请号：US433393
申请日：1974-01-14
申请人： Ward J. Burkholder
发明人： Ward J. Burkholder
IPC分类号： C07C37/08 , C07C409/08 , C07C409/12 , C07C409/40
CPC分类号： C07C409/12 , C07C37/08 , C07C407/00 , C07C407/003 , C07C409/08 , C07C409/40
摘要： A portion of a recycle stream obtained from the reaction mixture resulting from the oxidation of an aryl tertiary alkane and containing primarily aralkyl tertiary monohydroperoxide, unreacted aryl tertiary alkane, a minor amount of aralkyl tertiary polyhydroperoxide and other by-products is separated to obtain a fraction containing substantially all of the polyhydroperoxide and at least some of the by-products, the fraction then being introduced into a rearrangement zone to convert at least a portion of the polyhydroperoxide to the corresponding polyphenol.
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公开(公告)号：US4229596A
公开(公告)日：1980-10-21
申请号：US674964
申请日：1976-04-08
摘要： Dihydric phenols produced by rearrangement of p-dialkylbenzene hydroperoxides are recovered from the rearrangement effluent by distilling byproduct ketone in a distillation tower from a mixture of the rearrangement effluent with benzene and dihydric phenol-containing aqueous feed and extracting impurities and aromatic byproducts with benzene. Benzene containing dissolved impurities and aromatic byproducts, and water containing the dihydric phenol are removed from the bottom of the distillation tower and separated in an extractor column, the dihydric phenol is recovered from its aqueous solution by crystallization and the mother liquor from the crystallization step is recycled to the distillation tower.
摘要翻译： 通过从重排流出物与苯和含二羟基酚的含水原料的混合物中蒸馏副产物酮，并从苯中提取杂质和芳族副产物，从重排流出物中回收由二烷基苯氢过氧化物重排产生的二元酚。 含有溶解的杂质和芳族副产物的苯以及含有二元酚的水从蒸馏塔的底部除去并在提取塔中分离，通过结晶从其水溶液中回收二元酚，并且来自结晶步骤的母液为 再循环到蒸馏塔。
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公开(公告)号：US4088699A
公开(公告)日：1978-05-09
申请号：US462596
申请日：1974-04-22
IPC分类号： C07C45/36 , C07C409/08 , C07C409/12 , C07C409/40 , C07C179/02
CPC分类号： C07C45/36 , C07C407/00 , C07C407/003 , C07C409/12 , C07C409/40
摘要： A portion of a stream obtained by the oxidation of an aryl tertiary alkane and containing primarily aralkyl tertiary monohydroperoxide, substantial amounts of aryl tertiary alkane, smaller amounts of keto aryl tertiary alkanols, aralkyl tertiary dialkanols and other by-products is subjected to a separation step wherein a fraction containing the greater part of the aryl tertiary alkane and at least some of the monohydroperoxide, and a fraction containing the keto aryl tertiary alkanol are separated from one another and the fraction containing the aryl tertiary alkane and the monohydroperoxide is returned to the oxidation reaction.
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公开(公告)号：US4001338A
公开(公告)日：1977-01-04
申请号：US845044
申请日：1969-07-25
申请人： Ward J. Burkholder
发明人： Ward J. Burkholder
IPC分类号： C07C409/08 , C07C409/12 , C07C179/02
CPC分类号： C07C409/08 , C07C407/003 , C07C409/12
摘要： An improved method for separating para-dialkylbenzene monohydroperoxide from crude solid para-dialkylbenzene dihydroperoxide which comprises treating the solid dihydroperoxide with a liquid hydrocarbon to form a mixture, heating the mixture to a temperature of at least about 60.degree. C., cooling the mixture to below about 30.degree. C. and filtering or otherwise physically separating the solid dihydroperoxide.
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