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公开(公告)号：US5723689A
公开(公告)日：1998-03-03
申请号：US587052
申请日：1996-01-16
IPC分类号： B01J31/02 , B01J31/10 , C07B61/00 , C07C37/20 , C07C37/68 , C07C37/74 , C07C37/84 , C07C39/16 , C07C39/12
CPC分类号： C07C37/74 , C07C37/685 , C07C37/84
摘要： A method for recovering substantially pure p,p-bisarylols from a mixture comprising the same by subjecting the mixture to vacuum distillation and melt crystallization in the absence of an adduct crystallization and the generation of a reaction recycle stream.
摘要翻译： 一种通过在不存在加合物结晶并产生反应循环物流的情况下使混合物进行真空蒸馏和熔融结晶从而从包含其的混合物的混合物中回收基本上纯的p，p-双杂环的方法。
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2.发明授权
公开(公告)号：US5908952A
公开(公告)日：1999-06-01
申请号：US823784
申请日：1997-03-24
CPC分类号： C07C68/005
摘要： Hydroxyaromatic compounds such as phenol are converted to diaryl carbonates by reaction with oxygen and carbon monoxide in the presence of a catalyst package which comprises a Group VIIIB metal, preferably palladium, salt of at least one aliphatic .beta.-diketone such as 2,4-pentanedione. The catalyst package also preferably comprises an inorganic cocatalyst, an organic cocatalyst and a bromide or chloride, preferably bromide, source such as a hexaalkylguanidinium bromide. The use of the .beta.-diketone salt confers such advantages as long shelf life under normal storage conditions, high activity upon recycle and capability of carbonylation at relatively low temperatures.
摘要翻译： 羟基芳族化合物如苯酚通过与氧和一氧化碳反应在催化剂包的存在下转化为碳酸二芳基酯，催化剂包含ⅦB族金属，优选至少一种脂族β-二酮的钯盐，例如2,4-戊二酮 。 催化剂包装还优选包含无机助催化剂，有机助催化剂和溴化物或氯化物，优选溴化物源，例如六烷基溴化胍。 使用β-二酮盐具有在正常储存条件下长保存期限，循环时高活性和在较低温度下羰基化能力的优点。
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3.发明授权Method for preparing diaryl carbonates employing hexaalkylguanidinium halides 失效使用六烷基囟鎓卤化物制备碳酸二芳基酯的方法
公开(公告)号：US5898079A
公开(公告)日：1999-04-27
申请号：US929000
申请日：1997-09-12
IPC分类号： C07C68/00
CPC分类号： C07C68/005
摘要： Hydroxyaromatic compounds such as phenol are converted to diaryl carbonates by reaction with oxygen and carbon monoxide in the presence of a catalyst package which typically comprises a group VIIIB metal or compound thereof, an inorganic cocatalyst, an organic cocatalyst and a hexaalkylguanidinium bromide or chloride, preferably bromide. The use of the hexaalkylguanidinium salt causes an increase in the yield of diaryl carbonate without a decrease in selectivity.
摘要翻译： 在通常包含第VIIIB族金属或其化合物，无机助催化剂，有机助催化剂和六烷基溴化胍或氯化物的催化剂包的存在下，通过与氧和一氧化碳反应，将羟基芳族化合物如苯酚转化为碳酸二芳基酯 溴化物。 六烷基胍盐的使用导致碳酸二芳基酯的收率增加，而不会降低选择性。
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公开(公告)号：US5760272A
公开(公告)日：1998-06-02
申请号：US823785
申请日：1997-03-24
CPC分类号： C07C68/005
摘要： Hydroxyaromatic compounds such as phenol are converted to diaryl carbonates by reaction with oxygen and carbon monoxide in the presence of a catalyst package and an added diluent free from active hydrogen. The preferred catalyst packages comprise a Group VIIIB metal or salt thereof, an inorganic cocatalyst, and organic cocatalysts and a bromide or chloride source. The amount of added diluent is an effective amount to improve selectivity to diaryl carbonate. Preferred diluents are diphenyl carbonate and N-methylpyrrolidone.
摘要翻译： 在催化剂封装和不含活性氢的添加稀释剂的存在下，通过与氧气和一氧化碳反应，将羟基芳族化合物如苯酚转化为碳酸二芳基酯。 优选的催化剂组合物包含VIIIB族金属或其盐，无机助催化剂和有机助催化剂以及溴化物或氯化物源。 添加的稀释剂的量是改善对碳酸二芳基酯的选择性的有效量。 优选的稀释剂是碳酸二苯酯和N-甲基吡咯烷酮。
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公开(公告)号：US5756801A
公开(公告)日：1998-05-26
申请号：US797068
申请日：1997-02-10
CPC分类号： C07C68/08
摘要： Adducts of hydroxyaromatic compounds such as phenol and diaryl carbonates such as diphenyl carbonate are washed with a washing composition comprising a major proportion, typically about 90%, of the hydroxyaromatic compound and a minor proportion, typically about 10%, of the diaryl carbonate.
摘要翻译： 羟基芳族化合物如苯酚和碳酸二芳基酯如碳酸二苯酯的加合物用包含主要比例（通常约90％）的羟基芳族化合物和较小比例，通常约10％的碳酸二芳基酯的洗涤组合物洗涤。 ！
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公开(公告)号：US06303835B1
公开(公告)日：2001-10-16
申请号：US09659460
申请日：2000-09-11
IPC分类号： C07C3700
摘要： Phenol and isopropenylphenol are recovered from BPA tars by sparging the fluidized BPA tar while heating in the presence of a basic catalyst. Sparging dramatically increases the efficiency of phenol and isopropenylphenol recovery. Recovered isopropenylphenol may be converted to bisphenol A in the distillate by reaction with phenol and an acidic catalyst.
摘要翻译： 苯酚和异丙烯基酚通过在碱性催化剂存在下加热而喷射流化BPA焦油从BPA焦油中回收。 喷雾显着提高了苯酚和异丙烯基酚回收的效率。 通过与苯酚和酸性催化剂反应，回收的异丙烯基苯酚可以在馏出物中转化成双酚A。
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公开(公告)号：US5898080A
公开(公告)日：1999-04-27
申请号：US40264
申请日：1997-08-27
IPC分类号： C07C68/00
CPC分类号： C07C68/005
摘要： Hydroxyaromatic compounds such as phenol are converted to diaryl carbonates by reaction with oxygen and carbon monoxide in the presence of a catalyst package which typically comprises a group VIIIB metal or compound thereof, an inorganic cocatalyst, an organic cocatalyst and a hexaalkylguanidinium bromide or chloride, preferably bromide. The use of the hexaalkylguanidinium salt causes an increase in the yield of diaryl carbonate without a decrease in selectivity.
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公开(公告)号：US5981788A
公开(公告)日：1999-11-09
申请号：US963109
申请日：1997-11-03
IPC分类号： B09B3/00 , B01J23/94 , B01J27/32 , B01J31/40 , B01J38/00 , B01J38/50 , C07C68/08 , C07C69/68 , C07C69/96
CPC分类号： B01J31/1805 , B01J31/0239 , B01J31/04 , B01J31/2208 , B01J31/2239 , B01J31/4023 , B01J31/4038 , C22B11/048 , B01J2531/82 , B01J2531/822 , B01J2531/845 , B01J27/10 , Y02P10/214
摘要： Catalytic materials including divalent palladium compounds, divalent cobalt compounds and bromide sources such as tetraalkylammonium and hexaalkylguanidinium bromides are removed from organic carbonylation reaction mixtures comprising said materials in combination with diaryl carbonate and hydroxyaromatic compound. The removal steps include extraction with an aqueous complexing solution for palladium, extraction with an aqueous non-basic and preferably ionic extractant for cobalt, and extraction with water to remove bromide source. These steps may be combined into an integrated process. Further steps of recycle of the palladium by reduction to elemental palladium and conversion to a catalytically active species, and conversion of cobalt to a catalytically active species, may be included in the integrated process.
摘要翻译： 包括二价钯化合物，二价钴化合物和溴化物源如四烷基铵和六烷基胍溴化物的催化材料从包含所述材料的碳酸二芳基酯和羟基芳族化合物的有机羰基化反应混合物中除去。 去除步骤包括用钯的水性络合溶液萃取，用非水碱性和优选离子萃取剂用于钴的萃取，并用水萃取以除去溴化物源。 这些步骤可以组合成一个集成的过程。 在一体化方法中可以包括通过还原成元素钯并转化为催化活性物质的钯和将钴转化成催化活性物质的再循环的步骤。
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公开(公告)号：US06197916B1
公开(公告)日：2001-03-06
申请号：US09385680
申请日：1999-08-30
IPC分类号： C08G5962
摘要： A method for preparing bisphenol A is disclosed, with a selectivity for the p,p′-isomer of greater than about 97%. The method involves reacting phenol with p-isopropenylphenol or 2-(4-hydroxyphenyl)-2-propanol in the presence of a catalyst, at a reaction temperature of no greater than about 65° C. The bisphenol A product is preferably purified by a technique which omits the use of adduct crystallization.
摘要翻译： 公开了制备双酚A的方法，对p，p'-异构体的选择性大于约97％。 该方法包括在不大于约65℃的反应温度下，在催化剂存在下使苯酚与对异丙烯基苯酚或2-（4-羟基苯基）-2-丙醇反应。双酚A产物优选通过 省略使用加合物结晶的技术。
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公开(公告)号：US5990362A
公开(公告)日：1999-11-23
申请号：US144487
申请日：1998-08-31
CPC分类号： C07C37/14 , C07C37/16 , C07C37/20 , C08G64/24 , C08G64/307
摘要： A method for preparing bisphenol A is disclosed, with a selectivity for the p,p'-isomer of greater than about 97%. The method involves reacting phenol with p-isopropenylphenol or 2-(4-hydroxyphenyl)-2-propanol in the presence of a catalyst, at a reaction temperature of no greater than about 65.degree. C. The bisphenol A product is preferably purified by a technique which omits the use of adduct crystallization.
摘要翻译： 公开了制备双酚A的方法，对p，p'-异构体的选择性大于约97％。 该方法包括在不大于约65℃的反应温度下，在催化剂存在下使苯酚与对异丙烯基苯酚或2-（4-羟基苯基）-2-丙醇反应。双酚A产物优选通过 省略使用加合物结晶的技术。
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