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1. 发明授权

US3715403A Separation of alpha-naphthol 失效
标题翻译：阿尔法萘酚的分离
公开(公告)号：US3715403A
公开(公告)日：1973-02-06
申请号：US3715403D
申请日：1968-12-19
申请人： YEDA RES & DEV
发明人： MARTAN M , MANASSEN J , VOFSI D
IPC分类号： C07C37/72 , C07C37/44
CPC分类号： C07C37/72 , C07C39/14
摘要： A PROCESS FOR THE SEPARATION AND RECOVERY OF A-NAPHTHOL FROM MIXTURES THEREOF WITH A-TETRALONE, WHICH COMPRISES EXTRACTING SUCH MIXTURES WITH AN AQUEOUS AMMONIA OR LOWER ALKYLAMINE FIRST EXTRACTANT AND A LOW BOILING ALIPHATIC HYROCARBON SECOND EXTRACTANT. THE A-NAPHTHOL IS SUBSTANTIALLY RECOVERED IN THE AQUEOUS NITROGEN COMPOUND EXTRACTANT-CONTAINING PHASE, AND MAY SUITABLY BE SEPARATED THEREFROM BY EVAPORATION OF THE LOW BOILING SOLVENT. THE SEPARATION MAY SUITABLY BE CARRIED OUT EMPLOYING COUNTERCURRENT EXTRACTION TECHNIQUES.

2. 发明授权

US4188496A Process for preparing 2,2-bis(4-hydroxy-phenyl) propane from distillation by-products thereof 失效
标题翻译：从蒸馏副产物制备2,2-双（4-羟基 - 苯基）丙烷的方法
公开(公告)号：US4188496A
公开(公告)日：1980-02-12
申请号：US863667
申请日：1977-12-23
申请人： Donald B. G. Jaquiss , Lawrence C. Mitchell
发明人： Donald B. G. Jaquiss , Lawrence C. Mitchell
IPC分类号： C07C37/00 , C07C37/48 , C07C37/44 , C07C37/24
CPC分类号： C07C37/00 , C07C37/48
摘要： A process is disclosed for the production of 2,2-bis(4-hydroxyphenyl) propane, herein referred to as bisphenol-A, from by-products remaining after purification distillation of bisphenol-A produced from a condensation reaction of phenol and acetone. The process comprises mixing the by-products with phenol and treating the resulting mixture with anhydrous hydrogen bromide to isomerize those by-products isomerizable to bisphenol-A for subsequent recovery.
摘要翻译：公开了用于由苯酚和丙酮的缩合反应产生的双酚A的纯化蒸馏后残留的副产物生产2,2-双（4-羟基苯基）丙烷（以下称为双酚A）的方法。该方法包括将副产物与苯酚混合并用无水溴化氢处理所得混合物以使可异构化为双酚A的副产物异构化以用于随后的回收。

3. 发明授权

US4212997A Process for recovering 2,2-bis(4-hydroxyphenyl)propane from an adduct of 2,2-bis(4-hydroxyphenyl)propane and phenol 失效
标题翻译：从2,2-双（4-羟基苯基）丙烷和苯酚的加合物中回收2,2-双（4-羟基苯基）丙烷的方法
公开(公告)号：US4212997A
公开(公告)日：1980-07-15
申请号：US919667
申请日：1978-06-27
申请人： John N. Adams , Gaylord M. Kissinger , Michael C. Lee
发明人： John N. Adams , Gaylord M. Kissinger , Michael C. Lee
IPC分类号： C07C27/00 , C07C37/84 , C07C39/16 , C07C67/00 , C07C37/44
CPC分类号： C07C37/84 , C07C37/685
摘要： The compound 2,2-bis(4-hydroxyphenyl)propane is recovered in the form of rhombic crystals from an essentially non-crystalline mixture comprising 2,2-bis(4-hydroxyphenyl)propane, organic by-products of the condensation reaction of phenol and acetone, and phenol by lowering the temperature of the mixture from an elevated state to a temperature which is low enough to cause the separation of the phenol and 2,2-bis(4-hydroxyphenyl)propane in equimolar proportions as a crystalline adduct, recovering the adduct, forming a mixture of the adduct and water at an elevated temperature sufficient to completely melt the adduct, and thereafter lowering the temperature of the mixture of water and melted adduct to cause the separation of the 2,2-bis(4-hydroxyphenyl)propane in the form of rhombic crystals substantially free of the phenol. The crystals are easily handled and recovered by means such as filtration or centrifugation, and they can be formed into high quality polycarbonate molding resins.
摘要翻译：化合物2,2-双（4-羟基苯基）丙烷以菱形晶体的形式从包含2,2-双（4-羟基苯基）丙烷的基本上非结晶的混合物中回收，其中有机副产物是苯酚和丙酮，和苯酚，通过将混合物的温度从升高状态降低到足够低的温度，使得以等摩尔比例分离苯酚和2,2-双（4-羟基苯基）丙烷作为结晶加合物，回收加合物，在足以完全熔化加合物的高温下形成加合物和水的混合物，然后降低水和熔融的加合物的混合物的温度，导致2,2-双（4 羟基苯基）丙烷，其形式基本上不含酚。通过过滤或离心等方法可以容易地处理和回收晶体，并且它们可以形成高质量的聚碳酸酯模制树脂。

4. 发明授权

US4180683A Process for recovering 2,2-bis(4-hydroxyphenyl)propane from distillation residues from the preparation thereof 失效
标题翻译：从其制备的蒸馏残余物中回收2,2-双（4-羟基苯基）丙烷的方法
公开(公告)号：US4180683A
公开(公告)日：1979-12-25
申请号：US863668
申请日：1977-12-23
申请人： Lawrence C. Mitchell
发明人： Lawrence C. Mitchell
IPC分类号： C07C37/86 , C07C39/16 , C07C37/44 , C07C37/38
CPC分类号： C07C37/86 , C07C37/84
摘要： A process is disclosed for the recovery of 2,2-bis(4-hydroxyphenyl)propane, herein referred to as bisphenol-A, from residues remaining after purification distillation of bisphenol-A produced from a condensation reaction of phenol and acetone. The process comprises mixing the residues with phenol in the absence of acidic reagents to precipitate a bisphenol-A-phenol crystalline adduct and recovering bisphenol-A from the separated adduct.
摘要翻译：公开了从苯酚和丙酮的缩合反应产生的双酚A的纯化蒸馏后残留的残余物中回收2,2-双（4-羟基苯基）丙烷（以下称为双酚A）的方法。该方法包括在不存在酸性试剂的情况下将残基与苯酚混合以沉淀双酚A-苯酚结晶加合物，并从分离的加合物中回收双酚-A。

5. 发明授权

US4192955A Process for the recovery of 2,2-bis(4-hydroxyphenyl) propane 失效
标题翻译：回收2,2-双（4-羟基苯基）丙烷的方法
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
IPC分类号： C07C27/00 , C07C37/84 , C07C39/16 , C07C67/00 , C07C37/44 , C07C37/24
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。

6. 发明授权

US3993700A Purification of p-phenylphenol 失效
标题翻译：对苯基苯酚的纯化
公开(公告)号：US3993700A
公开(公告)日：1976-11-23
申请号：US333863
申请日：1973-02-20
申请人： William E. Smith , Irvin W. Potts, Jr.
发明人： William E. Smith , Irvin W. Potts, Jr.
IPC分类号： C07C37/86 , C07C37/44
CPC分类号： C07C37/86 , C07C37/84
摘要： A purified p-phenylphenol is obtained by reduction of the m-phenylphenol percentage from crude or technical grade p-phenylphenol by contacting the mixture with a molar quantity of caustic less than heretofore employed, whereby the m-phenylphenol preferentially reacts to form sodium m-phenylphenate while the p-phenylphenol ends up as a solid in substantially pure form. The amount of the caustic is from about 0.5 to about 10 moles of caustic per mole of m-phenylphenol present. Resin grade p-phenylphenol, i.e., containing less than 2% m-phenylphenol can be obtained from a starting material containing up to 30% m-phenylphenol.
摘要翻译：通过使混合物与少于以前使用的摩尔数的苛性碱接触，通过将粗苯酚或工业级对苯基苯酚的间苯基苯酚百分比降低而获得纯化的对苯基苯酚，由此间苯基苯酚优先反应形成m- 苯基苯酚，而对苯基苯酚最终为基本上纯的形式的固体。苛性碱的量为每摩尔间苯基苯酚约0.5至约10摩尔苛性碱。树脂级对苯基苯酚，即含有小于2％间苯基苯酚的树脂级别可以从含有高达30％间苯基苯酚的原料获得。

7. 发明授权

US3862248A Pure 2,3,6-trimethylphenol 失效
标题翻译：纯2,3,6-三甲苯酚
公开(公告)号：US3862248A
公开(公告)日：1975-01-21
申请号：US76456468
申请日：1968-10-02
申请人： CONTINENTAL OIL CO
发明人： JONES DONALD C , NEUWORTH MARTIN B
IPC分类号： B01J27/00 , C07B61/00 , C07C27/00 , C07C37/14 , C07C37/86 , C07C39/07 , C07C67/00 , C07C37/44
CPC分类号： C07C37/86 , C07C37/14 , C07C37/50 , C07C39/06 , C07C39/07
摘要： 2,3,6-Trimethylphenol is recovered in high yield and high purity from its admixture with di- and tri-methyl-substituted phenols by subjecting the admixture to the sequential steps of butylation, fractional distillation, debutylation, and finally, fractional distillation.
摘要翻译：通过使混合物经历丁基化，分馏，脱丁基化和最后的分级蒸馏的顺序步骤，从其与二 - 和三 - 甲基取代的酚的混合物中回收高产率和高纯度的2,3,6-三甲基苯酚。

8. 发明授权

US4192954A Process for preparing 2,2-bis(4-hydroxy-phenyl) propane from distillation by-products thereof 失效
标题翻译：从蒸馏副产物制备2,2-双（4-羟基 - 苯基）丙烷的方法
公开(公告)号：US4192954A
公开(公告)日：1980-03-11
申请号：US863666
申请日：1977-12-23
申请人： Henry P. Barker , Lawrence C. Mitchell
发明人： Henry P. Barker , Lawrence C. Mitchell
IPC分类号： C07C37/20 , C07C27/00 , C07C37/00 , C07C39/16 , C07C67/00 , C07C37/44 , C07C37/24
CPC分类号： C07C37/00
摘要： A process is disclosed for the production of 2,2-bis(4-hydroxyphenyl) propane, herein referred to as bisphenol-A, from by-products remaining after purification distillation of bisphenol-A produced from a condensation reaction of phenol and acetone. The process comprises mixing the by-products with phenol and adding anhydrous hydrogen chloride under superatmospheric pressure to the resulting mixture to isomerize those by-products isomerizable to bisphenol-A for subsequent recovery.
摘要翻译：公开了用于由苯酚和丙酮的缩合反应产生的双酚A的纯化蒸馏后残留的副产物生产2,2-双（4-羟基苯基）丙烷（以下称为双酚A）的方法。该方法包括将副产物与苯酚混合并在超大气压下加入无水氯化氢至所得混合物，使可异构化为双酚A的副产物异构化以便随后回收。

9. 发明授权

US3985812A Caustic refining of 2,3,6-trimethylphenol 失效
标题翻译：苛性碱精制2,3,6-三甲基苯酚
公开(公告)号：US3985812A
公开(公告)日：1976-10-12
申请号：US523626
申请日：1974-11-14
申请人： Elsio Del Bel , Donald C. Jones , Martin B. Neuworth
发明人： Elsio Del Bel , Donald C. Jones , Martin B. Neuworth
IPC分类号： B01D11/04 , C07C37/72 , C07C37/38 , C07C37/44
CPC分类号： C07C37/72 , B01D11/0488
摘要： 2,3,6-Trimethylphenol is recovered in high yield and high purity from its admixture with di- and tri- methyl-substituted phenols by subjecting the admixture in a solvent to countercurrent caustic extraction.
摘要翻译：通过将混合物在溶剂中进行逆流苛性萃取，从其与二 - 和三 - 甲基取代的酚的混合物中以高产率和高纯度回收2,3,6-三甲基苯酚。

10. 发明授权

US3957886A Process for the purification of 2,2-bis-(4-hydroxy-3,5-dichlorophenyl)-propane 失效
标题翻译： 2,2-双（4-羟基-3,5-二氯苯基）丙酸的纯化方法
公开(公告)号：US3957886A
公开(公告)日：1976-05-18
申请号：US415830
申请日：1973-11-14
申请人： Karl-Heinrich Meyer
发明人： Karl-Heinrich Meyer
IPC分类号： C07C37/84 , C07C27/00 , C07C37/86 , C07C39/367 , C07C67/00 , C08G64/10 , C07C37/44 , C07C39/16
CPC分类号： C07C37/86 , C07C37/84 , C08G64/10
摘要： A process for the production of very pure 2,2-bis-(4-hydroxy-3,5-dichlorophenyl)-propane (TCB), wherein a solution of TCB in an aromatic hydrocarbon is treated with hot water, followed by crystallization of TCB from the aqueous solution by addition of a halogenated aliphatic hydrocarbon.

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