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公开(公告)号：US20200031741A1
公开(公告)日：2020-01-30
申请号：US16593125
申请日：2019-10-04
发明人： Lubo Zhou , Shuguang Zhang
摘要： Processes and apparatus for making xylenes and phenol are described. Phenol and alkyl phenols are separated from coal derived liquid. The phenol is separated from the alkyl phenols. The alkyl phenols can be reacted with aromatics such as benzene and toluene to make xylenes. The xylenes and other aromatics are then separated from the phenol and alkyl phenols. Para-xylene is separated and recovered using a xylene separation process, and meta-xylene and ortho-xylene are optionally converted to para-xylene through an isomerization reaction.
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公开(公告)号：US5414156A
公开(公告)日：1995-05-09
申请号：US245091
申请日：1994-05-10
申请人： Jung H. Cho , Kie H. Nam , Wan S. Kim
发明人： Jung H. Cho , Kie H. Nam , Wan S. Kim
IPC分类号： C07C37/00 , C07C37/055 , C07C37/48 , C07C39/06 , C07C45/40 , C07D307/83 , C07C37/50 , C07C37/11
CPC分类号： C07D307/83 , C07C37/055 , C07C41/16 , C07C41/18 , C07C45/40
摘要： This invention relates to the process for producing ortho-isopropylated phenol derivatives having following general formula (VIII). ##STR1## (in the above formula, R.sub.1 is a hydrogen or a low alkyl group of C.sub.1 -C.sub.4)A process for producing ortho-isopropylated phenol derivatives (VIII) of the present invention is characterized by obtaining position isomer desired by means of Claisen rearrangement of phenyl allyl ether without catalyst in atmosphere, and then obtaining only one isomer by oxidation and reduction of the above-obtained position isomer. According to the present invention, ortho-alkylated phenol derivatives (VIII) having high purity at low temperature and low pressure can be prepared without producing a by-product and requirement of the complicated separation procedure.
摘要翻译： 本发明涉及具有以下通式（VIII）的邻位异丙基化苯酚衍生物的制备方法。 （VIII）（式中，R1为氢或C1-C4的低级烷基）本发明的邻位异丙基化苯酚衍生物（Ⅷ）的制造方法的特征在于， 在大气中没有催化剂的苯基烯丙基醚的Claisen重排方法，然后通过氧化还原上述获得的位置异构体获得一种异构体。 根据本发明，可以制备在低温低压下具有高纯度的原烷基化酚衍生物（VIII），而不产生副产物和复杂分离方法的要求。
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公开(公告)号：US5015784A
公开(公告)日：1991-05-14
申请号：US389354
申请日：1989-08-03
申请人： Udo Rudolph , Claus Wulff
发明人： Udo Rudolph , Claus Wulff
IPC分类号： B01J31/08 , C07B61/00 , C07C37/00 , C07C37/48 , C07C39/14 , C07C39/15 , C07C39/16 , C07C39/367
CPC分类号： C07C37/48
摘要： This invention relates to a process for the preparation of bisphenols and bisphenol mixtures by the isomerization of bisphenols on acid or alkaline catalysts in the presence of the corresponding phenols.
摘要翻译： 本发明涉及通过在相应的酚存在下在酸或碱催化剂上双酚的异构化制备双酚和双酚混合物的方法。
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公开(公告)号：US4503269A
公开(公告)日：1985-03-05
申请号：US534225
申请日：1983-09-21
摘要： An improvement in a process for the isomerization of cresols may be obtained by effecting the isomerization reaction of a cresol in the presence of a crystalline aluminosilicate zeolite catalyst and added hydrogen. The added hydrogen will provide stability and longer life to the catalyst as well as a more stable selectivity to the desired isomers. The isomerization reaction is effected at temperatures ranging from about 250.degree. to about 450.degree. C. and pressures ranging from 2 to about 75 atmospheres in the presence of added hydrogen, said hydrogen being present in a mole ratio in the range of from about 1:1 to about 10:1 moles of hydrogen per mole of cresol.
摘要翻译： 通过在结晶硅铝酸盐沸石催化剂和加入的氢的存在下进行甲酚的异构化反应，可以获得甲酚异构化方法的改进。 添加的氢气将为催化剂提供稳定性和更长的寿命以及对所需异构体的更稳定的选择性。 异构化反应在约250至约450℃的温度和在加入的氢气存在下从2至约75个大气压的压力下进行，所述氢以约1：1的摩尔比存在， 每摩尔甲酚1至约10：1摩尔氢。
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公开(公告)号：US4492660A
公开(公告)日：1985-01-08
申请号：US529466
申请日：1983-09-06
申请人： Silvio L. Giolito
发明人： Silvio L. Giolito
摘要： A process for producing tert-butylphenyl diphenyl phosphate which is stable at low temperature by a process wherein phenol is butylated to produce tert-butylphenol which is isomerized to produce mixed meta and para isomers thereof, and which thereafter is alkylated with isobutylene to produce tert-butylphenol having a C.sub.4 /.phi. ratio of about 0.62. The tert-butylphenol is then phosphorylated to the tert-butylphenyl diphenyl phosphate meta/para mixture with phosphorus oxychloride. The disclosed process provides a tert-butylphenyl diphenyl phosphate which will not freeze or gel at low temperatures.
摘要翻译： 一种制备叔丁基苯基二苯基磷酸酯的方法，该方法通过以下方法在低温下稳定，其中苯酚被丁基化以产生叔丁基苯酚，其被异构化以产生其混合的间位和对位异构体，然后用异丁烯进行烷基化， C4 / Phi比为约0.62的丁基苯酚。 然后将叔丁基苯酚用磷酰氯磷酸化成叔丁基苯基二苯基磷酸酯/对 - 混合物。 所公开的方法提供了在低温下不会冷冻或凝胶化的叔丁基苯基二苯基磷酸酯。
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公开(公告)号：US4465871A
公开(公告)日：1984-08-14
申请号：US521479
申请日：1983-08-08
申请人： Bruce E. Firth , Terry J. Rosen
发明人： Bruce E. Firth , Terry J. Rosen
IPC分类号： C07C37/055 , C07C37/48 , C07C43/205 , C07C39/04 , C07C37/00
CPC分类号： C07C37/055 , C07C41/06 , C07C41/32
摘要： Tertiary alkyl phenyl ethers may be induced to undergo thermal rearrangement on an alumina catalyst to afford the isomeric ortho-t-alkylphenol. Such rearrangement generally occurs under milder conditions than does the alkylation of a phenol with an olefin using the same alumina as an alkylating catalyst. The rearrangement remains regioselective even when the phenyl ring bears an alkoxy group, hence affords a good preparative route to such materials as 2-t-butyl-4-methoxyphenol.
摘要翻译： 可以诱导叔烷基苯基醚在氧化铝催化剂上进行热重排，得到异构邻位叔烷基苯酚。 这种重排通常在比使用与烷基化催化剂相同的氧化铝的烯烃与烯烃的烷基化的温和条件下进行。 即使苯环带有烷氧基，重排仍然是区域选择性的，因此为2-叔丁基-4-甲氧基苯酚提供了良好的制备途径。
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7.发明授权
公开(公告)号：US4424382A
公开(公告)日：1984-01-03
申请号：US383940
申请日：1982-06-01
申请人： George A. Olah
发明人： George A. Olah
IPC分类号： C07C37/00 , C07C37/055 , C07C37/08 , C07C37/14 , C07C37/16 , C07C37/18 , C07C37/48 , C07C39/06
CPC分类号： C07C37/16 , C07C37/055 , C07C37/0555 , C07C37/08 , C07C37/14 , C07C37/18 , C07C37/48
摘要： Resorcinol is prepared by an improved process through superacid (such as perfluorinated alkanesulfonic superacids of one to eighteen carbon atoms or polymeric perfluorinated resinsulfonic acids, such as Nafion-H) catalyzed cleavage-rearrangement reaction of meta-isopropylphenol hydroperoxide in the form of its protected ether or ester derivatives, including readily cleavable and reusable trimethylsilyl and trifluoromethanesulfonyl derivates. Part of the process is the preparation of needed meta-isopropylphenol in high purity free of other isomers by treating any mixture of isopropylphenol isomers in an excess of anhydrous hydrogen fluoride or a perfluorinated alkanesulfonic superacid of one to eighteen carbon atoms and a Lewis acid fluoride or by alkylating (transalkylating) phenol with a propyl alkylating agent in the presence of the aforementioned superacid systems.
摘要翻译： 间苯二酚通过超强酸（例如1至18个碳原子的全氟化烷烃磺酸超强酸或聚合全氟磺酸磺酸，如Nafion-H）催化的经过保护的醚形式的间异丙基苯酚氢过氧化物的裂解重排反应， 或酯衍生物，包括易裂解和可重复使用的三甲基甲硅烷基和三氟甲磺酰基衍生物。 部分方法是通过处理过量的无水氟化氢或1至18个碳原子的全氟化烷烃磺酸超酸和路易斯酸氟化物的任何异丙基苯酚异构体的混合物，制备所需的高纯度的不含异构体的间 - 异丙基苯酚，或 通过在上述超酸体系的存在下用丙基烷基化剂烷基化（烷基转移）苯酚。
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公开(公告)号：US4060560A
公开(公告)日：1977-11-29
申请号：US670772
申请日：1976-03-26
申请人： Bruce Eugene Leach
发明人： Bruce Eugene Leach
IPC分类号： B01J21/00 , B01J23/00 , C07B61/00 , C07C27/00 , C07C37/48 , C07C39/07 , C07C67/00 , C07C39/04
CPC分类号： C07C37/48 , Y02P20/584
摘要： Xylenols are disproportionated with phenol over catalysts such as tungsten oxide promoted magnesium oxide, preferably in the presence of water. The reaction selectively removes methyl groups ortho to the hydroxyl group. Catalysts which can be used are magnesium oxide promoted with zinc oxide, tungsten oxide, and uranium oxide.
摘要翻译： 优选在存在水的情况下，二氧化苯酚与苯酚在催化剂如氧化钨促进的氧化镁之间进行歧化。 该反应选择性除去羟基的邻位甲基。 可以使用的催化剂是用氧化锌，氧化钨和氧化铀促进的氧化镁。
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公开(公告)号：US3655778A
公开(公告)日：1972-04-11
申请号：US3655778D
申请日：1968-12-27
申请人： CHEVRON RES
发明人： KOHN GUSTAVE K
摘要： METHOD FOR ISOMERIZING MONOARYLPHENOLS AND MONOARLYMONALKYL PHENOLS TO CORRESPONDING ISOMERS IN WHICH THE POSITION OF THE ARYL GROUP IS CHANGED BY HEATING THE MONARYLPHENOL OR MONOARYL MONOALKYLPHENOL TO ABOUT 160-250*C. IN THE PRESENCE OF AN ACID-ACTIVATED MONTMORILLONITE CLAY.
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