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1. 发明申请

US20210017102A1 Processes for Converting Aromatic Hydrocarbons via Alkyl-Demethylation 有权
公开(公告)号：US20210017102A1
公开(公告)日：2021-01-21
申请号：US16903009
申请日：2020-06-16
申请人： ExxonMobil Chemical Patents Inc.
发明人： Hari Nair , Meha Rungta , Michel Molinier , Doron Levin , Scott J. Weigel , Michael Salciccioli , John F. Brody
IPC分类号： C07C4/18 , C07C5/27 , C07C6/12 , C07C2/72 , B01J21/04 , B01J23/36
摘要： Alkyl-demethylation of C2+-hydrocarbyl substituted aromatic hydrocarbons can be utilized to treat one or more of a heavy naphtha reformate stream, a hydrotreated SCN stream, a C8 aromatic hydrocarbon isomerization feed stream, a C9+ aromatic hydrocarbon transalkylation feed stream, and similar hydrocarbon streams to produce additional quantity of xylene products.

2. 发明授权

US6100437A Alkylation process of alkyl-benzene with olefin using a sodium-and-potassium catalyst 失效
标题翻译：使用钠和钾催化剂的烷基 - 苯与烯烃的烷基化方法
公开(公告)号：US6100437A
公开(公告)日：2000-08-08
申请号：US113650
申请日：1998-07-10
申请人： David J. Koehl , Edward A. Burt , Patrick T. Ward
发明人： David J. Koehl , Edward A. Burt , Patrick T. Ward
IPC分类号： B01J23/04 , C07C2/72 , C07C2/64 , C07C2/66 , C07C15/067
CPC分类号： B01J23/04 , C07C2/72 , C07C2531/12 , Y02P20/52
摘要： An alkylbenzene is alkylated with an alkene, in the presence of a sodium/potassium alloy catalyst, on a saturated carbon atom which is alpha to the ring at temperatures which are lower than the temperatures used in a current commercial process. In a pre-alkylation reaction, the catalyst is reacted with a compound which has a saturated carbon atom alpha to a double bond in order to form a catalytic species. Higher amounts of catalyst are used in the pre-alkylation reaction than in the analogous reaction of the current commercial process. Following alkylation, the phase which contains the alkylation product is separated from the phase which contains the catalytic species. The process produces less isomeric and other soluble byproducts, and enables the efficacious production of longer chain alkylbenzenes without the formation of insoluble tars characteristic of the current commercial process.
摘要翻译：在钠/钾合金催化剂存在下，烷基苯在饱和碳原子上烷基化，该饱和碳原子在低于当前商业过程中使用的温度的温度下。在预烷化反应中，使催化剂与具有饱和碳原子的双键化合物反应以形成催化物质。在烷基化前反应中使用较多的催化剂比目前商业方法的类似反应。烷基化后，将含有烷基化产物的相与含有催化物质的相分离。该方法产生较少的异构体和其他可溶性副产物，并且能够有效地生产较长链烷基苯而不形成当前商业过程特征的不溶性焦斑。

3. 发明授权

US5977426A Crystallization of 2,6-dimethylnaphthalene 失效
标题翻译： 2,6-二甲基萘结晶
公开(公告)号：US5977426A
公开(公告)日：1999-11-02
申请号：US957871
申请日：1997-10-20
申请人： Thomas G. Smith , John M. Weis , Yenamandra Viswanath
发明人： Thomas G. Smith , John M. Weis , Yenamandra Viswanath
IPC分类号： B01D9/02 , C07B61/00 , C07C2/72 , C07C5/27 , C07C5/31 , C07C5/367 , C07C7/14 , C07C15/24 , C07C15/58
CPC分类号： C07C15/24 , C07C7/14
摘要： A method for recovering crystalline 2,6-dimethylnaphthalene comprising crystallizing in a scraped-wall crystallizer apparatus at crystallization temperature T, a mixture of low melting components, LM, having melting points of 70.degree. F. and below, and high melting components (HM), including 2,6-dimethylnaphthalene, having melting points above 70.degree. F, such that: ##EQU1## where HM is the total weight percent of high melting components, including 2,6-dimethylnaphthalene, in the mixture, and LM is the total weight percent of low melting components in the mixture, and where T is the temperature of the crystallization in degrees Fahrenheit, and where A is at least 1.0.
摘要翻译：一种回收结晶的2,6-二甲基萘的方法，包括在结晶温度T下，在熔融结晶器装置中结晶的熔融点为70°F以下的低熔点组分LM和高熔点组分（HM ），包括熔点高于70°F的2,6-二甲基萘，使得：HM是混合物中高熔点组分（包括2,6-二甲基萘）的总重量百分数，LM是总重量百分比的混合物中的低熔点组分，其中T是以华氏度为单位的结晶温度，其中A至少为1.0。

4. 发明授权

US5952534A Manufacturing of 2,6-dimethylnaphthalene 失效
标题翻译：制造2,6-二甲基萘
公开(公告)号：US5952534A
公开(公告)日：1999-09-14
申请号：US973864
申请日：1998-03-20
申请人： Kari Vahteristo , Erkki Halme , Salme Koskimies , Sigmund M. Csicsery , Markku Laatikainen , Vesa Niemi
发明人： Kari Vahteristo , Erkki Halme , Salme Koskimies , Sigmund M. Csicsery , Markku Laatikainen , Vesa Niemi
IPC分类号： C07C2/56 , C07C2/72 , C07C5/41 , C07C15/24
CPC分类号： C07C15/24 , C07C2/72 , C07C5/412 , C07C5/417 , C07C2521/04 , C07C2521/08 , C07C2521/18 , C07C2523/04 , C07C2523/26 , C07C2523/42 , C07C2527/232 , C07C2529/60
摘要： The invention is related to a process for making 2,6-dimethylnaphthalene from p-xylene and 1- or 2-butene or butadiene via 1-(p-tolyl)-2-methylbutane or 1-(p-tolyl)-2-methylbutane. 2,6-dimethylnaphthalene can be used for making polyethylenenaphthalate.
摘要翻译： PCT No.PCT / FI96 / 00395 Sec。 371日期：1998年3月20日 102（e）1998年3月20日PCT PCT 1996年7月4日PCT公布。出版物WO97 / 02225 日本1997年1月23日本发明涉及通过1-（对甲苯基）-2-甲基丁烷或1-（对甲苯基）-2-甲基丁烷从对二甲苯和1-或2-丁烯或丁二烯制备2,6-二甲基萘的方法，甲苯基）-2-甲基丁烷。 2,6-二甲基萘可用于制造聚萘二甲酸乙二醇酯。

5. 发明授权

US5705725A Aromatic alkali metal alkene addition process 失效
标题翻译：芳香碱金属烯烃加成工艺
公开(公告)号：US5705725A
公开(公告)日：1998-01-06
申请号：US770004
申请日：1991-10-02
申请人： Ted M. Pettijohn , Mark E. Lashier , Henry L. Hsieh
发明人： Ted M. Pettijohn , Mark E. Lashier , Henry L. Hsieh
IPC分类号： C07C2/30 , C07C2/72 , C07C2/66 , C07C2/34 , C07C2/68
CPC分类号： C07C2/30 , C07C2/72 , C07C2531/12
摘要： A process is provided comprising: (a) contacting a hydrocarbyl lithium with an alkali metal hydrocarbyloxide in the presence of an aromatic compound; and thereafter (b) recovering an aromatic alkali metal compound; and thereafter (c) contacting said aromatic alkali metal compound with an alpha-olefin. Optionally, a catalytic support is also present during steps a, b, and c.
摘要翻译：提供了一种方法，其包括：（a）在芳族化合物的存在下使烃基锂与碱金属烃氧化物接触; （b）回收芳族碱金属化合物; 然后（c）使所述芳族碱金属化合物与α-烯烃接触。任选地，在步骤a，b和c期间也存在催化载体。

6. 发明授权

US5659097A Process for producing a monoalkenyl aromatic hydrocarbon compound 失效
标题翻译：单链烯基芳烃化合物的制造方法
公开(公告)号：US5659097A
公开(公告)日：1997-08-19
申请号：US371301
申请日：1995-01-11
申请人： Norio Fushimi , Makoto Takagawa
发明人： Norio Fushimi , Makoto Takagawa
IPC分类号： B01J23/04 , B01J31/00 , B01J31/02 , C07C2/72 , C07C15/40 , C07C15/46 , C07C5/09
CPC分类号： C07C15/40 , B01J23/04 , B01J31/00 , C07C2/72 , C07C2521/04 , C07C2521/06 , C07C2521/18 , C07C2523/02 , C07C2523/04 , C07C2527/167 , C07C2527/232
摘要： A process for producing a monoalkenyl aromatic hydrocarbon which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom at the .alpha.-position of a side chain (such as o-xylene) with a conjugated diene having 4 or 5 carbon atoms in the presence of a catalyst slurry prepared by adding an aromatic hydrocarbon compound to a catalyst comprising a alkali metal and an alkali metal compound. In the aforementioned process, it is particularly effective that the catalyst slurry is prepared by adding the aromatic hydrocarbon compound after the aromatic hydrocarbon compound has been deoxygenated and dehydrated by distillation, and the catalyst slurry thus prepared is supplied to the reaction system. According to the aforementioned process, an industrially useful monoalkenyl aromatic hydrocarbon compound, such as a monoalkenylbenzene, can be produced at a high selectivity, in a high yield, and with enhanced safety and stability for a long time.
摘要翻译：一种单链烯基芳族烃的制造方法，其包括在侧链（例如邻二甲苯）的α-位上具有至少一个氢原子的芳族烃化合物的侧链与具有4或5个碳原子的共轭二烯链烯基化在通过将芳族烃化合物加入到包含碱金属和碱金属化合物的催化剂中制备的催化剂浆料存在下进行。在上述方法中，特别有效的是，通过在芳烃化合物已经脱氧并通过蒸馏脱水之后，通过加入芳族烃化合物制备催化剂浆料，并将由此制备的催化剂浆料供应到反应体系。根据上述方法，工业上可用的单链烯基芳烃化合物如单烯基苯可以高选择性，高产率，长时间提高安全性和稳定性而制备。

7. 发明授权

US5527977A Process for producing monoalkenyl aromatic hydrocarbon compound 失效
标题翻译：单链烯基芳烃化合物的制备方法
公开(公告)号：US5527977A
公开(公告)日：1996-06-18
申请号：US266145
申请日：1994-06-27
申请人： Makoto Takagawa , Kenichi Nakamura , Kinji Kato , Akio Hashimoto , Takayo Sasaki
发明人： Makoto Takagawa , Kenichi Nakamura , Kinji Kato , Akio Hashimoto , Takayo Sasaki
IPC分类号： B01J23/04 , C07C2/72 , C07C15/44
CPC分类号： C07C15/44 , B01J23/04 , C07C2/72 , C07C2523/02 , C07C2523/04
摘要： Their is disclosed a process for producing a monoalkenyl aromatic hydrocarbon compound (e.g. 5-(o-tolyl)-2-pentene) which comprises the steps of alkenylating a side chain of an aromatic hydrocarbon compound having at lease one hydrogen atom bonded to .alpha.-position of the side chain (e.g. alkylbenzene) by the use of a conjugated diene having 4 to 5 carbon atoms (e.g. 1-3 butadiene) in the presence an alkali metal-based catalyst supported on a carrier; removing at least part of the catalyst from the resultant reaction product by separating the same; inactivating and optionally removing the catalyst contained in the reaction product; and thereafter distilling the reaction produce in liquid form to separate and recover the objective monoalkenyl aromatic hydrocarbon compound. By virtue of using the above specific method, the process can prevent the change in quality and properly of the objective product even during atmospheric distillation, produce the objective product with high purity in high recovery race and operate a distillation column during a long stable period of time.
摘要翻译：公开了一种制备单链烯基芳族烃化合物（例如5-（邻甲苯基）-2-戊烯）的方法，该方法包括使具有至少一个氢原子的芳族烃化合物的侧链链烯基化的步骤，在负载在载体上的碱金属类催化剂存在下，通过使用具有4至5个碳原子的共轭二烯（例如1-3个丁二烯），侧链（例如烷基苯）的位置; 通过分离其从所得反应产物中除去至少一部分催化剂; 灭活和任选地除去反应产物中所含的催化剂; 然后以液体形式蒸馏反应产物以分离和回收目标单链烯基芳族烃化合物。通过使用上述具体方法，该方法即使在常压蒸馏中也可以防止目标产物的质量变化和适当的改变，在高回收率种族中生产高纯度的目的产物，并在长时间稳定的时间段内操作蒸馏塔时间。

8. 发明授权

US5444172A Process for producing a monoalkenyl aromatic hydrocarbon compound 失效
标题翻译：单链烯基芳烃化合物的制造方法
公开(公告)号：US5444172A
公开(公告)日：1995-08-22
申请号：US170493
申请日：1993-12-20
申请人： Makoto Takagawa , Kenji Inamasa , Norio Fushimi , Akio Hashimoto , Takayo Sasaki
发明人： Makoto Takagawa , Kenji Inamasa , Norio Fushimi , Akio Hashimoto , Takayo Sasaki
IPC分类号： B01J23/04 , B01J27/232 , C07B61/00 , C07C2/72 , C07C15/44
CPC分类号： B01J27/232 , B01J23/04 , C07C2/72 , C07C2521/04 , C07C2523/04 , C07C2527/232 , Y02P20/52
摘要： There is disclosed a process for producing a monoalkenylbenzene which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at .alpha.-position of the side chain (such as xylene) with a conjugated diene having 4 or 5 carbon atoms (such as butadiene) in the presence of a catalyst produced by calcining the mixture of a basic potassium compound and alumina and then heat treating the calcined product together with metallic sodium in an atmosphere of an inert gas. According to the aforesaid process, an industrially useful monoalkenylbenzene can be produced in high yield at a low cost with enhanced safety.
摘要翻译：公开了一种单链烯基苯的制备方法，该方法包括将具有至少一个在侧链（例如二甲苯）的α位键合的氢原子的芳族烃化合物的侧链与具有4或5个碳原子的共轭二烯链烯基化（例如丁二烯）在通过煅烧碱性钾化合物和氧化铝的混合物产生的催化剂存在下，然后在惰性气体气氛中将煅烧产物与金属钠一起热处理。根据上述方法，可以低成本，高安全性地以高产率生产工业上有用的单烯基苯。

9. 发明授权

US5436381A Process for producing a monoalkenyl aromatic hydrocarbon compound 失效
标题翻译：单链烯基芳烃化合物的制造方法
公开(公告)号：US5436381A
公开(公告)日：1995-07-25
申请号：US170495
申请日：1993-12-20
申请人： Makoto Takagawa , Kinji Kato , Norio Fushimi , Ko Kedo
发明人： Makoto Takagawa , Kinji Kato , Norio Fushimi , Ko Kedo
IPC分类号： B01J23/04 , C07B61/00 , C07C2/66 , C07C2/72 , C07C15/44
CPC分类号： B01J23/04 , C07C2/72 , C07C2521/04 , C07C2523/04
摘要： There is disclosed a process for producing a monoalkenylbenzene which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at .alpha.-position of the side chain (such as xylene) with a conjugated diene having 4 or 5 carbon atoms (such as butadiene) in the presence of a catalyst produced by calcining the mixture of potassium hydroxide and aluminum hydroxide and then heat treating the calcined product together with metallic sodium in an atmosphere of an inert gas. According to the aforesaid process, an industrially useful monoalkenylbenzene can be produced in high yield at a low cost with enhanced safety.
摘要翻译：公开了一种单链烯基苯的制备方法，该方法包括将具有至少一个在侧链（例如二甲苯）的α位键合的氢原子的芳族烃化合物的侧链与具有4或5个碳原子的共轭二烯链烯基化（例如丁二烯）在通过煅烧氢氧化钾和氢氧化铝的混合物产生的催化剂存在下，然后在惰性气体气氛中与金属钠一起热处理煅烧产物。根据上述方法，可以低成本，高安全性地以高产率生产工业上有用的单烯基苯。

10. 发明授权

US5354899A Production process of 1,4,5,8-naphthalene tetracarboxylic acid 失效
标题翻译： 1,4,5,8-萘四羧酸的制备方法
公开(公告)号：US5354899A
公开(公告)日：1994-10-11
申请号：US72242
申请日：1993-06-04
申请人： Toshio Sato , Ikuo Ito , Kyoichi Takeda
发明人： Toshio Sato , Ikuo Ito , Kyoichi Takeda
IPC分类号： C07C2/72 , C07C5/31 , C07C5/367 , C07C13/48 , C07C15/24 , C07C15/44 , C07C51/21 , C07C51/265 , C07C63/40 , C07C63/48
CPC分类号： C07C5/367 , C07C2/72 , C07C51/265 , C07C2523/04 , C07C2531/02 , C07C2531/26
摘要： There is disclosed a mass production process of 1,4,5,8-naphthalene tetracarboxylic acid with high collection efficiency. In the presence of an alkaline metallic catalyst, 1,3-butadiene was added to the ethyl radicals of ethyl-p-xylene, and cyclized to 1,4,5,8-tetramethyl-1,2,3,4-tetrahydronaphthalene which was further dehydrogenated and oxidized to obtain 1,4,5,8-naphthalene tetracarboxylic acid, so that a constant supply of inexpensive 1,4,5,8-naphthalene tetracarboxylic acid can be achieved as an intermediate raw material for dye, pigment, resins, or the like.
摘要翻译：公开了具有高收集效率的1,4,5,8-萘四羧酸的批量生产方法。在碱金属催化剂的存在下，将1,3-丁二烯加入到乙基对二甲苯的乙基中，并环化成1,4,5,8-四甲基-1,2,3,4-四氢化萘，其中进一步脱氢氧化得到1,4,5,8-萘四羧酸，从而可以实现廉价的1,4,5,8-萘四羧酸的稳定供应，作为染料，颜料，树脂等。

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