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51. 发明公开

EP0780354A1 Process for the alkylation of aromatic compounds 失效
标题翻译： Verfahren zur Alkylierung von aromatischen Verbindungen
公开(公告)号：EP0780354A1
公开(公告)日：1997-06-25
申请号：EP96119041.0
申请日：1996-11-28
申请人： ENICHEM S.p.A.
发明人： Bencini, Elena , Goffredi, Gino , Andreoli, Eugenio
IPC分类号： C07C2/66
CPC分类号： C07C15/02 , C07C2/66 , C07C7/00 , C07C7/005 , C07C2529/06
摘要： Process for the alkylation of aromatic compounds which comprises contacting an olefin with an aromatic hydrocarbon in the presence of a zeolite and under conventional operating conditions, characterized in that the aromatic hydrocarbon, before the alkylation, is:

a) treated to eliminate the oxygen dissolved therein; and/or
b) percolated through a fixed bed consisting of particles of alumina modified with silver.
摘要翻译：芳族化合物的烷基化方法，其包括在沸石存在下和在常规操作条件下使烯烃与芳烃接触，其特征在于芳烷烃在烷基化之前为：a）处理以除去其中溶解的氧 ; 和/或b）通过由银改性的氧化铝颗粒组成的固定床渗透。

52. 发明公开

EP0708072A1 Verfahren zur Gewinnung von reinem Benzol und reinem Toluol 失效
标题翻译：一种回收纯的苯和甲苯纯过程
公开(公告)号：EP0708072A1
公开(公告)日：1996-04-24
申请号：EP95112179.7
申请日：1995-08-03
申请人： Krupp Koppers GmbH
发明人： Leisse, Martin , Vollmer, Hans-Jürgen , Ranke, Uwe
IPC分类号： C07C15/04 , C07C15/06 , C07C7/08 , C10G7/08
CPC分类号： C07C7/08 , B01D3/40 , C07C7/005 , Y10S203/20 , C07C15/04 , C07C15/06
摘要： Die Erfindung betrifft ein Verfahren zur Gewinnung von reinem Benzol und reinem Toluol aus einem aromatische Kohlenwasserstoffe enthaltenden Vorprodukt, wobei das Vorprodukt in einer destillativen Stabilisierungsverfahrensstufe (1) von Gasen befreit wird, wobei das stabilisierte Vorprodukt in ein benzolreiches und toluolreiches Zwischenprodukt aufgetrennt wird, wobei das benzolreiche und das toluolreiche Zwischenprodukt einer Extraktivdestillationsverfahrensstufe (2) zugeführt und getrennt verschiedenen Böden einer Extraktivdestillationskolonne (4) aufgegeben werden, wobei eine Mischung aus reinem Benzol, reinem Toluol und Extraktionsmittel dem Sumpf (3) der Extraktivdestillationskolonne (4) entnommen wird und wobei das Extraktionsmittel in einer Stripperverfahrensstufe (5) von reinem Benzol und von reinem Toluol abgetrennt und zur Extraktivdestillationsverfahrensstufe (2) rückgeführt wird. Sie ist dadurch gekennzeichnet, daß die destillative Stabilisierungsverfahrensstufe (1) zur Auftrennung des Vorprodukts in das benzolreiche und das toluolreiche Zwischenprodukt eingerichtet ist und daß einerseits das benzolreiche Zwischenprodukt direkt aus der destillativen Stabilisierungsverfahrensstufe (1) der Extraktivdestillationsverfahrensstufe (2) zugeführt wird und andererseits das toluolreiche Zwischenprodukt vor der Zufuhr zur Extraktivdestillationsverfahrensstufe (2) in einer Vordestillationsverfahrensstufe (6) von hochsiedenden Komponenten abgereichert wird.
摘要翻译：本发明涉及一种用于纯苯并从一个芳族含烃前体纯甲苯的回收方法，其中所述在一个蒸馏稳定化处理阶段（1）前体从气体中解脱出来，其中所述稳定化的前体被分离成苯丰富且toluolreiches中间，其中，所述苯丰富和供给的甲苯的中间一个Extraktivdestillationsverfahrensstufe（2）的和分离的不同的土壤的萃取蒸馏塔（4）的部分，其特征在于，纯苯，纯甲苯的混合物和萃取贮槽（3）的萃取蒸馏塔（4）被移除，并且其中所述萃取剂在纯苯和甲苯纯和Extraktivdestillationsverfahrensstufe（2）被回收的汽提过程阶段（5）分离。它的特征在于，富含苯的初步产物分离成所述蒸馏稳定化处理阶段（1）和甲苯中间体由式（1）的Extraktivdestillationsverfahrensstufe的（2）供入蒸馏稳定化处理阶段和在另一方面的甲苯附设于一方面富含苯的中间产物直接（2）在一个Vordestillationsverfahrensstufe被供应到Extraktivdestillationsverfahrensstufe之前中间体（6）被耗尽的高沸点组分。

53. 发明授权

EP0626935B1 VERFAHREN ZUM AUFTRENNEN EINES IM WESENTLICHEN AUS WASSERSTOFF, METHAN UND C 3/C 4-KOHLENWASSERSTOFFEN BESTEHENDEN EINSATZSTROMES. 失效
标题翻译：方法用于将基本从氢，甲烷和的C 3 / C 4烃类现有用途CURRENT。
公开(公告)号：EP0626935B1
公开(公告)日：1995-10-11
申请号：EP93909969.3
申请日：1993-05-12
申请人： Linde Aktiengesellschaft
发明人： BAUER, Heinz
IPC分类号： C07C7/00
CPC分类号： F25J3/0219 , C01B3/50 , C01B2203/048 , C07C7/005 , F25J3/0233 , F25J3/0242 , F25J3/0247 , F25J3/0252 , F25J2200/02 , F25J2200/74 , F25J2205/02 , F25J2205/04 , F25J2205/82 , F25J2210/12 , F25J2235/60 , F25J2245/02 , F25J2270/02 , F25J2270/04
摘要： A process for separating an intake flow consisting essentially of hydrogen, methane and C3/C4 hydrocarbons which has previously been subjected to a pretreatment, e.g. dehydration, after which the intake flow is taken through an at least single-stage partial condensation and separation into a C3/C4 hydrocarbon-rich fraction and an H2/CH4 fraction, whereafter a partial flow of the H2/CH4 fraction is mixed with the intake flow which has not yet been pretreated. The H2/CH4 gas fraction drawn from the first separator (S1) is divided into two partial flows (10, 17), the first partial flow (10) with the liquid fraction (W2) from the first separator (S1), after partial condensation (W2) being taken to a second separator (S2), the C3/C4 hydrocarbon-rich liquid fraction (16) drawn from the base of the second separator is taken with the second partial flow of the H2/CH4 gas fraction (17) from the first separator (S1) into a stripper column (S3), a highly pure H2-rich gas fraction (13) is drawn off from the head of the second separator (S2) and, after evaporation in heat exchanger (W2) against process flows to be cooled, is mixed with the intake flow (2, 2a, 2b) before its pretreatment, a C3/C4-rich product fraction (20) is drawn off from the base of the stripper column (S3) and a lower-purity H2-rich gas fraction (18) is drawn off from the head of the stripper column (S3).

54. 发明公开

EP0646104A1 PROCESS FOR IMPROVING PURITY OF $i(PARA)-XYLENE PRODUCT 失效
标题翻译：用于改善对二甲苯的纯度。
公开(公告)号：EP0646104A1
公开(公告)日：1995-04-05
申请号：EP93911386.0
申请日：1993-05-24
申请人： EXXON CHEMICAL PATENTS INC.
发明人： OU, John, Di-Yi , HELMKE, Harold, William, Jr. , PILLIOD, Dana, Lynn
IPC分类号： B01J21 , B01J27 , B01J29 , B01J31 , C07C7 , C07C15
CPC分类号： C07C7/14875 , C07C7/005 , C07C7/14883 , Y02P20/52 , C07C15/08
摘要： A process for producing 99.5+ wt.% para-xylene by selective alkylation comprises providing an intermediate product having 99.0 to 99.8 wt.% purity and reacting it with an alkylating agent. The agent preferably has at least one tertiary butyl moiety and is reacted in the presence of an acidic catalyst under conditions where the catalyst is in good molecular contact with the non-para-xylene isomers. The catalyst may be a high surface area acidic heterogeneous catalyst such as a proton-exchanged zeolite. Upon distillation, para-xylene is recovered in 99.5 wt.% purity or higher. The selective alkylation gives little or no alkylation of the para-xylene, the most predominant species, and very little or no isomerization to the other, non-desirable isomers.

55. 发明授权

EP0362857B1 Verfahren und Vorrichtung zur Aufarbeitung eines C2-Stromes 失效
标题翻译：方法和设备工作了C2电流。
公开(公告)号：EP0362857B1
公开(公告)日：1993-12-29
申请号：EP89118526.6
申请日：1989-10-05
申请人： Linde Aktiengesellschaft
发明人： Haehn, Peter Clemens, Dipl.-Ing.
IPC分类号： C07C11/04 , C07C7/11
CPC分类号： C07C7/04 , C07C7/005

56. 发明公开

EP0574999A1 Process for separating mixtures of aromatic C8 hydrocarbons 失效
标题翻译：维尔法赫恩zur Trennung von aromatischen C8-Kohlenwasserstoffmischungen。
公开(公告)号：EP0574999A1
公开(公告)日：1993-12-22
申请号：EP93201693.4
申请日：1993-06-12
申请人： ENICHEM S.p.A.
发明人： PARET Giancarlo , PALUDETTO Renato
IPC分类号： C07C7/13 , C07C15/067
CPC分类号： C07C7/005 , C07C15/067
摘要： A processing cycle for separating C₈ aromatics (5) (mixtures of ortho-, para-, meta-xylene and ethylbenzene) is disclosed, in which a first subdivision (1) of the mixture is performed into two streams (6,12) respectively constituted of: para-xylene and ethylbenzene the first one (6); meta- and ortho-xylene the second one (12), followed by a separation of the first stream (6) by rectification (2), during which ethylbenzene (7) within specifications is obtained as the overhead fraction, with the second stream (12) being also sent to a separation by rectification (4), with ortho-xylene (14) within specifications being obtained as the bottom fraction: the possible content of C₉ species can be furthermore removed by subsequent distillation.
摘要翻译：公开了用于分离C8芳族化合物（5）（邻 - ，对 - ，间 - 二甲苯和乙苯的混合物）的处理循环，其中混合物的第一细分（1）分别进行两个流（6,12）构成：对二甲苯和乙苯第一（6）; （12），然后通过精馏（2）分离第一流（6），在此期间获得规格内的乙苯（7）作为塔顶馏分，第二料流（ 12）也通过精馏（4）进行分离，得到作为底部馏分的规格内的邻二甲苯（14）：可以通过随后的蒸馏进一步除去C9物质的可能含量。

57. 发明公开

EP0530966A2 Method of separating isobutylene from a c-4 hydrocarbon fraction 失效
$Method of separating isobutylene from a c-4 hydrocarbon fraction$
标题翻译： Methode zur Abtrennung von Isobutylen aus einer C-4 Kohlenwasserstoffraktion。
公开(公告)号：EP0530966A2
公开(公告)日：1993-03-10
申请号：EP92306773.0
申请日：1992-07-23
申请人： TEXACO CHEMICAL COMPANY
发明人： Knifton, John Frederick
IPC分类号： C07C7/148 , C07C11/09
CPC分类号： C07C41/06 , C07C7/005 , C07C7/14891 , C07C11/09 , C07C43/13
摘要： A two-step method for separating isobutylene from a C-4 hydrocarbon fraction comprising:

(a) reacting the C-4 fraction with a glycol in the presence of a catalyst at a temperature of 60°C to 160°C to give a corresponding glycol mono-t-butyl ether, and subsequently
(b) reacting the intermediate product over the same catalyst at a temperature of between 100°C and 220°C to produce the isolated isobutylene.

The catalyst may be a heteropoly acid on an inert support or an acidic montmorillonite clay.
摘要翻译：用于从C-4烃馏分中分离异丁烯的两步法包括：（a）在催化剂存在下，在60℃至160℃的温度下使C-4馏分与二醇反应，得到相应的乙二醇单叔丁基醚，随后（b）使该中间产物在相同的催化剂上在100℃-220℃的温度下反应，生成分离的异丁烯。催化剂可以是惰性载体或酸性蒙脱石粘土上的杂多酸。

58. 发明公开

EP0383793A4 PROCESS TO PRODUCE AROMATICS OF LOW ACID-WASH COLOR 失效
标题翻译：生产低酸洗颜料的方法
公开(公告)号：EP0383793A4
公开(公告)日：1990-09-26
申请号：EP88909015
申请日：1988-09-15
申请人： THE DOW CHEMICAL COMPANY
发明人： DURHAM, GEORGE, RICHARD , HEBERT, RANDY, STEVENS
IPC分类号： B01J23/44 , C07B61/00 , C07C7/00 , C07C7/163 , C07C15/04
CPC分类号： C07C7/005 , C07C7/163 , C07C15/00
摘要： This invention relates to Nitration Grade benzene made from a benzene stream with impurities including olefins by first fractionally distilling the benzene to a purity of at least 99 mole percent and subsequently passing the stream in a liquid phase in the presence of hydrogen through a hydrogenation step with a palladium catalyst under conditions such that substantially all olefins remaining in the stream are hydrogenated to paraffins.

59. 发明公开

EP0336564A1 Process for separating methyl derivatives of naphthalene according to crystallization under pressure 失效
标题翻译： Verfahren zur Abtrennung vonMethylabkömmlingenvon Naphthalen durch Druckkristallisierung。
公开(公告)号：EP0336564A1
公开(公告)日：1989-10-11
申请号：EP89302250.9
申请日：1989-03-07
申请人： Showa Shell Sekiyu Kabushiki Kaisha , KOBE STEEL LIMITED
发明人： Koide, Shunichi c/o Showa Shell Sekiyu K.K. , Aihara, Shinji c/o Showa Shell Sekiyu K.K. , Takeshita, Hiroshi c/o Showa Shell Sekiyu K.K. , Tanabe, Harumasa , Takao, Masami , Hatakeyama, Hitoshi
IPC分类号： C07C15/24
CPC分类号： C07C7/14 , C07C7/005 , C07C7/177 , C07C15/24
摘要： The invention intends to separating a methyl derivative of naphthalene (2,6-dimethyl naphthalene or 2-methyl naphthalene) from a mixture material in a high purity more than 98 weight %. The starting material is preliminarily treated at a raised temperature up to 220°C at the highest and with LHSV of 0.1 - 6 Hr⁻¹ in the presence of an acid catalyst usually used for olefin polymerization. The treated material is distillated to remove the polymerized impurities and to raise the naphthalene derivative content at least up to 50 weight %. And then the obtained material is subjected to the crystallization under a pressure of 500 - 2500 kgf/cm² at a temperature of 80 - 150°C (for 2,6-DMN) or 10 - 35°C (for 2-MN).
摘要翻译：本发明意图从高纯度高于98重量％的混合物中分离萘（2,6-二甲基萘或2-甲基萘）的甲基衍生物。起始材料在通常用于烯烃聚合的酸催化剂存在下，在高达220℃的升高温度下以0.1〜6Hr <1的LHSV进行预处理。经处理的材料被蒸馏以除去聚合的杂质并使萘衍生物含量至少高达50重量％。然后将得到的材料在500〜2500kgf / cm 2的压力下在80-150℃（对于2,6-DMN）或10-35℃（对于2- MN）。

60. 发明授权

EP0211560B1 Gas purification 失效
标题翻译：气体净化
公开(公告)号：EP0211560B1
公开(公告)日：1989-09-20
申请号：EP86305623.0
申请日：1986-07-22
申请人： IMPERIAL CHEMICAL INDUSTRIES PLC
发明人： Denny, Patrick John , Carnell, Peter John Herbert
IPC分类号： B01D53/02 , C10K1/20 , C07C9/04
CPC分类号： C07C7/005 , B01D53/02 , C07C7/14841 , C07C9/04

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