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公开(公告)号：ES2154789T3
公开(公告)日：2001-04-16
申请号：ES96301516
申请日：1996-03-06
Applicant: TORAY INDUSTRIES
Inventor： ICHIOKA RYOJI , YAMAKAWA SHINOBU , OKINO HIROHITO
Abstract: A process for producing xylene comprises subjecting a feedstock containing C9 (alkyl aromatic) hydrocarbons to disproportionation, rearrangement and dealkylation with the aid of a catalyst, the feedstock containing 5 to 50%, by weight of the total weight of the feedstock, of an aromatic hydrocarbon having at least one ethyl group.
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公开(公告)号：CA2171064A1
公开(公告)日：1996-09-07
申请号：CA2171064
申请日：1996-03-05
Applicant: TORAY INDUSTRIES
Inventor： ICHIOKA RYOJI , YAMAKAWA SHINOBU , OKINO HIROHITO
Abstract: An improved process for producing xylene from feedstock containing C9 alkyl aromatic hydrocarbons with the aid of a catalyst capable of disproportionation, rearrangement, and dealkylation, wherein said improvement comprises performing the reaction in the presence of an aromatic hydrocarbon having one or more ethyl groups in an amount of 5 to 50 wt%.
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公开(公告)号：CA2171064C
公开(公告)日：2006-11-21
申请号：CA2171064
申请日：1996-03-05
Applicant: TORAY INDUSTRIES
Inventor： ICHIOKA RYOJI , YAMAKAWA SHINOBU , OKINO HIROHITO
Abstract: An improved process for producing xylene from feedstock containing C9 alkyl aromatic hydrocarbons with the aid of a catalyst capable of disproportionation, rearrangement, and dealkylation, wherein said improvement comprises performing the reaction in the presence of an aromatic hydrocarbon having one or more ethyl groups in an amount of 5 to 50 wt%.
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公开(公告)号：DE60006187T2
公开(公告)日：2004-07-29
申请号：DE60006187
申请日：2000-06-09
Applicant: TORAY INDUSTRIES
Inventor： KITAMURA AKIRA , ICHIOKA RYOJI , YAMAKAWA SHINOBU
Abstract: A method for converting aromatic hydrocarbons comprises contacting a benzene-containing, aromatic hydrocarbon material having a non-aromatic compound content of at most 1 % by weight, with a catalyst. By this method, aromatic hydrocarbons such as C7 and C8 are efficiently increased and the catalyst deactivation is reduced.
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公开(公告)号：CA2268489A1
公开(公告)日：1999-10-09
申请号：CA2268489
申请日：1999-04-08
Applicant: TORAY INDUSTRIES
Inventor： IWAYAMA KAZUYOSHI , YAMAKAWA SHINOBU , KATO MASASHI , OKINO HIROHITO
IPC: B01D53/02 , B01J20/18 , B01J20/28 , C07C17/389
Abstract: The invention provides an adsorbing and separating agent for halogenated aromatic compounds, and an adsorbing and separating method for the compounds. Using the adsorbing and separating agent of the invention gives a high-purity, halogenated aromatic compound isomer. In the adsorbing and separating method of the invention, the adsorbent used is prevented from being deteriorated and its life can be prolonged. The adsorbent for separating halogenated aromatic compounds of the invention has a porosity o from 0.20 cc/cc to 0.37 cc/cc, a packing density of from 0.50 g/ml to 0.70 g/ml, and a grain size of from 0.1 mm to 1.0 mm. With the adsorbent, a halogenated aromatic compound isomer is separated and recovered; or a halogenated aromatic compound having a dissolved oxygen content of at most 15 ppm by weight is separated and recovered with an adsorbent. In the method, at least one, high-purity isomer can be efficiently separated and recovered from a mixture of halogenated aromatic compound isomers.
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Patent Agency Ranking
公开(公告)号：DE69922429T2
公开(公告)日：2005-12-01
申请号：DE69922429
申请日：1999-04-07
Applicant: TORAY INDUSTRIES
Inventor： IWAYAMA KAZUYOSHI , YAMAKAWA SHINOBU , KATO MASASHI , OKINO HIROHITO
IPC: B01D53/02 , B01J20/18 , B01J20/28 , C07C17/389 , B01D53/04
Abstract: An adsorbent for separating halogenated aromatic compounds has at least one of a porosity of from 0.20 cc/cc to 0.37 cc/cc, a packing density of from 0.36 g/ml to 0.70 g/ml, and a grain size of from 0.1 mm to 1.0 mm. With the adsorbent, a halogenated aromatic compound isomer is separated and recovered; or a halogenated aromatic compound having a dissolved oxygen content of at most 15 ppm by weight is separated and recovered with an adsorbent. In the method, at least one high-purity isomer can be efficiently separated and recovered from a mixture of halogenated aromatic compound isomers.
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公开(公告)号：DE69826630T2
公开(公告)日：2005-10-13
申请号：DE69826630
申请日：1998-07-10
Applicant: TORAY INDUSTRIES
Inventor： KATO HAJIME , IWAYAMA KAZUYOSHI , KATO MASASHI , YAMAKAWA SHINOBU , OKINO HIROHITO
IPC: B01J29/18 , B01J29/40 , B01J35/02 , C07C17/358 , B01J29/06
Abstract: In a halogenated aromatic isomerization method using a zeolite-containing catalyst composition, dissolved oxygen is decreased so that the halogenated aromatic material contains 15 wt ppm or less of dissolved oxygen. As a result, the life or regeneration period of the catalyst can be prolonged. In particular, the method may employ a zeolite catalyst composition in which the maximum diameter of secondary particles of the zeolite in the catalyst composition is 5 microns or less.
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公开(公告)号：DE69826630D1
公开(公告)日：2004-11-04
申请号：DE69826630
申请日：1998-07-10
Applicant: TORAY INDUSTRIES
Inventor： KATO HAJIME , IWAYAMA KAZUYOSHI , KATO MASASHI , YAMAKAWA SHINOBU , OKINO HIROHITO
IPC: B01J29/18 , B01J29/40 , B01J35/02 , C07C17/358 , B01J29/06
Abstract: In a halogenated aromatic isomerization method using a zeolite-containing catalyst composition, dissolved oxygen is decreased so that the halogenated aromatic material contains 15 wt ppm or less of dissolved oxygen. As a result, the life or regeneration period of the catalyst can be prolonged. In particular, the method may employ a zeolite catalyst composition in which the maximum diameter of secondary particles of the zeolite in the catalyst composition is 5 microns or less.
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公开(公告)号：DE60006187D1
公开(公告)日：2003-12-04
申请号：DE60006187
申请日：2000-06-09
Applicant: TORAY INDUSTRIES
Inventor： KITAMURA AKIRA , ICHIOKA RYOJI , YAMAKAWA SHINOBU
Abstract: A method for converting aromatic hydrocarbons comprises contacting a benzene-containing, aromatic hydrocarbon material having a non-aromatic compound content of at most 1 % by weight, with a catalyst. By this method, aromatic hydrocarbons such as C7 and C8 are efficiently increased and the catalyst deactivation is reduced.
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公开(公告)号：CA2276901A1
公开(公告)日：2000-01-06
申请号：CA2276901
申请日：1999-07-05
Applicant: TORAY INDUSTRIES
Inventor： KANAI TAKASHI , SHIBAYAMA KATSUHIRO , AOKI TOMOYUKI , YAMAKAWA SHINOBU , KITAGAWA TETSUJI , OKAMOTO ATSUSHI
IPC: B01D15/00 , C07B57/00 , C07C17/38 , C07C19/00 , C07C45/90 , C07C49/16 , C07C49/457 , C07C67/48 , C07C69/34 , C07C69/63 , C07D301/32 , C07D303/08 , C07D305/12 , C07D307/04 , C07D307/33
Abstract: The object of the present invent:ion is to provide a method for efficiently resolving optical isomers. The object of the present invention can be achieved by a method for resolving optical isomers, in which an discriminating liquid consisting of an discriminating agent capable of discriminating optical isomers and a diluent is brought into contact with a mixture containing said optical isomers in counter current, to resolve the optical isomers by adsorption separation, distillation separation, absorption separation or membrane separation, and is recovered at an optical isomer content of 5 wt% or less for recycled use, characterized by satisfying one or move of the following conditions (a) The dielectric constant of the diluent is 30 or less and the viscosity of the discriminating liquid is 0.2 Pa's or less at the temperature of the resolving operation. (b) The discriminating agent contained has an effect of splitting the 1H or 13C-NMR spectrum peak of the optical isomers when added and the diluent contained has a dielectric constant equal to or lower than the dielectric constant of the measuring solvent at the time of measuring the 1H or 13C-NMR spectrum. (c) The boiling point of at least one compound of the discriminating agent at the pressure of resolving operation is higher than the boiling point of at least one compound of the diluent at the pressure of resolving operation. (d) The boiling point of at least one compound of the diluent at the pressure of resolving operation is higher than the boiling point of the optical isomers to be resolved, at the pressure of resolving operation by 10.degree.C or more. (e) The concentration of,the discriminating agent in the discriminating liquid is 10 wt% or more.
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