METHOD FOR MANUFACTURING SYNTHETIC ZEOLITE CATALYST AND METHOD FOR PRODUCING HIGH-PURITY PARAXYLENE USING THE CATALYST MANUFACTURED THEREBY

Title:

METHOD FOR MANUFACTURING SYNTHETIC ZEOLITE CATALYST AND METHOD FOR PRODUCING HIGH-PURITY PARAXYLENE USING THE CATALYST MANUFACTURED THEREBY

Document Type and Number:

Japanese Patent JP2010089034

Kind Code:

A

Abstract:

To provide a method for producing high-purity paraxylene efficiently by using a catalyst having a molecular sieving function (or shape selectivity) and excellent catalytic activity without carrying out an isomerization/adsorptive separation step.

A method for manufacturing a synthetic zeolite catalyst, which is used when at least one of benzene and toluene is alkylated or disproportionated, comprises a step of covering MFI-type zeolite having 100 m primary particle diameter with single-crystal silicate, in the concrete, comprises the steps of: using the MFI-type zeolite, a structure control agent and a silica raw material having the average particle diameter of 10 nm and 1.0 m as raw materials; mixing the structure control agent with the silica raw material to prepare an aqueous solution satisfying XY0.05 (wherein X is the concentration (mol%) of the silica raw material; Y is the concentration (mol%) of the structure control agent); and covering the MFI-type zeolite by using the prepared aqueous solution. The method for producing high-purity paraxylene by using the manufactured synthetic zeolite catalyst is also provided.

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Inventors:

MATSUSHITA KOICHI
NAKAOKA CHIKATOKU
NISHIYAMA NORIKAZU

Application Number:

JP2008262943A

Publication Date:

April 22, 2010

Filing Date:

October 09, 2008

Export Citation:

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Assignee:

JAPAN ENERGY CORP

International Classes:

B01J29/40; C01B39/40; C07C2/86; C07C15/08; C07B61/00

Domestic Patent References:

JP2003500189A	2003-01-07
JP2003500189A	2003-01-07

Other References:

JPN6013029010; 宮本学　他: 'シリカライト／ＺＳＭ-５ゼオライトコンポジットを用いたｐ-キシレンの選択的合成' 第９８回触媒討論会討論会Ａ予稿集 , 20060926, Ｐａｇｅ３８３, 触媒学会
JPN6013029010; 宮本学　他: 'シリカライト／ＺＳＭ-５ゼオライトコンポジットを用いたｐ-キシレンの選択的合成' 第９８回触媒討論会討論会Ａ予稿集 , 20060926, Ｐａｇｅ３８３, 触媒学会

Attorney, Agent or Firm:

Kenji Sugimura
Kazuyuki Tomita

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