Inorganic porous support-zeolite membrane complex, method for producing same and separation method using same

An inorganic porous, zeolite membrane technology, applied in separation methods, semi-permeable membrane separation, dispersed particle separation, etc., can solve the problem of low heat resistance of polymer membranes, low chemical resistance of polymer membranes, limited scope of application, etc. problem, to achieve the effect of excellent acid resistance

Active Publication Date: 2016-03-23
MITSUBISHI RAYON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polymer film has a disadvantage of low heat resistance
In addition, polymer membranes have low chemical resistance, and most of them swell when they come into contact with organic substances such as organic solvents or organic acids, so the scope of application for separation and concentration objects is limited.

Method used

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  • Inorganic porous support-zeolite membrane complex, method for producing same and separation method using same
  • Inorganic porous support-zeolite membrane complex, method for producing same and separation method using same
  • Inorganic porous support-zeolite membrane complex, method for producing same and separation method using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0177] In order to produce a CHA-type zeolite membrane, an aqueous solution of N,N,N-trimethyl-1-adamantylammonium hydroxide (TMADOH) was prepared referring to the description in USP4544538. Examples are given below.

[0178] 5.5 g of 1-adamantanamine (manufactured by Aldrich) was dissolved in 75 ml of methanol, 24.2 g of potassium carbonate was added, and stirred for 30 minutes. 10 ml of iodomethane was added dropwise thereto, followed by stirring for 1 day and night. Then 50 ml of dichloromethane was added and the solid was filtered. The solvent of the obtained solution was removed by an evaporator to obtain a solid. After adding 130 ml of dichloromethane to the solid, the operation of filtering and removing the solvent was repeated twice. Thereafter, the obtained solid was recrystallized with methanol, the recrystallized solid was filtered, washed with diethyl ether, and dried to obtain N,N,N-trimethyl-1-adamantylammonium iodide (TMADI). Thereafter, this TMADI was diss...

Embodiment 2

[0189] By directly hydrothermally synthesizing the CHA type zeolite on the inorganic porous support body, the inorganic porous support body CHA type zeolite membrane complex is produced.

[0190] As a reaction mixture for hydrothermal synthesis, the following reaction mixture was prepared.

[0191] Add aluminum hydroxide (containing 53.5% by weight Al 2 o 3 , manufactured by Aldrich Corporation) 0.88 g was dissolved by stirring to obtain a transparent solution. Add thereto 2.95 g of N,N,N-trimethyl-1-adamantylammonium hydroxide (TMADOH) aqueous solution (containing 25% by weight of TMADAOH, manufactured by Sachem) as an organic template, and then add colloidal dioxide 10.5 g of silicon (SNOWTEX-40 manufactured by Nissan Chemical Co., Ltd.) was stirred for 2 hours to prepare a mixture for hydrothermal synthesis.

[0192] As the inorganic porous support, a support obtained by the same treatment as in Example 1 was used. Before hydrothermal synthesis, CHA-type zeolite seed cr...

Embodiment 3

[0197] By directly hydrothermally synthesizing the CHA type zeolite on the inorganic porous support body, the inorganic porous support body-CHA type zeolite membrane complex is prepared.

[0198] As a reaction mixture for hydrothermal synthesis, the following reaction mixture was prepared.

[0199] Aluminum hydroxide (containing 53.5% by weight of Al 2 o 3 , manufactured by Aldrich Corporation) 0.88 g was dissolved by stirring to obtain a transparent solution. Add thereto 2.37 g of N,N,N-trimethyl-1-adamantylammonium hydroxide (TMADOH) aqueous solution (containing 25% by weight of TMADAOH, manufactured by Sachem) as an organic template, and then add colloidal dioxide 10.5 g of silicon (SNOWTEX-40 manufactured by Nissan Chemical Co., Ltd.) was stirred for 2 hours to prepare a mixture for hydrothermal synthesis.

[0200] As the inorganic porous support, a support obtained by the same treatment as in Example 1 was used. Before hydrothermal synthesis, a CHA-type zeolite seed c...

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Abstract

An object of the present invention is to provide a zeolite membrane composite satisfying both the treating amount and the separation performance at a practically sufficient level, which can be applied even in the presence of an organic material and can separate / concentrate an organic material-containing gas or liquid mixture and which is economic without requiring a high energy cost and is not limited in its application range; a production method thereof; and a separation or concentration method using the same. The present invention is an inorganic porous support-zeolite membrane composite, wherein the inorganic porous support contains a ceramic sintered body and the inorganic porous support-zeolite membrane composite has, as a zeolite membrane, a CHA-type zeolite crystal layer on the inorganic porous support surface.

Description

[0001] This application is a divisional application, and the Chinese national application number of the application it targets is 201080009249.9, the international application number is PCT / JP2010 / 053172, the filing date is February 26, 2010, and the date of entering China is August 25, 2011 , the title of the invention is "Inorganic Porous Support-Zeolite Membrane Composite, Manufacturing Method and Separation Method Using It". technical field [0002] The present invention relates to an inorganic porous support-zeolite membrane composite suitable for separating and concentrating a gas or liquid mixture containing organic substances and a manufacturing method thereof, and further relates to the extraction of organic substances using the inorganic porous support-zeolite membrane composite Separation method. Background technique [0003] Conventionally, in the separation and concentration of gas or liquid mixtures containing organic substances, distillation, azeotropic distil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/02B01D61/36B01D69/10C01B39/04
CPCB01D61/362B01D67/0051B01D69/10B01D71/024B01D71/025B01D71/027B01D71/028B01D53/228B01D69/125B01D2323/12B01D2323/24
Inventor 杉田美树武胁隆彦大岛一典藤田直子
Owner MITSUBISHI RAYON CO LTD
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