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

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

Inactive Publication Date: 2012-01-25
MITSUBISHI CHEM CORP
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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

[0176] 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.

[0177] 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 off, washed with diethyl ether and dried to obtain N,N,N-trimethyl-1-adamantyl ammonium iodide (TMADI). Thereafter, this TMADI was ...

Embodiment 2

[0188] 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.

[0189] As a reaction mixture for hydrothermal synthesis, the following reaction mixture was prepared.

[0190] 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-adamantyl ammonium (TMADOH) aqueous solution (containing 25% by weight of TMADAOH, manufactured by Sachem) as an organic templating agent, 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.

[0191] 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 cry...

Embodiment 3

[0196] 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.

[0197] As a reaction mixture for hydrothermal synthesis, the following reaction mixture was prepared.

[0198] 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-adamantyl ammonium (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.

[0199] 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 crystal ha...

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Abstract

Disclosed are a zeolite membrane complex capable of establishing both of practically sufficient treatment rate and separation performance, which is usable, in particular, in the presence of an organic acid, can be used for separating / concentrating a gas or liquid mixture containing an organic matter, is economically advantageous without requiring a high energy cost, and is not restricted in application range; a method for producing the same; and a separation / concentration method using the membrane complex. A complex composed of an inorganic porous support and a zeolite membrane, characterized in that the inorganic porous support contains a sintered ceramic, and a CHA type zeolite crystal layer is provided, as the zeolite membrane, on the surface of the inorganic porous support.

Description

technical field [0001] 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 [0002] Conventionally, in the separation and concentration of gas or liquid mixtures containing organic substances, distillation, azeotropic distillation, solvent extraction / distillation, and separation using adsorbents have been performed according to the properties of the substances to be separated and concentrated. Wait. However, these conventional methods have disadvantages such as requiring a large amount of energy, separation, and limited applicability of objects to be concentrated. [0003] In recent years, as separation methods replacing these conventional separatio...

Claims

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Application Information

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IPC IPC(8): B01D71/02B01D61/36B01D69/10C01B39/04
CPCB01D2323/24B01D2323/12B01D53/228B01D67/0051B01D69/10B01D69/125B01D71/028B01D61/362B01D71/024B01D71/025B01D71/027B01D69/108B01D71/0281
Inventor 杉田美树武胁隆彦大岛一典藤田直子
Owner MITSUBISHI CHEM CORP
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