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Oxygen separation membrane

An oxygen separation membrane and anion technology, applied in separation methods, semi-permeable membrane separation, membranes, etc., can solve problems such as insufficient performance of oxygen separation membranes, and achieve the effect of high oxygen selective permeability

Inactive Publication Date: 2019-03-15
SHARP KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of the known oxygen separation membrane is insufficient, and further improvement of the performance is desired

Method used

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  • Oxygen separation membrane
  • Oxygen separation membrane
  • Oxygen separation membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0114] [Preparation of Ionic Liquids]

[0115] To 100 ml of ethanol, 5.64 g (10 mmol) of trihexyl(tetradecyl)phosphonium bromide (manufactured by Sigma-Aldrich, purity>95%) and anion exchange resin (manufactured by Sigma-Aldrich, Amberlite (registered trademark) IBN78hydroxideform) were added ) 20 g and stirring was carried out to carry out a substitution reaction for the hydroxide. Then, the reaction liquid was separated by suction filtration, and an aqueous solution obtained by dissolving 0.98 g (11 mmol) of N-methylglycine (manufactured by Tokyo Chemical Industry Co., Ltd., purity>98%) in 20 ml of pure water was added to make it After the reaction, the solvent and unreacted materials were removed by concentration under reduced pressure to obtain 4.88 g of an ionic liquid containing a trihexyl(tetradecyl)phosphonium cation and an anion of N-methylglycine.

[0116] [Preparation of mixed liquid]

[0117] Next, using 1.30 g of the obtained ionic liquid (active ingredient: 2.3...

Embodiment 2

[0139] In the same manner as in Example 1, an ionic liquid containing trihexyl(tetradecyl)phosphonium cation and N-methylglycine anion was obtained.

[0140] Next, 1.75 g of the obtained ionic liquid (active ingredient: 3.1 mmol) and N,N'-bis(salicylidene)ethylenediamine cobalt (II) (manufactured by Tokyo Chemical Industry Co., Ltd., purity>95%) 0.48 g (1.5 mmol) was added to 50 ml of ethanol, stirred and mixed at room temperature for 3 hours, deoxidized by nitrogen bubbling for 1 hour, and then concentrated under reduced pressure to remove the solvent and unreacted materials to obtain a cobalt-salen complex. The target liquid of the physical structure is 1.77g.

[0141] Preparation of the immersion membrane and evaluation of the oxygen permeable membrane were performed under the same conditions and procedures as in Example 1.

[0142] Put the results obtained in the membrane evaluation in figure 2 and Figure 5 and shown in Tables 1 and 2.

Embodiment 3

[0144] [Preparation of Ionic Liquids]

[0145] To 100 ml of ethanol, 3.96 g (10 mmol) of tributyl-n-octylphosphonium bromide (manufactured by Tokyo Chemical Industry Co., Ltd., purity>98%) and 20 g of anion exchange resin (manufactured by Sigma-Aldrich, Amberlite (registered trademark) IBN78hydroxide form) were added And stirring is performed, and the substitution reaction of hydroxide is performed. Then, the reaction liquid was separated by suction filtration, and an aqueous solution obtained by dissolving 0.98 g (11 mmol) of N-methylglycine (manufactured by Tokyo Chemical Industry Co., Ltd., purity>98%) in 20 ml of pure water was added to make In the reaction, the solvent and unreacted materials were removed by concentration under reduced pressure, thereby obtaining 3.40 g of an ionic liquid containing a tributyl-n-octylphosphonium cation and an anion of N-methylglycine.

[0146] [Preparation of mixed liquid]

[0147] Next, using 1.52 g of the obtained ionic liquid (active...

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Abstract

An oxygen separation membrane which is configured of a porous material and a complex in the form of a liquid, said complex being internally contained in the porous material, and wherein: the complex contains a metal salen complex or a derivative thereof and a first ionic liquid; the first ionic liquid is composed of anions having an amine structure and cations of imidazolium, aliphatic quaternaryphosphonium or ammonium having an alkyl chain with 2-20 carbon atoms, an alkylene oxide chain or an alkyl ether chain; and the anions of the first ionic liquid are coordinated to the axial ligands ofcentral metal ions of the metal salen complex or a derivative thereof.

Description

technical field [0001] The present invention relates to an oxygen separation membrane including a molecule that selectively reacts with oxygen in its constituent components in order to efficiently separate oxygen from a mixed gas containing oxygen. Background technique [0002] The gas separation technology and process can be applied to exhaust gas purification, deodorization treatment, component extraction, energy saving, etc., so it is useful not only in the industrial field, but also in the field of people's livelihood. [0003] Oxygen in the gas species is the most common gas in our life. It is no exaggeration to say that it participates in all chemical reactions represented by respiration, combustion, catalysis, and molecular synthesis. If the operation of efficiently absorbing, concentrating, and storing oxygen can be controlled by a simple system, it can be expected to play a role in a wide range of fields from life to industry. On the other hand, it is not necessary ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D69/00B01D71/34B01D71/36C07C229/12C07C251/24C07F9/54C07F15/06
CPCB01D71/34B01D71/36C07C229/12C07C251/24B01D53/228B01D69/02B01D2325/20B01D71/00B01D2323/46C07F15/065C07F9/5407B01D2256/12B01D2323/226B01D69/1411B01D2325/0283B01D69/107C07C317/28C07F9/54C07F15/06B01D69/00
Inventor 中西康哲松山秀人神尾英治松冈淳
Owner SHARP KK