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Method for testing sodium ion transmission capacity of chlor-alkali membrane

A chlor-alkali ion membrane and sodium ion technology, which is applied in measurement devices, material separation, instruments, etc., can solve problems such as insufficient ability to transfer sodium ions, and achieve the effects of clear, fast and clear detection results.

Pending Publication Date: 2020-09-18
SHANDONG DONGYUE POLYMER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a simple, non-toxic, non-polluting, clear and rapid detection method for the ability of chlor-alkali membranes to transmit sodium ions, and solves the problem that the current chlor-alkali membrane test methods are insufficient in characterizing their ability to transmit sodium ions

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  • Method for testing sodium ion transmission capacity of chlor-alkali membrane

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Embodiment 1

[0030] The method for testing chlor-alkali membrane of the present invention to transmit sodium ion ability may further comprise the steps:

[0031] 1) Chlor-alkali ion membrane pretreatment

[0032] Cut the chlor-alkali ion membrane into a sample of 60mm×60mm, rinse the cut chlor-alkali ion membrane with pure water, and soak it in 58.5g / L NaCl solution for 3h.

[0033] 2) Assembly of chlor-alkali ion membrane in diffusion dialysis device

[0034] Take the sample after pretreatment, dry its surface solution with filter paper, such as figure 1 As shown, the chlor-alkali ion membrane is assembled between the interconnected dialysis chamber 2 and the diffusion chamber 3, and the dialysis chamber 2 and the diffusion chamber 3 are connected to the channels with holes in the corresponding positions. figure 1 The schematic diagram of the structure is easy to understand and will not be repeated here. The sulfonic acid side of the chlor-alkali membrane faces the dialysis chamber 2, a...

Embodiment 2

[0041] The method for testing chlor-alkali membrane of the present invention to transmit sodium ion ability may further comprise the steps:

[0042] 1) Chlor-alkali ion membrane pretreatment

[0043] Cut the chlor-alkali ion membrane into a sample of 60mm×60mm, rinse the cut chlor-alkali ion membrane with pure water, and soak it in 58.5g / L NaCl solution for 3h.

[0044] 2) Assembly of chlor-alkali ion membrane in diffusion dialysis device

[0045] Take the sample after pretreatment, dry its surface solution with filter paper, assemble the chlor-alkali ion membrane between the interconnected dialysis chamber 2 and diffusion chamber 3, as figure 1 As shown, the chlor-alkali ion membrane is assembled between the interconnected dialysis chamber 2 and the diffusion chamber 3, and the dialysis chamber 2 and the diffusion chamber 3 are connected to the channels with holes in the corresponding positions. figure 1 The schematic diagram of the structure is easy to understand and will ...

Embodiment 3

[0052] The method for testing chlor-alkali membrane of the present invention to transmit sodium ion ability may further comprise the steps:

[0053] 1) Chlor-alkali ion membrane pretreatment

[0054] Cut the chlor-alkali ion membrane into a sample of 60mm×60mm, rinse the cut chlor-alkali ion membrane with pure water, and soak it in 300g / L NaCl solution for 3h.

[0055] 2) Assembly of chlor-alkali ion membrane in diffusion dialysis device

[0056] Take the sample after pretreatment, dry its surface solution with filter paper, assemble the chlor-alkali ion membrane between the interconnected dialysis chamber 2 and diffusion chamber 3, as figure 1 As shown, the chlor-alkali ion membrane is assembled between the interconnected dialysis chamber 2 and the diffusion chamber 3, and the dialysis chamber 2 and the diffusion chamber 3 are connected to the channels with holes in the corresponding positions. figure 1 The schematic diagram of the structure is easy to understand and will n...

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Abstract

The invention relates to the field of inorganic membrane materials, in particular to a method for testing sodium ion transmission capacity of a chlor-alkali membrane. The method for testing the sodiumion transmission capacity of the chlor-alkali membrane is characterized by comprising the following steps: 1) pretreating the chlor-alkali ionic membrane; 2) assembling the chlor-alkali ionic membrane in a diffusion dialysis device, wherein the diffusion dialysis device comprises a dialysis chamber and a diffusion chamber which are communicated with each other; the chlor-alkali ionic membrane isassembled between the dialysis chamber and the diffusion chamber to completely divide the dialysis chamber and the diffusion chamber into two independent chambers; 3) diffusion dialysis; and 4) cationchromatography test. The dialysis chamber and the diffusion chamber adopt the same stirring rate, so that the influence of concentration polarization on the sodium ion permeation rate is reduced, andthe sodium ion concentration in the diffusion liquid is tested by adopting cation chromatography. According to the method for testing the sodium ion transmission capacity of the chlor-alkali membrane, the permeability of the chlor-alkali membrane to sodium ions can be directly quantified, the test is rapid, the detection result is clear, and the reliability of performance detection of the chlor-alkali membrane in the actual application process is improved.

Description

technical field [0001] The invention relates to the field of fluorine-containing functional membrane materials, in particular to a method for testing the ability of a chlor-alkali membrane to transmit sodium ions. Background technique [0002] The successful development of perfluorinated ion membrane and its popularization and application in the chlor-alkali industry is a revolution in the technology of the chlor-alkali industry. The ionic membrane method has been developed rapidly. Generally speaking, it is because of its low energy consumption, low steam consumption, low investment, high product quality, and the elimination of environmental pollution from asbestos and mercury lamps. At present, there are several commercial ion membranes produced by American Chemours Company, Japan Asahi Glass Company and Asahi Kasei Company in the world. Due to the relatively late industrialization of domestic chlor-alkali membranes, the chlor-alkali industry has put forward very high goa...

Claims

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Application Information

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IPC IPC(8): G01N30/96G01N30/06
CPCG01N30/96G01N30/06
Inventor 韩珊薛帅张江山张永明
Owner SHANDONG DONGYUE POLYMER MATERIAL
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