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Weaving diaphragm cloth for electrolytic nickel and weaving method thereof

An electrolytic nickel and diaphragm cloth technology, applied in textiles, papermaking, fabrics, textiles, etc., can solve the problems of corrosion damage to the diaphragm, increase the cost of processes and use, and the electrolyte does not tend to be neutral, and achieve high electrolysis efficiency. The effect of wide application and low resistivity

Active Publication Date: 2012-05-02
辽宁博联过滤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 3. Strong chemical stability, the electrolyte generally does not tend to be neutral, and there will be certain corrosion damage to the diaphragm. The chemical stability of the material has a great impact on the efficiency of electrolysis
However, PPS is not stable in strong oxidizing acids (such as concentrated sulfuric acid, nitric acid, perchloric acid or sodium perchlorate, hydrogen peroxide, etc.), and can be oxidized. At the same time, the hydrophilicity of polyphenylene sulfide is very poor. The surface of the diaphragm and the pores of the diaphragm cannot be completely wetted by water, so hydrophilic modification must be carried out, which greatly increases the production process and the cost of use
[0014] 4. Polysulfone diaphragm: polysulfone diaphragm has excellent oxidation resistance, thermal stability and high temperature melting stability, and also has excellent mechanical properties, high temperature resistance, acid and alkali resistance, bacterial corrosion resistance, good mechanical properties, The raw materials are cheap and easy to obtain, and the pH application range is wide, etc., but the hydrophobicity of the diaphragm directly affects the resistance of the diaphragm and the purity of the gas, so it also faces the same problem as the polyphenylene sulfide diaphragm.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Weaving diaphragm cloth for electrolytic nickel and weaving method thereof
  • Weaving diaphragm cloth for electrolytic nickel and weaving method thereof
  • Weaving diaphragm cloth for electrolytic nickel and weaving method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A woven diaphragm fabric for electrolytic nickel, which also meets the following requirements: the warp and weft yarns of the woven diaphragm fabric for electrolytic nickel simultaneously use polyester / cotton blended yarn, and the blending ratio is 65 / 35; The raw yarn count is warp yarn (21±1)S / 10, weft yarn is (21±1)S / 5; warp and weft density respectively: warp density 150±1 strand / 10cm, weft density 100±1 strand / 10cm .

[0041] The weaving method of woven diaphragm cloth for electrolytic nickel as described above, the weaving method is carried out according to the following process steps: 1) Double-twisting: polyester-cotton yarn or polyester-cotton and special fiber ply and twisting; 2) warping: according to The process requires that a certain amount of two-for-one twisted yarn is evenly wound on the weaving shaft; 3) Fabric weave: In order to ensure the improvement of product performance, we adopt a warp and flattening weave; 4) Weaving: On the loom, warp and weft yar...

Embodiment 2

[0044] The content of this embodiment is basically the same as that of embodiment 1, and the difference lies in:

[0045] The woven diaphragm fabric for electrolytic nickel also meets the following requirements: the warp and weft yarns of the woven diaphragm fabric for electrolytic nickel simultaneously use polyester / cotton blended yarn, and the blending ratio is 100 / 0 (that is, pure polyester spinning) The raw material yarn count is warp yarn (17±1)S / 10, weft yarn is (25±1)S / 5; warp and weft density are respectively: warp density 164±1 strand / 10cm, weft density is 114±1 strand / 10cm.

[0046] The woven diaphragm fabric used for electrolytic nickel forms a fabric when the water pressure is 150mm, the water permeability standard is 80±20L / m 2 ·H below; the resistance of the fabric is less than 20±5OM·cm 2 .

Embodiment 3

[0048] The content of this embodiment is basically the same as that of embodiment 1, and the difference lies in:

[0049] The woven diaphragm fabric for electrolytic nickel also meets the following requirements: the warp and weft yarns of the woven diaphragm fabric for electrolytic nickel simultaneously use polyester / cotton blended yarn, and the blending ratio is 0 / 100 (that is, pure cotton spinning) The raw yarn count is warp yarn (25±1)S / 10, weft yarn is (17±1)S / 5; warp and weft density are respectively: warp density of 150±15 pieces / 10cm, and weft density of 100±15 pieces / 10cm.

[0050] The woven diaphragm fabric used for electrolytic nickel forms a fabric when the water pressure is 150mm, the water permeability standard is 25±15L / m 2 ·H below; the resistance of the fabric is less than 15±10OM·cm 2 .

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Abstract

The invention discloses weaving diaphragm cloth for electrolytic nickel. The weaving diaphragm cloth is characterized in that: the standard requirement of the water percolation rate is that: when the water pressure is 150 millimeters, the water percolation rate standard is below 100L / m<2>.h; and the resistance of a fabric is less than 30 OM.cm<2>. The weaving diaphragm cloth for electrolytic nickel is remarkably superior to the weaving diaphragm cloth for electrolytic nickel in the prior art, and meets specified requirements. A diaphragm bag made of the weaving diaphragm cloth for electrolytic nickel disclosed by the invention, the defects of the conventional diaphragm in the prior art are overcome; and the weaving diaphragm cloth has the advantages of convenience for using, low resistivity, high electrolytic efficiency, wide application range and low cost.

Description

Technical field: [0001] The invention relates to the technical field of diaphragm cloth manufacturing, and in particular provides a woven diaphragm cloth for electrolytic nickel and a weaving method thereof. Background technique: [0002] In the prior art, diaphragm electrolysis technology is a comprehensive application of electroosmosis and electrolysis. It mainly uses the reaction of two electrodes to separate, extract and process the reactants and products in the anode zone and the cathode zone. It is widely used in the fields of chemical industry, environmental protection, and non-ferrous metallurgy. [0003] Nickel sulfide anode electrolysis was first industrialized in Canada after the 1950s. After the 1960s, China also adopted this process. Its working principle is: the anode process is that metal ions enter the solution and the sulfur atoms are oxidized into elemental sulfur. Due to the dissolution of other metal impurities and the discharge of hydroxide ions, the acidity o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03D1/00D03D13/00D03D15/00D03D15/02D02G3/04D02G3/12H01M2/16D03D15/217D03D15/25D03D15/283D03D15/47
CPCY02E60/12Y02E60/10
Inventor 薛晓彤
Owner 辽宁博联过滤有限公司
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