CN102733208A - Device for indirect electrochemical reduction dyeing - Google Patents
Device for indirect electrochemical reduction dyeing Download PDFInfo
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- CN102733208A CN102733208A CN2012101565255A CN201210156525A CN102733208A CN 102733208 A CN102733208 A CN 102733208A CN 2012101565255 A CN2012101565255 A CN 2012101565255A CN 201210156525 A CN201210156525 A CN 201210156525A CN 102733208 A CN102733208 A CN 102733208A
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Abstract
The present invention relates to an environment protection type dyeing device, and especially to a device for indirect electrochemical reduction dyeing. The purpose of the present invention is mainly to solve the following technical problems in the prior art: during dyeing, the electron transfer efficiency is not high, the electrolytic reduction time is long, and the current efficiency is low, such that practical applications of the device in factories are hampered, and the like. The device comprises an electrolytic tank (1), wherein the electrolytic tank (1) comprises a cathode tank (2) with a regular hexagon cross section, both opposite sides of the cathode tank are provided with an anode tank (3), through holes (4) are arranged between the cathode tank and the anode tank, a plurality of cathode plates (5) are inserted and connected in the cathode tank (2), the cathode plates are spirally arranged, upper ends of the cathode plates are fixed on an annular body (6), anode plates are inserted and connected in the anode plates (7), separation films are arranged between the cathode plates and the anode plates, and the cathode plates and the anode plates are respectively connected with an external power supply by conductors.
Description
Technical field
The present invention relates to a kind of environment protection type dye equipment, especially relate to a kind of equipment that is used for the indirect electrochemical reduction stain.
Background technology
Reducing dye is the dyestuff of one type of function admirable; It is bright-coloured to have coloured light; Chromatogram is complete, and the Color fastness is good, and especially light fastness is high; But adopt sodium hydrosulfite as reductant in its traditional colouring method, make and produced the accessory substances extremely harmful such as hydrogen sulfide, sodium sulfite in its dyeing course environment.Along with the raising of fast development of national economy and people's living standard, be badly in need of a kind of research of carrying out eco-friendly new dyeing method and technology.
For fear of the use of chemical reducing agent and the formation of accessory substance, thereby eliminate reducing dye waste water, carrying out the research of eco-friendly new dyeing method and technology both at home and abroad energetically.Comprise that the reductant of selecting environment-friendly type for use replaces sodium hydrosulfite and uses, for example hydroxypropanone-, iron (II) complex compound etc.
Electrochemistry staining technique reaction condition is gentle, oxidation-reduction potential is controlled, reductant is renewable, consume chemicals and water is few, discharge of wastewater is few, is just becoming the most attractive new method in the reducing dye colouring method.1807, Grotthus found that first electric current can indigotin, has started the beginning of electrochemistry staining technique.But, up to date 20 years, Australian BechtoldThomas seminar and Switzerland AlbertRoessler just begin this gate technique is carried out deep research.The electrochemical reduction colouring method has three kinds: Direct Electrochemistry reduction, indirect electrochemical reduction and electric catalyticing hydro.
Direct Electrochemistry is reduced because electronics is between two kinds of solids, directly to shift, therefore, the efficient of electric current very low (being lower than 20%) in the experiment, rate of reduction is very slow.And the leuco dye that forms in the system is unstable, influences the color and luster of DYED FABRICS.
Electric catalyticing hydro method reducing dye, biggest advantage are not need chemical reducing agent, do not have discharge of wastewater.But reducing dye is the water-insoluble solid particle mostly, therefore, and the weak effect that contacts of dyestuff and electrode, catalyst.The another one problem is life of catalyst and selectivity, the noble metal catalyst Pt that studies at present, high, the life-span weak point of Pd price, and the RaneyNi catalyst activity is lower, makes that the conversion ratio of dyestuff is not high.Since there is the liberation of hydrogen side reaction, the requirement very high to the proposition of selection of catalysts property, and estimated current efficient is too low, can't satisfy actual requirement.
The environment protection type dye method of the most potential replacement sodium hydrosulfite is an indirect electrochemical reduction stain method at present.But at present domesticly its research is mainly concentrated on mediator fasten; Comprise that triethanolamine, glucose and tartaric acid are the media system of part; Though these systems had a good Color, electron transfer efficiency is not high, the electroreduction overlong time; Current efficiency is low, has hindered the practical application in the middle of factory.Demand developing a kind of novel dyeing installation urgently and improve electrochemical reduction dyeing efficient.
Summary of the invention
The present invention provides a kind of equipment that is used for the indirect electrochemical reduction stain; It mainly is that electron transfer efficiency is not high when solving existing in prior technology dyeing; The electroreduction overlong time, current efficiency is low, has hindered the technical problem of practical application in the middle of factory etc.
Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals:
A kind of equipment that is used for the indirect electrochemical reduction stain of the present invention comprises electrolytic cell, and it is orthohexagonal cathode can that described electrolytic cell includes the cross section; The relative both sides of cathode can respectively are provided with an anode slot; Be provided with through hole between cathode can and the anode slot, be plugged with many minus plates in the cathode can, minus plate is arranged twist; The minus plate upper end is fixed on the annular solid; Be plugged with positive plate in the anode slot, be provided with barrier film between minus plate and the positive plate, minus plate is connected with external power supply through lead respectively with positive plate.Minus plate is arranged twist, and promptly there are certain included angle in minus plate and annular solid.Minus plate become screw type and electrolytic cell to become hexagon this helps electrolyte to stir down in brute force in electrolytic cell, to form turbulent flow, powerful speed of agitator greatly the time electrolyte can not overflow electrolytic cell.Improve stir speed (S.S.) and can improve electron transfer efficiency.Anode slot is positioned at cathode can symmetry two ends and helps to be evenly distributed electric current, makes the electrolyte electrolysis even.Many negative electrodes double anode electrolytic cell of made of the present invention effectively improves electron transfer efficiency 50%, calculates the short electroreduction time 45% than plain electrolysers.
As preferably, the centre of the circle that described minus plate is formed is provided with strong mixer or magnetic stirrer.Powerful stirring and magnetic agitation can improve dissolving contact electronic efficiency, improve media system reducing power.The strong mixer rotating speed is at 300-2000r/min.
As preferably, described cathode can bottom is provided with heating collar, can quicken dyeing.
As preferably, described electrolytic cell material is polymethacrylates, polyfluortetraethylene plate or quartz glass.These materials have good anti-corrosion, DIMENSIONAL STABILITY, avoid strong basicity electrolyte electrolytic cell to be caused the generation of damage and minimizing side reaction.
As preferably, described electrolytic cell material is a quartz glass.Quartz glass has good DIMENSIONAL STABILITY.
As preferably, described positive plate is metallic plate or nonmetal conductive material panel.
As preferably, described minus plate is copper coin, corrosion resistant plate or graphite cake.Graphite, copper coin as electrodes conduct and good heat conductivity, have preferably corrosion resistance, inexpensive, be easy to get; And its chemical property is more stable; With all gases chemical reaction does not take place at normal temperatures, it is remarkable to be applied in the electrochemistry dyeing of oxalic acid and glucose complex system effect.
As preferably, described barrier film is a perfluoro sulfonic acid membrane.Perfluoro sulfonic acid membrane only allows proton to pass through, and has not only satisfied the transfer of anode and cathode electronics but also has avoided ferrous ion to get into anode and oxidized again.As preferably, described external power supply output voltage is direct current 1-10V.
As preferably, described electrolytic cell is with the high medium-sized silica gel sheet material bonding of corrosion-resistant heat resistance or adopt the one-shot forming mode to be made.
Therefore, the present invention can effectively improve electron transfer efficiency, shortens the electroreduction time, improves current efficiency, effectively reduces electric quantity consumption, reduces the application cost of enterprise.The present invention makes indirect electrochemical reduction stain process homogeneous heating and temperature automatically controlled, safety non-pollution, crudy is high, efficient is high, has favorable industrial application prospect.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of electrolytic cell of the present invention;
Accompanying drawing 2 is side structure sketch mapes of Fig. 1;
Accompanying drawing 3 is plan structure sketch mapes of Fig. 1;
Accompanying drawing 4 is perspective view of electrolytic cell of the present invention;
Accompanying drawing 5 is a kind of structural representations of minus plate of the present invention;
Accompanying drawing 6 is side structure sketch mapes of Fig. 5;
Accompanying drawing 7 is plan structure sketch mapes of Fig. 5;
Accompanying drawing 8 is perspective view of minus plate of the present invention.
Parts, position and numbering among the figure: electrolytic cell 1, cathode can 2, anode slot 3, through hole 4, minus plate 5, annular solid 6, positive plate 7, handle 8.
The specific embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.
Embodiment: a kind of equipment that is used for the indirect electrochemical reduction stain of this example, like figure, Fig. 2, Fig. 3, Fig. 4, it is orthohexagonal cathode can 2 that the electrolytic cell 1 that has a quartz glass to process, electrolytic cell include the cross section, the cathode can bottom is provided with heating collar.The relative both sides of cathode can respectively are provided with an anode slot 3; Be provided with through hole 4 between cathode can and the anode slot, be plugged with many minus plates 5 in the cathode can, like Fig. 5, Fig. 6, Fig. 7, Fig. 8; Minus plate is arranged twist; The minus plate upper end is fixed on the annular solid 6, is fixed with handle 7 on the annular solid, and the centre of the circle that minus plate is formed is provided with strong mixer.Be plugged with positive plate 7 in the anode slot, be provided with barrier film between minus plate and the positive plate, barrier film is a perfluoro sulfonic acid membrane, and minus plate is connected with external power supply through lead respectively with positive plate.Positive plate, minus plate are copper coin.
During use, respectively catholyte for preparing and anolyte are poured in cathode can and the anode slot, energized, voltage is 4.5V, and energising 15min joins needed dyestuff in the cathode can, and powerful the stirring fully disperseed dyestuff.Continue energising 10min-30min, treat that reducing dyes fully after, outage.The catholyte suction is dyed in the cup, wetting good textile plain weave bleached cotton fabric is immersed in the dye liquor dye, dyeing 10min takes out oxidation 30s, repeats 5 times.Washing, soap boiling, washing.
The above is merely specific embodiment of the present invention, but architectural feature of the present invention is not limited thereto, and any those skilled in the art is in the field of the invention, and the variation of being done or modify all is encompassed among the claim of the present invention.
Claims (10)
1. an equipment that is used for the indirect electrochemical reduction stain comprises electrolytic cell (1), it is characterized in that it is orthohexagonal cathode can (2) that described electrolytic cell (1) includes the cross section; The relative both sides of cathode can respectively are provided with an anode slot (3); Be provided with through hole (4) between cathode can and the anode slot, be plugged with many minus plates (5) in the cathode can (2), minus plate is arranged twist; The minus plate upper end is fixed on the annular solid (6); Be plugged with positive plate (7) in the anode slot, be provided with barrier film between minus plate and the positive plate, minus plate is connected with external power supply through lead respectively with positive plate.
2. a kind of equipment that is used for the indirect electrochemical reduction stain according to claim 1 is characterized in that the centre of the circle that described minus plate (5) is formed is provided with strong mixer or magnetic stirrer.
3. a kind of equipment that is used for the indirect electrochemical reduction stain according to claim 1 and 2 is characterized in that described cathode can (2) bottom is provided with heating collar.
4. a kind of equipment that is used for the indirect electrochemical reduction stain according to claim 1 and 2 is characterized in that described electrolytic cell (1) material is polymethacrylates, polyfluortetraethylene plate or quartz glass.
5. a kind of equipment that is used for the indirect electrochemical reduction stain according to claim 3 is characterized in that described electrolytic cell (1) material is a quartz glass.
6. a kind of equipment that is used for the indirect electrochemical reduction stain according to claim 1 and 2 is characterized in that described positive plate (7) is metallic plate or nonmetal conductive material panel.
7. a kind of equipment that is used for the indirect electrochemical reduction stain according to claim 6 is characterized in that described minus plate (5) is copper coin, corrosion resistant plate or graphite cake.
8. a kind of equipment that is used for the indirect electrochemical reduction stain according to claim 1 and 2 is characterized in that described barrier film is a perfluoro sulfonic acid membrane.
9. a kind of equipment that is used for the indirect electrochemical reduction stain according to claim 1 and 2 is characterized in that described external power supply output voltage is direct current 1-10V.
10. a kind of equipment that is used for the indirect electrochemical reduction stain according to claim 1 and 2 is characterized in that described electrolytic cell (1) perhaps adopts the one-shot forming mode to be made with the high medium-sized silica gel sheet material bonding of corrosion-resistant heat resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210156525.5A CN102733208B (en) | 2012-05-21 | 2012-05-21 | Device for indirect electrochemical reduction dyeing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210156525.5A CN102733208B (en) | 2012-05-21 | 2012-05-21 | Device for indirect electrochemical reduction dyeing |
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| CN102733208A true CN102733208A (en) | 2012-10-17 |
| CN102733208B CN102733208B (en) | 2014-05-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI564448B (en) * | 2015-02-25 | 2017-01-01 | 財團法人紡織產業綜合研究所 | Dyeing device and dyeing apparatus |
| CN108754915A (en) * | 2018-05-24 | 2018-11-06 | 武汉纺织大学 | Electrochemistry dyeing device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3919070A (en) * | 1972-09-13 | 1975-11-11 | Herrett Wilfred H | Electrolytic cell |
| CN102154793A (en) * | 2011-03-23 | 2011-08-17 | 东华大学 | Dyeing apparatus for electrochemical reduction of cotton yarns |
| CN102174731A (en) * | 2011-03-04 | 2011-09-07 | 东华大学 | Dyeing device for electrochemical reduction |
-
2012
- 2012-05-21 CN CN201210156525.5A patent/CN102733208B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3919070A (en) * | 1972-09-13 | 1975-11-11 | Herrett Wilfred H | Electrolytic cell |
| CN102174731A (en) * | 2011-03-04 | 2011-09-07 | 东华大学 | Dyeing device for electrochemical reduction |
| CN102154793A (en) * | 2011-03-23 | 2011-08-17 | 东华大学 | Dyeing apparatus for electrochemical reduction of cotton yarns |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI564448B (en) * | 2015-02-25 | 2017-01-01 | 財團法人紡織產業綜合研究所 | Dyeing device and dyeing apparatus |
| US9982379B2 (en) | 2015-02-25 | 2018-05-29 | Taiwan Textile Research Institute | Dyeing device and dyeing apparatus |
| CN108754915A (en) * | 2018-05-24 | 2018-11-06 | 武汉纺织大学 | Electrochemistry dyeing device and method |
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| CN102733208B (en) | 2014-05-14 |
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Effective date of registration: 20180426 Address after: 311221 Mei Dong village, Dang Wan Town, Xiaoshan District, Hangzhou, Zhejiang Patentee after: Hangzhou Jimei Printing and Dyeing Co., Ltd. Address before: 311221 88 Xingle Road, Dang Wan Town, Xiaoshan District, Hangzhou, Zhejiang Patentee before: Saintyear Holding Group Co., Ltd. |