CN1519395A - Electrolytic appts. and electrolytic treatment method - Google Patents
Electrolytic appts. and electrolytic treatment method Download PDFInfo
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- 239000007788 liquid Substances 0.000 claims abstract description 146
- 238000005868 electrolysis reaction Methods 0.000 claims description 50
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 30
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- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 12
- 238000005363 electrowinning Methods 0.000 description 9
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
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- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
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- MXZVHYUSLJAVOE-UHFFFAOYSA-N gold(3+);tricyanide Chemical compound [Au+3].N#[C-].N#[C-].N#[C-] MXZVHYUSLJAVOE-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
To maintain compactibility, and to improve electrolytic efficiency while suppressing heat generation. A hollow electrode 21 in which many bore holes 23 are formed on the circumferential wall is arranged at the inside of a vertical, cylindrical treatment tank 10 in a state where an annular flow passage 18 is secured between the hollow electrode 21 and the inner wall of the treatment tank 10, and a rod-shaped electrode 22 is cocentrically arranged at the inside thereof. The circumferential wall 12 of the treatment tank 10 is provided with an introduction port 13 for introducing the liquid to be treated from the outside of the treatment tank 10 into the lower end of the hollow electrode 21, and an introduction-out port 14 for introducing-out the liquid to be treated flowed out from each bore hole 23 inside the treatment tank 10 at the upper end side of the hollow electrode 21 to the outside of the treatment tank 10.
Description
Technical field
The present invention relates to electrolyzer and with the electrolytic processing method of this electrolyzer.
Background technology
General known electrolytic processing apparatus, has structure for example shown in Figure 3, positive plate 51 and negative plate 52 is set as the electrode that is connected on the power supply 32 in electrolysis treatment groove 55, in this groove, fill processed liquid, yet this electrolytic processing apparatus 50 is in the little occasion of the specific conductivity of processed liquid, and it is uneconomical that device is maximized.
Therefore, for example in patent document 1 suggestion with hollow electrode and the electrode that constitutes that is configured in stick electrode in this hollow electrode, inhomogeneous with the importing side end compensation that this technology can be by extend current because of the length direction resistance value of electrode increases progressively the current density that causes, and the electric conductivity between compensation target and stick electrode is inhomogeneous even, thereby can suppress to increase the local temperature rise that causes because of the current density of electric current importing side.
Summary of the invention
Yet this device that makes existing hollow electrode and stick electrode combination is because of making flowing of processed liquid dullness mobile little with stirring property, so there is the low problem of electrolytic efficiency.Even the flow of processed liquid is increased, flow velocity is simply increased, may not necessarily improve mobile and stirring property, therefore can't be as the effective countermeasure that is used to improve electrolytic efficiency.
Therefore,, increase the scheme of electrode area, the new problem that when making the current value increase, occurs generating heat because of the rising of current density again though considered the increase input current value.And, when electrode area is increased, device is maximized, cause the problem that the space is set and safeguards.
After the present invention considers above-mentioned situation, electrolyzer with following advantage is provided and with the treatment process of this device as purpose: even this electrolyzer and use the low processed liquid of electrolytic processing method specific conductivity of this electrolyzer also can be with fast speed electrolysis treatment, and can keep compactedness and suppress heating, and can improve electrolytic efficiency.
The invention of first aspect present invention is that electric power is applied to the device that on first and second electrodes that are configured in the treatment trough the processed liquid in the above-mentioned treatment trough is carried out electrolysis treatment, it is characterized in that:
Above-mentioned first, second electrode and first, second stream are set in above-mentioned treatment trough;
Above-mentioned first electrode is the hollow structure body that is provided with a plurality of perforation, and disposes under the state of guaranteeing with the interval of above-mentioned treatment trough inwall;
Above-mentioned second electrode is the inside that is configured in above-mentioned hollow structure body;
Above-mentioned first stream is incorporated into above-mentioned processed liquid the inside of hollow structure body from the outside of above-mentioned treatment trough.
Above-mentioned second stream makes from the inside of above-mentioned hollow structure body above-mentioned processed liquid by above-mentioned perforation outer wall and the outside that imports to above-mentioned treatment trough, the interval of above-mentioned treatment trough inwall by above-mentioned hollow structure body.
When carrying out electrolysis with this electrolyzer, make processed liquid by the inside of first stream inflow as the hollow structure body of first electrode, between first electrode and second electrode, apply electric power simultaneously.So, processed liquid is flow through between first and second electrode, a plurality of perforation from the hollow structure body that is arranged on first electrode are slowly flowed out to the outside of first electrode.Therefore a plurality of liquid that produce between first electrode and second electrode with the corresponding processed liquid of the position of boring a hole and number flow.That is to say, not be as the liquid stream that flows into the dullness of back flowing out from an outlet from an inlet, and become complicated liquid stream that making in the flowability as the intravital processed liquid of hollow structure of first electrode increases, flow activation, thus promote agitation effects.
Therefore, even when the touch opportunity of electrode and processed liquid increases, because of the specific conductivity generation that the specific conductivity of processed liquid descends between first electrode and second electrode inhomogeneous, also can utilize above-mentioned agitation effects that this inhomogeneous processed liquid that is flowed into is become evenly, thereby promote the homogenizing of current density.Even and near the rising of the temperature of the processed liquid first and second electrodes, also can utilize above-mentioned agitation effects to promote the diffusion of heating, electrolysis is carried out effectively.The result is applied to the electric power that applies on first and second electrodes by increase, and current density is further increased, and the flow of processed liquid is further increased, and shortens electrolysis time.When for example on making the hollow structure body of metal that is included in the processed liquid, separating out, the metal precipitation efficiency is improved, thereby realize that the treatment time shortens at first electrode.
In addition, processed liquid is from being in the inner face side as the hollow structure body of first electrode before first electrode flows out, and is that the exterior side at the hollow structure body of first electrode receives electrolysis treatment after flowing out from first electrode, and the electrolysis area is increased considerably.Therefore, even the specific conductivity with the processed liquid of electrode for electrolysis of the present invention is low, also can be with fast speed electrolysis treatment, even and the current density of electrode increase, also because the liquid Wen Buhui of processed liquid rises very highly, and the processed liquid of electrolysis treatment at short notice.
In addition, because be used for realizing that the structure that electrolytic efficiency improves just is provided with a plurality of perforation at the hollow structure body as first electrode, so do not need to make the electrode maximization and electrode area increased, can when keeping miniaturization, improve the efficient of electrolysis treatment.In addition, because can be according to shape as the hollow structure body of first electrode, interval with size, place, number or the setting of the through hole of on the hollow structure body, establishing, flowing of the processed liquid of control such as the total area of perforation, shape is so can also carry out the optimization electrolysis treatment according to the proterties and the various condition of processed liquid easily.
The second aspect present invention electrolyzer is characterised in that: in the electrolyzer of first aspect, above-mentioned treatment trough and above-mentioned hollow structure body have roughly tubular structure.
Use this electrode device, except that the effect of first aspect invention, can also obtain following effect, promptly by above-mentioned treatment trough is become roughly tubular structure with hollow structure system as above-mentioned first electrode, can the electrode area that makes first electrode become big in, with regard to electrolyzer in general still can miniaturization.
The third aspect present invention electrolyzer is characterised in that: first or the electrolyzer of second aspect in, it is a plurality of that above-mentioned a plurality of perforation keep the compartment of terrain to be provided with at the above-below direction of above-mentioned hollow structure body, and roughly equally spaced be provided with a plurality of at left and right directions.
Use this electrode device, except that the effect of first aspect present invention or second aspect, can also obtain following effect: because it is a plurality of to make through hole keep the compartment of terrain to be provided with at the above-below direction as the hollow structure body of first electrode, so can make processed liquid along with the inside of flowing through first electrode flows to the first electrode outside at leisure from each perforation.And, flow so can on each position of left and right directions, produce the high processed liquid of uniformity coefficient because it is a plurality of that perforation roughly equally spaced is provided with at the left and right directions as the hollow structure body of first electrode.Therefore the surface-area of the broadness of hollow structure body can be offered high efficiency electrolysis treatment, thereby improve electrolytic efficiency.
The fourth aspect present invention electrolyzer is characterised in that: in the electrolyzer 1 of first, second or the third aspect,
Above-mentioned treatment trough and above-mentioned hollow structure body are to dispose in the axial mode of length direction;
Above-mentioned first stream is provided with in the mode that can make above-mentioned processed liquid be incorporated into the bottom of above-mentioned hollow structure body;
Above-mentioned second stream disposes in the mode that the above-mentioned processed liquid at the interval that can make the inwall that flows through above-mentioned treatment trough and above-mentioned hollow structure body can import to the outside of above-mentioned treatment trough from the top of above-mentioned treatment trough.
Because this electrolyzer uses first, second or the described electrode device of the third aspect, so can obtain the effect identical with first, second or the third aspect, and when electrolysis treatment, only go into processed liquid from first-class pass, derive processed liquid from second stream, can produce by inside from the stream of each perforation to the effusive processed liquid of hollow structure body of first electrode as the hollow structure body of first electrode, making processed liquid circulation by this stream when, between electrode, apply electric power, can carry out high-level efficiency to processed liquid and handle.
In addition, because in this electrolyzer, above-mentioned treatment trough and above-mentioned hollow structure body are upright in the longitudinal direction, so can not be subjected to the influence of the deflection that causes because of gravity, make as the intravital processed liquid stream of the hollow structure of first electrode evenly.Even and when electrolysis generation gas, also can not make bubble residual in hollow structure body, thereby can make contributions to the raising of electrolytic efficiency by these as first electrode.In addition, processed liquid is imported the bottom of hollow structure body by first stream, and the processed liquid that will flow through the interval of the inwall of treatment trough and hollow structure body by second stream is derived the outside of managing groove everywhere from the top of treatment trough, because configuration by this way, so the flow direction that can make processed liquid from bottom to top, controls the flow of processed liquid easily.Even when precipitates such as metal are deposited in the treatment trough, the hollow structure body of first electrode can not take place to stop up because of throw out yet, can the stability of operation be contributed.
The fifth aspect present invention electrolyzer is characterised in that:
First, second, third and the electrolyzer of fourth aspect in,
Above-mentioned first electrode is as negative electrode,
Above-mentioned second electrode is as anode,
The metal that is included in the above-mentioned processed liquid is separated out on above-mentioned hollow structure body.
This electrolyzer is by carrying out electrolysis to the liquid that contains the metal that desired electrowinning and/or electrolysis remove as above-mentioned processed liquid, so, this metal is separated out on the hollow structure body as first electrode reclaim.
The electrolytic processing method of the processed liquid of sixth aspect present invention is characterised in that:
With the processed liquid of the described electrolyzer electrolysis in the first, second, third, fourth or the 5th aspect.
Because this treatment process is used the electrode device of the first, second, third, fourth or the 5th aspect, so can obtain the same effect in the first, second, third, fourth or the 5th aspect.
The processed liquid electrolytic processing method of seventh aspect present invention is characterised in that: aspect the 6th in the electrolytic processing method of described processed liquid, by the above-mentioned processed liquid of electrolysis, the metal that is included in above-mentioned processed liquid is separated out on above-mentioned hollow structure body reclaim.
By this treatment process,,, reclaims on this metal so being separated out on the hollow structure body because the liquid that comprises the metal that desired electrowinning and/or electrolysis remove is carried out electrolysis as above-mentioned processed liquid.
Description of drawings
Fig. 1 is the sectional view of the electrolyzer of expression embodiment of the present invention.
Fig. 2 is the part sectioned view of another embodiment of expression the present invention.
Fig. 3 is the figure that expression prior art electrolyzer constitutes.
Fig. 4 is the electrolytic condition of the expression embodiment of the invention 1, electrolysis result's table.
Fig. 5 is the electrolytic condition of the expression embodiment of the invention 2, electrolysis result's table.
Fig. 6 is the electrolytic condition of the expression embodiment of the invention 3, electrolysis result's table.
Fig. 7 is the electrolytic condition of the expression embodiment of the invention 4, electrolysis result's table.
Fig. 8 is the electrolytic condition of the expression embodiment of the invention 5, electrolysis result's table.
Fig. 9 is the electrolytic condition of the expression embodiment of the invention 1 to 5, electrolysis result's table look-up.
Embodiment
One example of embodiment of the present invention is described with reference to the accompanying drawings.
Figure 1A is the longitudinal section of the formation of expression electrolyzer one example of the present invention.Figure 1B is the drawing in side sectional elevation of the A-A ' of this electrolyzer, and Fig. 1 C is the B-B ' drawing in side sectional elevation of this electrolyzer.This electrolyzer 1 by the treatment trough 10 that is used for electrolysis treatment, be configured in electrode device 20, the direct supply 30 on the connection electrode device 20 that the electrolysis in the treatment trough 10 use and processed liquid phase formed treatment trough 10 round-robin circulation devices 40.
At first, in Fig. 1 (A), treatment trough 10 is the vertical cylinder shape bodies with diapire 11 and perisporium 12, and the introducing port 13 that imports processed liquid from the outside is set on the bottom of perisporium 12, and on the top of perisporium 12 export mouth 14 that processed liquid is exported to the outside is set.
Be configured in the treatment trough 10 electrode device 20 by as have make processed liquid the electrode 21 (to call hollow electrode 21 in the following text) of the hollow cylindraceous of first electrode of the tectosome of internal circulation and the columniform stick electrode 22 (hereinafter referred to as stick electrode 22) that becomes concentric second electrode as internal configuration at this hollow electrode 21 cylindraceous to formation.In the present embodiment example, hollow electrode 21 and stick electrode 22 be at vertical ground, treatment trough 10 inner concentric cylindraceous ground vertically-arranged, guarantees gap much at one between the inner peripheral surface of the periphery of stick electrode 22 and hollow electrode 21.And between the inner face of the perisporium 12 of treatment trough 10 and hollow electrode 21, the ring-type stream 18 that extends at above-below direction is guaranteed as second stream.In order to support two electrodes 21,22 with such state, and in treatment trough 10 up and down and the support member of configured electrodes up and down 15A, 15B, 16A, 16B in the hollow electrode 21.But the electrode support member 16A in the hollow electrode 21 of upside has the character through liquid.And treatment trough 10 by as insulating material for example resin constitute, make the hollow electrode that constitutes by electro-conductive material 21 and stick electrode 22 electrical isolations.Power supply 30 is connected on the upper end of hollow electrode 21 and stick electrode 22.
On the perisporium of above-mentioned hollow electrode 21,, and the perforation of a plurality of minor diameters is set for the processed liquid that makes circulation hollow electrode 21 inside flows out to the outside of hollow electrode 21.Perforation 23 roughly equally spaced is provided with at the circumferential direction of hollow electrode 21, and keeps the compartment of terrain that suitable number is set at the length direction of hollow electrode.In example shown in the drawings, be configured on equidistant four positions at circumferential direction, so that disposing, the mode that roughly equally spaced arrange mutually the hole site bores a hole 23 in vertical.Because the area in the gap by 23 the size of boring a hole, position, number, hole, hole, shape etc. can be controlled flowing of processed liquid, so can realize optimization according to the proterties of processed liquid etc. and various conditions (when utilizing electrolytic metal recovery the size of the kind of metal, yield, electrolytic speed, device etc.).
At this, just will describe by the preferred configuration example that the outside processed water of perforation outflow is directed to second stream of treatment trough outside from the inside of first electrode.
The position of the upper of perforation 23 preferably is set in the downside of the export mouth 14 of treatment trough 10.This is because if there is perforation 23 below export mouth 14, then 23 pairs of processed liquid of this perforation mobile has positive effect.In addition, will not bore a hole 23 24 of parts of the top that is preferably in hollow electrode 21 are set predetermined height.This part 24 has the function that flow is adjusted because of accumulating processed liquid.The part 24 why not this perforation 23 is set be because can make processed liquid from big this opening end of section to outflow, can prevent to reduce by 23 the liquid stream of boring a hole.And when the pulsating flow because of the pump 41 of circulation device 40 causes the temporary transient fluctuation of flow, can also suppress the possibility of the interior pressure change of treatment trough 10 by the increase and decrease liquid measure.
With regard to being used for the preferred configuration example that processed liquid imports to from the outside of above-mentioned treatment trough as first stream of the inside of the hollow structure body of first electrode is described below.
On the perisporium of the lower end of hollow electrode 21, the influx 25 bigger than above-mentioned perforation 23 is set in four positions of circumferential direction five equilibrium in order to make the processed liquid that imports from introducing port 13 flow into the bottom of hollow electrode 21.Electrode support member 15B with next door function that the ring-type stream 18 between hollow electrode 21 and the treatment trough 10 is separated up and down is being set on the upper side position of influx 25, between the diapire 11 of the electrode support member 15B with this next door function and treatment trough 10, is guaranteeing the ring-type enclosed space 19 that is used to make introducing port 13 that is formed on the treatment trough 10 and the influx 25 that is formed on hollow electrode 21 to be communicated with.
If first stream of Gou Chenging so then can be because of supplying with processed liquid from introducing port 13, and processed liquid is imported to the bottom of hollow electrode 21 by cyclic enclosed space 19.And preferably can be by processed liquid being imported to the bottom of hollow electrode 21, as described as follows, its inside by hollow electrode 21 is flowed out in the treatment trough 10 from each perforation 23, produce the processed liquid stream that exports to treatment trough 10 outsides from export mouth 14.
By the storage vessel 42 by the storage insulation that the pump 41 that constitutes circulation device 40 is set, is used for processed liquid and constitute the pipe arrangement 43,44 of circulation line, realize the circular treatment of processed liquid in the outside of treatment trough 10.Pump 41 makes the processed liquid of deriving from the export mouth 14 of treatment trough 10 turn back to storage vessel 42 introducing port 13 of the processed liquid supply treatment trough 10 in the storage vessel 42.As required, means such as check chemical constitution of processed liquid and proterties and reclaim the filter screen or the strainer of the suspended substance in the processed liquid also can be set in circulation device 40.Certainly, electrolyzer of the present invention also goes for not carrying out the occasion of above-mentioned circular treatment.
The lid 5 of the opening portion, upper end that covers hollow electrode 21 preferably also is set in the upper end of treatment trough 10.This lid 5 is used to prevent that foreign matter is blended in the treatment trough 10, and in the occasion that gas takes place from treatment trough 10, can carry out the atmosphere control in the treatment trough 10 by on this lid 5 ventage etc. being installed.
Effect and electrolytic processing method with regard to above-mentioned electrolyzer describes below.
According to present embodiment, when from electroplating effluent, reclaiming kish, promptly use and contain the solution of metal as processed liquid, as the hollow electrode 21 of first electrode as negative electrode, as the stick electrode 22 of second electrode as anode, make processed liquid generation electrolytic reaction, metal is separated out on hollow electrode 21, describe with regard to this occasion below.
In storage vessel 42, store the solution that contains metal ingredient in advance.The solution that what is called contains metal ingredient is meant the solution (for example supposing that electroplating effluent is an example) that metal is in separate out the state on the electrode by energising in solution.For example can nitric acid that contains dissolved metal in acid or sulfuric acid etc. or in cyanogen etc. the single nickel salt, gold tricyanide solution etc. of dissolution of metals enumerate as an example.In addition, the liquid property that contains the solution of above-mentioned metal ingredient can be acid or alkaline.
When operation, at first will import to the introducing port 13 of treatment trough 10 by pump 41 at the solution in the storage vessel 42.When from introducing port 13 importing solution, solution passes through the ring-type enclosed space 19 in the inner bottom part separation of treatment trough 10, flow into the bottom of hollow electrode 21 by the influx 25 of hollow electrode 21.Solution is flow through the inside of hollow electrode 21 in the mode that is expressed into the top from the below by the outlet pressure of pump 41 then, when flowing through hollow electrode 21 inside by the perforation on the perisporium that is formed on hollow electrode 21 23, flow out to the outside of hollow electrode, effusive solution overflows and discharges from the export mouth 14 of treatment trough 10, flows in the storage vessel 42.
After confirming such solution circulated, just hollow electrode 21 as negative electrode, stick electrode 22 as anode, is supplied with electric power between the two poles of the earth 21,22, the control pump 41 in order to obtain desirable flow quantity, and control electrical current etc.Do like this, metal is separated out on the surface of hollow electrode 21.Therefore can utilize from the means such as sur-face peeling of hollow electrode 21 and extract metal by step through the scheduled time.
When carrying out electrolysis with this electrolyzer 1, because on the perisporium of the hollow electrode 21 that constitutes electrode device 20, a plurality of perforation 23 are set, so processed liquid is when flowing through hollow electrode 21 inside, after slowly flowing to the outside of hollow electrode 21 from each perforation 23, export to the outside of treatment trough 10 at last from export mouth 14 along second stream.This state then with Fig. 1 (A), (B) and (C) is described.At first such as using among Fig. 1 (A) shown in the arrow, processed liquid stream limit rising edge in hollow electrode 21 separates, and enters cyclic stream 18 by each perforation 23.Therefore in the space 28 between hollow electrode 21 and the stick electrode 22, produce a plurality of streams with the 23 corresponding processed liquid of boring a hole, that is to say, not as flowing into the stream that exports the dullness flowing out from one from an inlet, but complicated stream, the flowability of the processed liquid in the hollow electrode 21 is increased, liquid stream is active, has promoted agitation effects.
In addition, at processed liquid when each perforation 23 flows to hollow electrode 21 outside, such as using among Fig. 1 (B), (C) shown in the arrow, in ring-type stream 18 as the part of second stream, constitute complicated turbulent flow and, also fully contact with the periphery wall of hollow electrode 21 in the well-beaten while.Here it is for what runs foul of each other on one side from the stream that is arranged on each different locational perforation 23 effusive each processed liquid, as processed liquid whole constitute along second stream reason towards the stream of outlet 14 on one side.
The result, can be in electrode 21,22 and the increase of processed liquid touch opportunity, even because of the electric conductivity decline of processed liquid causes that the electric conductivity between hollow electrode 21 and the stick electrode 22 is inhomogeneous, also can specific conductivity be become evenly, and promote the even of current density.Even and near the temperature of the processed liquid the hollow electrode 21 rises, can also promote the diffusion of generating heat by agitation effects, so can carry out high efficiency electrolysis.Its result further increases current density by the electric power of increasing supply, and the flow of processed liquid is further increased, thereby can shorten electrolysis time.For example be included in the metal that contains in the processed liquid and separate out occasion on hollow electrode making, can improve by the efficient that makes metal precipitate and reach the purpose that the treatment time shortens.
In addition, understand now that processed liquid was not only accepted electrolysis treatment in the inner face side of hollow electrode 21 but also flowing to the back, outside from hollow electrode 21 at the exterior side of hollow electrode 21 before flowing out from hollow electrode 21.The result increases considerably the electrolysis area.According to above-mentioned reason, because even the electric conductivity of processed liquid descends, also can be with fast speed electrolysis treatment, even and the current density of hollow electrode 21,22 increases, near the temperature of the processed liquid the hollow electrode 21,22 can not rise very greatly yet, so can use the processed liquid of short period of time electrolysis treatment.
Referring again to Fig. 1 (A), occasion at present embodiment, because above-mentioned perforation 23 roughly equally spaced is provided with a plurality of at the circumferential direction of hollow electrode 21, so can be at everybody of the circumferential direction good processed liquid stream of life weighing apparatus of buying property, again because be provided with a plurality of in the length direction maintenance compartment of terrain of hollow electrode 21, make processed liquid along with the inside of flowing through hollow electrode 21 flows to the outside of hollow electrode 21 23 at leisure from each perforation, therefore the area of the broadness of hollow electrode 21 can be offered the high electrolysis treatment of efficient.
In addition, because hollow electrode 21 and stick electrode 22 are configured in the treatment trough 10 vertically,, make the stream of the processed liquid in hollow electrode 21 even so can not can be subjected to the obliquity effects that causes because of gravity.It is not and residual in hollow electrode 21 as far as possible when even gas takes place when electrolysis yet.
In addition, because the influx 25 that makes the introducing port 13 of the bottom that is arranged on treatment trough 10 and be arranged on the hollow electrode 21 is communicated with at the ring-type enclosed space 19 of the inner bottom part of treatment trough 10 by guaranteeing, so processed liquid balance can be imported to well the inside of hollow electrode 21, and can make the processed liquid stream of each position of circumferential direction in hollow electrode 21 even.
According to above reason, can help the raising of electrolytic efficiency, and because the electrode support member 15B with next door function prevents the adverse current (decline) of the processed liquid in the treatment trough 10, sneak into introducing port 13 so can also prevent throw out such as metal.And because the introducing port 13 of processed liquid is configured in the bottom of treatment trough 10, export mouth 14 is configured in the top of treatment trough 10,, thereby controls the flow of processed liquid easily so the direction that can make processed liquid stream from bottom to top.Even when precipitates such as metal deposit in treatment trough 10, can accomplish that also introducing port is not deposited thing and stops up, can help the stabilization of operating.
Because be used to realize that the primary structure that electrode efficiency improves just is provided with a plurality of perforation 23 on the perisporium of hollow electrode 21, so there is no need to make hollow electrode 21,22 maximizations and electrode area increased, both miniaturization can be kept, and the high-level efficiency of electrolysis treatment can be realized again.And because can be by size, the place number of the perforation 23 of setting on hollow electrode 21, or the processed liquid streams of control such as the total area of the interval that is provided with, perforation and shape, so can realize the electrolysis treatment optimization easily according to the proterties and the various condition of processed liquid.
In addition, though present embodiment is represented is that the bottom of 21 the perisporium from first stream to hollow electrode forms influx 25, and make processed liquid flow into the occasion of the inside of hollow electrode 21 from this influx 25, but shown in also can another embodiment as shown in Figure 2, between the diapire 11 of the lower end of hollow electrode 21 and treatment trough 10, reserve the gap, thereby make processed liquid flow into the inside of hollow electrode 21 as far as possible from the lower ending opening 21a of hollow electrode 21.
In addition, though above-mentioned embodiment be expression as the hollow electrode 21 of first electrode, as the section form of the stick electrode 22 of second electrode for circular occasion, also can be trilateral and star etc.But, preferably make both section forms similar from making the distance between hollow electrode 21 and the stick electrode 22 keep evenly considering.And also can according to the fluidity that processed liquid is set and be provided with electrolyzer etc. around requirement, second electrode is formed sphere or ellipsoid of revolution shape, in addition, also can make spirrillum, netted to second electrode.Though and the section form of treatment trough 10 and material etc. can be considered suitably selection such as electroconductibility and erosion resistance, preferably use stainless steel, iron, carbon etc.
Though in the present embodiment, show the occasion of vertical ground vertically-arranged hollow electrode 21 and stick electrode 22, also can be with posture settings such as level and inclinations.
In addition, separate out the occasion of using electrolyzer, also can utilize the occasion that in treatment facilities such as water treatment and draining processing, reclaims suspended substance though illustrated in the above-mentioned embodiment at metal.And also can only electrode device 20 taking-ups be arranged in the treatment trough with other purpose simultaneously, and be provided as the part of first and second streams.
The embodiment of the processed liquid of actual treatment is described with electrolyzer of the present invention below.
(electrolyzer) uses the electrolyzer shown in Fig. 1.Hollow electrode as first electrode is the stainless steel of φ 50 * 4001, is that φ 30 * 4001 is made of iron as the stick electrode of second electrode.On the perisporium of hollow electrode, as shown in Figure 1, keep the compartment of terrain and the perforation of φ 10 is set at 20 places with interval about equally at left and right directions at above-below direction.
(processed liquid) is with containing the gold plating bath of golden 0.98g/l as processed liquid.
(electrolytic condition) with voltage, current supply electrode, measures the gold concentration in the processed liquid as shown in Figure 4 at regular intervals.
The electrowinning speed of (electrolysis result) gold is 2Ahr/g.
(electrolyzer) uses electrolyzer similarly to Example 1.
(processed liquid) approaches electroplate liquid as processed liquid with the gold that contains golden 0.91g/l.
(electrolytic condition) with voltage, current supply electrode, measures the gold concentration in the processed liquid as shown in Figure 5 at regular intervals.
The electrowinning speed of (electrolysis result) gold is 6Ahr/g.
(electrolyzer) uses electrolyzer similarly to Example 1.
(processed liquid) approaches electroplate liquid as processed liquid with the gold that contains golden 0.67g/l.
(electrolytic condition) with voltage, current supply electrode, measures the gold concentration in the processed liquid as shown in Figure 6 at regular intervals.
The electrowinning speed of (electrolysis result) gold is 10Ahr/g.
(electrolyzer) uses electrolyzer similarly to Example 1.
(processed liquid) with have contain palladium 0.12g/l and cupric 0.45g/l pre-electroplating treatment liquid as processed liquid.
(electrolytic condition) with voltage, current supply electrode, measures palladium concentration and copper concentration in the processed liquid as shown in Figure 7 at regular intervals.
The electrowinning speed of (electrolysis result) palladium is 6Ahr/g, and the electrowinning speed of copper is 2Ahr/g.
(electrolyzer) uses electrolyzer similarly to Example 1.
(processed liquid) with have contain palladium 0.058g/l and cupric 0.26g/l pre-electroplating treatment liquid as processed liquid.
(electrolytic condition) with voltage, current supply electrode, measures palladium concentration and copper concentration in the processed liquid as shown in Figure 8 at regular intervals.
The electrowinning speed of (electrolysis result) palladium is 109Ahr/g, and the electrowinning speed of copper is 8Ahr/g.
Figure 9 illustrates processed liquid, the electrolytic condition of above embodiment 1 to 5, electrolysis result's table look-up.
As described above, the present invention can increase the touch opportunity of electrode and processed liquid, because the promotion of the homogenization of current density and heating diffusion, and electrolytic efficiency is increased.Therefore make metal in processed liquid separate out occasion on the electrode with hollow structure body, can make the treatment time shortening because of the metal eduction rate is increased.And, just a plurality of perforation are set on the perisporium of electrode because be used to realize these structure, so do not need that electrode is maximized and the area of increase electrode, can when keeping miniaturization and simple structure, realize the raising of electrolysis treatment efficient.
Claims (7)
1. an electrolyzer is that electric power is applied to the device that on first and second electrodes that are configured in the treatment trough the processed liquid in the above-mentioned treatment trough is carried out electrolysis treatment, it is characterized in that:
Above-mentioned first, second electrode and first and second stream are set in above-mentioned treatment trough;
Above-mentioned first electrode is the hollow structure body that is provided with a plurality of perforation, and disposes under the state of guaranteeing with the interval of above-mentioned treatment trough inwall;
Above-mentioned second electrode is configured in the inside of above-mentioned hollow structure body;
Above-mentioned first stream is incorporated into above-mentioned processed liquid the inside of hollow structure body from the outside of above-mentioned treatment trough.
Above-mentioned second stream makes from the inside of above-mentioned hollow structure body above-mentioned processed liquid by above-mentioned perforation outer wall and the outside that imports to above-mentioned treatment trough, the interval of above-mentioned treatment trough inwall by above-mentioned hollow structure body.
2. electrolyzer as claimed in claim 1 is characterized in that: above-mentioned treatment trough and above-mentioned hollow structure body have roughly cylinder-like structure.
3. electrolyzer as claimed in claim 1 or 2 is characterized in that: above-mentioned a plurality of perforation are provided with a plurality of in the above-below direction maintenance compartment of terrain of above-mentioned hollow structure body, and roughly equally spaced are provided with a plurality of at left and right directions.
4. as claim 1,2 or 3 described electrolyzers, it is characterized in that:
Above-mentioned treatment trough and above-mentioned hollow structure body erectly dispose at length direction;
Above-mentioned first stream disposes in the mode that can make above-mentioned processed liquid import to the bottom of above-mentioned hollow structure body;
Above-mentioned second stream disposes in the above-mentioned processed liquid at the interval that can make the inwall that flows through above-mentioned treatment trough and above-mentioned hollow structure body exports to the outside of above-mentioned treatment trough from the top of above-mentioned treatment trough mode.
5. as claim 1,2,3 or 4 described electrolyzers, it is characterized in that:
Above-mentioned first electrode constitutes negative electrode;
Above-mentioned second electrode constitutes anode;
The metal that comprises in the above-mentioned processed liquid is separated out on above-mentioned hollow structure body.
6. the electrolytic processing method of a processed liquid is characterized in that:
With handling processed electrolytic solution as claim 1,2,3,4 or 5 described electrolyzers.
7. the electrolytic processing method of processed liquid as claimed in claim 6 is characterized in that:
By the above-mentioned processed liquid of electrolysis, the metal that is included in the above-mentioned processed liquid is separated out on above-mentioned hollow structure body, and reclaim.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003031114A JP4355790B2 (en) | 2003-02-07 | 2003-02-07 | Electrolytic apparatus and electrolytic treatment method |
| JP31114/2003 | 2003-02-07 | ||
| JP31114/03 | 2003-02-07 |
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| CN1519395A true CN1519395A (en) | 2004-08-11 |
| CN1263895C CN1263895C (en) | 2006-07-12 |
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| CN (1) | CN1263895C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967652A (en) * | 2010-11-11 | 2011-02-09 | 利尔化学股份有限公司 | Electrolytic reaction device |
| CN104828913A (en) * | 2015-05-25 | 2015-08-12 | 北京华瑞创源环保科技有限公司 | Method for improving waste water electrooxidation efficiency by hollow electrode plates |
| CN105887134A (en) * | 2015-01-26 | 2016-08-24 | 先丰通讯股份有限公司 | Electrochemical reaction method and electrochemical trough |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090159454A1 (en) | 2007-12-20 | 2009-06-25 | Air Products And Chemicals, Inc. | Divided electrochemical cell and low cost high purity hydride gas production process |
| JP6465816B2 (en) * | 2013-02-14 | 2019-02-06 | アライアンス・マグネシウム | HYDROGEN GAS DIFFUSION ANODE ASSEMBLY DEVICE FOR GENERATING HCl AND ELECTROLYTIC CELL INCLUDING THE ASSEMBLY DEVICE |
| KR102504992B1 (en) * | 2021-04-06 | 2023-02-28 | 김희우 | Portable Flow-type electrolysis Apparatus |
| KR102504993B1 (en) * | 2021-04-06 | 2023-02-28 | 김희우 | Flow-type Electrolysis Apparatus having inserted electrode structure |
| KR102504991B1 (en) * | 2021-04-06 | 2023-02-28 | 김희우 | Self-powered Electrolysis System having a hydroelectric power element |
-
2003
- 2003-02-07 JP JP2003031114A patent/JP4355790B2/en not_active Expired - Fee Related
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2004
- 2004-01-17 CN CNB2004100028200A patent/CN1263895C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967652A (en) * | 2010-11-11 | 2011-02-09 | 利尔化学股份有限公司 | Electrolytic reaction device |
| CN105887134A (en) * | 2015-01-26 | 2016-08-24 | 先丰通讯股份有限公司 | Electrochemical reaction method and electrochemical trough |
| CN104828913A (en) * | 2015-05-25 | 2015-08-12 | 北京华瑞创源环保科技有限公司 | Method for improving waste water electrooxidation efficiency by hollow electrode plates |
| CN104828913B (en) * | 2015-05-25 | 2016-11-30 | 中大立信（北京）技术发展有限公司 | A kind of method using hollow electrode plate to improve Wastewater by Electric oxidation efficiency |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4355790B2 (en) | 2009-11-04 |
| JP2004238704A (en) | 2004-08-26 |
| CN1263895C (en) | 2006-07-12 |
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