CN110453240A - The recyclable device and its working method of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid - Google Patents
The recyclable device and its working method of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid Download PDFInfo
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- CN110453240A CN110453240A CN201910893565.XA CN201910893565A CN110453240A CN 110453240 A CN110453240 A CN 110453240A CN 201910893565 A CN201910893565 A CN 201910893565A CN 110453240 A CN110453240 A CN 110453240A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/46—Regeneration of etching compositions
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
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Abstract
The present invention relates to the recyclable devices and its working method of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid, comprising: the first storage container (1), anode chamber's AC cylinder (2), electrolytic cell (3), waste water station (4), cathode chamber AC cylinder (5), the second storage container (6), third storage container (7), ejector (8), chlorine air hose (12)；First storage container (1) is for storing etching solution electricity stripping liquid；Second storage container (6) is for storing acid etching regenerated liquid；Third storage container (7) is for storing recycling regeneration of hydrochloric acid liquid；Using the recyclable device and its working method of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid of the invention, the hydrochloric acid in electric stripping liquid can be preferably recycled.
Description
Technical field
The invention patent relates to the resource reclaim technical equipment field in energy conservation and environmental protection, in particular to a kind of acidic etching liquids
The recyclable device and its working method of hydrochloric acid in electric stripping liquid.
Background technique
Contain a large amount of copper ion in etching solution, how copper ion therein to be put forward, be that scholars study always
Content.
Such as: Harbin Institute of Technology " Wei Qifeng " professor, 108624909 A of CN disclose it is a kind of from acid etching liquid and
The method of electrolytic recovery copper, belongs to technical field of resource recovery in PCB waste material.Directly reacted using useless etching liquid and PCB waste material
Metal is dissolved, reclaiming metals copper is passed through.Under certain condition, smashed PCB waste material is dissolved in useless etching liquid, is obtained
The solution arrived carries out oxidation regeneration in electrolyzer with dual membranes and three chambers anode chamber, while carrying out acid copper, the recycling of copper in cathode chamber
Rate can achieve 98% or more.
However, how previous research mentions copper if alwaying pay attention to, but for remaining acid solution, i.e. electric clear liquid, time
Receipts also have important economic value and the higher value of environmental protection.[electric clear liquid is acidic etching waste liquid (containing Cu2+、Cl-、H+) In
Under electrolysis, copper ion is separated into the rear remaining waste water containing hydrogen ion and chloride ion with metallic copper].
The existing research for etching liquid recycling hydrochloric acid is as follows: a kind of recycling containing copper etchant solution of 106587105 A of CN
The recovery method of copper chloride acid etching liquid in method more particularly to a kind of printed circuit board.Its technical problems to be solved is
There is provided a kind of recycling of resource category comprehensively, the printed circuit high-efficient, without the discharge of waste residue exhaust gas, safety and sanitation environmental protection of resource reclaim
The recovery method of copper chloride acid etching liquid in plate.The recovery method realizes the recycling of each substance, first by step a-h
Hydrochloric acid is obtained by distillation, then sodium chloride is obtained by crystallization, obtains elemental copper finally by electrolysis；It overcomes under prior art
Copper chloride acid etching liquid recycling the shortcomings that there are overall economic efficiencies is low, generate harmful substance, pollution environment, reached money
Source category recycling is comprehensively, resource reclaim is high-efficient, discharges without waste residue exhaust gas, the effect of safety and sanitation environmental protection, has very strong reality
With property, it is suitble to promote the use of.
109004066 A of CN provides the device that a kind of etching liquid recycles, and belongs to the secondary of waste liquid in etching technics slot
Utilize technical field.Etch the device that etching liquid recycles, including etching technics slot, etching liquid supply storage bin, HF supply
Storage bin, pure water supply storage bin and process for etching slot.Etching technics slot is connected to etching liquid supply storage bin, etching liquid supply
Storage bin, HF supply storage bin and pure water supply storage bin are connected to process for etching slot.It is recycled by this etching liquid
Waste liquid in etching technics slot can be carried out secondary use and avoid acid for carrying out the production of process for etching by the setting of device
The waste of solution, also can be more environmentally-friendly.
Above two mode for hydrochloric acid recycling there are the rate of recovery it is lower, equipment investment is big the problems such as.Therefore, one is researched and developed
Kind is suitable for the device of electric clear liquid recycling hydrochloric acid, economic value with higher and environmental protection value.
Summary of the invention
The object of the present invention is to provide a kind of recyclable devices of hydrochloric acid in acidic etching liquid electricity stripping liquid, to solve existing skill
The recycling problem of hydrochloric acid in art.
It is a further object of the present invention to provide a kind of work sides of the recyclable device of hydrochloric acid in acidic etching liquid electricity stripping liquid
Formula, to solve the problems, such as how to recycle the hydrochloric acid in electric stripping liquid.
The recyclable device of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid, comprising: the first storage container (1), anode chamber AC
Cylinder (2), electrolytic cell (3), waste water station (4), cathode chamber AC cylinder (5), the second storage container (6), third storage container (7), jet stream
Device (8), chlorine air hose (12)；
First storage container (1) is for storing etching solution electricity stripping liquid；
Second storage container (6) is for storing acid etching regenerated liquid；
Third storage container (7) is for storing recycling regeneration of hydrochloric acid liquid；
Wherein, electrolytic cell (3) includes: anode chamber (3-1), cathode chamber (3-2), with selectivity between cathode chamber and anode chamber
Cationic membrane separates；Cathode plate (11) are equipped in cathode chamber (3-2), are equipped with anode plate (10) at anode chamber (3-1)；The sun
Pole room (3-1) is set as cabinet confined space, is connect by chlorine air hose with ejector (8)；
First storage container (1) is connect with the anode chamber AC cylinder (2) by pipeline, the anode chamber AC cylinder (2)
It is connected to anode chamber (3-1)；
Second storage container (6) is connect with cathode chamber AC cylinder (5) by pipeline, the cathode chamber AC cylinder (5) and yin
Pole room (3-2) connection；
The cathode chamber AC cylinder (5) is connected to third storage container (7)；
Anode chamber (3-1) is connected to waste liquid station (4).
Further, electric clear liquid is acidic etching waste liquid under electrolysis, is remained after copper ion is separated with metallic copper
The remaining waste water containing hydrogen ion and chloride ion.
Further, acid etching regenerated liquid is acidic etching waste liquid under electrolysis, by most copper ion with metal
Etching solution containing part copper ion, hydrogen ion, chloride ion after copper is separated.
Further, recycling regeneration of hydrochloric acid liquid is after being handled electric stripping liquid hydrochloric acid being transferred to acid etching regenerated liquid,
Improve acid reclaim salt solution acid concentration, recycling regeneration of hydrochloric acid liquid can be back to etching production line and recycle.
Further, cathode plate uses cathode titanium plates, and anode plate uses rare metal coating titanium plate.
Further, ejector is that regenerated liquid is pumped into ejector by high pressure pumping to generate negative pressure, and chlorine is pumped into and is penetrated
Flow device in regenerated liquid hybrid reaction.
Further, electric stripping liquid enters from anode chamber's low level, and is expelled to waste water station processing from anode chamber's high position.
Further, acid etching regenerated liquid enters from cathode chamber (3-2) low level, is expelled to yin from cathode chamber (3-2) high position
Pole room AC cylinder (5).
The working method of the recyclable device of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid,
After cathode chamber AC cylinder (5) are added from the second storage container (6) in acid etching regenerated liquid, in cathode chamber AC cylinder (5)
Acid etching regenerated liquid and electric tank cathode room regenerated liquid mutual circulation；
After anode chamber AC cylinder (2) are added from the first storage container (1) in electric stripping liquid, anode chamber (3-1) is entered back into, in straight electricity
Under galvanic electricity effect, displacement can occur for the zwitterion in liquid medicine；Hydrogen ion in anode chamber (3-1) in electric clear liquid penetrate from
Sub- film enters in the regenerated liquid of cathode chamber (3-2), while chloride ion becomes chlorine precipitation in anode chamber (3-1)；
And second order copper ion becomes monovalence copper in cathode chamber (3-2)；Anode chamber (3-1) generates chlorine and passes through closed chlorine wind
Pipe (12), which reacts under ejector (8) effect with univalent copper ion in the regenerated liquid in cathode chamber (3-2), generates bivalent cupric ion；
The hydrochloric acid in the electric stripping liquid in anode chamber (3-1) is transferred into acid etching regenerated liquid to realize, electric stripping liquid passes through again
Supersalt acid recovery heel row goes to waste water station (4) to handle；
Being transferred to third storage container production line to be etched after acid etching regenerated liquid recycling hydrochloric acid in cathode chamber (3-2) makes
With.
By adopting the above technical scheme, compared with prior art, advantage includes the following.
First, the problem to be solved in the present invention is: how to utilize the HCl recovery in electric stripping liquid.Its technique thinking is
By the HCl recovery in electric clear liquid into acid etching regenerated liquid, and then recycling regeneration of hydrochloric acid liquid is formed, returns to etching solution production
In line.Its advantage first is that realize the recycling of electric clear liquid hydrochloric acid, second is that acid etching regenerated liquid do not need yet supplement hydrochloric acid or
Only require supplementation with less hydrochloric acid.
The second, the first storage container is connect with anode chamber's AC cylinder by pipeline, anode chamber's AC cylinder and electrolyzer anode chamber's phase
Logical, waste liquid enters anode chamber's AC cylinder from pipeline and enters back into anode chamber, and the electric stripping liquid after recycling hydrochloric acid is discharged from anode chamber.Second
Storage container is connect with cathode chamber AC cylinder by pipeline, and cathode chamber AC cylinder is connected to mutual circulation with electric tank cathode room, and acidity is again
Raw liquid enters cathode chamber AC cylinder from pipeline, is discharged into third storage container after recycling hydrochloric acid.This technology equipment realizes acidity
The recycling of hydrochloric acid in the electric stripping liquid that etching solution recycling generates, has reached while mention Copper treatment, reduces electric stripping
The processing cost of liquid reaches the national policy of energy-saving and emission-reduction, meets industry utilization, with splendid economic benefit and society's effect
Benefit.
Detailed description of the invention:
Fig. 1: the structural schematic diagram of the recyclable device of hydrochloric acid in the acidic etching liquid electricity stripping liquid of embodiment one.
Fig. 2: the design diagram (vertical view) of the electrolytic cell of embodiment one.
Fig. 3: the cathode chamber AC cylinder of embodiment one, the second storage container, the connection schematic diagram of third storage container.
Specific embodiment
Embodiment one: the recyclable device of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid, including the first storage container 1, sun
Pole room AC cylinder 2, electrolytic cell 3, waste water station 4, cathode chamber AC cylinder 5, the second storage container 6, third storage container 7, ejector 8, chlorine
Gas air hose 12；
First storage container 1 is for storing etching solution electricity stripping liquid；
Second storage container 6 is for storing acid etching regenerated liquid；
Third storage container 7 is for storing recycling regeneration of hydrochloric acid liquid；
Electrolytic cell 3 includes: anode chamber 3-1, cathode chamber 3-2, and cathode chamber is separated with anode chamber with selective cationic membrane；
Cathode plate 11 is equipped in cathode chamber 3-2,3-1 is equipped with anode plate 10 in anode chamber；
The anode chamber 3-1 is set as cabinet confined space, is connect by chlorine air hose with ejector 8；
First storage container 1 is connect with the anode chamber AC cylinder 2 by pipeline, the anode chamber AC cylinder 2 and anode
Room 3-1 connection；
Second storage container 6 is connect with cathode chamber AC cylinder 5 by pipeline, the cathode chamber AC cylinder 5 and cathode chamber 3-2
Connection；
The cathode chamber AC cylinder 5 is connected to third storage container 7；
Anode chamber 3-1 is connected to waste liquid station 4.
Further, electric clear liquid is acidic etching waste liquid (containing Cu2+, Cl-, H+) under electrolysis, by copper ion with metal
Copper separates the rear remaining waste water containing hydrogen ion and chloride ion.
Further, acid etching regenerated liquid is acidic etching waste liquid (containing Cu2+, Cl-, H+) under electrolysis, by big portion
Etching solution containing part copper ion, hydrogen ion, chloride ion after dividing copper ion to separate with metallic copper.
Further, recycling regeneration of hydrochloric acid liquid is after being handled electric stripping liquid hydrochloric acid being transferred to acid etching regenerated liquid,
Improve acid reclaim salt solution acid concentration, recycling regeneration of hydrochloric acid liquid can be back to etching production line and recycle.
Further, cathode plate 11 uses cathode titanium plates, and anode plate 10 uses rare metal coating titanium plate.
Further, ejector is that regenerated liquid is pumped into ejector by high pressure pumping to generate negative pressure, and chlorine is pumped into and is penetrated
Flow device in regenerated liquid hybrid reaction.
Further, electric stripping liquid enters from anode chamber's 3-1 low level, and is expelled to from waste water station 4 from anode chamber's 3-1 high position
Manage
Further, acid etching regenerated liquid enters from cathode chamber 3-2 low level, is expelled to cathode chamber from a cathode chamber 3-2 high position
AC cylinder 5.
The working method of the recyclable device of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid,
Acid erosion of the acid etching regenerated liquid after the second storage container 6 addition cathode chamber AC cylinder 5, in cathode chamber AC cylinder 5
Carve regenerated liquid and electric tank cathode room regenerated liquid mutual circulation；
Electric stripping liquid enters back into anode chamber 3-1 after the first storage container 1 addition anode chamber AC cylinder 2, makees in constant current electricity
Under, displacement can occur for the zwitterion in liquid medicine；Hydrogen ion in anode chamber 3-1 in electric clear liquid enters through ionic membrane
Chloride ion becomes chlorine precipitation into the regenerated liquid of cathode chamber 3-2, while in anode chamber 3-1；
And second order copper ion becomes monovalence copper in cathode chamber 3-2；Anode chamber 3-1 generates chlorine and passes through closed chlorine air hose 12
It is reacted under the effect of ejector 8 with univalent copper ion in the regenerated liquid in cathode chamber 3-2 and generates bivalent cupric ion；To realize by
The hydrochloric acid in electric stripping liquid in anode chamber 3-1 is transferred into acid etching regenerated liquid, after electric stripping liquid is using HCl recovery
The processing of venting waste water station 4；
Being transferred to third storage container production line to be etched after acid etching regenerated liquid recycling hydrochloric acid in cathode chamber 3-2 makes
With.
The production principle of embodiment one is:
Acidic etching liquid electricity clear liquid waste liquid is held in anode chamber 3-1 and positive electricity extremely rare metal coating titanium plate；
Acidic etching liquid regenerated liquid, negative electricity extremely titanium plate are held in cathode chamber 3-2.
Under the function of current, the hydrogen ion in anode chamber 3-1 in electric clear liquid enters cathode chamber through cation-exchange membrane
3-2, while anode chamber's 3-1 chloride ion loses and electronically forms chlorine precipitation:
2Cl-- 2e=Cl2；
Bivalent cupric ion in cathode chamber in acid etching regenerated liquid, which obtains electronics, becomes univalent copper ion:
Cu2++ e=Cu+；
Although the chloride ion in regenerated liquid is mobile toward anode chamber 3-1 under the function of current, in the selectivity of cationic membrane
Effect cannot enter anode chamber 3-1 through ionic membrane；
The chlorine that anode chamber 3-1 is generated etches the univalent copper ion in regenerated liquid under the effect of ejector 8 with cathode chamber 3-2
Reaction generates bivalent cupric ion:
2Cu++Cl2=2Cu2++2Cl-；
Such ringing, prevent univalent copper ion continue electronics become metallic copper precipitation；
In the technique whole process, hydrogen ion in electric stripping liquid enters etching solution regenerated liquid by ionic membrane, and chlorine
Ion enters regenerated liquid with monovalence copper reactive mode again by becoming chlorine, and HCl in electric stripping liquid is made to be transferred to regenerated liquid
(H+ ion is migrated in cathode chamber), has achieved the purpose that electric clear liquid HCl recovery utilizes.
The ingredient of electric stripping liquid, acid etching regenerated liquid, acidic etching waste liquid, recycling regeneration of hydrochloric acid liquid in embodiment one
It is as follows:
Electric clear component of effluent has: 2.0-3.0mol/L
HCl
Acid etching regenerated liquid ingredient has 0.4-0.7mol/LCuCl2、2.0-2.5mol/LHCl；
Acidic etching waste liquid ingredient 2.0-2.5mol/L CuCl2,1.8-2.5mol/L HCl；
Recycle regeneration of hydrochloric acid liquid ingredient 0.4-0.7mol/LCuCl2,2.5-3.5mol/L HCl；
It follows that waste water concentration of hydrochloric acid is about 0.5mol/L, and the rate of recovery is about 80% after the clear devil liquor recovery hydrochloric acid of electricity.
The production principle of embodiment one is explained below:
Electrolytic cell is divided into cathode chamber and anode chamber by " electrolysis with ion-exchange film technique " involved in HCl recovery, and diaphragm is to adopt
The selective cationic membrane of apparatus,
Under the function of current, the hydrogen ion in anode chamber in electric clear liquid enters cathode chamber through cation-exchange membrane, together
When anode chamber chloride ion lose and electronically form chlorine precipitation；Reaction equation: 2Cl-- 2e=Cl2；
Bivalent cupric ion in cathode chamber in acid etching regenerated liquid, which obtains electronics, becomes univalent copper ion (Cu2++ e=Cu+)；Although the chloride ion in regenerated liquid is mobile toward anode chamber under the function of current, the selectively acting of cationic membrane cannot
Enter anode chamber through ionic membrane.
The chlorine that anode chamber generates reacts life with the univalent copper ion in cathode chamber etching regenerated liquid under ejector effect
At bivalent cupric ion (2Cu++Cl2=2Cu2++2Cl-)；Such ringing, prevent univalent copper ion continue electronics become gold
Belong to copper to be precipitated；
In the technique whole process, hydrogen ion in electric stripping liquid enters etching solution regenerated liquid by ionic membrane, and chlorine
Ion enters regenerated liquid with monovalence copper reactive mode again by becoming free chlorine, and HCl in electric stripping liquid is made to be transferred to regeneration
Liquid has achieved the purpose that electric clear liquid HCl recovery utilizes.
, the preferred embodiment of present aspect has already been described in detail above, it is understood that having read of the invention above-mentioned say
After awarding content, those skilled in the art can make various modifications or changes to the present invention.Such equivalent forms equally fall into this Shen
It please be in the protection scope of the appended claims.
Claims (9)
1. the recyclable device of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid characterized by comprising the first storage container (1),
Anode chamber's AC cylinder (2), electrolytic cell (3), waste water station (4), cathode chamber AC cylinder (5), the second storage container (6), third storage container
(7), ejector (8), chlorine air hose (12)；
First storage container (1) is for storing etching solution electricity stripping liquid；
Second storage container (6) is for storing acid etching regenerated liquid；
Third storage container (7) is for storing recycling regeneration of hydrochloric acid liquid；
Wherein, electrolytic cell (3) includes: anode chamber (3-1), cathode chamber (3-2), between cathode chamber and anode chamber with selectivity sun from
Sub- film separates；Cathode plate (11) are equipped in cathode chamber (3-2), are equipped with anode plate (10) at anode chamber (3-1)；The anode chamber
(3-1) is set as cabinet confined space, is connect by chlorine air hose with ejector (8)；
First storage container (1) is connect with the anode chamber AC cylinder (2) by pipeline, the anode chamber AC cylinder (2) and sun
Pole room (3-1) connection；
Second storage container (6) is connect with cathode chamber AC cylinder (5) by pipeline, the cathode chamber AC cylinder (5) and cathode chamber
(3-2) connection；
The cathode chamber AC cylinder (5) is connected to third storage container (7)；
Anode chamber (3-1) is connected to waste liquid station (4).
2. the recyclable device of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid as described in claim 1, which is characterized in that electricity is clear
Liquid is acidic etching waste liquid under electrolysis, by copper ion with metallic copper separate it is rear it is remaining containing hydrogen ion and chlorine from
The waste water of son.
3. the recyclable device of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid as described in claim 1, which is characterized in that acid
Etching regenerated liquid is acidic etching waste liquid under electrolysis, contains part after most copper ion is separated with metallic copper
The etching solution of copper ion, hydrogen ion, chloride ion.
4. the recyclable device of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid as described in claim 1, which is characterized in that recycling
Regeneration of hydrochloric acid liquid is after being handled electric stripping liquid hydrochloric acid being transferred to acid etching regenerated liquid, to make acid reclaim salt solution acid concentration
It improves, recycling regeneration of hydrochloric acid liquid can be back to etching production line and recycle.
5. the recyclable device of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid as described in Claims 1-4 any one, special
Sign is that cathode plate uses cathode titanium plates, and anode plate uses rare metal coating titanium plate.
6. the recyclable device of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid as described in Claims 1-4 any one, special
Sign is, ejector is that regenerated liquid is pumped into ejector by high pressure pumping to generate negative pressure, by chlorine be pumped into ejector with
Regenerated liquid hybrid reaction.
7. the recyclable device of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid as described in Claims 1-4 any one, special
Sign is that electric stripping liquid enters from anode chamber's low level, and is expelled to waste water station processing from anode chamber's high position.
8. the recyclable device of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid as described in Claims 1-4 any one, special
Sign is that acid etching regenerated liquid enters from cathode chamber (3-2) low level, is expelled to cathode chamber AC cylinder from cathode chamber (3-2) high position
(5)。
9. being applied to the work such as the recyclable device of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid of claim 1 to 8 any one
Make method, it is characterised in that:
Acidity after cathode chamber AC cylinder (5) are added from the second storage container (6) in acid etching regenerated liquid, in cathode chamber AC cylinder (5)
Etch regenerated liquid and electric tank cathode room regenerated liquid mutual circulation；
After anode chamber AC cylinder (2) are added from the first storage container (1) in electric stripping liquid, anode chamber (3-1) is entered back into, in constant current electricity
Under effect, displacement can occur for the zwitterion in liquid medicine；Hydrogen ion in anode chamber (3-1) in electric clear liquid penetrates ionic membrane
It enters in the regenerated liquid of cathode chamber (3-2), while chloride ion becomes chlorine precipitation in anode chamber (3-1)；
And second order copper ion becomes monovalence copper in cathode chamber (3-2)；Anode chamber (3-1) generates chlorine and passes through closed chlorine air hose
(12) it is reacted under ejector (8) effect with univalent copper ion in the regenerated liquid in cathode chamber (3-2) and generates bivalent cupric ion；From
And realize the hydrochloric acid in the electric stripping liquid in anode chamber (3-1) is transferred into acid etching regenerated liquid, electric stripping liquid using
Venting waste water station (4) is handled after HCl recovery；
Third storage container production line to be etched is transferred to after acid etching regenerated liquid recycling hydrochloric acid in cathode chamber (3-2) to use.
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| CN201910893565.XA CN110453240A (en) | 2019-09-20 | 2019-09-20 | The recyclable device and its working method of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid |
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| CN201910893565.XA CN110453240A (en) | 2019-09-20 | 2019-09-20 | The recyclable device and its working method of hydrochloric acid in a kind of acidic etching liquid electricity stripping liquid |
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| CN110453240A true CN110453240A (en) | 2019-11-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111020633A (en) * | 2019-12-23 | 2020-04-17 | 广东臻鼎环境科技有限公司 | Treatment method of acidic etching waste liquid |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111020633A (en) * | 2019-12-23 | 2020-04-17 | 广东臻鼎环境科技有限公司 | Treatment method of acidic etching waste liquid |
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Application publication date: 20191115 |