CN105002550A - Device and process for reducing concentration of lead ions in electrolyte of electrolytic copper foil - Google Patents
Device and process for reducing concentration of lead ions in electrolyte of electrolytic copper foil Download PDFInfo
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- CN105002550A CN105002550A CN201510408840.6A CN201510408840A CN105002550A CN 105002550 A CN105002550 A CN 105002550A CN 201510408840 A CN201510408840 A CN 201510408840A CN 105002550 A CN105002550 A CN 105002550A
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- electrolytic solution
- storage tank
- electrolyte
- concentration
- copper foil
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Abstract
The invention relates to a device for reducing the concentration of lead ions in an electrolyte of an electrolytic copper foil. The device comprises an electrolyte storage tank, a filter, a circulating pump, an electrolyte discharge pipe and an electrolyte return pipe, wherein the filter and the circulating pump are connected in series; one end of the electrolyte discharge pipe is connected with the filter, and the other end of the electrolyte discharge pipe extends into the electrolyte storage tank to be positioned at the upper half of the electrolyte storage tank; one end of the electrolyte return pipe is connected with the circulating pump, and the other end of the electrolyte return pipe extends into the electrolyte storage tank to be positioned at the lower half of the electrolyte storage tank; and a stirrer is arranged in the electrolyte storage tank. When the device is in use, the electrolyte in which the concentration of Cu<2+> is 70-95 g/L and the concentration of H2SO4 is 90-120 g/L is added into the electrolyte storage tank, CaCO3 is added into the electrolyte, uniform stirring is performed, then the circulating pump is started up, and the concentration of CaCO3 in the electrolyte is 12-28 g/L.
Description
Technical field
The invention belongs to electrolytic copper foil production technical field, be specifically related to a kind of device and the technique that reduce plumbum ion concentration in electrolytic copper foil electrolytic solution.
Background technology
In recent years, along with policy favourable and the industry development trend of new forms of energy aspect, create the wide market space to the new-energy automobile development of high-precision end lithium cell electrolytic copper foil.At present, due to the restriction of the smelting technology level of electrolytic copper material, and solution preparation, production process accumulation the performance of lead ion on electrolytic copper foil produce certain impact.Meanwhile, the electrochemical equilibrium problem of the galvanic deposit form of copper, requirement will keep the impurity such as the lead ion of appropriateness to a certain extent, just can produce high performance electrolytic copper foil.Therefore, appropriateness reduces the plumbum ion concentration in electrolytic solution, is a lot of manufacturers problems faced.This problem has important function and significance for defects such as the perpendicular rib, pin hole and the burrs that solve in electrolytic copper foil production process.
Summary of the invention
The object of this invention is to provide a kind of technique is simple, easy to operate, effect reduces plumbum ion concentration in electrolytic copper foil electrolytic solution preferably device and technique.
For achieving the above object, the technical solution used in the present invention is, a kind of device reducing plumbum ion concentration in electrolytic copper foil electrolytic solution, comprises electrolytic solution storage tank, strainer, recycle pump, electrolytic solution drain pipe and electrolytic solution liquid returning tube, strainer and recycle pump series connection; One end of electrolytic solution drain pipe is connected with strainer, and the other end extend into electrolytic solution sump interior and is positioned at the first half of electrolytic solution storage tank; One end of electrolytic solution liquid returning tube is connected with recycle pump, and the other end extend into electrolytic solution sump interior and is positioned at the Lower Half of electrolytic solution storage tank; Agitator is provided with in described electrolytic solution storage tank.
Reduce a technique for plumbum ion concentration in electrolytic copper foil electrolytic solution, comprise the following steps: in electrolytic solution storage tank, add electrolytic solution, Cu in electrolytic solution
2+concentration 70g/L-95g/L, H
2sO
4concentration 90g/L-120g/L; CaCO is added in electrolytic solution
3and stir, then ON cycle pump; Wherein CaCO
3the quality added and the volume ratio of electrolytic solution are 12 ~ 28g/L.
The beneficial effect that the present invention produces passes through Ca
2+with SO
4 2-generate CaSO
4deposition, and then absorption Pb
2+, filtering deposition by crossing, effectively reducing Pb
2+concentration, to the solution of the performance deficiency problem in current high-precision electrolytic copper foil production process and the lifting important in inhibiting of internal performance.Adopt recycle pump by electrolytic solution reflux cycle in the present invention, can CaSO be improved
4deposition absorption Pb
2+effect, adopt the mode that electrolytic solution drain pipe extend into the first half of electrolytic solution storage tank, electrolytic solution liquid returning tube extend into the Lower Half of electrolytic solution storage tank, the solid-liquid in electrolytic solution storage tank can be made to be mixed to get more even.Meanwhile, along with the development of society, a large amount of undressed heavy metal wastewater thereby directly enters natural water body, causes huge harm, and wherein the pollution incident of heavy metal lead is particularly outstanding, and the present invention has again the very large value of environmental protection and social effect.
Accompanying drawing explanation
Fig. 1 is the apparatus structure schematic diagram for reducing plumbum ion concentration in electrolytic copper foil electrolytic solution of the present invention.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of device reducing plumbum ion concentration in electrolytic copper foil electrolytic solution, comprises electrolytic solution storage tank 1, strainer 2, recycle pump 3, electrolytic solution drain pipe 4 and electrolytic solution liquid returning tube 5, and strainer 2 and recycle pump 3 are connected; One end of electrolytic solution drain pipe 4 is connected with strainer 2, and the other end extend into electrolytic solution storage tank 1 inside and is positioned at the first half of electrolytic solution storage tank 1; One end of electrolytic solution liquid returning tube 5 is connected with recycle pump 3, and the other end extend into electrolytic solution storage tank 1 inside and is positioned at the Lower Half of electrolytic solution storage tank 1; Agitator 6 is provided with in described electrolytic solution storage tank 1.
Reduce a technique for plumbum ion concentration in electrolytic copper foil electrolytic solution, the volume of the electrolytic solution in electrolytic solution storage tank 1 is 100L, the middle Cu of electrolytic solution
2+concentration 70g/L, H
2sO
4concentration 105g/L, records the Pb of electrolytic solution in electrolytic solution storage tank 1
2+initial concentration is 8.546mg/L; By the CaCO of 12g
3to add in electrolytic solution storage tank 1 and turn on agitator, stir after 5 minutes, record Pb in electrolytic solution storage tank 1 electrolyte inside
2+concentration be 5.396mg/L; Then ON cycle pump 3, opens 1h, 2h, 3h time point at recycle pump and samples Pb in 20mL measurement electrolytic solution storage tank 1 electrolyte inside respectively
2+concentration, the Pb recorded
2+concentration be respectively 5.022 mg/L, 4.168 mg/L, 3.832 mg/L.
Adopt embodiment 1 device and technique, effectively can reduce Pb
2+concentration; Further, along with the prolongation of time, Pb
2+concentration reduces gradually.By this test, after 3h opened by recycle pump, Pb
2+concentration reduces 4.714 mg/L.
Embodiment 2
Reduce a device for plumbum ion concentration in electrolytic copper foil electrolytic solution, it is identical with the device of embodiment 1.
Reduce a technique for plumbum ion concentration in electrolytic copper foil electrolytic solution, the volume of the electrolytic solution in electrolytic solution storage tank 1 is 100L, the middle Cu of electrolytic solution
2+concentration 85g/L, H
2sO
4concentration 90g/L, records Pb in electrolytic solution storage tank 1 electrolyte inside
2+initial concentration is 9.180mg/L; By the CaCO of 21g
3to add in electrolytic solution storage tank 1 and turn on agitator, stir after 5 minutes, record Pb in electrolytic solution storage tank 1 electrolyte inside
2+concentration be 6.138mg/L; Then ON cycle pump 3, opens 1h, 2h, 3h time point at recycle pump and samples 20mL respectively and to measure in electrolytic solution storage tank 1 Pb in electrolyte inside
2+concentration, the Pb recorded
2+concentration be respectively 6.366 mg/L, 4.482 mg/L, 4.002 mg/L.
Adopt embodiment 2 device and technique, effectively can reduce Pb
2+concentration; Further, along with the prolongation of time, Pb
2+concentration reduces gradually, by this test, after 3h opened by recycle pump, and Pb
2+concentration reduces 5.178 mg/L.
Embodiment 3
Reduce a device for plumbum ion concentration in electrolytic copper foil electrolytic solution, it is identical with the device of embodiment 1.
Reduce a technique for plumbum ion concentration in electrolytic copper foil electrolytic solution, the volume of the electrolytic solution in electrolytic solution storage tank 1 is 100L, the middle Cu of electrolytic solution
2+concentration 95g/L, H
2sO
4concentration 120g/L, records Pb in the electrolytic solution in electrolytic solution storage tank 1
2+initial concentration is 7.195mg/L; By the CaCO of 28g
3to add in electrolytic solution storage tank 1 and turn on agitator, stir after 5 minutes, record Pb in the electrolytic solution in electrolytic solution storage tank 1
2+concentration be 5.645mg/L; Then ON cycle pump 3, Pb in the electrolytic solution that recycle pump unlatching 1h, 2h, 3h time point samples in 20mL measurement electrolytic solution storage tank 1 respectively
2+concentration, the Pb recorded
2+concentration be respectively 4.833 mg/L, 3.998 mg/L, 2.528 mg/L.
Adopt embodiment 3 device and technique, effectively can reduce Pb
2+concentration; Further, along with the prolongation of time, Pb
2+concentration reduces successively, by this test, after 3h opened by recycle pump, and Pb
2+concentration reduces 4.667 mg/L.
As can be seen from the above embodiments, apparatus of the present invention and technique is adopted effectively can to reduce Pb
2+concentration; Further, along with the prolongation of time, Pb
2+concentration reduces gradually.In addition, due to easy handling of the present invention, to industrialization, there is very large using value and reference significance, make lead ion effectively be deposited as solid matter simultaneously, be convenient to filtering and impurity removing, there is again good environment protection significance.
Claims (2)
1. reduce a device for plumbum ion concentration in electrolytic copper foil electrolytic solution, it is characterized in that, comprise electrolytic solution storage tank, strainer, recycle pump, electrolytic solution drain pipe and electrolytic solution liquid returning tube, strainer and recycle pump series connection; One end of electrolytic solution drain pipe is connected with strainer, and the other end extend into electrolytic solution sump interior and is positioned at the first half of electrolytic solution storage tank; One end of electrolytic solution liquid returning tube is connected with recycle pump, and the other end extend into electrolytic solution sump interior and is positioned at the Lower Half of electrolytic solution storage tank; Agitator is provided with in described electrolytic solution storage tank.
2. utilize device described in claim 1 to reduce a technique for plumbum ion concentration in electrolytic copper foil electrolytic solution, it is characterized in that, comprise the following steps: in electrolytic solution storage tank, add electrolytic solution, Cu in electrolytic solution
2+concentration 70g/L-95g/L, H
2sO
4concentration 90g/L-120g/L; CaCO is added in electrolytic solution
3and stir, then ON cycle pump; Wherein CaCO
3the quality added and the volume ratio of electrolytic solution are 12 ~ 28g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510408840.6A CN105002550A (en) | 2015-07-14 | 2015-07-14 | Device and process for reducing concentration of lead ions in electrolyte of electrolytic copper foil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510408840.6A CN105002550A (en) | 2015-07-14 | 2015-07-14 | Device and process for reducing concentration of lead ions in electrolyte of electrolytic copper foil |
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| CN105002550A true CN105002550A (en) | 2015-10-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180062180A1 (en) * | 2016-08-23 | 2018-03-01 | Ls Mtron Ltd. | Electrolytic copper foil, electrode comprising the same, secondary battery comprising the same, and method for manufacturing the same |
| CN109402678A (en) * | 2018-12-07 | 2019-03-01 | 常州大学 | The minimizing technology of lead ion in electrolytic copper foil electrolyte |
Citations (5)
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| CN1276442A (en) * | 1999-06-08 | 2000-12-13 | 三井金属鉱业株式会社 | Electrodeposit copper foil and its mfg method, copper coated laminate and PC board |
| CN101177789A (en) * | 2007-07-25 | 2008-05-14 | 徐建中 | Device for processing foreign ion in chromium plating liquid |
| CN101245486A (en) * | 2008-03-17 | 2008-08-20 | 沈阳师范大学 | Method for removing aging copper foil plating solution detrimental impurities |
| CN104073866A (en) * | 2014-07-15 | 2014-10-01 | 辽宁石化职业技术学院 | Method for purifying nick plating electrolyte |
| CN104213183A (en) * | 2013-05-30 | 2014-12-17 | 宝钢工程技术集团有限公司 | Acidic electrotinning liquid lead ion processing method |
-
2015
- 2015-07-14 CN CN201510408840.6A patent/CN105002550A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1276442A (en) * | 1999-06-08 | 2000-12-13 | 三井金属鉱业株式会社 | Electrodeposit copper foil and its mfg method, copper coated laminate and PC board |
| CN101177789A (en) * | 2007-07-25 | 2008-05-14 | 徐建中 | Device for processing foreign ion in chromium plating liquid |
| CN101245486A (en) * | 2008-03-17 | 2008-08-20 | 沈阳师范大学 | Method for removing aging copper foil plating solution detrimental impurities |
| CN104213183A (en) * | 2013-05-30 | 2014-12-17 | 宝钢工程技术集团有限公司 | Acidic electrotinning liquid lead ion processing method |
| CN104073866A (en) * | 2014-07-15 | 2014-10-01 | 辽宁石化职业技术学院 | Method for purifying nick plating electrolyte |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180062180A1 (en) * | 2016-08-23 | 2018-03-01 | Ls Mtron Ltd. | Electrolytic copper foil, electrode comprising the same, secondary battery comprising the same, and method for manufacturing the same |
| TWI659557B (en) * | 2016-08-23 | 2019-05-11 | 南韓商Ｋｃｆ科技有限公司 | Electrolytic copper foil, electrode comprising the same, secondary battery comprising the same, and method for manufacturing the same |
| US10644320B2 (en) * | 2016-08-23 | 2020-05-05 | Kcf Technologies Co., Ltd. | Electrolytic copper foil, electrode comprising the same, secondary battery comprising the same, and method for manufacturing the same |
| CN109402678A (en) * | 2018-12-07 | 2019-03-01 | 常州大学 | The minimizing technology of lead ion in electrolytic copper foil electrolyte |
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Application publication date: 20151028 |