CN106854766A - A kind of processing method of tin removal waste liquor - Google Patents
A kind of processing method of tin removal waste liquor Download PDFInfo
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- CN106854766A CN106854766A CN201611182674.3A CN201611182674A CN106854766A CN 106854766 A CN106854766 A CN 106854766A CN 201611182674 A CN201611182674 A CN 201611182674A CN 106854766 A CN106854766 A CN 106854766A
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- solution
- tin
- waste liquor
- removal waste
- processing method
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
- C01B21/38—Nitric acid
- C01B21/46—Purification; Separation ; Stabilisation
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/14—Electrolytic production, recovery or refining of metals by electrolysis of solutions of tin
-
- 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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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention discloses a kind of processing method of tin removal waste liquor, comprise the following steps：1) pre-process：Tin removal waste liquor is filtered, the first solution is obtained；2) the first solution is used into diffusion dialysis technology, obtains the first salpeter solution and the second solution；3) the second solution is pumped into swirl electrolysis device by filtering, copper and the 3rd solution is obtained by eddy flow electrodeposition；4) by step 3) obtained by copper reclaim, the 3rd solution is filtered, using diffusion dialysis technology, obtain the second salpeter solution and the 4th solution；5) the 4th solution is pumped into swirl electrolysis device by filtering, tin and the 5th solution is obtained by eddy flow electrodeposition；6) by step 5) obtained by tin reclaim, by the 5th solution discharge to comprehensive wastewater pond.The method can high efficiente callback nitric acid and electrolysis carry copper, tin, process is simple is easy to operate, waste liquid recyclable regenerative, with good application value.
Description
Technical field
The invention belongs to environmental technology field, more particularly to a kind of processing method of tin removal waste liquor.
Background technology
Tin removal waste liquor as being worth higher, important regenerated resources, the object as the research of most of returned enterprises, then
Global metal market plays particularly important role to raw metal.Secondary Metals Industry develops and country, area
Level of economic development relation is extremely close, and attention is using the essential condition that regenerated resources are that economy is able to sustainable development.With electricity
Son is manufacturing to flourish, and the consumption of tin is also increasing.Tin removal waste liquor tin is reclaimed, it is possible to increase the utilization rate of tin, regeneration
Recycling for resource, can not only turn waste into wealth, economize on resources, and can also reduce pollutant emission, promote environmental protection, right
In implement scientific view of development, Economic Development Mode Conversion, builds economizing type and friendly environment society is significant.
Spent solder stripper is high due to content of beary metal, and free acidity is big, is all for a long time that industry of printed circuit boards sewage is controlled
Problem in terms of reason.Solve this problem key is how effectively to remove the heavy metal in waste liquid, reduce the pollution to environment, and
Realize the regeneration of valuable resource.At present, various tin removal waste liquor treatment technologies are continuously developed and perfect, in traditional
Compared with the precipitation method, based on resource reusing many technical combinations techniques be increasingly becoming tin removal waste liquor administer in main flow.Such as
The way of distillation is combined with the precipitation method, and solvent extraction is combined with electrolysis, and diffusion dialysis-IEM-electrowinning is combined etc., although this
A little processing methods have obtained certain progress, but still have certain distance away from practical application, in addition it is also necessary to constantly improve, optimization and development,
Some handling process are more ripe, but the greatest problem for existing is of a relatively high cost for wastewater treatment.Come for some medium-sized and small enterprises
Say, capital turnover difficulty, it is difficult to there is very big input in terms of wastewater treatment.Therefore, development process effect is good and economically viable
Spent solder stripper recycle utilization and technique are mains direction of studying from now on.
The content of the invention
In view of the defect that above-mentioned prior art is present, the purpose of the present invention is to propose to a kind of processing method of tin removal waste liquor,
The method high efficiente callback nitric acid and electrolysis carry copper, tin, and process is simple is easy to operate.
The purpose of the present invention will be achieved by the following technical programs：
A kind of processing method of tin removal waste liquor, comprises the following steps：
1) pre-process：Tin removal waste liquor is filtered, the first solution is obtained；
2) the first solution is used into diffusion dialysis technology, obtains the first salpeter solution and the second solution；
3) the second solution is pumped into swirl electrolysis device by filtering, copper and the 3rd solution is obtained by eddy flow electrodeposition；
4) by step 3) obtained by copper reclaim, the 3rd solution is filtered, using diffusion dialysis technology, obtain the second nitric acid
Solution and the 4th solution；
5) the 4th solution is pumped into swirl electrolysis device by filtering, tin and the 5th solution is obtained by eddy flow electrodeposition；
6) by step 5) obtained by tin reclaim, by the 5th solution discharge to comprehensive wastewater pond.
A kind of processing method of above-mentioned tin removal waste liquor, wherein, step 2) described in salpeter solution add 65% concentrated nitric acid
Production line is returned to recycle.
A kind of processing method of above-mentioned tin removal waste liquor, wherein, step 3) described in swirl electrolysis device according to copper ion
Concentration sets current density, wherein the copper ion concentration is 40-0.5g/L, the current density is 200-600A/m2。
A kind of processing method of above-mentioned tin removal waste liquor, wherein, the step 5) in swirl electrolysis device according to tin ion
Concentration sets current density, wherein the tin ion concentration is 40-0.5g/L, the current density is 300-800A/m2。
A kind of processing method of above-mentioned tin removal waste liquor, wherein, the tin ion concentration is 40-10g/L, and the electric current is close
It is 800A/m to spend2。
A kind of processing method of above-mentioned tin removal waste liquor, wherein, the copper ion concentration is 10-2g/L, and the electric current is close
It is 500A/m to spend2。
A kind of processing method of above-mentioned tin removal waste liquor, wherein, the copper ion concentration is 2-0.5g/L, and the electric current is close
It is 300A/m to spend2。
Compared with prior art, the processing method of a kind of tin removal waste liquor that the present invention is provided, what is reached has the technical effect that：This
By using, diffusion dialysis carries out reclaiming nitric acid with cyclone electrolytic cell United Technologies to tin removal waste liquor and electrolysis carries copper, tin for invention.Its
In, the present invention is reclaimed using diffusion dialysis technology to the nitric acid in tin removal waste liquor, and the nitric acid rate of recovery can reach 80-90%,
Metal rejection can reach 90%-95%；Carry out carrying copper, Xi Chu to reclaiming the tin removal waste liquor after nitric acid using cyclone electrolytic cell technology
Reason, the method can high efficiente callback nitric acid and electrolysis carry copper, tin, process is simple is easy to operate, waste liquid recyclable regenerative, with good
Good application value.
Below just in conjunction with the embodiments, specific embodiment of the invention is described in further detail, so that technical scheme is more
Should be readily appreciated that, grasp.
Specific embodiment
Below by specific embodiment, the present invention will be described, but the invention is not limited in this.In following embodiments
The experimental technique, unless otherwise specified, is conventional method；The reagent and material, unless otherwise specified, can be from business
Approach is obtained, and example below simultaneously is not used to limit the scope of the claims of the invention, all equivalence enforcements without departing from carried out by the present invention
Or change, it is intended to be limited solely by this patent protection domain.
A kind of processing method of new tin removal waste liquor of embodiment
1) pre-process：2000kg tin removal waste liquors are first passed through into sand filter, then is 1 μ l microfiltration systems by aperture, will suspended
Thing is all removed, and obtains the first solution；
2) the first solution is carried out into nitric acid recovery by diffusion dialysis device, obtains the first salpeter solution 1800kg and second molten
Liquid, wherein, salpeter solution is added into 65% concentrated nitric acid and returns to production line recycling；
3) the second solution is pumped into swirl electrolysis device by filtering, electrolysis cycle groove passes through single cycle direct electrowinning copper,
Current density is set to 200-500A/m2, completed in same module eddy flow electrolytic deposition process point three phases, belonged to according to GOLD FROM PLATING SOLUTION
The difference of ion concentration, takes different current densities, as shown in table 1；
The cyclone electrolytic cell operational factor of table 1
| Sequence number | ||
| 1 | 40-10 | 600 |
| 2 | 10-2 | 300 |
| 3 | 2-0.5 | 200 |
4) electrodeposition until in the second solution copper ion be reduced to 0.1g/L, stop electrolysis, obtain the 3rd solution, wherein, the 3rd
Content of copper ion in solution must drop to below 0.1g/L；
5) by step 4) obtained by copper reclaim, the 3rd solution is filtered, using diffusion dialysis technology, obtain the second nitric acid
Solution and the 4th solution；Second salpeter solution kg is returned into production line to recycle；
6) the 4th solution is pumped into swirl electrolysis device by filtering, tin and the 5th solution is obtained by eddy flow electrodeposition；Electrolysis
Circulating slot is set to 300-800A/m by single cycle direct electrowinning tin, current density2, in same module eddy flow electrolytic deposition process point
Three phases are completed, and according to the difference of metal ion in solution concentration, take different current densities, as shown in table 2；
The cyclone electrolytic cell operational factor of table 2
| Sequence number | ||
| 1 | 40-10 | 800 |
| 2 | 10-2 | 500 |
| 3 | 2-0.5 | 300 |
7) by step 6) obtained by tin reclaim, by the 5th solution discharge to comprehensive wastewater pond.
The present embodiment can draw reclaim nitric acid using diffusion dialysis device, and the nitric acid rate of recovery can reach 80-90%, and metal cuts
Rate is stayed to can reach 90%-95%.
Described above has shown and described some preferred embodiments of the invention, but as previously described, it should be understood that the present invention
Be not limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and can be used for various other combinations,
Modification and environment, and can be in invention contemplated scope described herein, by above-mentioned teaching or the technology or knowledge of association area
It is modified.And the change and change that those skilled in the art are carried out do not depart from the spirit and scope of the present invention, then all should be in this hair
In the protection domain of bright appended claims.
Claims (7)
1. a kind of processing method of tin removal waste liquor, it is characterised in that comprise the following steps：
1) pre-process：Tin removal waste liquor is filtered, the first solution is obtained；
2) the first solution is used into diffusion dialysis technology, obtains the first salpeter solution and the second solution；
3) the second solution is pumped into swirl electrolysis device by filtering, copper and the 3rd solution is obtained by eddy flow electrodeposition；
4) by step 3) obtained by copper reclaim, the 3rd solution is filtered, using diffusion dialysis technology, obtain the second salpeter solution
With the 4th solution；
5) the 4th solution is pumped into swirl electrolysis device by filtering, tin and the 5th solution is obtained by eddy flow electrodeposition；
6) by step 5) obtained by tin reclaim, by the 5th solution discharge to comprehensive wastewater pond.
2. a kind of processing method of tin removal waste liquor according to claim 1, it is characterised in that step 2) described in nitric acid it is molten
Liquid adds 65% concentrated nitric acid and returns to production line recycling.
3. a kind of processing method of tin removal waste liquor according to claim 2, it is characterised in that step 3) described in eddy flow electricity
Solution device sets current density according to copper ion concentration, wherein the copper ion concentration is 40-0.5g/L, the current density is
200-600A/m2。
4. a kind of processing method of tin removal waste liquor according to claim 3, it is characterised in that the step 5) in eddy flow electricity
Solution device sets current density according to tin ion concentration, wherein the tin ion concentration is 40-0.5g/L, the current density is
300-800A/m2。
5. the processing method of a kind of tin removal waste liquor according to claim 4, it is characterised in that the tin ion concentration is
40-10g/L, the current density is 800A/m2。
6. the processing method of a kind of tin removal waste liquor according to claim 5, it is characterised in that the copper ion concentration is
10-2g/L, the current density is 500A/m2。
7. the processing method of a kind of tin removal waste liquor according to claim 6, it is characterised in that the copper ion concentration is 2-
0.5g/L, the current density is 300A/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182674.3A CN106854766A (en) | 2016-12-20 | 2016-12-20 | A kind of processing method of tin removal waste liquor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182674.3A CN106854766A (en) | 2016-12-20 | 2016-12-20 | A kind of processing method of tin removal waste liquor |
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| CN106854766A true CN106854766A (en) | 2017-06-16 |
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| CN201611182674.3A Pending CN106854766A (en) | 2016-12-20 | 2016-12-20 | A kind of processing method of tin removal waste liquor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557801A (en) * | 2017-07-21 | 2018-01-09 | 深圳市祺鑫天正环保科技有限公司 | The processing method of tin removal waste liquor |
| CN112011689A (en) * | 2019-05-30 | 2020-12-01 | 惠州Tcl环境科技有限公司 | Method for recovering substances from waste tin stripping waste liquid of nitric acid system |
| CN113046564A (en) * | 2021-03-23 | 2021-06-29 | 江苏净拓环保科技有限公司 | Waste tin stripping liquid recovery and regeneration method |
| CN114835203A (en) * | 2022-05-06 | 2022-08-02 | 新余市木林森线路板有限公司 | Method for refining and utilizing circuit board electrotinning cylinder wastewater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746847A (en) * | 2008-12-03 | 2010-06-23 | 上海轻工业研究所有限公司 | Device for recycling industrial waste acid or waste alkali by adopting automatic diffusion dialysis |
| CN103265094A (en) * | 2013-06-01 | 2013-08-28 | 山东天维膜技术有限公司 | Method for recycling nitric acid and copper from waste water generated in production of printed circuit board |
| US20160097139A1 (en) * | 2014-10-02 | 2016-04-07 | Jx Nippon Mining & Metals Corporation | Method For Manufacturing High Purity Tin, Electrowinning Apparatus For High Purity Tin And High Purity Tin |
| CN205188441U (en) * | 2015-11-26 | 2016-04-27 | 深圳市瑞世兴科技有限公司 | Tin waste liquid recovery processing device moves back |
| CN205347621U (en) * | 2016-01-22 | 2016-06-29 | 深圳市瑞世兴科技有限公司 | Move back tin waste liquor recovery tin and move back tin water recycle and regeneration system |
-
2016
- 2016-12-20 CN CN201611182674.3A patent/CN106854766A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746847A (en) * | 2008-12-03 | 2010-06-23 | 上海轻工业研究所有限公司 | Device for recycling industrial waste acid or waste alkali by adopting automatic diffusion dialysis |
| CN103265094A (en) * | 2013-06-01 | 2013-08-28 | 山东天维膜技术有限公司 | Method for recycling nitric acid and copper from waste water generated in production of printed circuit board |
| US20160097139A1 (en) * | 2014-10-02 | 2016-04-07 | Jx Nippon Mining & Metals Corporation | Method For Manufacturing High Purity Tin, Electrowinning Apparatus For High Purity Tin And High Purity Tin |
| CN205188441U (en) * | 2015-11-26 | 2016-04-27 | 深圳市瑞世兴科技有限公司 | Tin waste liquid recovery processing device moves back |
| CN205347621U (en) * | 2016-01-22 | 2016-06-29 | 深圳市瑞世兴科技有限公司 | Move back tin waste liquor recovery tin and move back tin water recycle and regeneration system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557801A (en) * | 2017-07-21 | 2018-01-09 | 深圳市祺鑫天正环保科技有限公司 | The processing method of tin removal waste liquor |
| CN112011689A (en) * | 2019-05-30 | 2020-12-01 | 惠州Tcl环境科技有限公司 | Method for recovering substances from waste tin stripping waste liquid of nitric acid system |
| CN113046564A (en) * | 2021-03-23 | 2021-06-29 | 江苏净拓环保科技有限公司 | Waste tin stripping liquid recovery and regeneration method |
| CN114835203A (en) * | 2022-05-06 | 2022-08-02 | 新余市木林森线路板有限公司 | Method for refining and utilizing circuit board electrotinning cylinder wastewater |
| CN114835203B (en) * | 2022-05-06 | 2023-05-30 | 新余市木林森线路板有限公司 | Method for refining and utilizing circuit board electrotinning cylinder wastewater |
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Application publication date: 20170616 |
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| RJ01 | Rejection of invention patent application after publication |