CN106637297A - Treatment method of tin removing waste solution - Google Patents
Treatment method of tin removing waste solution Download PDFInfo
- Publication number
- CN106637297A CN106637297A CN201611182661.6A CN201611182661A CN106637297A CN 106637297 A CN106637297 A CN 106637297A CN 201611182661 A CN201611182661 A CN 201611182661A CN 106637297 A CN106637297 A CN 106637297A
- Authority
- CN
- China
- Prior art keywords
- tin
- waste liquor
- removal waste
- tin removal
- processing method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/36—Regeneration of waste pickling liquors
-
- 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
Abstract
The invention discloses a treatment method of a tin removing waste solution. The treatment method comprises the following steps: 1) electrolyzing the tin removing waste solution by adopting a membrane electrolysis method so as to obtain tin and a first waste solution; 2) returning the first waste solution back to a production line and circularly regenerating. The method disclosed by the invention can be used for efficiently recycling the tin, has the advantages of simple process, convenience for operation, renewable waste solution and has good application value.
Description
Technical field
The invention belongs to liquid waste disposal technique field, more particularly to a kind of processing method of tin removal waste liquor.
Background technology
With the fast development of China's electronics industry, a large amount of PCB enterprises are emerged in large numbers, and produced in Tui Xishi PCB enterprises useless
The maximum operation of liquid measure, often produces 1000m2Wiring board at least produces 0.75m3Tin removal waste liquor, global year produces 5 × 105m3Move back tin
Waste liquid.If so huge tin removal waste liquor amount will necessarily cause pole without arbitrarily discharge is processed to water resource and ecological environment
Big pollution.Treatment technology and method of the recent domestic to tin removal waste liquor summarized above, it is known that current various to move back tin
Liquid waste disposal technique is continuously developed and perfect, mainly based on resource recycling.Although some treatment technologies compare into
It is ripe, but due to tin removal waste liquor complicated component, with severe corrosive, cause difficult treatment, high cost, especially for some technologies
And the developing PCB medium-sized and small enterprises of shortage of funding, the process of tin removal waste liquor has been even more into the bottleneck of enterprise development.Therefore, open
It is main direction of studying from now on to send out high treating effect and economically viable tin removal waste liquor recycle utilization and technique.
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 can high efficiente callback tin, process is simple is easy to operate, waste liquid recyclable regenerative, with good using value.
The purpose of the present invention will be achieved by the following technical programs：
A kind of processing method of tin removal waste liquor, step is as follows：1) by tin removal waste liquor using diaphragm process be electrolysed, get Xi and
First waste liquid；2) the first waste liquid is returned into production line circular regeneration.
A kind of processing method of above-mentioned tin removal waste liquor, wherein, the current density of the diaphragm process is 300-600A/
m2。
A kind of processing method of above-mentioned tin removal waste liquor, wherein, the diaphragm process include anionic membrane electrolysis and
Cationic membrane electrodeposition process.
A kind of processing method of above-mentioned tin removal waste liquor, wherein, the anionic membrane electrolysis is by Sn+It is oxidized to Sn2+,
The Sn2+Concentration is more than 10g/L.
A kind of processing method of above-mentioned tin removal waste liquor, wherein, the tin removal waste liquor includes the first tin removal waste liquor and second
Tin removal waste liquor.
A kind of processing method of above-mentioned tin removal waste liquor, wherein, first tin removal waste liquor is by using the first tin stripper
Carry out moving back tin process and obtaining.
A kind of processing method of above-mentioned tin removal waste liquor, wherein, second tin removal waste liquor is by using the second tin stripper
Carry out signal bronze take off except process and obtain.
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
Invention carries out proposing tin process using negative and positive Diaphragm Electrolysis Technology to tin stripping liquid, carries the waste liquid recyclable regenerative after tin.The method can
High efficiente callback tin, process is simple is easy to operate, waste liquid recyclable regenerative, with good using value.
Below just in conjunction with the embodiments, the specific embodiment of the present 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, if no special instructions, is conventional method；The reagent and material, if no special instructions, can be from business
Approach is obtained, and example below simultaneously is not used to limit the scope of the claims of the present invention, all equivalence enforcements without departing from carried out by the present invention
Or change, in being intended to be limited solely by this patent protection domain.
Embodiment 1
A kind of processing method of tin removal waste liquor, comprises the following steps that：
1) base material is carried out using the first tin stripper moving back tin process, obtains the first tin removal waste liquor, tin is taken off except rate can reach 90-
99%；2) signal bronze is carried out using the second tin stripper taking off except processing, obtains the second tin removal waste liquor, taken off except rear bright-copper-face, nothing
Nigrescence of turning white phenomenon；3) the first tin removal waste liquor and the second tin removal waste liquor are merged, obtains tin removal waste liquor；4) by tin removal waste liquor
2000L enters anionic membrane electrolysis system, and current density is 400A/m2, by Sn+It is oxidized to Sn2+, wherein Sn2+Concentration ensures
More than 10g/L, 5) enters back into cationic membrane electro-deposition system, and parameter setting is shown in Table 1,
The cationic membrane electro-deposition system parameter of table 1
| Sequence number | Sn2+(g/L) | Current density (A/m2) |
| 1 | 60-50 | 600 |
| 2 | 50-40 | 400 |
| 3 | 40-10 | 300 |
Tin and the first waste liquid 2000L are carried through cationic membrane electrodeposition process；6) the first waste liquid is returned into production line to circulate again
It is raw.
The tin rate of recovery obtained by the present embodiment is in the range of 95-99%.
Described above illustrates and describes some preferred embodiments of the present invention, but as previously mentioned, 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 change that those skilled in the art are carried out and change be without departing from the spirit and scope of the present invention, then all should be at this
In the protection domain of bright claims.
Claims (7)
1. a kind of processing method of tin removal waste liquor, it is characterised in that step is as follows：1) by tin removal waste liquor using diaphragm process electricity
Solution, get Xi and the first waste liquid；2) the first waste liquid is returned into production line circular regeneration.
2. a kind of processing method of tin removal waste liquor according to claim 1, it is characterised in that the electricity of the diaphragm process
Current density is 300-600A/m2。
3. the processing method of a kind of tin removal waste liquor according to claim 2, it is characterised in that the diaphragm process includes
Anionic membrane electrolysis and cationic membrane electrodeposition process.
4. a kind of processing method of tin removal waste liquor according to claim 3, it is characterised in that the anionic membrane electrolysis
It is by Sn+It is oxidized to Sn2+, the Sn2+Concentration is more than 10g/L.
5. the processing method of a kind of tin removal waste liquor according to claim 4, it is characterised in that the tin removal waste liquor includes the
One tin removal waste liquor and the second tin removal waste liquor.
6. the processing method of a kind of tin removal waste liquor according to claim 5, it is characterised in that first tin removal waste liquor is
Processed and obtained by carrying out moving back tin using the first tin stripper.
7. the processing method of a kind of tin removal waste liquor according to claim 6, it is characterised in that second tin removal waste liquor is
By using the second tin stripper carry out signal bronze take off except process and obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182661.6A CN106637297A (en) | 2016-12-20 | 2016-12-20 | Treatment method of tin removing waste solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182661.6A CN106637297A (en) | 2016-12-20 | 2016-12-20 | Treatment method of tin removing waste solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106637297A true CN106637297A (en) | 2017-05-10 |
Family
ID=58833790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611182661.6A Pending CN106637297A (en) | 2016-12-20 | 2016-12-20 | Treatment method of tin removing waste solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106637297A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232030A (en) * | 2021-12-23 | 2022-03-25 | 广东鑫菱环境科技有限公司 | PCB methanesulfonic acid tin stripping waste liquid recycling method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741142A (en) * | 2014-01-10 | 2014-04-23 | 中南大学 | Method for recycling tin from waste tin-stripping solution based on tin-stripping solution of hydrochloric acid-tin salt system |
| CN104894599A (en) * | 2015-06-23 | 2015-09-09 | 成都虹华环保科技股份有限公司 | Recycling process of tin-removing waste liquid |
| CN105648472A (en) * | 2016-01-22 | 2016-06-08 | 张黎 | Recycling method and system for tin in tin stripping waste liquid and tin stripping waste liquid |
| 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 CN201611182661.6A patent/CN106637297A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741142A (en) * | 2014-01-10 | 2014-04-23 | 中南大学 | Method for recycling tin from waste tin-stripping solution based on tin-stripping solution of hydrochloric acid-tin salt system |
| CN104894599A (en) * | 2015-06-23 | 2015-09-09 | 成都虹华环保科技股份有限公司 | Recycling process of tin-removing waste liquid |
| CN105648472A (en) * | 2016-01-22 | 2016-06-08 | 张黎 | Recycling method and system for tin in tin stripping waste liquid and tin stripping waste liquid |
| 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232030A (en) * | 2021-12-23 | 2022-03-25 | 广东鑫菱环境科技有限公司 | PCB methanesulfonic acid tin stripping waste liquid recycling method and application thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |