CN113564638A - Recyclable and recyclable etching liquid medicine process - Google Patents
Recyclable and recyclable etching liquid medicine process Download PDFInfo
- Publication number
- CN113564638A CN113564638A CN202110776722.6A CN202110776722A CN113564638A CN 113564638 A CN113564638 A CN 113564638A CN 202110776722 A CN202110776722 A CN 202110776722A CN 113564638 A CN113564638 A CN 113564638A
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- Prior art keywords
- liquid
- recyclable
- etching
- generated
- recycling
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- 238000005530 etching Methods 0.000 title claims abstract description 42
- 239000007788 liquid Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000003814 drug Substances 0.000 title claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052802 copper Inorganic materials 0.000 claims abstract description 25
- 239000010949 copper Substances 0.000 claims abstract description 25
- 238000004064 recycling Methods 0.000 claims abstract description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 12
- 239000005708 Sodium hypochlorite Substances 0.000 claims abstract description 12
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002699 waste material Substances 0.000 claims abstract description 10
- 239000002351 wastewater Substances 0.000 claims abstract description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000460 chlorine Substances 0.000 claims abstract description 4
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 4
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 4
- 230000002378 acidificating effect Effects 0.000 abstract description 3
- 229940079593 drug Drugs 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910001431 copper ion Inorganic materials 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
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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
- 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
-
- 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
-
- 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
- C25B1/50—Processes
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention relates to the technical field of acidic etching solutions, in particular to a recyclable and recyclable process of an etching solution, which comprises the following steps: electrolyzing the etching liquid for the first time to obtain high-content copper and low-content copper, directly selling the high-content copper, and recycling the low-content copper again; chlorine is generated in the electrolytic process of the etching liquid medicine, and sodium hydroxide is added into the generated waste liquid after the electrolysis is finished to generate sodium hypochlorite; recycling and selling the liquid of the sodium hypochlorite generated in the step 2; the liquid of the sodium hypochlorite generated in the step 2 can be treated by waste water, the invention not only can recycle the low-concentration acid etching liquid, but also can recycle other liquid medicines for other utilization, thereby achieving the purpose of recycling the etching liquid medicines.
Description
Technical Field
The invention relates to the technical field of acid etching liquid, in particular to a recyclable and recyclable process of etching liquid medicine.
Background
The etching solution is a raw material for engraving the copper plate painting. In the manufacturing process of the printed circuit board, the recycling and regeneration of the acidic copper chloride etching solution always troubles the enterprises of the printed circuit board, the non-renewable acidic copper chloride etching solution contains about 100 to 130 grams of copper per liter, and the copper content of the waste etching solution generated in every month in Guangdong province is as high as thousands of tons, so that the recycling of the metal copper and the recycling and regeneration of the waste etching solution inevitably have great economic benefit and environmental protection value. The etching process part belongs to a direct process of circuit board copper consumption, the part with the copper content of more than 60% in the substrate is etched, the copper ion state formed after etching is in waste water, the waste water in a common treatment mode is sent to a unit with hazardous waste treatment quality to be treated outside, or an etching cyclic regeneration system device is installed to recover the copper ions into electrolytic copper for sale, and the two modes can not play a good role in cyclic regeneration and utilization, so that the recovery and reutilization rate of etching liquid medicine is low, and the problem of environmental pollution is solved.
Disclosure of Invention
In view of this, the present application provides a process for recycling etching solution, which solves the problems of recycling etching solution, reducing metal ions brought out by the etching solution, recycling the etching solution waste gas and the etching solution waste gas for multiple times, and reducing environmental pollution.
In order to solve the technical problems, the technical scheme provided by the invention is a recyclable and recyclable etching liquid medicine process, which comprises the following steps:
1) electrolyzing the etching liquid for the first time to obtain high-content copper and low-content copper, directly selling the high-content copper, and recycling the low-content copper again;
2) chlorine is generated in the electrolytic process of the etching liquid medicine, and sodium hydroxide is added into the generated waste liquid after the electrolysis is finished to generate sodium hypochlorite;
3) recycling and selling the liquid of the sodium hypochlorite generated in the step 2;
4) and (3) treating the liquid of the sodium hypochlorite generated in the step (2) by waste water.
Compared with the prior art, the detailed description of the application is as follows:
the process ensures that the production cost is reduced, simultaneously compensates that the etching solution can be recycled again and can obtain new chemical substances after other chemical liquid medicines are added, the new substances can be used for treating the waste water and can be recycled again, the utilization rate of the waste gas etching solution is fully improved, the conversion of the etching solution is realized, and the waste water can be treated and recycled after the conversion.
The process can realize the recovery of copper, can also recycle the low specific gravity copper liquid, can change waste liquid into valuables by adding other liquids, can recycle and sell the waste liquid and treat waste water, can further reduce environmental pollution and improve the utilization rate of the etching liquid, and advocates the recycling and selling of the etching liquid again according to the stability of the invention.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to specific embodiments.
A recyclable and recyclable etching solution process comprises the following steps:
1) electrolyzing the etching liquid for the first time to obtain high-content copper and low-content copper, directly selling the high-content copper, and recycling the low-content copper again;
2) chlorine is generated in the electrolytic process of the etching liquid medicine, and sodium hydroxide is added into the generated waste liquid after the electrolysis is finished to generate sodium hypochlorite;
3) recycling and selling the liquid of the sodium hypochlorite generated in the step 2;
4) and (3) treating the liquid of the sodium hypochlorite generated in the step (2) by waste water.
The process can recycle the etching solution, can reduce the metal ions brought out by the waste etching solution, can recycle the etching solution and the waste etching solution for many times, and reduces the environmental pollution.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (1)
1. The recyclable and recyclable etching solution process is characterized by comprising the following steps:
1) electrolyzing the etching liquid for the first time to obtain high-content copper and low-content copper, directly selling the high-content copper, and recycling the low-content copper again;
2) chlorine is generated in the electrolytic process of the etching liquid medicine, and sodium hydroxide is added into the generated waste liquid after the electrolysis is finished to generate sodium hypochlorite;
3) recycling and selling the liquid of the sodium hypochlorite generated in the step 2;
4) and (3) treating the liquid of the sodium hypochlorite generated in the step (2) by waste water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110776722.6A CN113564638A (en) | 2021-07-12 | 2021-07-12 | Recyclable and recyclable etching liquid medicine process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110776722.6A CN113564638A (en) | 2021-07-12 | 2021-07-12 | Recyclable and recyclable etching liquid medicine process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113564638A true CN113564638A (en) | 2021-10-29 |
Family
ID=78164137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110776722.6A Pending CN113564638A (en) | 2021-07-12 | 2021-07-12 | Recyclable and recyclable etching liquid medicine process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113564638A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4051001A (en) * | 1974-08-26 | 1977-09-27 | Hitachi, Ltd. | Process for regenerating etching solution |
| CN105177583A (en) * | 2015-09-09 | 2015-12-23 | 成都虹华环保科技股份有限公司 | Method and system for circulating and regenerating zero-emission waste acidic etching solutions |
| CN204982052U (en) * | 2015-09-09 | 2016-01-20 | 成都虹华环保科技股份有限公司 | Zero release acid etching waste liquid recycle and regeneration system |
| CN106498401A (en) * | 2017-01-06 | 2017-03-15 | 深圳市新锐思环保科技有限公司 | A kind of recoverying and utilizing method of acidic etching waste liquid and recovery and processing system |
| CN109023373A (en) * | 2018-06-27 | 2018-12-18 | 江苏净拓环保科技有限公司 | System for chlorine treatment in acidity etching liquid recycling copper recovery system |
| CN109161895A (en) * | 2018-08-27 | 2019-01-08 | 安徽绿洲危险废物综合利用有限公司 | Acid copper chloride etching liquid copper reclaiming system and reclaiming method |
| CN109943850A (en) * | 2019-04-19 | 2019-06-28 | 惠州市臻鼎环保科技有限公司 | Improve the system and method for acidic etching liquid regeneration rate |
| CN112458463A (en) * | 2020-11-09 | 2021-03-09 | 江苏净拓环保科技有限公司 | Acid etching solution recycling system and method |
-
2021
- 2021-07-12 CN CN202110776722.6A patent/CN113564638A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4051001A (en) * | 1974-08-26 | 1977-09-27 | Hitachi, Ltd. | Process for regenerating etching solution |
| CN105177583A (en) * | 2015-09-09 | 2015-12-23 | 成都虹华环保科技股份有限公司 | Method and system for circulating and regenerating zero-emission waste acidic etching solutions |
| CN204982052U (en) * | 2015-09-09 | 2016-01-20 | 成都虹华环保科技股份有限公司 | Zero release acid etching waste liquid recycle and regeneration system |
| CN106498401A (en) * | 2017-01-06 | 2017-03-15 | 深圳市新锐思环保科技有限公司 | A kind of recoverying and utilizing method of acidic etching waste liquid and recovery and processing system |
| CN109023373A (en) * | 2018-06-27 | 2018-12-18 | 江苏净拓环保科技有限公司 | System for chlorine treatment in acidity etching liquid recycling copper recovery system |
| CN109161895A (en) * | 2018-08-27 | 2019-01-08 | 安徽绿洲危险废物综合利用有限公司 | Acid copper chloride etching liquid copper reclaiming system and reclaiming method |
| CN109943850A (en) * | 2019-04-19 | 2019-06-28 | 惠州市臻鼎环保科技有限公司 | Improve the system and method for acidic etching liquid regeneration rate |
| CN112458463A (en) * | 2020-11-09 | 2021-03-09 | 江苏净拓环保科技有限公司 | Acid etching solution recycling system and method |
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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: 20211029 |