CN112939288A - Metal etching processing waste liquid recovery device - Google Patents
Metal etching processing waste liquid recovery device Download PDFInfo
- Publication number
- CN112939288A CN112939288A CN202110365409.3A CN202110365409A CN112939288A CN 112939288 A CN112939288 A CN 112939288A CN 202110365409 A CN202110365409 A CN 202110365409A CN 112939288 A CN112939288 A CN 112939288A
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- Prior art keywords
- waste liquid
- device body
- filter layer
- metal etching
- filter
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- 239000007788 liquid Substances 0.000 title claims abstract description 108
- 239000002699 waste material Substances 0.000 title claims abstract description 74
- 238000005530 etching Methods 0.000 title claims abstract description 58
- 239000002184 metal Substances 0.000 title claims abstract description 48
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 48
- 238000011084 recovery Methods 0.000 title claims abstract description 42
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims 2
- 150000002739 metals Chemical class 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 239000000243 solution Substances 0.000 description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001124569 Lycaenidae Species 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 235000014987 copper Nutrition 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000016804 zinc Nutrition 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
- B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- 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
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- ing And Chemical Polishing (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a metal etching processing waste liquid recovery device, wherein a first filter layer and a second filter layer are sequentially arranged below a stirring shaft in a device body, one side of the device body is connected with a second recovery box through a liquid guide hose, and the liquid guide hose is communicated between the second filter layer and the inner bottom of the device body; the other side of the device body is connected with one side of the treatment box through a liquid guide pipeline, the liquid guide pipeline is communicated between the first filter layer and the second filter layer, and the other side of the treatment box is connected with the first recovery box. When the waste liquid generated by etching different metals is recovered, the waste liquid can be respectively treated by the treatment box and the recovery box at the two sides of the device, so that the device is not only convenient for people to use, but also beneficial to reutilization and discharge of the waste liquid generated by etching the metals; the multilayer filtration can avoid reducing separation efficiency due to the blockage of the liquid passing pipe structure, and the treatment efficiency of the metal etching waste liquid is improved.
Description
Technical Field
The invention relates to metal etching processing, in particular to a device for recovering waste liquid generated by metal etching processing, and belongs to the technical field of metal etching.
Background
The metal etching is also called photochemical metal etching (photochemical etching), and refers to removing a protective film of a metal etching area after exposure plate making and development, and contacting a chemical solution during metal etching to play a role in dissolving and corroding, so as to form an effect of concave-convex or hollow-out molding. The process can be used for manufacturing printing concave-convex plates such as coppers, zincs and the like at the earliest time, and also can be widely used for processing weight-reducing instrument panels, nameplates, thin workpieces and the like which are difficult to process by the traditional method; after continuous improvement and development of process equipment, the method can also be used for processing precision metal etching products of electronic thin-sheet parts in aviation, machinery and chemical industries. Especially in semiconductor manufacturing, metal etching is an indispensable technique.
In the metal etching process, a large amount of metal etching solution is required in the chemical etching process, and waste etching solution liquid is also generated in the process, and the waste etching solution liquid contains a large amount of harmful substances, so that the waste etching solution liquid needs to be recycled. However, the types of metals processed by the metal etching solution are different, the waste liquid processing flows to be carried out are also different, and the existing etching solution waste liquid recovery processing equipment has a single function, cannot efficiently and timely process the etching solution waste liquid, and cannot meet the requirements of people. Therefore, there is a need for an improved apparatus for recovering and treating metal etching waste liquid to improve the usability of the apparatus.
Disclosure of Invention
The invention aims to solve the problems and provides a metal etching processing waste liquid recovery device, which is convenient for timely recovery and efficient treatment of the etching waste liquid and improves the equipment performance.
The technical solution of the invention is as follows: metal etching processes waste liquid recovery unit, including the device body, its characteristics are: the left side of the top of the device body is provided with a first liquid inlet, the right side of the top of the device body is provided with a second liquid inlet, the inner middle part of the device body is provided with a stirring shaft, the top end of the stirring shaft is connected with a motor through a motor shaft, a plurality of stirring blades are uniformly distributed on the stirring shaft, the inner lower part of the device body is provided with a first filter layer, the first filter layer is arranged below the stirring shaft, a second filter layer is arranged below the first filter layer, one side of the device body is connected with a second recovery box through a liquid guide hose, the liquid guide hose is communicated between the second filter layer and the inner bottom of the device body, the other side of the device body is connected with one side of a treatment box through a liquid guide pipeline, the liquid guide pipeline is communicated between the first filter layer and the second filter layer, and the other side of the treatment box is connected with the first recovery box, the bottom of the device body is provided with a material pumping pipe.
Further, the above metal etching waste liquid recovery apparatus, wherein: the first filter layer is formed by a plurality of layers of filter screens, and the filter screens are detachably and fixedly connected with the inner wall through bolts; the second filter layer is composed of a filter plate, and a plurality of filter holes are distributed in the filter plate.
Further, the above metal etching waste liquid recovery apparatus, wherein: the distance between the first filter layer and the second filter layer is smaller than the distance between the second filter layer and the inner bottom of the device body.
Further, the above metal etching waste liquid recovery apparatus, wherein: the interior bottom of handling the case is equipped with the electrolytic bath, electrolytic bath one side runs through and handles case lateral wall and plus power electric connection.
Further, the above metal etching waste liquid recovery apparatus, wherein: one side at second recovery case top is equipped with the feeding mouth, the top of feeding mouth is equipped with the material flap.
Still further, the above metal etching waste liquid recovery apparatus, wherein: and supporting seats are respectively arranged at two ends of the bottom of the device body.
Thus, by adopting the technical scheme of the invention, the waste liquid generated by metal etching is introduced into the device from the liquid inlet, when the waste liquid is stainless steel etching waste liquid, the stirring shaft is started by the motor to drive the stirring blades to stir the waste liquid, under the stirring action, the waste liquid passes through the first filter layer and the second filter layer in sequence to filter and remove impurities twice, the obtained waste liquid is introduced into the second recovery box through the liquid guide hose to be recovered, and a neutralizing agent is required to be added into the waste liquid through the feeding port to neutralize the waste liquid before the waste liquid in the second recovery box is discharged; when the waste liquid kind is copper stainless steel etching waste liquid, start the (mixing) shaft at the motor and drive stirring vane and stir the waste liquid, under the stirring effect, the waste liquid filters the back through first filter layer in proper order, and utilize the electrolytic cell to carry out the electrolytic recovery copper in leading-in treatment box of gained waste liquid through leading the liquid pipeline to it can to retrieve through first collection box with the waste liquid after the electrolytic treatment.
Compared with the prior art, the technical scheme of the invention can recycle the waste liquid generated after etching different metals, thereby facilitating the use of people; moreover, the scheme is not only favorable for recycling and discharging the metal etching waste liquid, but also can avoid the phenomenon of reducing the separation efficiency due to the blockage of the liquid passing pipe structure by arranging the multi-layer filtering, and improves the treatment efficiency of the metal etching waste liquid.
Drawings
FIG. 1 is a schematic view of the overall structure of the apparatus of the present invention;
FIG. 2 is a schematic view of the structure of the treatment tank of the present invention;
FIG. 3 is a schematic view of a second recycling bin according to the present invention.
The meaning of the reference symbols in the figures is: 1-device body, 2-first liquid inlet, 3-second liquid inlet, 4-motor, 5-stirring shaft, 6-stirring blade, 7-first filter layer, 8-second filter layer, 9-treatment box, 91-electrolytic cell, 10-first recovery box, 11-second recovery box, 111-feeding port, 12-pumping pipe, 13a, 13 b-supporting seat.
Detailed Description
The technical solutions of the present invention are further explained below with reference to the accompanying drawings so as to be more easily understood and appreciated. The parts such as the liquid guiding hose, the liquid guiding pipeline, the external power supply, the material port cover and the like are commonly known by ordinary people in the field, and no special requirement is required for the device.
As shown in fig. 1, a metal etching processing waste liquid recovery device, including device body 1, wherein the left side at device body 1 top is equipped with first inlet 2, the right side at device body 1 top is equipped with second inlet 3, the interior middle part of device body 1 is equipped with (mixing) shaft 5, the top of (mixing) shaft 5 is connected with motor 4 through the motor shaft, evenly distributed has a plurality of stirring vane 6 on the (mixing) shaft 5, the interior lower part of device body 1 is equipped with first filter layer 7, and first filter layer 7 arranges the below of (mixing) shaft 5 in, the below of first filter layer 7 is equipped with second filter layer 8, install supporting seat 13a and 13b respectively at the both ends of device body 1 bottom, can balanced support device body 1.
According to the technical scheme of the invention, one side of a device body 1 is connected with a second recovery box 11 through a liquid guide hose which is communicated between a second filter layer 8 and the inner bottom of the device body 1, when stainless steel metal etching waste liquid (because stainless steel and etching liquid almost do not have a displacement reaction, the waste liquid contains more impurities) completes impurity filtration through a first filter layer 7 and the second filter layer 8, the stainless steel metal etching waste liquid is guided into the second recovery box 11 through the liquid guide hose to be recovered, the other side of the device body 1 is connected with one side of a treatment box 9 through a liquid guide pipeline which is communicated between the first filter layer 7 and the second filter layer 8, the other side of the treatment box 9 is connected with a first recovery box 10, when metal etching waste liquid (because metal such as copper and the like have a displacement reaction with the etching liquid, the waste liquid not only needs impurity filtration, but also needs to recover copper and the like) completes impurity filtration, the starting valve is used for electrolyzing and recovering copper and the like in the treatment box 9 through the liquid guide pipeline, the electrolyzed liquid is recovered through the first recovery box 10 under the action of the pump, the pumping pipe 12 is arranged at the bottom end of the device body 1, and sediments at the bottom of the device body 1 can be treated and recovered through the pumping pipe 12.
Preferably, among the above structures: the first filter layer 7 is formed by a plurality of layers of filter screens, and the filter screens are detachably and fixedly connected with the inner wall through bolts so as to be convenient to disassemble and assemble; the second filter layer 8 is formed by a filter plate, and a plurality of filter holes are distributed on the filter plate; the distance between the first filter layer 7 and the second filter layer 8 is smaller than the distance between the second filter layer 8 and the inner bottom of the device body 1, and a deposition part at the bottom of the device body 1 is reserved.
More specifically, as shown in fig. 2, an electrolytic cell 91 (electrolytic cell 91 contains electrolyte solution, negative and positive electrodes) is arranged at the inner bottom of the treatment box 9, and one side of the electrolytic cell 91 penetrates through the side wall of the treatment box 9 and is electrically connected with an external power supply; as shown in fig. 3, a feeding port 111 is disposed on one side of the top of the second recycling bin 11, a port cover is disposed on the top end of the feeding port 111, and a neutralizing agent is added to the processed metal etching waste liquid through the feeding port 111 to enable the ph of the waste liquid to reach the standard and the waste liquid can be discharged.
In the technical scheme of the invention, the arranged bidirectional recovery structure of the treatment box 9 and the second recovery box 11 is a technical key, and the relevant parts related to the recovery structure for recovering the metal etching waste liquid are mainly shown in fig. 1, 2 and 3.
Thus, by adopting the technical scheme of the invention, the waste liquid generated by the metal etching process is introduced into the device from the liquid inlet, when the type of the waste liquid is stainless steel etching waste liquid, the stirring shaft 5 is started at the motor 4 to drive the stirring blade 6 to stir the waste liquid, under the stirring action, the waste liquid is filtered and filtered twice by the first filtering layer 7 and the second filtering layer 8 in sequence, and then the obtained waste liquid is introduced into the second recovery box 11 through the liquid guide hose to be recovered, and a neutralizing agent is required to be added through the material adding port 111 to neutralize the waste liquid before the waste liquid in the second recovery box 11 is discharged; when the waste liquid kind is copper stainless steel etching waste liquid, start (mixing) shaft 5 at motor 4 and drive stirring vane 6 and stir the waste liquid, under the stirring effect, the waste liquid filters the back through first filter layer 7 in proper order, utilizes electrolytic cell 91 to carry out the electrolysis with gained waste liquid in leading-in processing case 9 of drain pipe to retrieve copper to the waste liquid after will the electrolytic treatment can through first collection box 10 recovery.
Through the above description, it can be found that, compared with the prior art, by adopting the technical scheme of the invention, the waste liquid generated after etching different metals can be recovered and treated, thereby being convenient for people to use; moreover, the scheme is not only favorable for recycling and discharging the metal etching waste liquid, but also can avoid the phenomenon of reducing the separation efficiency due to the blockage of the liquid passing pipe structure by arranging the multi-layer filtering, and improves the treatment efficiency of the metal etching waste liquid.
The technical solutions, working processes and implementation effects of the present invention are described in detail above, and it should be noted that the description is only a typical example of the present invention, and besides, the present invention may have other various specific embodiments, and all technical solutions formed by using equivalent substitutions or equivalent changes fall within the scope of the present invention as claimed.
Claims (6)
1. Metal etching processing waste liquid recovery unit, including device body (1), its characterized in that: the device is characterized in that a first liquid inlet (2) is arranged on the left side of the top of the device body (1), a second liquid inlet (3) is arranged on the right side of the top of the device body (1), a stirring shaft (5) is arranged in the middle of the inside of the device body (1), the top end of the stirring shaft (5) is connected with a motor (4) through a motor shaft, a plurality of stirring blades (6) are uniformly distributed on the stirring shaft (5), a first filtering layer (7) is arranged on the lower portion of the inside of the device body (1), the first filtering layer (7) is arranged below the stirring shaft (5), a second filtering layer (8) is arranged below the first filtering layer (7), one side of the device body (1) is connected with a second recovery box (11) through a liquid guiding hose, the liquid guiding hose is communicated between the second filtering layer (8) and the bottom of the device body (1), the other side of the device body (1) is connected with one side of a processing box (9) through, and the liquid guide pipeline is communicated between the first filter layer (7) and the second filter layer (8), the other side of the treatment box (9) is connected with the first recovery box (10), and the bottom end of the device body (1) is provided with a material pumping pipe (12).
2. The metal etching processing waste liquid recovery apparatus according to claim 1, characterized in that: the first filter layer (7) is formed by a plurality of layers of filter screens, and the filter screens are detachably and fixedly connected with the inner wall through bolts; the second filter layer (8) is formed by a filter plate, and a plurality of filter holes are distributed in the filter plate.
3. The metal etching processing waste liquid recovery apparatus according to claim 1 or 2, characterized in that: the distance between the first filter layer (7) and the second filter layer (8) is smaller than the distance between the second filter layer (8) and the inner bottom of the device body (1).
4. The metal etching processing waste liquid recovery apparatus according to claim 1, characterized in that: the interior bottom of handling case (9) is equipped with electrolytic cell (91), electrolytic cell (91) one side is run through and is handled case (9) lateral wall and external power electric connection.
5. The metal etching processing waste liquid recovery apparatus according to claim 1, characterized in that: one side at second collection box (11) top is equipped with filler hole (111), the top of filler hole (111) is equipped with the material flap.
6. The metal etching processing waste liquid recovery apparatus according to claim 1, characterized in that: supporting seats (13 a, 13 b) are respectively installed at two ends of the bottom of the device body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110365409.3A CN112939288B (en) | 2021-04-06 | Metal etching processing waste liquid recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110365409.3A CN112939288B (en) | 2021-04-06 | Metal etching processing waste liquid recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112939288A true CN112939288A (en) | 2021-06-11 |
| CN112939288B CN112939288B (en) | 2024-07-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114657566A (en) * | 2022-05-23 | 2022-06-24 | 江油星联电子科技有限公司 | Liquid medicine regenerating unit is used in circuit board production |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001020085A (en) * | 1999-07-05 | 2001-01-23 | Yamato Denki Kogyo Kk | Treatment of etching waste liquid and device for treatment of etching waste liquid |
| CN104087942A (en) * | 2014-07-24 | 2014-10-08 | 广西新天德能源有限公司 | Etching waste liquid treatment equipment |
| CN211471556U (en) * | 2019-11-26 | 2020-09-11 | 南京鑫研新材料科技有限公司 | A recovery unit for etching waste liquid |
| CN214735020U (en) * | 2021-04-06 | 2021-11-16 | 江苏佰元鸿金属科技有限公司 | Metal etching processing waste liquid recovery device |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001020085A (en) * | 1999-07-05 | 2001-01-23 | Yamato Denki Kogyo Kk | Treatment of etching waste liquid and device for treatment of etching waste liquid |
| CN104087942A (en) * | 2014-07-24 | 2014-10-08 | 广西新天德能源有限公司 | Etching waste liquid treatment equipment |
| CN211471556U (en) * | 2019-11-26 | 2020-09-11 | 南京鑫研新材料科技有限公司 | A recovery unit for etching waste liquid |
| CN214735020U (en) * | 2021-04-06 | 2021-11-16 | 江苏佰元鸿金属科技有限公司 | Metal etching processing waste liquid recovery device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114657566A (en) * | 2022-05-23 | 2022-06-24 | 江油星联电子科技有限公司 | Liquid medicine regenerating unit is used in circuit board production |
| CN114657566B (en) * | 2022-05-23 | 2022-08-09 | 江油星联电子科技有限公司 | Liquid medicine regenerating unit is used in circuit board production |
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