CN218115658U - Noble metal ion exchanger - Google Patents
Noble metal ion exchanger Download PDFInfo
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- CN218115658U CN218115658U CN202222786951.9U CN202222786951U CN218115658U CN 218115658 U CN218115658 U CN 218115658U CN 202222786951 U CN202222786951 U CN 202222786951U CN 218115658 U CN218115658 U CN 218115658U
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Abstract
The utility model relates to a noble metal ion exchanger. The method is characterized in that: an anion electrolytic membrane (6) is arranged between the anode chamber (1) and the cathode chamber (2), and the anode (4) is electrically connected with a noble metal block (7); the anode chamber (1) is filled with a cyanide solution (8), the noble metal block (7) is immersed in the cyanide solution (8), and the cathode chamber (2) is filled with an alkali solution (9). The utility model discloses can last electrolysis chemical combination and generate and have cyanogen noble metal salt, for example: the equipment is communicated with the electroplating bath solution to form circular electrolysis, so that noble metal ions consumed in the electroplating solution can be continuously and automatically supplemented, the concentration of the noble metal ions in the electroplating solution reaches the required optimal process range, the problems that cyanide noble metal salt is easily poisoned and has greater personal safety hidden danger when being manually added into the electroplating solution are solved, and the quality stability of the electroplating product is powerfully guaranteed.
Description
Technical Field
The utility model relates to a noble metal ion compensation arrangement in plating solution, concretely relates to noble metal ion switch.
Background
Electroplating is a process of plating a thin layer of other metals or alloys on the surface of a part by utilizing the principle of electrolysis, and the plating layer is attached to the surface of the part to play the roles of preventing corrosion, improving wear resistance, conductivity, beautifying appearance and the like. In recent years, precious metal electroplating is widely applied to the electrical and electronic industry, the precious metal electroplating plays a key role in the performance of electronic components such as printed circuit boards, chip pins, lead frames and the like, and electrode materials of chips, lead coatings of integrated circuit boards, LED light-emitting chips and the like also need to be subjected to electroplating process treatment through precious metal electroplating materials such as gold, platinum, silver and the like; the gold plating and silver plating are common, and the common electroplating solution (bath solution) for gold plating and silver plating is gold potassium cyanide and silver potassium cyanide, commonly called "gold salt" and "silver salt". At present, the electroplating solution is prepared by adding cyanide noble metal salt and potassium cyanide after complexing according to a certain proportion into a bath solution, and in the electroplating process, along with the continuous consumption of noble metal ions, the anode is insufficient to supplement the bath solution noble metal salt by electrolysis, so the concentration of the noble metal salt in the electroplating solution is gradually reduced, and the too low concentration of the noble metal salt in the electroplating solution influences the electroplating speed and the quality of an electroplated layer, therefore, the cyanide noble metal salt needs to be frequently added manually to keep the concentration of the noble metal ions in the electroplating solution within a certain range so as to ensure that the production is operated according to a normal electroplating process. Because the cyanide precious metal salt is a highly toxic chemical and has extremely strong toxicity, when the cyanide precious metal salt is manually added into the electroplating solution, poisoning is easily caused if the operation and prevention are improper, and great personal safety hidden dangers exist.
SUMMERY OF THE UTILITY MODEL
Aims to improve the cyanide precious metal electroplating and solve the problems that cyanide precious metal salt is easy to be poisoned and has larger potential personal safety hazard when being manually added into the electroplating solution. The utility model provides a noble metal ion exchanger, this noble metal ion exchanger can continue to electrolyze out noble metal ion, and with electroplating liquid groove intercommunication, can carry out continuous automatic compensation to the noble metal ion of consumption in the plating solution, make the noble metal ion concentration in the electroplating liquid groove reach the optimum scope, can obtain high-quality electroplating product, and the staff need not frequently contact the virulent cyaniding noble metal salt, has stopped personal potential safety hazard.
The technical scheme of the utility model is that: a noble metal ion exchanger comprises an anode chamber, a cathode chamber and a direct current electrolysis power supply, wherein an anode electrically connected with the positive electrode of the direct current electrolysis power supply is arranged in the anode chamber, a cathode electrically connected with the negative electrode of the direct current electrolysis power supply is arranged in the cathode chamber, an anion electrolysis membrane is arranged between the anode chamber and the cathode chamber, the anode is made of a titanium alloy material, and the anode is electrically connected with a noble metal block; the anode chamber is filled with cyanide solution, the noble metal block is immersed in the cyanide solution, the cathode chamber is filled with alkali solution, and the side wall of the anode chamber is provided with a cyanide conveying pipe communicated with an electroplating solution groove; a storage tank for containing alkali solution is arranged below the cathode chamber, a cathode chamber alkali solution input pipe and an alkali solution return pipe are arranged between the cathode chamber and the storage tank, a circulating pump communicated with the cathode chamber alkali solution input pipe is arranged in the storage tank, the circulating pump can convey the alkali solution in the storage tank into the cathode chamber through the cathode chamber alkali solution input pipe, and the alkali solution in the cathode chamber can flow back into the storage tank through the alkali solution return pipe when reaching a certain height.
The anode is cage-shaped and a noble metal block is placed in the anode.
And a liquid level meter is arranged on the outer wall of the storage tank.
The noble metal block is gold or silver.
And an anode chamber cyanide input pipe is arranged on the anode chamber.
The cyanide solution is potassium cyanide solution.
The alkali solution is potassium hydroxide solution.
The utility model discloses following beneficial effect has: owing to take above-mentioned technical scheme, the during operation direct current electrolysis power circular telegram, anode chamber and electroplating bath liquid intercommunication, the electrolysis speed of the indoor solid noble metal of size control anode of regulating current, the utility model discloses can last the electrolytic combination and generate cyanide noble metal salt, for example: the equipment is communicated with the electroplating bath solution to form circular electrolysis, so that noble metal ions consumed in the electroplating solution can be continuously and automatically supplemented, the concentration of the noble metal ions in the electroplating solution reaches the required optimal process range, powerful guarantee is provided for the stability of the quality of an electroplating product, and workers do not need to frequently contact with virulent cyanided noble metal salts, so that personal safety hazards are avoided.
Drawings
Fig. 1 is a structural sectional view of the present invention.
Fig. 2 is a right side view of fig. 1.
In the figure, 1-anode chamber, 2-cathode chamber, 3-direct current electrolysis power supply, 4-anode, 5-cathode, 6-anion electrolytic membrane, 7-noble metal block, 8-cyanide solution, 9-alkali solution, 10-cyanide conveying pipe, 11-storage tank, 12-cathode chamber alkali solution input pipe, 13-alkali solution return pipe, 14-circulating pump, 15-liquid level gauge and 16-anode chamber cyanide input pipe.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 and fig. 2, a noble metal ion exchanger includes an anode chamber 1, a cathode chamber 2 and a dc electrolysis power supply 3, an anode 4 electrically connected to the positive electrode of the dc electrolysis power supply 3 is disposed in the anode chamber 1, a cathode 5 electrically connected to the negative electrode of the dc electrolysis power supply 3 is disposed in the cathode chamber 2, an anionic electrolytic membrane 6 is disposed between the anode chamber 1 and the cathode chamber 2, the anionic electrolytic membrane 6 is capable of blocking noble metal cations to prevent elemental noble metals from being distinct at the cathode, the anode 4 is a titanium alloy material, and the anode 4 is electrically connected to a noble metal block 7; a cyanide solution 8 is contained in the anode chamber 1, the noble metal block 7 is immersed in the cyanide solution 8, an alkaline solution 9 is contained in the cathode chamber 2, and a cyanide conveying pipe 10 communicated with an electroplating solution tank is arranged on the side wall of the anode chamber 1; a storage tank 11 for containing an alkali solution 9 is arranged below the cathode chamber 2, a cathode chamber alkali solution input pipe 12 and an alkali solution return pipe 13 are arranged between the cathode chamber 2 and the storage tank 11, a circulating pump 14 communicated with the cathode chamber alkali solution input pipe 12 is arranged in the storage tank 11, the circulating pump 14 can convey the alkali solution 9 in the storage tank 11 into the cathode chamber 2 through the cathode chamber alkali solution input pipe 12, and the alkali solution 9 in the cathode chamber 2 can flow back into the storage tank 11 through the alkali solution return pipe 13 to a certain height. Owing to take above-mentioned technical scheme, the during operation direct current electrolysis power supply 3 circular telegram, take place the electrolytic reaction in the anode chamber 1, noble metal piece 7 melts gradually and forms the noble metal ion in cyanide solution 8, and it has the noble metal solution of cyanogen to generate in anode chamber 1, and anode chamber 1 and electroplating liquid groove intercommunication, the electrolytic speed of solid noble metal in the size control anode chamber 1 of regulating current, anode chamber 1 and electroplating liquid groove intercommunication, the utility model discloses can last electrolytic combination and generate cyanide noble metal salt, for example: the equipment is communicated with the electroplating bath solution to form circular electrolysis, so that noble metal ions consumed in the electroplating solution can be continuously and automatically supplemented, the concentration of the noble metal ions in the electroplating solution reaches the required optimal process range, powerful guarantee is provided for the stability of the quality of an electroplating product, and workers do not need to frequently contact with virulent cyanided noble metal salts, so that personal safety hazards are avoided.
The anode 4 is cage-shaped and a noble metal block 7 is placed in the anode. The anode 4 is made of titanium alloy material and does not participate in electrolytic reaction, and the noble metal block 7 participates in electrolytic reaction and is gradually melted into the cyanide solution 8.
The outer wall of the storage tank 11 is provided with a liquid level meter 15. The amount of the alkali solution 9 stored in the holding tank 11 can be visually observed by the level gauge 15 to be replenished in time.
The noble metal block 7 is gold or silver.
An anode chamber cyanide input pipe 16 is arranged on the anode chamber 1. Cyanide can be supplied to the anode chamber 1 via the anode chamber cyanide supply 16.
The cyanide solution 8 is a potassium cyanide solution.
The alkali solution 9 is a potassium hydroxide solution.
Claims (7)
1. The utility model provides a noble metal ion exchanger, includes anode chamber (1), cathode chamber (2) and direct current electrolysis power supply (3), be equipped with in anode chamber (1) with the anodal positive electricity of direct current electrolysis power supply (3) and be connected positive pole (4), be equipped with in cathode chamber (2) with the negative pole electricity of direct current electrolysis power supply (3) and be connected negative pole (5), its characterized in that: an anion electrolytic membrane (6) is arranged between the anode chamber (1) and the cathode chamber (2), the anode (4) is made of a titanium alloy material, and the anode (4) is electrically connected with a noble metal block (7); the anode chamber (1) is filled with cyanide solution (8), the noble metal block (7) is immersed in the cyanide solution (8), the cathode chamber (2) is filled with alkali solution (9), and the side wall of the anode chamber (1) is provided with a cyanide conveying pipe (10) communicated with an electroplating liquid tank; a storage tank (11) for containing an alkali solution (9) is arranged below the cathode chamber (2), a cathode chamber alkali solution input pipe (12) and an alkali solution return pipe (13) are arranged between the cathode chamber (2) and the storage tank (11), a circulating pump (14) communicated with the cathode chamber alkali solution input pipe (12) is arranged in the storage tank (11), the circulating pump (14) can convey the alkali solution (9) in the storage tank (11) into the cathode chamber (2) through the cathode chamber alkali solution input pipe (12), and the alkali solution (9) in the cathode chamber (2) reaches a certain height and can flow back into the storage tank (11) through the alkali solution return pipe (13).
2. A noble metal ion exchanger according to claim 1, wherein: the anode (4) is cage-shaped and a noble metal block (7) is placed in the anode.
3. A noble metal ion exchanger according to claim 1 or 2, wherein: and a liquid level meter (15) is arranged on the outer wall of the storage tank (11).
4. A noble metal ion exchanger according to claim 1 or 2, wherein: the noble metal block (7) is gold or silver.
5. A noble metal ion exchanger according to claim 1 or 2, wherein: an anode chamber cyanide input pipe (16) is arranged on the anode chamber (1).
6. A noble metal ion exchanger according to claim 1 or 2, wherein: the cyanide solution (8) is a potassium cyanide solution.
7. A noble metal ion exchanger according to claim 1 or 2, wherein: the alkali solution (9) is potassium hydroxide solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222786951.9U CN218115658U (en) | 2022-10-23 | 2022-10-23 | Noble metal ion exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222786951.9U CN218115658U (en) | 2022-10-23 | 2022-10-23 | Noble metal ion exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218115658U true CN218115658U (en) | 2022-12-23 |
Family
ID=84497264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222786951.9U Active CN218115658U (en) | 2022-10-23 | 2022-10-23 | Noble metal ion exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218115658U (en) |
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2022
- 2022-10-23 CN CN202222786951.9U patent/CN218115658U/en active Active
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