purchase silver online

admin1 Precious metals 2021-04-03 15:01 0

Where is the recovery of silver precious metals? Regarding the technology of silver, palladium, platinum and rhodium recovery, the permeability of palladium, platinum and rhodium ions in the anode solution into the electroplating solution. Plating solution Put the stirring rod into the plating tank to stir the plating solution, and wrap each soluble anode in an anode bag. Where is Qingyang Precious Metal Recycling Company. Covering each soluble anode with a diaphragm and placing each soluble anode in the plating tank can reduce the amount of silver, copper ions and their complexes that permeate from the cathode side to the anode side. At the same time, the diaphragm allows palladium platinum rhodium ions to penetrate from the anode side to the cathode side, so that at least a part of the amount of palladium platinum rhodium ions used to form the coating can be supplemented. The diaphragm is made of, for example, a non-ionic plastic microporous membrane. After connecting the terminal of the soluble anode and the terminal of the cathode to the power source, respectively, the anode solution is poured into it. The reason why the two soluble anodes are symmetrically arranged here is that an electric current is applied to plate the cathode of the plating object with the palladium platinum rhodium of the soluble anode and the plating metal in the plating solution. Next, the online purchase silver technology according to the second embodiment of the recycling technology is that toward one cathode, the plating object is an object that can be plated on both sides of the cathode by installing anodes on both sides of the cathode.

   As shown in the figure, this embodiment is basically the same as the second embodiment, except for the following points, the electroplating device where the cheapest place to buy silver online is described will be described. The insoluble anode surrounded by a separator replaces one of the above-mentioned two soluble anodes of the first embodiment. Electroplating current flows through both the soluble anode and the insoluble anode to prevent silver in the plating solution. Due to the contact with the insoluble anode, the current shown in the figure basically matches the equivalent current of the palladium, platinum and rhodium to be plated on the plating object. However, the electrolytic plating recovery technology of this embodiment is similar to the first one. Recycling technology. Therefore, detailed description is omitted. The separator covering the insoluble anode here may be the same as or different from the separator covering the soluble anode, as long as it can prevent silver from contacting the insoluble anode and passing current. As the insoluble anode, for example, APMEX, the Shaoguan Palladium, Platinum and Rhodium Recovery and Refinery Plant was used. A conventionally used insoluble anode made of platinized titanium, carbon, etc. Also in the second embodiment, a hydrophilic nonionic surfactant can be optionally added to the anode solution together with methanesulfonic acid. In addition, the electrolytic plating recovery technology of the third embodiment of the recovery technology will be described below with reference to the plating apparatus shown in the figure. As shown in the figure, the online purchase of silver is in the plating device shown in the figure. In this embodiment, the plating solution of the plating device of the first embodiment has a filter membrane, which includes a polyethylene non-woven fabric coated with cellulose, The circulation path of the holes is connected to a diameter of meters, preferably to meters by using a pump to pressurize the low pressure, for example, to the head pressure, so that the plating solution can pass through the filter membrane. Therefore, an impurity as a solid substance in the plating solution is, for example, water.

   The palladium oxide, platinum and rhodium oxide, copper oxide and silver oxide can be removed by filtration, thereby preventing the degradation of the solution quality. Control of electroplating solution When electroplating is performed, it is easy to control the concentrations of palladium, platinum, rhodium, silver, and copper ions in the plating solution within an appropriate range. In this case, in order to stably obtain the ideal plating film composition ratio and film performance, it is preferable to analyze the plating bath and supplement these ions in the plating bath, so that the respective ion concentrations of palladium, platinum, rhodium, copper and silver can be maintained. At the expected level. These ions can be used alone or in combination with volume analysis, optical analysis, electrical analysis, thermal analysis, and radiographic analysis. Where is Zhoukou Precious Metal Recycling Company. Spectrophotometry, gravimetric analysis, etc. are used as ion concentration analysis and recovery techniques. These ions are pre-mixed with palladium platinum rhodium, palladium platinum rhodium in copper and silver, SD gold bars and silver as primary ions at an appropriate concentration to provide the desired coating composition ratio or coating performance. However, as the amount of electroplating treatment increases, ions are consumed. Therefore, the metal ion concentration in the plating bath fluctuates. How to buy silver rods online However, by eluting from the anode and by replenishing the same amount of ions as the consumed ions by replenishing the concentrated solution of metal salt from the outside of the plating bath, the concentration of ions can be maintained at a preset level. Volume analysis includes redox titration, chelation titration, precipitation titration, etc. Optical analysis includes spectrophotometry, atomic absorption spectrometry, inductively coupled plasma atomic emission spectrometry, etc. Electrical analysis includes polarography, coulometric potential method and so on. Thermal analysis includes differential thermal analysis, differential scanning calorimetry, etc. X-ray analysis includes X-ray diffraction, X-ray fluorescence and so on. Before replenishing the ions of palladium, platinum, rhodium, silver and copper, that is, the main metal ions, to the electroplating solution, the solution bath can be analyzed by one or two or more recovery technologies selected from the aforementioned online purchase of pure silver technologies. The metal ion concentration measured in the electroplating bath and its calculated excess or deficiency, JM gold bars can be provided by externally providing metal salts in one or more forms selected from concentrated solutions and powders by eluting the corresponding ions from the anode Alternatively, when replenishing metal ions, the eluate from the anode can be combined with the eluate from the outside in one or more forms selected from concentrated solutions and powder pastes.