Preparation method for improving electrical conductivity of potassium aurous cyanide

Abstract

The invention relates to the field of gold potassium cyanide conductivity, in particular to a preparation method for improving gold potassium cyanide conductivity, which comprises the following steps: S1, selecting a high-purity gold raw material and stainless steel, carrying out appearance detection, and checking whether flaws exist on the surface of the gold raw material; s2, if flaws exist, the current gold raw material is replaced, and otherwise, the next step is continued; and S3, the machined gold raw material and the machined stainless steel are put into an electrolytic bath filled with an electrolytic solution correspondingly. An electrolytic solution is injected into the electrolytic tank and the constant-temperature electrolytic tank, at the moment, electrolytic treatment is conducted in the electrolytic tank and the constant-temperature electrolytic tank in cooperation with an electrolytic rod on the surface of the bottom of a supporting base plate, and at the moment, the electrolytic solution is extracted from the interiors of limiting sleeves through a first water suction pump; an electrolytic solution on the bottommost layer of the electrolytic tank and the constant-temperature electrolytic tank is extracted, and the electrolytic solution continuously flows under the continuous flowing of the electrolytic solution.

Description

Technical Field

[0001] The present invention relates to the technical field of potassium gold cyanide conductivity, and in particular to a preparation method for improving the conductivity of potassium gold cyanide. Background Art

[0002] Gold plating has a history of more than one hundred years. At present, the commonly used gold plating processes at home and abroad are mainly divided into two categories: cyanide gold plating process and cyanide-free gold plating process. Although the cyanide gold plating process is mature, the plating solution contains highly toxic cyanide, which seriously pollutes the environment. The cyanide-free gold plating process mainly includes sulfite gold plating, which plays a decisive role in the gold plating process and the quality of gold-plated parts, has a wide range of applications, and meets the requirements of environmental protection electroplating.

[0003] A patent with the publication number CN107227469B discloses a 3D hard gold electroforming solution, its preparation method and its application. The 3D hard gold electroforming solution has the following raw material components: 18 - 22 g / l of potassium gold cyanide; 75 - 90 g / l of conductive salt; 25 - 30 g / l of buffer salt; 5 - 10 g / l of chelating agent; 2.4 - 2.6 g / l of hardening agent. The 3D hard gold electroforming solution of the present invention can produce hard gold products with high hardness, thin thickness, good throwing power and temperability, and the product yield reaches 100%; the hardness of the gold prepared with the 3D hard gold electroforming solution of the present application is not less than 150 Hv, the thickness is not more than 151 μm, the gold fineness is not less than 99.96%, and the gold consumption is small (less than 80% of the gold used in the existing electroforming solution); preparation method.

[0004] When the existing potassium gold cyanide conducts electricity, an oxide layer or other impurities will be formed inside, and these impurities will penetrate into the electrolyte with the continuous flow of the electrolyte. These impurities will affect the purity of the electrolyte and thus the conductivity of potassium gold cyanide. Moreover, with the continuous flow of the solution, the internal temperature will dissipate and change, thereby reducing the conductivity efficiency of potassium gold cyanide and being unable to keep the potassium gold cyanide solution at a constant temperature. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that when potassium gold cyanide conducts electricity in the prior art, certain impurities will be generated inside, which will affect the purity of potassium gold cyanide and thus reduce the conductivity efficiency of potassium gold cyanide.

[0006] To solve the above technical problem, the present invention provides a preparation method for improving the conductivity of potassium gold cyanide, which includes the following steps:

[0007] S1. Select high-purity gold raw materials and stainless steel, and conduct appearance inspection to check whether there are defects on the surface of the gold raw materials;

[0008] S2. If there are defects, replace the current gold raw material; otherwise, proceed to the next step.

[0009] S3. Put the processed gold raw material and stainless steel into the electrolytic cell filled with electrolytic solution respectively.

[0010] S4. At this time, energize the inside of the electrolytic cell and check whether the inside of the electrolytic cell is in an energized state. If so, observe whether there is any leakage outside the electrolytic cell. If there is, turn off the power supply for leakage detection; otherwise, proceed to the next operation.

[0011] S5. First, detect the conductivity of the electrolyte inside the electrolytic cell after energization and record the current conductivity data. Then, heat the inside of the electrolytic cell to a constant temperature, detect the conductivity of the inside of the electrolytic cell after heating, and record the current conductivity data for later data comparison.

[0012] S6. After electrolysis, filter the electrolyte.

[0013] In an embodiment of the present invention, the S1 further includes the following steps:

[0014] S11. Select high-purity gold material for the gold raw material or use the residual gold from the previous batch of electrolysis.

[0015] S12. Stamp the gold raw material into 1-mm gold sheets and punch holes in the gold sheets to increase the surface area of the gold and thus increase the electrolysis efficiency.

[0016] S13. Immerse the gold sheets in dilute nitric acid solution to remove the impurities on the surface of the gold sheets by using the dilute nitric acid solution.

[0017] S14. Put the immersed gold sheets into deionized water for cleaning and then dry the gold sheets.

[0018] In an embodiment of the present invention, the S3 further includes the following steps:

[0019] S31. The electrolytic cell includes an anode cell and a cathode cell. Put the processed gold sheets into the anode cell as the electrolytic anode and put the stainless steel into the electrolytic cell as the electrolytic cathode.

[0020] S32. Place a perfluorosulfonic acid ion exchange membrane between the anode cell and the cathode cell to separate them.

[0021] S33. Utilize the advantages of the perfluorosulfonic acid ion exchange membrane, such as strong stretchability, good conductivity and chemical properties, to increase the conductivity efficiency.

[0022] In an embodiment of the present invention, the S5 further includes the following steps:

[0023] S51. Record the conductivity data inside the unheated electrolytic cell, labeled as A1. Subsequently, use a heating device to heat the electrolytic cell, and set a threshold every 5 °C for the rising temperature. After each threshold is reached, record the conductivity data inside the electrolytic cell, with the set labels being A2, A3 - An;

[0024] S52. Compare the A1 data before heating with the conductivities of A2, A3 - An after heating to check whether the conductivity increases or decreases. If it increases, continue with the next data comparison; if it decreases, stop the current data comparison.

[0025] S53. After checking the optimal temperature data, keep the heating device at the current temperature for constant - temperature heating treatment.

[0026] In an embodiment of the present invention, step S6 further includes the following steps:

[0027] S61. After electrolysis, filter the cooled electrolyte, filter out the impurities inside the electrolyte, and perform heating and concentration treatment on the filtered electrolyte to remove excessive moisture;

[0028] S62. Perform cooling crystallization treatment on the concentrated solution, and recycle the potassium gold cyanide crystals.

[0029] In an embodiment of the present invention, the electrolytic cell includes a limit collar, an electrolytic tank and a constant - temperature electrolytic tank detachably installed on the inner side wall surface of the limit collar, a support frame fixedly installed on the outer surface of the limit collar, a circulating drainage pipe fixedly installed on the outer surface of the electrolytic tank and the constant - temperature electrolytic tank and located at the bottom edge position, and a second water pump fixedly installed at the bottom edge position on the outer side of the constant - temperature electrolytic tank.

[0030] In an embodiment of the present invention, a sealing cover is detachably installed on the inner side wall surface at the top of the electrolytic tank and the constant - temperature electrolytic tank. A support pad is detachably installed on the inner side wall surface at the top of the electrolytic tank and the constant - temperature electrolytic tank and located at the bottom edge position of the sealing cover. An electrolytic rod is fixedly installed on the bottom surface of the support pad. A sealing layer is fixedly installed on the inner side wall surface at the top of the electrolytic tank and the constant - temperature electrolytic tank and located at the bottom edge position of the support pad.

[0031] In one embodiment of the present invention, a water filter sleeve is detachably installed on the inner wall of the electrolytic tank and the constant temperature electrolytic tank and located in the middle position, a limiting sleeve is fixedly installed on the inner wall of the sealing layer and the water filter sleeve, the inner wall of the limiting sleeve is wrapped around the outer surface of the electrolytic rod, a water pump is arranged on the outer surface of the limiting sleeve and located at the top edge position of the water filter sleeve, and a drain pipe is fixedly connected to the outer surface of the water pump.

[0032] In one embodiment of the present invention, a feed pipe that is movably sleeved on the outer surfaces of the electrolytic tank and the constant temperature electrolytic tank is fixedly installed on one side surface of the water filter sleeve, a filter layer is arranged on the top inner wall surface of the water filter sleeve, and a cavity is arranged inside the water filter sleeve.

[0033] In one embodiment of the present invention, a motor disposed inside the cavity is fixedly mounted on the inner wall surface of the bottom of the water filter sleeve, a stirring blade is fixedly connected to the output end of the motor, and a heating stirring plate is fixedly connected to the outer surface of the stirring blade.

[0034] The above technical solution of the present invention has the following advantages compared with the prior art:

[0035] The preparation method for improving the conductivity of potassium gold cyanide disclosed by the present invention is to inject an electrolytic solution into the interior of an electrolytic tank and a constant-temperature electrolytic tank, and then electrolytic rods on the bottom surface of a support pad are used to perform electrolytic treatment inside the electrolytic tank and the constant-temperature electrolytic tank, and then the electrolytic solution is extracted from the interior of a pair of limiting sleeves by a water pump, so that the electrolytic solution at the bottom of the electrolytic tank and the constant-temperature electrolytic tank is extracted, and the electrolytic solution is continuously flowed by the continuous flow of the electrolytic solution, thereby maintaining the uniformity of the ion concentration in the solution, and then the electrolytic solution is fully contacted with the surface of the electrolytic rod by the tubular shape of the limiting sleeve, thereby increasing the effect of electrolysis efficiency;

[0036] The preparation method for improving the conductivity of potassium gold cyanide disclosed by the present invention comprises the following steps: when a water pump extracts the electrolyzed solution in a limiting sleeve, the solution is poured into a drain pipe, and the drain pipe is used to discharge the electrolyzed solution. At this time, the impurities in the electrolytic solution are filtered through a filter layer on the inner wall of the water filter sleeve, and the filtered electrolyte passes through the filter layer and enters the cavity. At this time, a potassium hydroxide solution is poured into the cavity through a feed pipe, and a stirring blade is rotated by a motor to fully mix the electrolytic solution and the potassium hydroxide solution, so that the electrolytic solution is kept between 2 mol / L and 3 mol / L, and the electrolytic solution can always maintain a high conductivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to make the content of the present invention easier to be clearly understood, the present invention will be further described in detail below with reference to the specific embodiments of the present invention and the accompanying drawings.

[0038] Figure 1 is a schematic flow chart of the present invention;

[0039] Figure 2 is a three-dimensional view of the limit collar in the present invention;

[0040] Figure 3 is a three-dimensional sectional view of the electrolytic tank in the present invention;

[0041] Figure 4 is a three-dimensional view of the electrolytic tank in the present invention;

[0042] Figure 5 is a three-dimensional sectional view of the limit sleeve in the present invention;

[0043] Figure 6 is a three-dimensional sectional view of a part of the electrolytic tank in the present invention;

[0044] Figure 7 is a three-dimensional sectional view of the water filtering sleeve in the present invention.

[0045] Explanation of reference numerals in the drawings of the specification: 11, limit collar; 111, support frame; 12, electrolytic tank; 121, sealing cover; 122, support backing plate; 123, electrolytic rod; 124, sealing layer; 125, limit sleeve; 126, first water pump; 127, drain pipe; 128, water filtering sleeve; a1, feed pipe; a2, filtering layer; a3, cavity; a4, motor; a5, stirring blade; a6, heating and stirring piece; 129, constant temperature electrolytic tank; 13, second water pump; 14, circulating drainage pipe. Specific embodiments

[0046] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the embodiments given are not intended to limit the present invention.

[0047] Please refer to Figure 1 , the present invention provides a preparation method for improving the electrical conductivity of potassium aurocyanide, including the following steps:

[0048] S1. Select high-purity gold raw materials and stainless steel, and conduct appearance inspection to check whether there are defects on the surface of the gold raw materials;

[0049] S2. If there are defects, replace the current gold raw materials, otherwise, continue to the next step;

[0050] S3. Put the processed gold raw materials and stainless steel into the electrolytic cell filled with electrolytic solution respectively;

[0051] S4. At this time, the inside of the electrolytic cell is energized, and it is checked whether the inside of the electrolytic cell is in an energized state. If so, it is observed whether there is any leakage outside the electrolytic cell. If there is leakage, the power supply is turned off for leakage detection. Otherwise, the next step is continued;

[0052] S5. First, the conductivity of the electrolyte inside the electrolytic cell after energization is detected, and the current conductivity data is recorded. Subsequently, the inside of the electrolytic cell is heated to a constant temperature, and the conductivity of the inside of the electrolytic cell after heating is detected, and the current conductivity data is recorded for later data comparison;

[0053] S6. After electrolysis, the electrolyte is filtered;

[0054] Further, as Figure 1 shown, S1 further includes the following steps:

[0055] S11. For the gold raw material, high-purity gold material is selected or the residual gold from the previous batch of electrolysis is used;

[0056] S12. The gold raw material is stamped into 1-mm gold sheets, and the gold sheets are punched to increase the surface area of the gold and thus increase the electrolysis efficiency;

[0057] S13. The gold sheets are immersed in dilute nitric acid solution to remove the impurities on the surface of the gold sheets by using the dilute nitric acid solution;

[0058] S14. The immersed gold sheets are put into deionized water for cleaning and then dried;

[0059] S3 further includes the following steps:

[0060] S31. The electrolytic cell includes an anode cell and a cathode cell. The processed gold sheets are put into the anode cell as the electrolysis anode, and stainless steel is put into the electrolytic cell as the electrolysis cathode;

[0061] S32. A perfluorosulfonic acid ion exchange membrane is placed between the anode cell and the cathode cell to separate them;

[0062] S33. By taking advantage of the strong stretchability, good conductivity and chemical properties of the perfluorosulfonic acid ion exchange membrane, the conductivity efficiency is increased.

[0063] S5 further includes the following steps:

[0064] S51. The conductivity of the inside of the unheated electrolytic cell is recorded with the label A1. Subsequently, the electrolytic cell is heated by a heating device, and a threshold value is set every 5 °C for the rising temperature. After each threshold value is reached, the conductivity of the inside of the electrolytic cell is recorded, and the set labels are A2, A3 - An;

[0065] S52. Compare the conductivity data of A1 before heating with that of A2, A3 - An after heating to check whether the conductivity increases or decreases. If it increases, proceed to the next data comparison; if it decreases, stop the current data comparison.

[0066] S53. After checking the optimal temperature data, keep the heating device at the current temperature for constant-temperature heating treatment.

[0067] Step S6 further includes the following steps:

[0068] S61. After the electrolysis ends, filter the electrolyte after cooling, filter out the impurities inside the electrolyte, and perform heating and concentration treatment on the filtered electrolyte to remove excessive moisture.

[0069] S62. Perform cooling crystallization treatment on the concentrated solution and recycle the potassium gold cyanide crystals.

[0070] Furthermore, as Figure 1 - Figure 7As shown in the figure, the electrolytic cell includes a limit collar 11, an electrolytic tank 12 and a constant-temperature electrolytic tank 129 detachably installed on the inner wall surface of the limit collar 11, a support frame 111 fixedly installed on the outer surface of the limit collar 11, a circulating drainage pipe 14 fixedly installed on the outer surface of the electrolytic tank 12 and the constant-temperature electrolytic tank 129 and located at the bottom edge position, a second water pump 13 fixedly installed on the outer bottom edge position of the constant-temperature electrolytic tank 129, a sealing cover 121 detachably installed on the inner wall surface of the tops of the electrolytic tank 12 and the constant-temperature electrolytic tank 129, a support backing plate 122 detachably installed on the inner wall surface of the tops of the electrolytic tank 12 and the constant-temperature electrolytic tank 129 and located at the bottom edge position of the sealing cover 121, an electrolytic rod 123 fixedly installed on the bottom surface of the support backing plate 122, a sealing layer 124 fixedly installed on the inner wall surface of the tops of the electrolytic tank 12 and the constant-temperature electrolytic tank 129 and located at the bottom edge position of the support backing plate 122, a water filtering sleeve 128 detachably installed on the inner wall surface of the electrolytic tank 12 and the constant-temperature electrolytic tank 129 and located at the middle position, a limit sleeve 125 fixedly installed on the inner wall surfaces of the sealing layer 124 and the water filtering sleeve 128, the inner wall surface of the limit sleeve 125 wrapping around the outer surface of the electrolytic rod 123, a first water pump 126 provided on the outer surface of the limit sleeve 125 and located at the top edge position of the water filtering sleeve 128, a drain pipe 127 fixedly connected to the outer surface of the first water pump 126, a feed pipe a1 fixedly installed on one side surface of the water filtering sleeve 128 and movably sleeved on the outer surface of the electrolytic tank 12 and the constant-temperature electrolytic tank 129, a filtering layer a2 provided on the inner wall surface of the top of the water filtering sleeve 128, a cavity a3 provided inside the water filtering sleeve 128, a motor a4 fixedly installed on the inner wall surface of the bottom of the water filtering sleeve 128 and provided inside the cavity a3, a stirring blade a5 fixedly connected to the output end of the motor a4, and a heating stirring piece a6 fixedly connected to the outer surface of the stirring blade a5.

[0071] The interior of the electrolytic tank 12 and the constant-temperature electrolytic tank 129 is filled with an electrolytic solution. At this time, the electrolytic rod 123 on the bottom surface of the support backing plate 122 is used to perform electrolysis treatment inside the electrolytic tank 12 and the constant-temperature electrolytic tank 129. Then, the first water pump 126 is used to extract the electrolytic solution inside the limit sleeve 125, so that the electrolytic solution at the bottom layer of the electrolytic tank 12 and the constant-temperature electrolytic tank 129 is pumped up. With the continuous flow of the electrolytic solution, the electrolytic solution keeps flowing, thereby maintaining the uniformity of the ion concentration in the solution. Moreover, due to the tubular shape of the limit sleeve 125, the electrolytic solution can fully contact the surface of the electrolytic rod 123, achieving the effect of increasing the electrolysis efficiency.

[0072] After the water pump 126 pumps out the electrolyzed solution inside the limit sleeve 125 and instills it into the inside of the drain pipe 127, the electrolyzed solution is discharged in cooperation with the drain pipe 127. At this time, the filter layer a2 on the inner side wall of the water filter sleeve 128 is used to filter the impurities in the electrolyzed solution. The filtered electrolyte will pass through the filter layer a2 and enter the inside of the cavity a3. At this time, potassium hydroxide solution is instilled into the inside of the cavity a3 through the feed pipe a1, and the motor a4 is used to rotate the stirring blades a5, so that the electrolyzed solution and the potassium hydroxide solution are fully mixed together, so that the electrolyzed solution is always maintained between 2mol / L and 3mol / L, so that the electrolyzed solution can always maintain a high conductivity effect;

[0073] While the stirring blades a5 are rotating, the heating and stirring sheet a6 on the outer surface of the stirring blades a5 is used to carry out constant temperature heating inside the solution, so that the solution is always maintained between the optimal temperatures. Then, the mixed solution is gradually dripped into the electrolysis tank 12 and the constant temperature electrolysis tank 129 through the water filter sleeve 128. When the multi-group limit sleeves 125 are at different depths in the electrolyte, the limit sleeves 125 can circulate and extract the electrolytes at different depths.

[0074] Working principle: Electrolyzed solution is instilled into the inside of the electrolysis tank 12 and the constant temperature electrolysis tank 129. At this time, the electrolysis rod 123 on the bottom surface of the support pad 122 is used to carry out electrolysis treatment inside the electrolysis tank 12 and the constant temperature electrolysis tank 129. Then, the water pump 126 pumps out the electrolyzed solution inside the limit sleeve 125, so that the electrolyzed solution at the bottom layer of the electrolysis tank 12 and the constant temperature electrolysis tank 129 is pumped up. Under the continuous flow of the electrolyzed solution, the electrolyzed solution keeps flowing, thereby maintaining the uniformity of the ion concentration in the solution. Due to the tubular shape of the limit sleeve 125, the electrolyzed solution is in full contact with the surface of the electrolysis rod 123, increasing the electrolysis efficiency;

[0075] After the water pump 126 pumps out the electrolyzed solution inside the limit sleeve 125 and instills it into the inside of the drain pipe 127, the electrolyzed solution is discharged in cooperation with the drain pipe 127. At this time, the filter layer a2 on the inner side wall of the water filter sleeve 128 is used to filter the impurities in the electrolyzed solution. The filtered electrolyte will pass through the filter layer a2 and enter the inside of the cavity a3. At this time, potassium hydroxide solution is instilled into the inside of the cavity a3 through the feed pipe a1, and the motor a4 is used to rotate the stirring blades a5, so that the electrolyzed solution and the potassium hydroxide solution are fully mixed together, so that the electrolyzed solution is always maintained between 2mol / L and 3mol / L, so that the electrolyzed solution can always maintain a high conductivity effect;

[0076] While the stirring blade a5 is rotating, the heating stirring piece a6 on the outer surface of the stirring blade a5 is used to perform constant-temperature heating inside the solution, so that the solution is always maintained within the optimal temperature range. Then, the mixed solution gradually drips into the electrolysis tank 12 and the constant-temperature electrolysis tank 129 through the water filtering sleeve 128. When the multi-group of limiting sleeves 125 are at different depths inside the electrolyte, the limiting sleeves 125 can circulate and extract the electrolyte at different depths.

[0077] Obviously, the above embodiments are merely examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. The obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A preparation method for improving the conductivity of potassium gold cyanide, characterized in that: The following steps are involved: S1. Select high-purity gold raw materials and stainless steel, conduct appearance inspection, and check whether there are defects on the surface of the gold raw materials; S2. If there is a defect, the current gold raw material is replaced; otherwise, proceed to the next step; S3, the processed gold raw material and stainless steel are respectively placed in an electrolytic tank filled with an electrolytic solution; S4, at this time, the inside of the electrolytic cell is energized to check whether the inside of the electrolytic cell is in a powered state. If so, observe whether there is leakage outside the electrolytic cell. If so, turn off the power supply to perform leakage detection. Otherwise, proceed to the next step; S5, after power is turned on, the electrolyte inside the electrolytic cell is preferentially tested for conductivity, and the current conductivity data is recorded, and then the inside of the electrolytic cell is heated at a constant temperature, and the conductivity inside the heated electrolytic cell is tested, and the current conductivity data is recorded, and data comparison is performed later; S6. After the electrolysis is completed, the electrolyte is filtered.

2. A method for preparing potassium gold cyanide having an improved electrical conductivity according to claim 1, characterized in that: The S1 further comprises the following steps: S11. Choose high-purity gold as the raw material or use residual gold from the previous batch of electrolysis; S12, punching the gold raw material into 1 mm gold sheets, and punching the gold sheets to increase the surface area of ​​the gold to increase the electrolysis efficiency; S13, immersing the gold sheet in a dilute nitric acid solution, and using the dilute nitric acid solution to clean impurities on the surface of the gold sheet; S14, placing the soaked gold sheet into deionized water to clean it and drying it.

3. A method for preparing potassium gold cyanide having an improved electrical conductivity according to claim 2, characterized in that: The S3 further comprises the following steps: S31, the electrolytic cell includes an anode cell and a cathode cell, the treated gold sheet is placed in the anode cell as an electrolytic anode, and the stainless steel is placed in the electrolytic cell as an electrolytic cathode; S32, placing a perfluorosulfonic acid ion exchange membrane between the anode tank and the cathode tank to separate them; S33. Take advantage of the strong stretchability, conductivity and good chemical properties of perfluorosulfonic acid ion exchange membrane to increase conductivity efficiency.

4. A method for preparing potassium gold cyanide having an improved electrical conductivity according to claim 1, characterized in that: The S5 further comprises the following steps: S51, recording the conductivity inside the unheated electrolytic cell, labeled A1, then using a heating device to heat the electrolytic cell, and setting a threshold for each 5°C rise in temperature, and recording the conductivity inside the electrolytic cell after each rise in a threshold, and the set labels are A2, A3--An; S52, compare the A1 data before heating with the A2 and A3--An conductivity data after heating to check whether the conductivity increases or decreases. If it increases, continue to the next data comparison; if it decreases, stop the current data comparison; S53, after checking the optimal temperature data, the heating device is kept at the current temperature to perform constant temperature heating treatment.

5. A method for preparing potassium gold cyanide having an improved electrical conductivity according to claim 1, characterized in that: The S6 further comprises the following steps: S61, after the electrolysis is completed, the cooled electrolyte is filtered, the impurities in the electrolyte are filtered, and the filtered electrolyte is heated and concentrated to remove excess water; S62, cooling and crystallizing the concentrated solution, and recovering the potassium aurous cyanide crystals.

6. A method for preparing potassium gold cyanide having an improved electrical conductivity according to claim 1, characterized in that: The electrolytic cell comprises a limiting ring (11) and an electrolytic tank (12) and a constant temperature electrolytic tank (129) detachably mounted on the inner wall surface of the limiting ring (11), a support frame (111) fixedly mounted on the outer surface of the limiting ring (11), a circulating drainage pipe (14) fixedly mounted on the outer surfaces of the electrolytic tank (12) and the constant temperature electrolytic tank (129) and located at the bottom edge position, and a second water pump (13) fixedly mounted at the outer bottom edge position of the constant temperature electrolytic tank (129).

7. A method for preparing potassium gold cyanide having an improved electrical conductivity according to claim 6, characterized in that: A sealing cover (121) is detachably mounted on the top inner wall of the electrolytic tank (12) and the constant temperature electrolytic tank (129); a supporting pad (122) is detachably mounted on the top inner wall of the electrolytic tank (12) and the constant temperature electrolytic tank (129) and located at the bottom edge of the sealing cover (121); an electrolytic rod (123) is fixedly mounted on the bottom surface of the supporting pad (122); and a sealing layer (124) is fixedly mounted on the top inner wall of the electrolytic tank (12) and the constant temperature electrolytic tank (129) and located at the bottom edge of the supporting pad (122).

8. A method for preparing potassium gold cyanide with improved conductivity according to claim 7, characterized in that: A water filter sleeve (128) is detachably installed on the inner wall of the electrolytic tank (12) and the constant temperature electrolytic tank (129) and located in the middle position; a limiting sleeve (125) is fixedly installed on the inner wall of the sealing layer (124) and the water filter sleeve (128); the inner wall of the limiting sleeve (125) wraps around the outer surface of the electrolytic rod (123); a water pump (126) is arranged on the outer surface of the limiting sleeve (125) and located at the top edge of the water filter sleeve (128); a drainage pipe (127) is fixedly connected to the outer surface of the water pump (126).

9. A method for preparing potassium gold cyanide with improved conductivity according to claim 8, characterized in that: A feed pipe (a1) is fixedly mounted on one side surface of the water filter sleeve (128) and is movably sleeved on the outer surfaces of the electrolytic tank (12) and the constant temperature electrolytic tank (129). A filter layer (a2) is arranged on the inner wall surface of the top of the water filter sleeve (128), and a cavity (a3) ​​is arranged inside the water filter sleeve (128).

10. A method for preparing potassium gold cyanide with improved conductivity according to claim 9, characterized in that: A motor (a4) disposed inside the cavity (a3) ​​is fixedly mounted on the inner wall surface of the bottom of the water filter sleeve (128), a stirring blade (a5) is fixedly connected to the output end of the motor (a4), and a heating stirring blade (a6) is fixedly connected to the outer surface of the stirring blade (a5).

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