MXPA99011598A - Anode for electrolytic refining - Google Patents

Abstract

The invention relates to an anode used in the electrolytic refining of copper, said anode (1) comprising two support parts (2), whereby the anode (1) is suspended during the electrolytic process against the electrolytic tank walls. According to the invention, in the anode support parts (2) there are formed brackets (3) for gripping the anode (1) and for supporting the anode (1) when it is being transferred from one position to another.

Description

ANODE FOR ELECTROLYTIC REFINING The present invention relates to a copper anode, soluble for electrolytic refining, anode which is immersed in a tank used in electrolytic refining and lifted from the tank, so that the fastening members provided in the load member are protected to be in contact with the walls of the tank. The cathodes and anodes that serve as electrodes in the electrolytic refining of copper are placed in an alternating manner in a tank containing the electrolytic solution. In order to advantageously perform the electrolytic refining, the electrodes are placed as close to each other as possible, and the mutual placement of the electrodes must be carried out in as precise a manner as possible, in order to avoid the short circuits. Although the anodes and cathodes are subjected to completely different operations, both before their immersion in the electrolytic tank and after they are lifted from it, it is advantageous for the operation of the load member that the load member, when placed above of the electrolytic tank, can handle both anodes and cathodes at the same time. Therefore, the loading member is advantageously provided with separate fastening members, designed for anodes and cathodes, respectively. When an anode is used that is soluble in the electrolytic solution, the anode terminals that support the anode both during charging and during the electrolytic treatment are made from the same soluble material, and therefore the anode terminals are made as short as may be possible. In this way, the anode clamping members in connection with the loads extend essentially close to the walls of the tank and to the insulated conductor rails suspended from the walls of the tank, in which case slight yet erroneous movements of the clamping member can give as a result the damage of the tanks, the conductive rails or the insulation. When copper anodes are used in the conventional manner, where the point of clamping between the terminals of the load member is located between the wall of the electrolytic tank and the plate-like part of the anode, the surface of the electrolytic solution, contained in the tank electrolytic should be essentially low with respect to the conductive rails suspended from the walls of the tank, so that the designs of the anode terminals required by the anode treatment are prevented from entering the electrolytic solution and thus interfere with the electrolytic process itself. When the surface of the electrolytic solution remains low, the investment and running costs of the electrolytic plant increase, due to an increased amount of the anode waste, among other reasons. The object of the present invention is to eliminate some of the disadvantages of the prior art and to realize an improved, more feasible soluble anode, designed for the electrolytic refining of copper, anode in which the point of attachment between the anode terminal and the anode The load member is adjusted so as to allow both the anodes and the cathodes to be charged in the electrolytic refining in an essentially simultaneous manner. The new essential features of the invention are apparent from the appended claims. In the meaning of a soluble anode for the electrolytic refining of copper, in the suspension part of the anode, which suspends the anode in the electrolytic tank during the electrolytic process, a support is formed, advantageously when the anode is melted, so that the end of the support pointing away from the anode suspension part is directed towards the central line of the anode or towards an imaginary continuation of the central line. In this way, the suspension part of an anode that is provided with a support can be completely clamped above the liquid surface of the electrolytic solution contained in the electrolytic tank, and when using a movement of the clamping member takes place essentially away from the walls of the electrolytic tank. According to the invention, the support formed in the suspension part of the anode supports the anode during transport to the electrolytic tank, during the immersion in and the lifting of the electrolytic tank, and during further transport away from the electrolytic tank. In this way, the support part suitably supports the anode only while the anode is immersing in the electrolytic tank. Because the electrodes, cathodes and anodes, used in the electrolytic refining of copper carried out in an electrolytic tank, are during the electrolytic process suspended from the walls of the electrolytic tank by means of two separate support parts that are located on the opposite sides of the centerline of the electrodes, at the anode according to the present invention, the holding support is likewise formed separately for both supporting parts, advantageously so that the supporting ends directed away from the part of support are indicated between "yes." "" "According to the invention, the support formed on the anode support part is advantageously positioned so that the end of the support directed away from the support part is located essentially at the same height as the end of the support part pointing away from the center line of the anode. Now, the support is essentially advantageously parallel with the support part along the entire length thereof. That end of the support pointing away from the part of the support can also be located at a different height, either above or below, than the end that is directed away from the center line of the anode. In this case, at least part of the support forms an acute angle with respect to the support part. The length of the support is advantageously such that sufficient support is obtained by means of the fastening member provided in the loading member in order to transfer the anode from one position to another. In addition, the supports provided in the support parts of an anode according to the invention are located such that the supports are located essentially symmetrically with respect to the central line of the anode. When a meaning of a soluble anode is employed for electrolytic refining according to the invention, where the anode support part is provided with a support for suspending the anode in conjunction with transport, it is essentially easy to handle the mixed charges of anodes and cathodes with a load member, because the clamping members provided in the load member and corresponding to the support do not need to penetrate the anodes and cathodes, where there is usually no space for the anode clamping member. In addition, an anode with support according to the invention can be clamped so that the location of the anode with respect to the clamping member can be adjusted in an essentially precise manner. Additionally, the fastening member holding the support is placed essentially away from the walls of the electrolytic tank and the insulated conductive rails provided in the walls, so that the fastening member does not hit the walls or rails, at least not due to erroneous, light movements. Advantageously, the support formed in the fastening part of the anode according to the invention of the fastening member holding the support is always placed above the electrolytic solution contained in the electrolytic tank, so that the anode treatment of the According to the invention, it does not restrict in any way a possible lifting of the surface of the electrolytic solution. By lifting the surface of the electrolytic solution, the investment and running costs of an electrolytic refining plant can be cut advantageously. In this way, for example, the amount of anode waste is reduced, despite the clamping supports, separated. Additionally, when a clamping bracket is used in the anode clamping portion according to the invention, the clamping of the anode does not need to be taken into account while defining the respective dimensions of the electrolytic tank and the cathodes and anodes which serve as electrodes . The invention is explained in more detail below, with reference to the accompanying drawing, which is a front view illustration of a preferred embodiment of the invention.

According to the drawing, in a molded copper anode 1, the support parts 2 are formed in conjunction with the molded part in order to suspend the anode during the dissolution process taking place in the electrolytic tank. Additionally, in conjunction with the molding, the support parts 2 are provided with fastening supports 3 in order to support the anode while the anode is moving by means of the fastening members (not shown) which are connected to the fastening member. charge and are known as such. In addition to this, the reference number 4 refers to the end of holding support 3 pointing away from the part, the reference number 5 refers to that end of the support part 2 pointing away from the anode.

Claims (4)

1. CLAIMS 1. An anode for the electrolytic refining of copper, the anode containing two support parts, by which the anode can be suspended during the electrolytic process against the walls of the electrolytic tank, characterized in that when the anode is melted, in the anode support parts, supports are formed to hold the anode and to support the anode when it is transferred from one position to another, so that the end of the support pointing away from the support part is located essentially at the same height as the end of the support part that points away from the anode. An anode according to claim 1, characterized in that the support is formed in such a way that the end of the support pointing away from the support part is directed towards the end of the support which is located in the second part of the anode support and far from this. An anode according to claim 1 or 2, characterized in that the support is essentially parallel to the support part along the entire length thereof. 4. An anode according to any of the appended claims, characterized in that the supports formed in the support parts are in a position essentially symmetrically with respect to the central line of the anode.