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What is the principle of the centrifugal electrolytic cyclone electrowinning equipment?

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  What is the principle of the centrifugal electrolytic cyclone electrowinning equipment? Introduction to centrifugal electrolytic turbulence electrowinning equipment:

  Operation process of turbulence electrowinning device: under the action of the infusion pump, the solution enters the swirl tank from the bottom of the tank, flows at a high speed in the tank body, and metal deposits are precipitated from the cathode. As inert anodes are used, gas is precipitated on the anode, and the gas is discharged at any time through the exhaust device on the tank top for centralized post-processing. The cyclone cell works with several cells as a module, and a single cyclone cell is equivalent to a pair of cathode and anode of a traditional electrolytic cell. Cathode products are taken out from the top (powder is from the bottom) regularly (generally, the cathode needs to be collected when it reaches the weight of 25 to 30 kg), and electrolysis is continued after the starting electrode is placed again.

  Principle description

  Cyclone electrolysis technology is an effective method of separating and purifying metals, and a new technology that can selectively electrolyze (electrowinning) valuable metals. It is especially suitable for the metallurgical industry to separate and purify low concentration solutions and complex solutions by selective electrolysis (electrowinning), and to strip heavy metal ions from wastewater.

  working principle

  All electrolysis technologies are based on the basic theory of electrochemistry, and cyclone electrolysis technology is no exception. The traditional electrolysis technology is to place the cathode and anode in a slow flowing or stagnant tank. Under the effect of the electric field, the anions move directionally to the anode and the cations move directionally to the cathode. By controlling certain technical conditions, the metal cations to be obtained are electrodeposited at the cathode to obtain electrolytic products.

  Cathodic reaction

  Metal ions get electrons at the cathode to form metal

  Me+(aq)+e- →Me(S)

  Anodic reaction

  The electrons obtained from the cathode need to be balanced by the loss of electrons from the anode. There are several possible reactions on the anode. * The main reaction is the oxidation of water in the solution to produce oxygen. The reactions are as follows:

  2H2O → O2(g)+4H++4e-

  When the metal concentration in the electrolyte decreases, it is difficult to reduce the metal in the cathode without other reactions. When the metal concentration is low, the chemical reaction that is easy to occur is the generation of hydrogen, as follows:

  2H+(aq)+2e- → H2(g)

  Cyclone electrolysis technology is based on the difference of theoretical precipitation potential (E ¢) of metal ions, that is, to be extracted.

  As long as the metal has a large potential difference with other metal ions in the solution system, the metal with positive potential is easy to precipitate preferentially at the cathode. The key is to eliminate the adverse factors such as concentration polarization through high-speed solution flow, which avoids the limitation of traditional electrolysis process affected by many factors (ion concentration, precipitation potential, concentration polarization, overpotential, pH value, etc.), High quality metal products can be produced through simple technical conditions.

  Shaanxi Ruikai Environmental Protection Technology Co., Ltd. is engaged in the solution design, transfer, handover, co processing, equipment leasing and other businesses of turbulent electrowinning and cyclone electrolysis. Welcome to cooperate and negotiate! Tel.: 029-68716256

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