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Health and safety precautions in the relining of aluminum electrolysis cells

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Abstract

The risk of accidents when handling liquid metal and bath, the potential for explosions through reactions of gases, and electrical hazards all highlight the vital importance of safety in the cathode repair and cell restart processes. With respect to hygiene, refractory materials and reaction products must be handled carefully when repairing cathodes and when welding. Personnel therefore require appropriate clothing and protective equipment. This article reviews various procedures—short circuiting a cell, digging out the spent potlining, preparing the empty steel shell, fixing the steel bars to the cathode blocks, and general relining and start-up—in the context of both safety and health.

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Pawlek, R.P. Health and safety precautions in the relining of aluminum electrolysis cells. JOM 46, 21–25 (1994). https://doi.org/10.1007/BF03220690

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Keywords

  • Welding
  • Personal Protection
  • Hydrogen Cyanide
  • Safety Data Sheet
  • Threshold Limit Value