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Conference Proceedings

The AusIMM Proceedings 1993

Conference Proceedings

The AusIMM Proceedings 1993

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Activated Basket Anodes from Nickel Powder IV Evaluation of Production Parameters for Scaling-up the LPS Process

A liquid phase sintering (LPS) process for preparing basket anodes from nickel powder has been scaled-up and the innuence of compact green density and sulphur content, as well as sintering conditions (period and syngas now.rate) on the perfonnance of anodes has been evaluated. The product anodes have been tested in an industrial electroplating tank. It is concluded that if anode residues are to be minimised, then with a sintering temperature of 960"C, compact green density needs to be as high as economically achievable (85 - 87 per cent density of solid nickel) and the sintering period approximately 40 minutes. With these constraints, if residual sulphur contents of anodes are to be kept as low as those of commercial anodes, then the sulphur content of the green compacts would need to be less than 1670 ppm. At the same time, it is also found that residual sulphur concentrations as high as 2000 ppm are beneficial to anode pcrfonnancc and not detrimental to the quality of the electroplate. The ability of the LPS process to produce marketable nickel anodes for the electroplating industry is clearly demonstrated.
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  • Activated Basket Anodes from Nickel Powder IV Evaluation of Production Parameters for Scaling-up the LPS Process
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  • Published: 1993
  • PDF Size: 0.77 Mb.
  • Unique ID: P_PROC1993_1795

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