The determination of oxidized zinc in ores and concentrator products

✍ Scribed by Barker, C. W. ;Young, R. S.

• Publisher: Wiley (John Wiley & Sons)
• Year: 1948
• Weight: 130 KB
• Volume: 67
• Category: Article
• ISSN: 0368-4075
• DOI: 10.1002/jctb.5000670206

✦ Synopsis

BARKER AND YOUNG-OXIDIZED ZINC IN ORES

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pore size. It was also noted that a white corrosion product tended to remain on the edge of the sintered specimens even after the cleaning operation. This was generally concentrated on the top half of the specimen, as it hung in the solution, and was particularly marked in the test on the coarsest grade, D, in the stagnant solution, where the residual corrosion product formed an elliptical patch on one side of the top of the specimen.

Conclusions

I. In general, the rates of corrosion of the porous bron'x ' compacts were not appreciably different from those of solid bronze of the same composition.

2. The determination of corrosion rate by measurement of the loss of weight was in good general agreement with determination of the amount of metal in solution in the corroding medium.

3. The peculiar characteristics of porous metal may give rise to large differences in corrosion rate in certain special cases, as in caustic soda, where the porous bronze was greatly superior, and in concentrated sulphuric acid, where it was inferior to solid bronze.