The kinetics of dissolution of copper and iron in aqueous cupric ammine solutions

Satoshi Uchida; Ichiro Takemura; Masanori Tokuda; K. Osseo-Asare

doi:10.2355/isijinternational.36.522

The kinetics of dissolution of copper and iron in aqueous cupric ammine solutions

Satoshi Uchida, Ichiro Takemura, Masanori Tokuda, K. Osseo-Asare

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The dissolution rate of metallic copper plate in aqueous cupric ammine solutions was studied at 0.05-1.0 mol/ CuSO₄ concentration, 0-3000 rpm rotation speed and temperatures between 10-90°C. The dissolution rate was mainly controlled by chemical reaction at the temperature below 30°C, and by diffusion of cupric complex at temperatures higher than 40°C. It was found that the dissolution rate of copper increases with an increase in temperature and rotation speed, while a maximum rate was observed for increasing Cu(II) concentration. The effect of different anion showed significant results on dissolution rate of copper and iron, and carbonate ion was found to prevent the corrosion of iron. The selective dissolution of copper from iron scrap was suggested.

Original language	English (US)
Pages (from-to)	522-527
Number of pages	6
Journal	ISIJ International
Volume	36
Issue number	5
DOIs	https://doi.org/10.2355/isijinternational.36.522
State	Published - 1996

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.2355/isijinternational.36.522

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title = "The kinetics of dissolution of copper and iron in aqueous cupric ammine solutions",

abstract = "The dissolution rate of metallic copper plate in aqueous cupric ammine solutions was studied at 0.05-1.0 mol/ CuSO4 concentration, 0-3000 rpm rotation speed and temperatures between 10-90°C. The dissolution rate was mainly controlled by chemical reaction at the temperature below 30°C, and by diffusion of cupric complex at temperatures higher than 40°C. It was found that the dissolution rate of copper increases with an increase in temperature and rotation speed, while a maximum rate was observed for increasing Cu(II) concentration. The effect of different anion showed significant results on dissolution rate of copper and iron, and carbonate ion was found to prevent the corrosion of iron. The selective dissolution of copper from iron scrap was suggested.",

author = "Satoshi Uchida and Ichiro Takemura and Masanori Tokuda and K. Osseo-Asare",

year = "1996",

doi = "10.2355/isijinternational.36.522",

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T1 - The kinetics of dissolution of copper and iron in aqueous cupric ammine solutions

AU - Uchida, Satoshi

AU - Takemura, Ichiro

AU - Tokuda, Masanori

AU - Osseo-Asare, K.

PY - 1996

Y1 - 1996

N2 - The dissolution rate of metallic copper plate in aqueous cupric ammine solutions was studied at 0.05-1.0 mol/ CuSO4 concentration, 0-3000 rpm rotation speed and temperatures between 10-90°C. The dissolution rate was mainly controlled by chemical reaction at the temperature below 30°C, and by diffusion of cupric complex at temperatures higher than 40°C. It was found that the dissolution rate of copper increases with an increase in temperature and rotation speed, while a maximum rate was observed for increasing Cu(II) concentration. The effect of different anion showed significant results on dissolution rate of copper and iron, and carbonate ion was found to prevent the corrosion of iron. The selective dissolution of copper from iron scrap was suggested.

AB - The dissolution rate of metallic copper plate in aqueous cupric ammine solutions was studied at 0.05-1.0 mol/ CuSO4 concentration, 0-3000 rpm rotation speed and temperatures between 10-90°C. The dissolution rate was mainly controlled by chemical reaction at the temperature below 30°C, and by diffusion of cupric complex at temperatures higher than 40°C. It was found that the dissolution rate of copper increases with an increase in temperature and rotation speed, while a maximum rate was observed for increasing Cu(II) concentration. The effect of different anion showed significant results on dissolution rate of copper and iron, and carbonate ion was found to prevent the corrosion of iron. The selective dissolution of copper from iron scrap was suggested.

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The kinetics of dissolution of copper and iron in aqueous cupric ammine solutions

Abstract

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