Gypsum formation in the CaO-FeOx-Cu2O slags at copper saturation

Katsunori Yamaguchi; Shinichi Sato; Fumito Tanaka

Gypsum formation in the CaO-FeO_x-Cu₂O slags at copper saturation

Katsunori Yamaguchi^*, Shinichi Sato, Fumito Tanaka

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Continuous converting of copper matte using calcium ferrite slag of the CaO-FeO_x-Cu2O system is an attractive technology for copper converting. This slag sometimes tends to separate out gypsum under a high oxygen potential required to produce blister copper. Experiments have been carried out to determine the precipitation of CaSO₄ in the CaO-FeO _x-Cu2O slag with equilibrating with molten copper under the SO ₂ partial pressures of 0.2, 0.4, 0.6 and 1.0 atm at temperature range from 1473 to 1573K. The results have revealed that CaSO₄ tends to precipitate from slag when the temperature lowers, the CaO content increases, the SO² pressure increases, or blister copper is oxidized excessively.

Original language	English
Title of host publication	The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III
Pages	531-540
Number of pages	10
Publication status	Published - 2009 Dec 1
Externally published	Yes
Event	3rd International Conference on Processing Materials for Properties 2008, PMP III - Bangkok, Thailand Duration: 2008 Dec 7 → 2008 Dec 10

Publication series

Name	The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III
Volume	1

Conference

Conference	3rd International Conference on Processing Materials for Properties 2008, PMP III
Country/Territory	Thailand
City	Bangkok
Period	08/12/7 → 08/12/10

Keywords

Calcium ferrite slag
Continuous converting process
Gypsum separation

ASJC Scopus subject areas

Materials Science(all)

Cite this

Yamaguchi, K., Sato, S., & Tanaka, F. (2009). Gypsum formation in the CaO-FeO_x-Cu₂O slags at copper saturation. In The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III (pp. 531-540). (The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III; Vol. 1).

Gypsum formation in the CaO-FeO_x-Cu₂O slags at copper saturation. / Yamaguchi, Katsunori; Sato, Shinichi; Tanaka, Fumito.
The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III. 2009. p. 531-540 (The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Yamaguchi, K, Sato, S & Tanaka, F 2009, Gypsum formation in the CaO-FeO_x-Cu₂O slags at copper saturation. in The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III. The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III, vol. 1, pp. 531-540, 3rd International Conference on Processing Materials for Properties 2008, PMP III, Bangkok, Thailand, 08/12/7.

Yamaguchi K, Sato S, Tanaka F. Gypsum formation in the CaO-FeO_x-Cu₂O slags at copper saturation. In The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III. 2009. p. 531-540. (The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III).

Yamaguchi, Katsunori ; Sato, Shinichi ; Tanaka, Fumito. / Gypsum formation in the CaO-FeO_x-Cu₂O slags at copper saturation. The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III. 2009. pp. 531-540 (The Minerals, Metals and Materials Society - 3rd International Conference on Processing Materials for Properties 2008, PMP III).

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