FIRE REFINING OF CRUDE COPPER BY FLUXES (2ND REPORT): REFINING OF CRUDE COPPER BY Na2SO4 AND CaO-Na2SO4 FLUXES.

被引：0

作者：

Sakai, Tetsuro ^{[1
]}

Nakamura, Takashi ^{[1
]}

Noguchi, Fumio ^{[1
]}

Ueda, Yasuaki ^{[1
]}

机构：

[1] Kyushu Inst of Technology, Jpn, Kyushu Inst of Technology, Jpn

来源：

Nihon Kogyokaishi | 1987年 / 103卷 / 1195期

关键词：

ARSENIC; -; Removal;

D O I：

10.2473/shigentosozai1953.103.1195_587

中图分类号：

学科分类号：

摘要：

Thermodynamic and kinetic studies on the removal of Va elements (As, Sb) from molten copper using a CaO-Na//2SO//4 flux were carried out. The distribution coefficients of As and Sb between the flux and molten copper were obtained at 1473 K. Although the values of As distribution coefficients in a CaO-Na//2SO//4 flux were smaller than those in a Na//2CO//3 flux, they were sufficiently high to consider its use as a flux for As in refining. The oxygen potential dependence of the As distribution coefficients suggested that the dissolved species of As in the flux was in the pentavalent state. The removal rates of As and Sb were measured at different temperatures and oxygen potentials.

引用

页码：587 / 592