Fundamental research on recovering metals from hot-dip Zn-Al-Mg dross by supergravity separation

被引：4

作者：

Chu, Ren-sheng ^{[1
]}

Wang, Zhe ^{[1
]}

Deng, Xiao-xuan ^{[2
]}

Sun, Ning-jie ^{[1
]}

Xu, Cheng-liang ^{[2
]}

Guo, Zhan-cheng ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China

[2] Shougang Grp Co Ltd, Res Inst Technol, Beijing 100043, Peoples R China

来源：

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2023年 / 30卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Zn-Al-Mg alloy; Supergravity; Recovery; Hot-dip dross; Separation; CAO-TIO2-SIO2-AL2O3-MGO MELT; PEROVSKITE PHASE; ALUMINUM; ZINC; BEHAVIOR; REMOVAL; IRON;

D O I：

10.1007/s42243-023-00989-3

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The dross generated in the hot-dip Zn-Al-Mg coating process is a valuable co-product, since it contains high quantities of recyclable alloy. A new method to recover Zn-Al-Mg alloy from the industrial Zn-Al-Mg dross was proposed using supergravity separation. The separation efficiency was analyzed as a function of gravity coefficient (G), separation time, and separation temperature. The separation of Zn-Al-Mg alloy from the dross can be achieved at G > 100. The alloy content in the dross decreased gradually with an increase in the gravity coefficient, the separation time, and the separation temperature. The alloy ratio in the enriched dross decreased almost linearly as the gravity coefficient increased, and the recovery of Zn-Al-Mg alloy from the dross exceeded 78%; these results were consistent with the results of the FactSage software calculation. The purified alloy can be in-situ used in the hot-dip Zn-Al-Mg bath for production. The feasibility of supergravity separation as a promising process for efficiently recovering Zn-Al-Mg alloy from Zn-Al-Mg dross was thus demonstrated.

引用

页码：1324 / 1333

页数：10

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