Ring formation in semi-pilot rotary kiln during salt-roasting of vanadium-bearing titaniferous magnetite concentrate

IF 4.9 2区工程技术 Q1 ENGINEERING, CHEMICAL

Minerals Engineering Pub Date : 2025-05-20 DOI:10.1016/j.mineng.2025.109429

Jungho Heo , Hyunsik Park , Youngjae Kim , Dongju Shin

引用次数: 0

Abstract

The ring formation phenomena in a semi-pilot rotary kiln during the Na₂CO₃ salt-roasting process of vanadium-bearing titaniferous magnetite (VTM) concentrate was investigated. Ring-shaped particle agglomeration attributed to the sticking behavior of the VTM–Na₂CO₃ blended particles was observed during the salt-roasting process with 15 wt% Na₂CO₃ at 1323 K (1050℃). This observation is explained by the changes in the thermophysical properties of the blends in conjunction with the pseudo-binary phase diagrams of the VTM concentrate and Na₂CO₃.

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含钒钛磁铁矿精矿半先导回转窑盐焙烧过程中环的形成

研究了含钒钛磁铁矿（VTM）精矿在半导向回转窑Na2CO3盐焙烧过程中的环状现象。在1323 K（1050℃）、15wt % Na2CO3的盐焙烧过程中，观察到VTM-Na2CO3混合颗粒的黏附行为导致了环状颗粒团聚。这一观察结果可以用共混物热物理性质的变化以及VTM精矿和Na2CO3的伪二元相图来解释。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Minerals Engineering 工程技术-工程：化工

CiteScore

8.70

自引率

18.80%

发文量

519

审稿时长

81 days

期刊介绍： The purpose of the journal is to provide for the rapid publication of topical papers featuring the latest developments in the allied fields of mineral processing and extractive metallurgy. Its wide ranging coverage of research and practical (operating) topics includes physical separation methods, such as comminution, flotation concentration and dewatering, chemical methods such as bio-, hydro-, and electro-metallurgy, analytical techniques, process control, simulation and instrumentation, and mineralogical aspects of processing. Environmental issues, particularly those pertaining to sustainable development, will also be strongly covered.