红土镍矿高效制备镍铁合金的半工业试验：悬浮焙烧预还原电炉熔炼工艺

IF 5.5 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-04-27 DOI:10.1016/j.jtice.2025.106164

Mingxing Wang , Qinglong Fan , Zhe Bai , Shuai Yuan , Yanjun Li , Yuexin Han

{"title":"红土镍矿高效制备镍铁合金的半工业试验：悬浮焙烧预还原电炉熔炼工艺","authors":"Mingxing Wang , Qinglong Fan , Zhe Bai , Shuai Yuan , Yanjun Li , Yuexin Han","doi":"10.1016/j.jtice.2025.106164","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>The rotary kiln-electric furnace (RKEF) smelting process is the primary method for producing ferronickel from laterite nickel ore. However, the temperature of the pre-reduced product is relatively low, and the degree of reduction is insufficient.</div></div><div><h3>Method</h3><div>This study proposes an innovative suspension roasting pre-reduction electric furnace smelting (SRPEF) process and conducts semi-industrial trials using laterite nickel ore.</div></div><div><h3>Significant findings</h3><div>The results indicate that under a pre-reduction temperature of 850 °C, a fluidizing air volume of 13 m<sup>3</sup>/h, a coal blending ratio of 14 %, and a feed rate of 80 kg/h, the roasted material achieved a ferronickel alloy with a nickel grade of 14.28 % and an iron grade of 79.89 % after entering the electric furnace. The pre-reduction products exhibited a high degree of reduction, with some metallization, which helps shorten the reduction time in the electric furnace. The equipment maintained continuous and stable operation for 48 h. Product analysis revealed the phase transformations and migration behavior of nickel and iron elements during the SRPEF process, offering a novel and efficient approach for utilizing laterite nickel ore.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"173 ","pages":"Article 106164"},"PeriodicalIF":5.5000,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Semi-industrial experiment on efficient preparation of nickel-iron alloy from laterite nickel ore: a suspension roasting pre-reduction electric furnace melting (SRPEF) process\",\"authors\":\"Mingxing Wang , Qinglong Fan , Zhe Bai , Shuai Yuan , Yanjun Li , Yuexin Han\",\"doi\":\"10.1016/j.jtice.2025.106164\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Background</h3><div>The rotary kiln-electric furnace (RKEF) smelting process is the primary method for producing ferronickel from laterite nickel ore. However, the temperature of the pre-reduced product is relatively low, and the degree of reduction is insufficient.</div></div><div><h3>Method</h3><div>This study proposes an innovative suspension roasting pre-reduction electric furnace smelting (SRPEF) process and conducts semi-industrial trials using laterite nickel ore.</div></div><div><h3>Significant findings</h3><div>The results indicate that under a pre-reduction temperature of 850 °C, a fluidizing air volume of 13 m<sup>3</sup>/h, a coal blending ratio of 14 %, and a feed rate of 80 kg/h, the roasted material achieved a ferronickel alloy with a nickel grade of 14.28 % and an iron grade of 79.89 % after entering the electric furnace. The pre-reduction products exhibited a high degree of reduction, with some metallization, which helps shorten the reduction time in the electric furnace. The equipment maintained continuous and stable operation for 48 h. Product analysis revealed the phase transformations and migration behavior of nickel and iron elements during the SRPEF process, offering a novel and efficient approach for utilizing laterite nickel ore.</div></div>\",\"PeriodicalId\":381,\"journal\":{\"name\":\"Journal of the Taiwan Institute of Chemical Engineers\",\"volume\":\"173 \",\"pages\":\"Article 106164\"},\"PeriodicalIF\":5.5000,\"publicationDate\":\"2025-04-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the Taiwan Institute of Chemical Engineers\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1876107025002172\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Taiwan Institute of Chemical Engineers","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1876107025002172","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

摘要

回转窑-电炉（RKEF）冶炼工艺是红土镍矿生产镍铁的主要方法，但预还原产物温度较低，还原程度不足。方法提出了一种创新的悬浮焙烧预还原电炉熔炼工艺，并以红土镍矿为原料进行了半工业试验。研究结果表明：在预还原温度850℃、流化风量13 m3/h、配煤比14%、给料量80 kg/h的条件下，经焙烧的材料进入电炉后，获得了镍品位为14.28%、铁品位为79.89%的铁镍合金。预还原产物还原程度高，有一定程度的金属化，有利于缩短电炉还原时间。产品分析揭示了SRPEF过程中镍和铁元素的相变和迁移行为，为红土镍矿的高效利用提供了一条新的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Semi-industrial experiment on efficient preparation of nickel-iron alloy from laterite nickel ore: a suspension roasting pre-reduction electric furnace melting (SRPEF) process

查看原文本刊更多论文

Semi-industrial experiment on efficient preparation of nickel-iron alloy from laterite nickel ore: a suspension roasting pre-reduction electric furnace melting (SRPEF) process

Background

The rotary kiln-electric furnace (RKEF) smelting process is the primary method for producing ferronickel from laterite nickel ore. However, the temperature of the pre-reduced product is relatively low, and the degree of reduction is insufficient.

Method

This study proposes an innovative suspension roasting pre-reduction electric furnace smelting (SRPEF) process and conducts semi-industrial trials using laterite nickel ore.

Significant findings

The results indicate that under a pre-reduction temperature of 850 °C, a fluidizing air volume of 13 m³/h, a coal blending ratio of 14 %, and a feed rate of 80 kg/h, the roasted material achieved a ferronickel alloy with a nickel grade of 14.28 % and an iron grade of 79.89 % after entering the electric furnace. The pre-reduction products exhibited a high degree of reduction, with some metallization, which helps shorten the reduction time in the electric furnace. The equipment maintained continuous and stable operation for 48 h. Product analysis revealed the phase transformations and migration behavior of nickel and iron elements during the SRPEF process, offering a novel and efficient approach for utilizing laterite nickel ore.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Journal of the Taiwan Institute of Chemical Engineers 工程技术-工程：化工

CiteScore

9.10

自引率

14.00%

发文量

362

审稿时长

35 days

期刊介绍： Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.