EFFECT OF MIXING METHODS PRIOR THE DECOMPOSITION PROCESS ON THE DECOMPOSED FERRONICKEL SLAG

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-12-13 DOI:10.36547/ams.29.4.1925

Wahyu Mayangsari, Agus Budi Prasetyo, Eni Febriana, Ahmad Maksum, Rudi Subagja, F Firdiyono, Johny Wahyuadi Soedarsono

{"title":"EFFECT OF MIXING METHODS PRIOR THE DECOMPOSITION PROCESS ON THE DECOMPOSED FERRONICKEL SLAG","authors":"Wahyu Mayangsari, Agus Budi Prasetyo, Eni Febriana, Ahmad Maksum, Rudi Subagja, F Firdiyono, Johny Wahyuadi Soedarsono","doi":"10.36547/ams.29.4.1925","DOIUrl":null,"url":null,"abstract":"Ferronickel slag is a by-product that was obtained from ferronickel production and contains Si and Mg as the main elements. Decomposition process using alkali could decrease energy consumption to process ferronickel slag by decreasing its melting point. The mixing methods prior to the decomposition process could significantly affect interaction between reactants over the process, therefore it is essential to study. The aim of this study is to determine the effect of mixing methods of ferronickel slag and NaOH prior decomposition process on the chemical composition, phase, and microstructure of decomposed ferronickel slag. Two different mixing methods, physical mixing, and impregnation, followed by roasting process at 350 ℃ for 60 minutes were performed, characterized, and analyzed. Thermodynamic analysis was calculated and shows having a good agreement with the characterization results which formation of sodium silicate, magnesium hydroxide and iron oxide were identified. Distribution of product layer of RI can be determined, while spotty decomposition was clearly identified. The effectiveness of impregnation over physical mixing was investigated.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.36547/ams.29.4.1925","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Ferronickel slag is a by-product that was obtained from ferronickel production and contains Si and Mg as the main elements. Decomposition process using alkali could decrease energy consumption to process ferronickel slag by decreasing its melting point. The mixing methods prior to the decomposition process could significantly affect interaction between reactants over the process, therefore it is essential to study. The aim of this study is to determine the effect of mixing methods of ferronickel slag and NaOH prior decomposition process on the chemical composition, phase, and microstructure of decomposed ferronickel slag. Two different mixing methods, physical mixing, and impregnation, followed by roasting process at 350 ℃ for 60 minutes were performed, characterized, and analyzed. Thermodynamic analysis was calculated and shows having a good agreement with the characterization results which formation of sodium silicate, magnesium hydroxide and iron oxide were identified. Distribution of product layer of RI can be determined, while spotty decomposition was clearly identified. The effectiveness of impregnation over physical mixing was investigated.

查看原文本刊更多论文

分解过程前的混合方法对分解镍铁渣的影响

镍铁渣是镍铁生产过程中产生的一种副产品，主要元素是硅和镁。使用碱进行分解可以降低镍铁渣的熔点，从而减少处理镍铁渣的能耗。分解过程之前的混合方法会极大地影响反应物在整个过程中的相互作用，因此有必要进行研究。本研究旨在确定分解过程前镍铁渣和 NaOH 的混合方法对分解后镍铁渣的化学成分、物相和微观结构的影响。对两种不同的混合方法（物理混合和浸渍）进行了表征和分析，然后在 350 ℃ 下焙烧 60 分钟。计算得出的热力学分析结果与表征结果十分吻合，确定了硅酸钠、氢氧化镁和氧化铁的形成。可以确定 RI 产物层的分布情况，同时还清楚地发现了点状分解现象。浸渍比物理混合更有效。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.