钛工业固废制备氧化铁红及其在陶瓷黑色料中的应用

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (12): 4532-4544.

钛工业固废制备氧化铁红及其在陶瓷黑色料中的应用

段宁¹, 彭绍鑫¹, 陆成龙^2,3, 张银凤², 张帆¹

1.武汉科技大学资源与环境工程学院, 武汉 430081;
2.湖北理工学院矿区环境污染控制与修复湖北省重点实验室, 黄石 435003;
3.湖北理工学院先进材料制造与固废资源化协同技术湖北省工程研究中心, 黄石 435003

收稿日期:2024-07-28 修订日期:2024-09-10 出版日期:2024-12-15 发布日期:2024-12-19
通信作者: 陆成龙,副教授。E-mail:cjwust@126.com
作者简介:段宁(1976—),女,博士,副教授。主要从事环保新材料的研究。E-mail:dn828@163.com
基金资助:
湖北省重点实验室开放基金(2021XZ103);湖北省技术创新计划重点研发专项(2023BCB142);湖北理工学院校级一般科研项目(23xjz01Y)

Preparation of Iron Oxide Red from Titanium Industrial Solid Waste and Its Application in Ceramic Black Pigments

DUAN Ning¹, PENG Shaoxin¹, LU Chenglong^2,3, ZHANG Yinfeng², ZHANG Fan¹

1. School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China;
2. Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation, Hubei Polytechnic University, Huangshi 435003, China;
3. Hubei Engineering Research Center for Collaborative Technology of Advanced Material Manufacturing and Solid Waste Recycling, Hubei Polytechnic University, Huangshi 435003, China

Received:2024-07-28 Revised:2024-09-10 Published:2024-12-15 Online:2024-12-19

摘要/Abstract

摘要： 钛工业固废中的富铁尾泥因常年堆积对环境造成了严重污染,为实现富铁尾泥无害化、资源化处理,本研究通过酸浸-除杂-氧化-煅烧工艺路径,利用其中铁资源生产的氧化铁红作为铁源,制备铁铬尖晶石并将其应用在黑色陶瓷。考察了初始Fe²⁺浓度、反应物摩尔比及氧化温度对氧化铁黄晶种的影响,以此为基础,探究了不同煅烧温度对氧化铁红、氧化铁红形成铁铬尖晶石及黑色陶瓷发色的影响。结果表明:由富铁尾泥酸浸提纯后得到氯化亚铁溶液,在Fe²⁺浓度为0.4 mol/L、反应物摩尔比为2.2 ∶1、氧化温度为35 ℃的条件下,所得的氧化铁黄晶种在750 ℃煅烧温度下制备出纯度为98.875%、平均粒径为2.973 μm、圆棒状、结晶度高的氧化铁红。以此为原料,在1 280 ℃煅烧制备得到的铁铬尖晶石在黑色陶瓷色板发黑效果最好,色度值L^*为37.35,与标样相比仅相差0.57。

关键词: 四氯化钛, 工业固废, 氧化铁红, 铁铬尖晶石, 黑色陶瓷色料, 空气氧化法

Abstract: The accumulation of iron-rich tailings, a solid waste from the titanium industry, poses significant environmental pollution risks. To address this and convert the tailings into valuable resources, this study employed an acid leaching-purification-oxidation-calcination process. This process utilized the iron content in the tailings to produce iron oxide red, which is then used as an iron source to synthesize iron-chromium spinel for application in black ceramics. This paper investigated the effects of initial Fe²⁺ concentration, reactant molar ratio, and oxidizing temperature on the formation of iron oxide yellow crystal seeds. Building on this, the study explored how different calcination temperatures influence the properties of iron oxide red, its conversion into iron-chromium spinel, and its impact on the coloration of black ceramics. The results show that under the conditions of 0.4 mol/L Fe²⁺ concentration, a reactant molar ratio of 2.2 ∶1, and an oxidation temperature of 35 ℃, the iron oxide yellow crystal seeds obtained from acid-leached purified ferrous chloride solution are calcined at 750 ℃. This produced red iron oxide has a purity of 98.875%, an average particle size of 2.973 μm, and a high degree of crystallinity in a rod-like shape. Using this red iron oxide as a precursor, the iron-chromium spinel formed by sintering at 1 280 ℃ exhibits the best blackening effect in black ceramic color plates, with a L^* value of 37.35, differing by only 0.57 from the standard sample.

Key words: titanium tetrachloride, industrial solid waste, iron oxide red, iron chromium spinel, black ceramic pigment, air oxidation process

中图分类号:

TQ624

段宁, 彭绍鑫, 陆成龙, 张银凤, 张帆. 钛工业固废制备氧化铁红及其在陶瓷黑色料中的应用[J]. 硅酸盐通报, 2024, 43(12): 4532-4544.

DUAN Ning, PENG Shaoxin, LU Chenglong, ZHANG Yinfeng, ZHANG Fan. Preparation of Iron Oxide Red from Titanium Industrial Solid Waste and Its Application in Ceramic Black Pigments[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(12): 4532-4544.

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