含钾砂页岩除铁提质及陶瓷应用试验研究

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (5): 1672-1678.

所属专题：陶瓷

含钾砂页岩除铁提质及陶瓷应用试验研究

何瑞明^1,2,3, 赵玉莲³, 王勇³, 史伟³, 李诚³, 李爱民³

1.山西省岩矿测试应用研究所,太原 030001;
2.国土资源部太原矿产资源监督检测中心,太原 030001;
3.山西省地质调查院,太原 030006

收稿日期:2021-01-16 修回日期:2021-02-07 出版日期:2021-05-15 发布日期:2021-06-07
作者简介:何瑞明(1989—),男,工程师。主要从事矿产资源开发及综合利用研究。E-mail:herm321@163.com
基金资助:
山西省地勘基金(2017-53)

Experimental Study on Iron Removal Purification of Potassium Bearing Sand Shale and Its Application of Ceramics

HE Ruiming^1,2,3, ZHAO Yulian³, WANG Yong³, SHI Wei³, LI Cheng³, LI Aimin³

1. Shanxi Research Institute of Rock and Mineral Testing and Application, Taiyuan 030001, China;
2. Taiyuan Mineral Resources Supervision and Testing Center of Ministry of Land and Resources, Taiyuan 030001, China;
3. Shanxi Institute of Geological Survey, Taiyuan 030006, China

Received:2021-01-16 Revised:2021-02-07 Online:2021-05-15 Published:2021-06-07

摘要/Abstract

摘要： 分析了含钾砂页岩中铁的赋存状态,开展含钾岩石除铁提质试验,并对除铁粉料应用于陶瓷原料进行试验研究。结果表明,采用磁选-酸浸工艺,在磨矿细度为-74 μm占50%(质量分数),磁场强度为190 mT,盐酸浓度为20%(质量分数),浸出温度为90 ℃的最佳条件下,除铁粉料中全铁含量可降低为0.13%(质量分数),K₂O和Na₂O总含量提高至11.00%(质量分数),含量符合陶瓷用钾长石Ⅰ级品要求。除铁粉料在陶瓷胚体成型试验中易于成型,烧成温度范围宽,成品率高,可替代长石作为陶瓷原料使用,开拓了含钾砂页岩作为陶瓷原料使用的新方向。

关键词: 含钾砂页岩, 除铁, 赋存状态陶瓷原料, 陶瓷性能

Abstract: Based on the analysis of the occurrence state of iron in potassium bearing rock, the experiment of iron removal purification of potassium bearing sand shale was carried out, and the application of iron removal powder in ceramic raw materials was studied. The results show that, under the optimum conditions that the grinding fineness (-74 μm) is 50% (mass fraction), the magnetic field strength is 190 mT, the hydrochloric acid concentration is 20% (mass fraction), the leaching temperature is 90 ℃, the total iron content in iron removal powder can be reduced to 0.13% (mass fraction), and the total content of K₂O and Na₂O increases to 11.00% (mass fraction) which meets the requirements of grade I potassium feldspar for ceramics. The iron removal powder is easy to be formed in the forming test of ceramic embryo, with wide firing temperature range and high yield, It can be used as ceramic raw material instead of feldspar. A new direction of using potassium bearing sand shale as raw materials of ceramics has been developed.

Key words: potassium bearing sand shale, iron removal, occurrence state ceramic raw material, ceramic property

中图分类号:

TQ174
TD985

何瑞明, 赵玉莲, 王勇, 史伟, 李诚, 李爱民. 含钾砂页岩除铁提质及陶瓷应用试验研究[J]. 硅酸盐通报, 2021, 40(5): 1672-1678.

HE Ruiming, ZHAO Yulian, WANG Yong, SHI Wei, LI Cheng, LI Aimin. Experimental Study on Iron Removal Purification of Potassium Bearing Sand Shale and Its Application of Ceramics[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(5): 1672-1678.

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含钾砂页岩除铁提质及陶瓷应用试验研究

Experimental Study on Iron Removal Purification of Potassium Bearing Sand Shale and Its Application of Ceramics

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