CaO基含V2O5及TiO2脫磷終渣磷酸鹽賦存形式

王寶華; 劉崇; 朱榮; 張明博; 程玉君; 韓宇

doi:10.13374/j.issn2095-9389.2018.s1.015

CaO基含V₂O₅及TiO₂脫磷終渣磷酸鹽賦存形式

doi: 10.13374/j.issn2095-9389.2018.s1.015

王寶華^1,2,3,
劉崇⁴,
朱榮^1,2,
張明博^3, ,,
程玉君³,
韓宇³

1. 北京科技大學冶金與生態工程學院;
2. 高端金屬特種熔煉與制備北京市重點實驗室;
3. 河鋼股份有限公司承德分公司;
4. 河鋼集團鋼研總院

詳細信息

通訊作者:
張明博, E-mail:zhangmingbo45@163.com

中圖分類號: TF703
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- 文章訪問數: 17
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- 被引次數: 0
出版歷程
- 收稿日期: 2018-01-15
- 網絡出版日期: 2023-07-18

Form of phosphate enrichment of the CaO base containing V₂O₅ and TiO₂ semi-steel slag

WANG Bao-hua^1,2,3,
LIU Chong⁴,
ZHU Rong^1,2,
ZHANG Ming-bo^{3
, ,},
CHENG Yu-jun³,
HAN Yu³

1. School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing;
2. Beijing Key Laboratory of Special Melting and Preparation of High-end Metal Materials;
3. Chengde Steel Company,Hebei Steel Company Group;
4. Central Iron and SteelResearch Institute,HBIS Group

摘要

摘要: 以Ca O基含V₂O₅、Ti O₂脫磷終渣為研究對象, 采用共存理論建立磷富集程度R_ci-cj模型, 并與實際渣系的磷酸鹽賦存形式進行對比研究.結果表明:隨著堿度的增加, 3CaO·P₂O₅的質量作用濃度逐漸降低, 4CaO·P₂O₅的質量作用濃度逐漸增加, 而2CaO·Si O₂的質量作用濃度呈現出先增加后降低的趨勢;C₃P+C₄P的富集可能性范圍87%⁹4%, C₂S既是主要的硅酸鈣化合物也是形成富磷產物必不可少的物質, 磷酸鹽富集相中主要以C₂S-C₃P和C₂S-C₄P的形式存在于爐渣中, 結合掃描電鏡 (SEM) 結果、X射線衍射 (XRD) 分析與假設, 計算可得深灰色富磷區域內的含P₂O₅固溶體為2CaO·Si O₂-3CaO·P₂O₅和2CaO·Si O₂-4CaO·P₂O₅, 此結果與理論計算相吻合.
- 脫磷終渣 /
- 共存理論 /
- 磷富集模型 /
- 富磷礦相
Abstract: Studying on the Ca O base containing V₂O₅and Ti O₂semi-steel slag, a model of enrichment degree R_ci-cjwas built with the help of the ion and molecule coexistence theory, the result was compared with the actual enrichment form of phosphate.The results indicate that with the increasing of basicity, the mass action concentration of 3CaO·P₂O₅gradually decreases, and the mass action concentration of 4CaO·P₂O₅gradually increases.While the mass action concentration of 2CaO·Si O₂first increases and then decreases.The enrichment possibility range of the C₃P+C₄P is 87%-94%and the C₂S that is the essential substance for the formation of the rich phosphate mineral phase is main calcium silicate compounds.The solid solution 2CaO-Si O₂-3CaO-P₂O₅ (C₂S-C₃P) and 2CaO-Si O₂-4CaO-P₂O₅ (C₂S-C₄P) are the primary phosphate enrichment phase in the slag.According to the scanning electron microscopy (SEM) results, X-ray diffraction (XRD) analysis and hypothesis, the containing P₂O₅solid solution in dark grey area is calculated as2CaO·Si O₂-3CaO·P₂O₅and 2CaO·Si O₂-4CaO·P₂O₅, which is consistent with the theoretical calculation results.
- end dephosphorization slag /
- ion and molecule coexistence theory /
- phosphorus enrichment model /
- rich phosphate mineral phase

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參考文獻(18)

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