多级深度还原法制备Ti6Al4V粉体中镁热自蔓延产物浸出动力学

doi:10.12068/j.issn.1005-3026.2023.10.007

东北大学学报（自然科学版） ›› 2023, Vol. 44 ›› Issue (10): 1416-1423.DOI: 10.12068/j.issn.1005-3026.2023.10.007

多级深度还原法制备Ti6Al4V粉体中镁热自蔓延产物浸出动力学

闫基森，豆志河，张廷安

(东北大学冶金学院，辽宁沈阳110819)

发布日期:2023-10-27
通讯作者: 闫基森
作者简介:闫基森(1993-)，男，河南南阳人，东北大学博士研究生；豆志河(1978-)，男，河南周口人，东北大学教授，博士生导师；张廷安(1960-)，男，河南周口人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(U1908225，U1702253，U1903129)；中央高校基本科研业务费专项资金资助项目(N182515007，N170908001，N2025004).

Leaching Kinetics of Magnesiothermic Self-propagating Products in Preparation of Ti6Al4V Powder by Multistage Deep Reduction Method

YAN Ji-sen， DOU Zhi-he， ZHANG Ting-an

School of Metallurgy， Northeastern University， Shenyang 110819， China.

Published:2023-10-27
Contact: ZHANG Ting-an
About author:-
Supported by:
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摘要/Abstract

摘要： 对多级深度还原法制备Ti6Al4V合金粉体过程中的镁热自蔓延产物的浸出过程进行了研究，探究了原料粒度、浸出温度和盐酸浓度对浸出过程的影响. 结果表明，温度和盐酸浓度对Ti的浸出率有很大的影响.Mg浸出反应的表观活化能为47.38kJ/mol，反应级数为0.22.Ti浸出反应的表观活化能为103.4kJ/mol，反应级数为1.142.最终选择D₅₀为59.4μm的镁热自蔓延产物作为原料，采用30℃的浸出温度和1mol/L的盐酸作为浸出条件.经过180min的浸出可将镁热自蔓延产物中的Mg去除92.1%，钛的损失率为17.5%.

关键词: 多级深度还原; 酸浸; Ti6Al4V合金粉体; 镁热自蔓延反应; 动力学

Abstract: The leaching process of magnesiothermic self-propagating products in the preparation of Ti6Al4V alloy powder by multi-stage deep reduction method was studied. The effects of raw material particle size， leaching temperature and hydrochloric acid concentration on the leaching process were studied. The results show that temperature and hydrochloric acid concentration have a great influence on the leaching rate of Ti. The apparent activation energy of the Mg leaching reaction was 47.38kJ/mol， and the reaction order was 0.22. The apparent activation energy of Ti leaching reaction was 103.4kJ/mol， and the reaction order was 1.142.Finally，the magnesiothermic self-propagating product with D₅₀ of 59.4μm was selected as the raw material， and the leaching temperature of 30℃ and the hydrochloric acid of 1mol/L were used as the leaching conditions.After 180min of leaching， 92.1% of Mg in the magnesiothermic self-propagating product can be removed， and the loss rate of titanium was 17.5%.

Key words: multistage deep reduction; acid leaching; Ti6Al4V alloy powder; magnesiothermic self-propagating reaction; kinetics

中图分类号:

TG146.23

闫基森，豆志河，张廷安. 多级深度还原法制备Ti6Al4V粉体中镁热自蔓延产物浸出动力学[J]. 东北大学学报（自然科学版）, 2023, 44(10): 1416-1423.

YAN Ji-sen， DOU Zhi-he， ZHANG Ting-an. Leaching Kinetics of Magnesiothermic Self-propagating Products in Preparation of Ti6Al4V Powder by Multistage Deep Reduction Method[J]. Journal of Northeastern University(Natural Science), 2023, 44(10): 1416-1423.

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多级深度还原法制备Ti6Al4V粉体中镁热自蔓延产物浸出动力学

Leaching Kinetics of Magnesiothermic Self-propagating Products in Preparation of Ti6Al4V Powder by Multistage Deep Reduction Method

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