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投稿时间：2022-12-21 修订日期：2022-12-30 录用日期：2023-01-01 网络发布日期：2023-03-17
投稿时间：2022-12-21 修订日期：2022-12-30 录用日期：2023-01-01 网络发布日期：2023-03-17
中文摘要: 以高纯CdCl2、TeO2为原料，(NH4)2CO3为沉淀剂，采用共沉淀氢还原的方法制备出碲化镉粉末。结合XRD、SEM、TG等研究手段分析上述过程发生的物相转变和微观结构变化。结合相关化学反应热力学数据，对氢化过程发生的化学反应进行理论分析。结果表明，当CdCl2和TeO2以摩尔比1︰1进行混合得到的碲镉共沉物，Cd2+以1~2 μm的CdCO3的形式在TeO2的表面沉淀析出；在500 ℃氢氩混合气（10%H2+90%Ar）气氛下，成功还原出单一相组成的碲化镉粉末。
Abstract:CdTe powder was prepared by co-precipitation and hydrogen reduction method applying high purity CdCl2 and TeO2 as raw materials and (NH4)2CO3 as precipitant. The phase transformation and microstructure change during the above process were analyzed by means of XRD, SEM, TG and other research methods. Based on the thermodynamic data of chemical reactions, the chemical reactions occurred in hydrogenation process were theoretically analyzed. The results show that when CdCl2 and TeO2 are mixed at a molar ratio of 1︰1, the Cd and Te co-precipitation product is obtained. Cd2+ precipitates on the surface of TeO2 in the form of CdCO3 with a size of 1~2 μm. The CdTe powder composed of single phase is successfully reduced under the atmosphere of hydrogen argon mixture (10% H2+90% Ar) at 500 ℃.
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基金项目:矿冶科技集团有限公司科研基金重点项目（02-2004）
| 作者 | 单位 | |
| 邹发夔* | 北京矿冶研究总院 | 972045562@qq.com |
| 王海北 | 矿冶科技集团有限公司 | |
| 范艳青 | 矿冶科技集团有限公司 | |
| 刘巍 | 矿冶科技集团有限公司 |
| Author Name | Affiliation | |
| ZOU Fa-kui | Beijing General Research Institute Of Mine & Metallurgy | 972045562@qq.com |
| WANG Hai-bei | ||
| FAN Yan-qing | ||
| LIU Wei |
引用文本：
邹发夔,王海北,范艳青,刘巍.湿法制备高纯碲化镉粉末[J].有色金属（冶炼部分）,2023(4):89-95.
ZOU Fa-kui,WANG Hai-bei,FAN Yan-qing,LIU Wei.Preparation of High Purity CdTe Powder by Hydrometallurgical Method[J].Nonferrous Metals (Extractive Metallurgy),2023(4):89-95.
邹发夔,王海北,范艳青,刘巍.湿法制备高纯碲化镉粉末[J].有色金属（冶炼部分）,2023(4):89-95.
ZOU Fa-kui,WANG Hai-bei,FAN Yan-qing,LIU Wei.Preparation of High Purity CdTe Powder by Hydrometallurgical Method[J].Nonferrous Metals (Extractive Metallurgy),2023(4):89-95.
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