二水草酸镍,热分解,热重差热,粒径分布,NiO," /> 二水草酸镍,热分解,热重差热,粒径分布,NiO,"/> NiC2O4·2H2O;pyrolytic decomposition;TG-DSC;particle size distribution;NiO,"/> 二水草酸镍在空气中热分解过程的研究
无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2011, Vol. 43 ›› Issue (1): 25-26.

• 论文 • 上一篇    下一篇

二水草酸镍在空气中热分解过程的研究

 傅小明, 刘照文, 薛珊珊   

  1. (宿迁学院三系,江苏宿迁 223800
  • 出版日期:2011-01-10 发布日期:2011-03-17

Research on process of pyrolytic decomposition of NiC2O4·2H2O in the air

 FU  Xiao-Ming, LIU  Zhao-Wen, XUE  Shan-Shan   

  1. (The 3rd Department,Suqian College,Suqian 223800,China)
  • Published:2011-01-10 Online:2011-03-17

摘要: 通过热重差热分析仪和激光粒度分析仪对二水草酸镍在空气中热分解过程进行分析,研究结果表明:二水草酸镍在空气中的热分解过程经历了两个阶段,在175~275 ℃二水草酸镍失去结晶水;从325~400 ℃ NiC2O4被热分解为氧化镍。二水草酸镍在空气中热分解制备氧化镍过程中,在246.5~357.8 ℃,二水草酸镍在空气中热分解产物的粒径变化最大;在357.8~400.0 ℃,二水草酸镍在空气中热分解产物的粒径变化次之。因此,为了制备出超细的氧化镍,可以分段性地控制二水草酸镍的热分解条件。

关键词: font-family: 宋体, mso-bidi-font-size: 12.0pt, mso-ascii-font-family: 'Times New Roman', mso-hansi-font-family: 'Times New Roman', mso-bidi-font-family: 'Times New Roman', mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, 二水草酸镍')">mso-bidi-language: AR-SA">二水草酸镍, 热分解, 热重差热, 粒径分布, font-family: ", Times New Roman", mso-bidi-font-size: 12.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, NiO')">mso-fareast-font-family: 宋体">NiO

Abstract: Process of pyrolytic decomposition of NiC2O4·2H2O in the air was investigated by TG-DSC and laser granulometry.Results showed that there were two stages in the process of pyrolytic decomposition of NiC2O4 ·2H2O in the air.Firstly,the crystal water in NiC2O4·2H2O was lost at 175~275 ℃.Secondly,NiC2O4 was decomposed into NiO at 325~400 ℃.At the same time,the change of the particle size of pyrolytic decomposition product was the largest at 246.5~357.8 ℃ and the change was less at 357.8~400.0 ℃.Therefore,in order to prepare ultra fine NiO powder the pyrolytic decomposition conditions of NiC2O4·2H2O can be controlled by stages.

Key words: font-family: "Times New Roman", mso-bidi-font-size: 12.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, NiCmso-fareast-font-family: 宋体">NiCfont-family: "Times New Roman", mso-bidi-font-size: 12.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, 2mso-fareast-font-family: 宋体">2font-family: "Times New Roman", mso-bidi-font-size: 12.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, Omso-fareast-font-family: 宋体">Ofont-family: "Times New Roman", mso-bidi-font-size: 12.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, 4mso-fareast-font-family: 宋体">4font-family: 宋体, mso-bidi-font-size: 12.0pt, mso-ascii-font-family: 'Times New Roman', mso-hansi-font-family: 'Times New Roman', mso-bidi-font-family: 'Times New Roman', mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, ·mso-bidi-language: AR-SA">·font-family: "Times New Roman", mso-bidi-font-size: 12.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, 2Hmso-fareast-font-family: 宋体">2Hfont-family: 宋体, mso-bidi-font-size: 12.0pt, mso-ascii-font-family: 'Times New Roman', mso-hansi-font-family: 'Times New Roman', mso-bidi-font-family: 'Times New Roman', mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, 2mso-bidi-language: AR-SA">2font-family: "Times New Roman", mso-bidi-font-size: 12.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, O;pyrolytic decomposition;TG-DSC;particle size distribution;NiO')">mso-fareast-font-family: 宋体">O;pyrolytic decomposition;TG-DSC;particle size distribution;NiO