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2. 发明公开

EP1849540A1 Nickel powder manufacturing method 有权
标题翻译： Verfahren zur Herstellung von Nickelpulver
公开(公告)号：EP1849540A1
公开(公告)日：2007-10-31
申请号：EP07106095.8
申请日：2007-04-13
申请人： SHOEI CHEMICAL INC.
发明人： Akimoto, Yuji , Nagashima, Kazuro , Ieda, Hidenori , Kimura, Tetsuya
IPC分类号： B22F9/30
CPC分类号： B22F9/30 , B22F2999/00 , B22F9/24
摘要： A melt of nickel nitrate hydrate is introduced as droplets or liquid flow into a heated reaction vessel and thermally decomposed in a gas phase at a temperature of 1200°C or more and at an oxygen partial pressure equal to or below the equilibrium oxygen pressure of nickel-nickel oxide at that temperature to manufacture a highly crystalline fine nickel powder with an extremely narrow particle size distribution. The oxygen partial pressure during the thermal decomposition is preferably 10 -2 Pa or less, and a metal other than nickel, a semimetal and/or a compound of these may be added to the nickel nitrate hydrate melt to manufacture a highly crystalline nickel alloy powder or highly crystalline nickel composite powder. The resultant powder is suited in particular to thick film pastes such as conductor pastes for manufacturing ceramic multilayer electronic components.
摘要翻译：将硝酸镍水合物的熔体作为液滴或液体流引入加热的反应容器中，并在气相中在1200℃或更高的温度下并且在等于或低于镍的平衡氧气压力的氧分压下热分解 - 在该温度下的氧化镍，以制造具有非常窄的粒度分布的高度结晶的细镍粉末。热分解期间的氧分压优选为10 -2 Pa以下，并且可以向硝酸镍水合物熔体中添加镍以外的金属，这些的半金属和/或其化合物，以制造高度结晶的镍合金粉末或高度结晶的镍复合粉末。所得到的粉末特别适用于制造陶瓷多层电子部件的导电膏等厚膜糊。

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