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公开(公告)号:US4376656A
公开(公告)日:1983-03-15
申请号:US311847
申请日:1981-10-16
申请人: Jihei Senda , Yoshihiro Inoue , Toshiaki Uenishi , Hidefumi Harada , Kouji Nakata , Akio Akagi , Yakanori Yamasaki
发明人: Jihei Senda , Yoshihiro Inoue , Toshiaki Uenishi , Hidefumi Harada , Kouji Nakata , Akio Akagi , Yakanori Yamasaki
CPC分类号: C09C3/063 , C09C1/24 , C01P2002/50 , C01P2002/70 , C01P2004/80 , C01P2006/37 , C01P2006/60 , C01P2006/80
摘要: Yellow iron oxide pigments having improved heat stability are prepared by subjecting an alkaline slurry of conventional yellow iron oxide, a soluble ferric salt, sodium aluminate, and a third metal component, exemplified by antimony ion or a zinc ion/titanium ion combination, to a hydrothermal (autoclave) treatment at about 100.degree.-240.degree. C. The separated solid product has a heat stability temperature (based on the color change from yellow to red when heated) appreciably higher than that of the starting iron oxide.
摘要翻译: 具有改善的热稳定性的黄色氧化铁颜料通过将常规的黄色氧化铁,可溶性铁盐,铝酸钠和第三金属组分的碱性浆料(例如锑离子或锌离子/钛离子组合) 在约100°-240℃下进行水热(高压釜)处理。分离的固体产物具有热稳定性温度(基于加热时从黄色到红色的颜色变化)明显高于起始氧化铁的温度。