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公开(公告)号:US20040254058A1
公开(公告)日:2004-12-16
申请号:US10864487
申请日:2004-06-10
发明人: Nobuo Takagi , Masami Tadasa
IPC分类号: C04B035/04 , C04B035/105
CPC分类号: C04B35/443 , C04B33/1327 , C04B33/138 , C04B33/32 , C04B33/36 , C04B35/013 , C04B35/2683 , C04B35/6263 , C04B35/62695 , C04B2235/3201 , C04B2235/3206 , C04B2235/3208 , C04B2235/3217 , C04B2235/3232 , C04B2235/3241 , C04B2235/3243 , C04B2235/3272 , C04B2235/3418 , C04B2235/349 , C04B2235/528 , C04B2235/5427 , C04B2235/5436 , C04B2235/5463 , C04B2235/652 , C04B2235/763 , C04B2235/77 , C04B2235/786 , C04B2235/96 , Y02P40/67 , Y02P40/69
摘要: A fired spinel complex oxide is produced by firing a mixture containing a slag by-produced in chromium refining, a reducer, and a silica-containing material, and is essentially composed of: 29 to 40 percent by weight of Fe2O3; 15 to 20 percent by weight of Al2O3; 9 to 14 percent by weight of MgO; 0 to 4 percent by weight of Na2O; 9 to 17 percent by weight of Cr2O3; 14 to 20 percent by weight of SiO2; and 2 percent by weight or less of CaO. The fired spinel complex oxide shows a CunullKnull X-ray diffraction pattern in which the ratio (b/a) of the diffraction peak intensity of the silica-containing material (b) in the vicinity of 2nullnull26.7null to the null113null plane diffraction peak intensity (a) in the vicinity of 2nullnull36null is 0.1 or less.
摘要翻译: 烧制的尖晶石复合氧化物通过在铬精炼,还原剂和含二氧化硅的材料中烧成含有渣的混合物来制造,并且基本上由以下组成:29〜40重量%的Fe 2 O 3; 15〜20重量%的Al 2 O 3; 9〜14重量%的MgO; 0至4重量%的Na 2 O; 9〜17重量%的Cr 2 O 3; 14〜20重量%的SiO 2; 和2重量%以下的CaO。 烧成的尖晶石复合氧化物显示Cu-Kalpha X射线衍射图,其中二氧化硅的材料(b)的衍射峰强度在2θ= 26.7°附近与{113的比率(b / a) 在2θ= 36°附近的平面衍射峰强度(a)为0.1以下。