专利名称：IRON OXIDES WITH A HIGHER DEGREE OF
REFINING
发明人：WALSDORFF, CHRISTIAN,BAIER,
MICHAEL,KOERNER, REINHARD,HARTH,KLAUS,VORBERG, GERALD,RUPPEL, WILHELM
申请号：EP02732550.5申请日：20020403公开号：EP1379470B2公开日：20120314
摘要：The invention relates to a method for refining iron oxide by calcination of theiron oxides at a temperature of from 700 to 1200 °C.
申请人：BASF SE,BASF SE,BASF SE
地址：DE
国籍：DE
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