process for the production of finely divided hematite; process for the production of red iron oxide pigments; finely divided hematite; red iron oxide pigment; use of finely divided hematite; and process for painting industry products

摘要

abstract process for the production of finely divided hematite; process for the production of red iron oxide pigments; finely divided hematite; red iron oxide pigment; use of finely divided hematite; The present invention relates to an improved process for the production of finely divided hematite and red iron oxide pigments consisting of finely divided hematite and the use of finely divided hematites and red oxide pigments. produced by this process.