MANUFACTURING PROCESS OF REFRACTORY GRAINS CONTAINING CHROMIUM 3 OXIDE

摘要

A method for manufacturing sintered refractory grains containing Cr2CO3 from an initial refractory product including one or more chromium that includes: A) optionally, /crushing the starting refractory material; B) grinding a filler, comprising said starting refractory material in a liquid medium to obtain a suspension of particles of said starting refractory material; C) preparing a starting mixture including at least 1 wt % of particles of the suspension obtained during the preceding step; D) shaping the starting mixture into the shape of a preform; E) optionally drying the preform obtained in step D); F) sintering the preform so as to obtain a sintered body; G) optionally grinding the sintered body; and H) the optional selection by particle size.