公开(公告)号：EP1761353B1

公开(公告)日：2009-06-10

申请号：EP05773483.2

申请日：2005-06-20

申请人： H.C. Starck Inc.

发明人： SHEKHTER, Leonid, Natan ,  MCCORMICK, Edward, V. ,  SIMKINS, Leah, F. ,  SCHIELE, Edward, K.

IPC分类号： B22F9/20 ,  C22B34/24

CPC分类号： H01G9/042 ,  B22F9/20 ,  C22B5/04 ,  C22B34/1268 ,  C22B34/1277 ,  C22B34/24 ,  H01G9/0525

摘要： A method of producing a refractory metal powder by (A) combining (i) an oxide particle component and (ii) a reducing agent; (B) forming a substantially uniform mixture of (i) and (ii); (C) continuously feeding the mixture into a furnace; (D) igniting the mixture at a reaction zone and starting a reaction that is sufficiently exothermic to form a high temperature flash; (E) starting a reaction that is sufficiently exothermic to form a high temperature self-sustaining flash; and (F) producing a free-flowing reduced oxide powder.

公开(公告)号：EP1761353A1

公开(公告)日：2007-03-14

申请号：EP05773483.2

申请日：2005-06-20

申请人： H.C. Starck Inc.

发明人： SHEKHTER, Leonid, Natan ,  MCCORMICK, Edward, V. ,  SIMKINS, Leah, F. ,  SCHIELE, Edward, K.

IPC分类号： B22F9/20 ,  C22B34/24

CPC分类号： H01G9/042 ,  B22F9/20 ,  C22B5/04 ,  C22B34/1268 ,  C22B34/1277 ,  C22B34/24 ,  H01G9/0525

摘要： A method of producing a refractory metal powder by (A) combining (i) an oxide particle component and (ii) a reducing agent; (B) forming a substantially uniform mixture of (i) and (ii); (C) continuously feeding the mixture into a furnace; (D) igniting the mixture at a reaction zone and starting a reaction that is sufficiently exothermic to form a high temperature flash; (E) starting a reaction that is sufficiently exothermic to form a high temperature self-sustaining flash; and (F) producing a free-flowing reduced oxide powder.