Title:
VALVE METAL PARTICLES AND THE METHOD FOR PREPARING THE SAME
Document Type and Number:
WIPO Patent Application WO/2009/086721
Kind Code:
A8
Abstract:
A method for preparing valve metal particles uniformly containing nitrogen includes: the raw material particles of the valve metal are heated in a nitrogen-containing gas at a temperature of 200°C or less for 2 hours or more. The valve metal particles prepared by above method uniformly contain nitrogen, wherein the difference ratio of nitrogen contents of particles is 20% or less.
Inventors:
LI BIN (CN)
PAN LUNTAO (CN)
ZHENG AIGUO (CN)
MA YUEZHONG (CN)
CHENG YUEWEI (CN)
DONG XUECHENG (CN)
ZHANG XUEQING (CN)
WANG ZHIDAO (CN)
ZHU BAOJUN (CN)
PAN LUNTAO (CN)
ZHENG AIGUO (CN)
MA YUEZHONG (CN)
CHENG YUEWEI (CN)
DONG XUECHENG (CN)
ZHANG XUEQING (CN)
WANG ZHIDAO (CN)
ZHU BAOJUN (CN)
Application Number:
PCT/CN2008/001723
Publication Date:
December 26, 2019
Filing Date:
October 13, 2008
Export Citation:
Assignee:
NINGXIA ORIENT TANTALUM IND CO LTD (CN)
LI BIN (CN)
PAN LUNTAO (CN)
ZHENG AIGUO (CN)
MA YUEZHONG (CN)
CHENG YUEWEI (CN)
DONG XUECHENG (CN)
ZHANG XUEQING (CN)
WANG ZHIDAO (CN)
ZHU BAOJUN (CN)
LI BIN (CN)
PAN LUNTAO (CN)
ZHENG AIGUO (CN)
MA YUEZHONG (CN)
CHENG YUEWEI (CN)
DONG XUECHENG (CN)
ZHANG XUEQING (CN)
WANG ZHIDAO (CN)
ZHU BAOJUN (CN)
International Classes:
B22F1/00; B22F9/04; H01G4/008; H01G9/052
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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