Title:
PREPARATION OF PHENIUM TRIOXIDE FINE PARTICLE AND PHENIUM TRIOXIDE FINE PARTICLE OBTAINED THEREBY
Document Type and Number:
Japanese Patent JP3956400
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject highly electroconductive fine particle having an ultrafine particle diameter, a low resistivity and an ultralow content of impurities by dissolving a prescribed heptavalent rhenium compound in an alcohol, water, etc., and carrying out specific treatment.
SOLUTION: One or more heptavalent rhenium compound such as rhenium heptoxide, perrhenic acid and ammonium perrhenate (e.g. Re2O7) is dissolved in one or more of an alcohol, a ketone, an amine and water (e.g. methanol, acetone or N,N-dimethylformamide) and the resultant mixture solution is then heated until the liquid content is mostly or wholly evaporated. The resultant rhenium trioxide fine particle, as necessary, is heat-treated at 200-250°C to reduce the resistance value. The obtained rhenium trioxide fine particle has ≤100nm particle diameter and ≤10-1Ω.cm resistivity.
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Inventors:
Hiroshi Takeda
Yuko Inage
Yuko Inage
Application Number:
JP32361195A
Publication Date:
August 08, 2007
Filing Date:
November 17, 1995
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C01G47/00; B22F9/08; C09D5/00; C09D5/24; C09D5/33; C09D7/12; H01B1/00; H01B1/12; (IPC1-7): C01G47/00; C09D5/24; C09D5/33; C09D7/12; H01B1/00; H01B1/12; //B22F9/08
Domestic Patent References:
| JP55162428A | ||||
| JP64000680A | ||||
| JP5234433A |
Attorney, Agent or Firm:
Yoshiteru Oshida
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