JPH01234507A - Production of molybdenum powder - Google Patents

Production of molybdenum powder

Info

Publication number
JPH01234507A
JPH01234507A JP6074388A JP6074388A JPH01234507A JP H01234507 A JPH01234507 A JP H01234507A JP 6074388 A JP6074388 A JP 6074388A JP 6074388 A JP6074388 A JP 6074388A JP H01234507 A JPH01234507 A JP H01234507A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
ammonium
soln
crystals
molybdate
hydrogen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6074388A
Inventor
Kiyotaka Ito
Original Assignee
Daido Steel Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Abstract

PURPOSE: To efficiently obtain Mo powder by heating an ammonium molybdate soln. to a high temp. to convert ammonium paramolybdate into ammonium dimolybdate, carrying out crystallization and reducing the resulting crystals with hydrogen.
CONSTITUTION: An ammonium molybdate soln. is heated to ≥80°C to convert ammonium paramolybdate in the soln. into ammonium dimolybdate having lower solubility. The soln. is then cooled at a prescribed cooling rate and many molybdate crystals are formed by crystallization. These crystals are reduced with hydrogen to obtain Mo powder.
COPYRIGHT: (C)1989,JPO&Japio
JP6074388A 1988-03-15 1988-03-15 Production of molybdenum powder Pending JPH01234507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6074388A JPH01234507A (en) 1988-03-15 1988-03-15 Production of molybdenum powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6074388A JPH01234507A (en) 1988-03-15 1988-03-15 Production of molybdenum powder

Publications (1)

Publication Number Publication Date
JPH01234507A true true JPH01234507A (en) 1989-09-19

Family

ID=13151048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6074388A Pending JPH01234507A (en) 1988-03-15 1988-03-15 Production of molybdenum powder

Country Status (1)

Country Link
JP (1) JPH01234507A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004508461A (en) * 2000-09-06 2004-03-18 ハー ツェー シュタルク ゲゼルシャフト ミット ベシュレンクテル ハフツング Hard alloy produced tungsten carbide and a manufacturing method and from the ultra coarse grain of a single crystal
GB2356803B (en) * 1999-11-16 2004-06-23 Nhk Spring Co Ltd Rotation limiting device and seat recliner device using the same
JP2008518095A (en) * 2004-10-21 2008-05-29 クライマックス・エンジニアード・マテリアルズ・エルエルシー Molybdenum metal powder and its manufacturing
JP2009527640A (en) * 2006-02-17 2009-07-30 クライマックス エンジニアード マテリアルズ リミテッド ライアビリティ カンパニー High density molybdenum metal powder and its manufacturing method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2356803B (en) * 1999-11-16 2004-06-23 Nhk Spring Co Ltd Rotation limiting device and seat recliner device using the same
JP2004508461A (en) * 2000-09-06 2004-03-18 ハー ツェー シュタルク ゲゼルシャフト ミット ベシュレンクテル ハフツング Hard alloy produced tungsten carbide and a manufacturing method and from the ultra coarse grain of a single crystal
JP2008518095A (en) * 2004-10-21 2008-05-29 クライマックス・エンジニアード・マテリアルズ・エルエルシー Molybdenum metal powder and its manufacturing
JP2009527640A (en) * 2006-02-17 2009-07-30 クライマックス エンジニアード マテリアルズ リミテッド ライアビリティ カンパニー High density molybdenum metal powder and its manufacturing method

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