FR2227337A1 - Homogeneous nickel-iron alloy powders - from reduction of oxalates - Google Patents

Homogeneous nickel-iron alloy powders - from reduction of oxalates

Info

Publication number
FR2227337A1
FR2227337A1 FR7414547A FR7414547A FR2227337A1 FR 2227337 A1 FR2227337 A1 FR 2227337A1 FR 7414547 A FR7414547 A FR 7414547A FR 7414547 A FR7414547 A FR 7414547A FR 2227337 A1 FR2227337 A1 FR 2227337A1
Authority
FR
France
Prior art keywords
oxalates
reduction
iron alloy
degrees
alloy powders
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.)
Granted
Application number
FR7414547A
Other languages
French (fr)
Other versions
FR2227337B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NICKEL FR
Original Assignee
NICKEL FR
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
Application filed by NICKEL FR filed Critical NICKEL FR
Publication of FR2227337A1 publication Critical patent/FR2227337A1/en
Application granted granted Critical
Publication of FR2227337B1 publication Critical patent/FR2227337B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Oxalates are pptd. at 40-90 degrees C from soln. contg. Ni and Fe as chlorides, nitrates, or sulphates. Oxalate is treated with NaOH soln. at 40-90 degrees C and the resulting pptd. hydroxide is reduced at 400-1000 degrees C in H2. Particle size of the NiFe powder can be controlled by adjusting pH, concn. temp. and reaction time during pptn. of oxalates. The metal alloy powder is homogeneous and yield is almost quantitative. The oxalate can be recovered for re-use.
FR7414547A 1973-04-27 1974-04-26 Homogeneous nickel-iron alloy powders - from reduction of oxalates Granted FR2227337A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU67506A LU67506A1 (en) 1973-04-27 1973-04-27

Publications (2)

Publication Number Publication Date
FR2227337A1 true FR2227337A1 (en) 1974-11-22
FR2227337B1 FR2227337B1 (en) 1978-07-07

Family

ID=19727322

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7414547A Granted FR2227337A1 (en) 1973-04-27 1974-04-26 Homogeneous nickel-iron alloy powders - from reduction of oxalates

Country Status (2)

Country Link
FR (1) FR2227337A1 (en)
LU (1) LU67506A1 (en)

Also Published As

Publication number Publication date
FR2227337B1 (en) 1978-07-07
LU67506A1 (en) 1974-11-21

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Legal Events

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ST Notification of lapse