GB675350A - Improvements relating to the production of iron powder - Google Patents

Improvements relating to the production of iron powder

Info

Publication number
GB675350A
GB675350A GB2817250A GB2817250A GB675350A GB 675350 A GB675350 A GB 675350A GB 2817250 A GB2817250 A GB 2817250A GB 2817250 A GB2817250 A GB 2817250A GB 675350 A GB675350 A GB 675350A
Authority
GB
United Kingdom
Prior art keywords
iron powder
iron
production
improvements relating
temperature below
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.)
Expired
Application number
GB2817250A
Inventor
Nils Herman Brundin
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.)
Hoganas AB
Hoganas Billesholms AB
Original Assignee
Hoganas AB
Hoganas Billesholms AB
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 Hoganas AB, Hoganas Billesholms AB filed Critical Hoganas AB
Priority to GB2817250A priority Critical patent/GB675350A/en
Publication of GB675350A publication Critical patent/GB675350A/en
Expired 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
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

In the production of iron powder, powdered iron oxide is reduced at a temperature of at least 950 DEG C. to reduce the oxygen content to 1-10 per cent, ground to the desired grain size, and finally reduced to iron at a temperature below that of sintering. The product may be again ground to break up loosely bound aggregates of iron powder. The reducing agent in each case may be solid or gaseous carbonaceous substances and the agent in the final reduction may be finely divided high carbon pig iron. The first reduction may be at 1000-1200 DEG C. and the final reduction at a temperature below 950 DEG C.
GB2817250A 1950-11-17 1950-11-17 Improvements relating to the production of iron powder Expired GB675350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2817250A GB675350A (en) 1950-11-17 1950-11-17 Improvements relating to the production of iron powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2817250A GB675350A (en) 1950-11-17 1950-11-17 Improvements relating to the production of iron powder

Publications (1)

Publication Number Publication Date
GB675350A true GB675350A (en) 1952-07-09

Family

ID=10271424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2817250A Expired GB675350A (en) 1950-11-17 1950-11-17 Improvements relating to the production of iron powder

Country Status (1)

Country Link
GB (1) GB675350A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2431541A1 (en) * 1978-07-19 1980-02-15 Uop Inc PROCESS FOR THE PREPARATION OF PURE PULVERULENT IRON

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2431541A1 (en) * 1978-07-19 1980-02-15 Uop Inc PROCESS FOR THE PREPARATION OF PURE PULVERULENT IRON

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