GB642773A - Improvements in or relating to a process for preparing metal powders for the purposes of powder metallurgy from copper and iron containing ores - Google Patents

Improvements in or relating to a process for preparing metal powders for the purposes of powder metallurgy from copper and iron containing ores

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Publication number
GB642773A
GB642773A GB34533/47A GB3453347A GB642773A GB 642773 A GB642773 A GB 642773A GB 34533/47 A GB34533/47 A GB 34533/47A GB 3453347 A GB3453347 A GB 3453347A GB 642773 A GB642773 A GB 642773A
Authority
GB
United Kingdom
Prior art keywords
copper
separated
iron
relating
metal 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.)
Expired
Application number
GB34533/47A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB642773A publication Critical patent/GB642773A/en
Expired legal-status Critical Current

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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 And Refinement Of Metals (AREA)

Abstract

A method of producing metal powders from copper and iron containing ores is characterized in that the ores are first transformed into oxides of the metals and are then reduced at temperatures so low that fine grained metal powder is obtained, the powder being separated from gangue and unreduced metal oxides in known ways, e.g. by flotation or wind-sifting. By reduction at 250 DEG C only copper oxide is reduced and can be separated from the remaining material. By reduction at 900 DEG -950 DEG C a mixture of iron and copper powders is produced. The mixture may be separated as such or after annealing at the same temperature for two hours in an inert atmosphere, copper can be separated from iron and other material by flotation in an acid liquid. The remaining iron powder can be dried and separated magnetically from unwanted material. Specification 321,685, [Class 82(i)], is referred to.
GB34533/47A 1946-09-03 1947-12-29 Improvements in or relating to a process for preparing metal powders for the purposes of powder metallurgy from copper and iron containing ores Expired GB642773A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE642773X 1946-09-03

Publications (1)

Publication Number Publication Date
GB642773A true GB642773A (en) 1950-09-13

Family

ID=20313830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34533/47A Expired GB642773A (en) 1946-09-03 1947-12-29 Improvements in or relating to a process for preparing metal powders for the purposes of powder metallurgy from copper and iron containing ores

Country Status (1)

Country Link
GB (1) GB642773A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754194A (en) * 1953-12-29 1956-07-10 Republic Steel Corp Process for making copper-iron powder
US2754193A (en) * 1953-12-29 1956-07-10 Republic Steel Corp Process for making copper-iron powder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754194A (en) * 1953-12-29 1956-07-10 Republic Steel Corp Process for making copper-iron powder
US2754193A (en) * 1953-12-29 1956-07-10 Republic Steel Corp Process for making copper-iron powder

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