EP0292798A3 - Hydrometallurgical process for producing finely divided spherical metal powders - Google Patents

Hydrometallurgical process for producing finely divided spherical metal powders Download PDF

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Publication number
EP0292798A3
EP0292798A3 EP88107645A EP88107645A EP0292798A3 EP 0292798 A3 EP0292798 A3 EP 0292798A3 EP 88107645 A EP88107645 A EP 88107645A EP 88107645 A EP88107645 A EP 88107645A EP 0292798 A3 EP0292798 A3 EP 0292798A3
Authority
EP
European Patent Office
Prior art keywords
finely divided
spherical metal
producing finely
metal powders
hydrometallurgical process
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.)
Withdrawn
Application number
EP88107645A
Other languages
German (de)
French (fr)
Other versions
EP0292798A2 (en
Inventor
Nelson E. Kopatz
Walter A. Johnson
Joseph E. Ritsko
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.)
Osram Sylvania Inc
Original Assignee
GTE Products Corp
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 GTE Products Corp filed Critical GTE Products Corp
Publication of EP0292798A2 publication Critical patent/EP0292798A2/en
Publication of EP0292798A3 publication Critical patent/EP0292798A3/en
Withdrawn legal-status Critical Current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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/065—Spherical particles

Abstract

A process for producing finely divided spherical metal alloy powders comprises forming an aqueous mineral acid solution containing at least one metal, forming a metallic material from the solution, reducing the metallic material to metal powder particles, subjecting the metal powder particles to a high temperature zone to melt a portion of the particles to form droplets and cooling the droplets to form essentially spherical metal particles.
EP88107645A 1987-05-27 1988-05-11 Hydrometallurgical process for producing finely divided spherical metal powders Withdrawn EP0292798A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5455787A 1987-05-27 1987-05-27
US54557 1987-05-27

Publications (2)

Publication Number Publication Date
EP0292798A2 EP0292798A2 (en) 1988-11-30
EP0292798A3 true EP0292798A3 (en) 1989-08-30

Family

ID=21991929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107645A Withdrawn EP0292798A3 (en) 1987-05-27 1988-05-11 Hydrometallurgical process for producing finely divided spherical metal powders

Country Status (3)

Country Link
EP (1) EP0292798A3 (en)
JP (1) JPS63307203A (en)
CA (1) CA1330625C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0692601B2 (en) * 1988-04-08 1994-11-16 新日本製鐵株式会社 Method for producing iron-based spherical particles
US5173108A (en) * 1989-03-21 1992-12-22 Gte Products Corporation Method for controlling the oxygen content in agglomerated molybdenum powders
US20200391295A1 (en) * 2017-11-14 2020-12-17 Pyrogenesis Canada Inc. Method and apparatus for producing fine spherical powders from coarse and angular powder feed material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663667A (en) * 1970-02-13 1972-05-16 Sylvania Electric Prod Process for producing metal powders
US3974245A (en) * 1973-12-17 1976-08-10 Gte Sylvania Incorporated Process for producing free flowing powder and product
GB2096176A (en) * 1981-04-01 1982-10-13 Nat Standard Co Process for producing controlled density metal bodies
JPS58224103A (en) * 1982-06-21 1983-12-26 Mitsui Mining & Smelting Co Ltd Production of fine copper powder
JPS5985804A (en) * 1982-11-09 1984-05-17 Shintou Bureetaa Kk Spheroidal iron powder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663667A (en) * 1970-02-13 1972-05-16 Sylvania Electric Prod Process for producing metal powders
US3974245A (en) * 1973-12-17 1976-08-10 Gte Sylvania Incorporated Process for producing free flowing powder and product
GB2096176A (en) * 1981-04-01 1982-10-13 Nat Standard Co Process for producing controlled density metal bodies
JPS58224103A (en) * 1982-06-21 1983-12-26 Mitsui Mining & Smelting Co Ltd Production of fine copper powder
JPS5985804A (en) * 1982-11-09 1984-05-17 Shintou Bureetaa Kk Spheroidal iron powder

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Vol. 8, No. 197 (M-324)[1634], 11th September 1984; & JP-A-59 085 804 (SHINTOU BUREETAA K.K.) (17-05-1984) *
PATENT ABSTRACTS OF JAPAN, Vol. 8, No. 80 (M-289)[1517], 12th April 1984; & JP-A-58 224 103 (MITSUI KINZOKU KOGYO K.K.) (26-12-1983) *
SOVIET POWDER METALLURGY AND METAL CERAMICS, Vol. 10, No. 5, May 1971, Pages 345-346, Plenum Publishing Corp., New York, US; V. Ya. BULANOV et al.: "Manufacture of alloyed iron powder by a chloride process". *

Also Published As

Publication number Publication date
EP0292798A2 (en) 1988-11-30
JPS63307203A (en) 1988-12-14
CA1330625C (en) 1994-07-12

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