GB950148A - Improvements in or relating to the production of ultrafine metal particles - Google Patents

Improvements in or relating to the production of ultrafine metal particles

Info

Publication number
GB950148A
GB950148A GB1653762A GB1653762A GB950148A GB 950148 A GB950148 A GB 950148A GB 1653762 A GB1653762 A GB 1653762A GB 1653762 A GB1653762 A GB 1653762A GB 950148 A GB950148 A GB 950148A
Authority
GB
United Kingdom
Prior art keywords
less
metal particles
ultrafine metal
relating
production
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
GB1653762A
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.)
Union Carbide Corp
Original Assignee
Union Carbide 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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB950148A publication Critical patent/GB950148A/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
    • B22F9/28—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from gaseous metal compounds

Abstract

Ultrafine metal particles (e.g. less than 0.1m ) of Fe, V, Nb, Ta, Cr, Mo or W are produced by introducing a stream of metal halide vapour, shielded with a co-current stream of gas, into a reaction zone where it contacts a gaseous reducing agent (H2) at 450-1300 DEG C., the product particles being quenched by passing them, prior to recovery, through a cooling zone at a temperature of less than 1300 DEG C., but not less than 300 DEG C., said temperature being less than the reaction temperature. The shielding gas disclosed is argon.
GB1653762A 1961-05-03 1962-05-01 Improvements in or relating to the production of ultrafine metal particles Expired GB950148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10757061A 1961-05-03 1961-05-03

Publications (1)

Publication Number Publication Date
GB950148A true GB950148A (en) 1964-02-19

Family

ID=22317257

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1653762A Expired GB950148A (en) 1961-05-03 1962-05-01 Improvements in or relating to the production of ultrafine metal particles

Country Status (1)

Country Link
GB (1) GB950148A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568863A1 (en) * 1992-05-04 1993-11-10 H.C. Starck GmbH & Co. KG Fine metal particles
EP0568862A1 (en) * 1992-05-04 1993-11-10 H.C. Starck GmbH & Co. KG Fine metal particles
EP0650791A1 (en) * 1993-11-02 1995-05-03 H.C. Starck GmbH & Co. KG Fine particles of metals, alloys and metal compounds

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568863A1 (en) * 1992-05-04 1993-11-10 H.C. Starck GmbH & Co. KG Fine metal particles
EP0568862A1 (en) * 1992-05-04 1993-11-10 H.C. Starck GmbH & Co. KG Fine metal particles
US5403375A (en) * 1992-05-04 1995-04-04 H.C. Starck Gmbh & Co. Kg Fine-particle metal powders
US5407458A (en) * 1992-05-04 1995-04-18 H. C. Starck Gmbh & Co. Kg. Fine-particle metal powders
EP0650791A1 (en) * 1993-11-02 1995-05-03 H.C. Starck GmbH & Co. KG Fine particles of metals, alloys and metal compounds

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