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GB1468001A - Metal powders - Google Patents

Metal powders

Info

Publication number
GB1468001A
GB1468001A GB2296173A GB2296173A GB1468001A GB 1468001 A GB1468001 A GB 1468001A GB 2296173 A GB2296173 A GB 2296173A GB 2296173 A GB2296173 A GB 2296173A GB 1468001 A GB1468001 A GB 1468001A
Authority
GB
United Kingdom
Prior art keywords
carbonyl
decomposer
nickel
powder
diluent gas
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
GB2296173A
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.)
Inco Europe Ltd
Original Assignee
Inco Europe Ltd
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 Inco Europe Ltd filed Critical Inco Europe Ltd
Priority to GB2296173A priority Critical patent/GB1468001A/en
Priority to US467127A priority patent/US3918955A/en
Priority to CA199,395A priority patent/CA1016780A/en
Priority to FR7416415A priority patent/FR2229774B1/fr
Priority to JP49053816A priority patent/JPS5041757A/ja
Priority to DE2423309A priority patent/DE2423309A1/en
Priority to US05/596,570 priority patent/US4018596A/en
Publication of GB1468001A publication Critical patent/GB1468001A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/20—Dry methods smelting of sulfides or formation of mattes from metal carbonyls
    • 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
    • B22F9/30—Making metallic powder or suspensions thereof using chemical processes with decomposition of metal compounds, e.g. by pyrolysis
    • B22F9/305—Making metallic powder or suspensions thereof using chemical processes with decomposition of metal compounds, e.g. by pyrolysis of metal carbonyls
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/06—Refining
    • C22B23/065—Refining carbonyl methods

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

1468001 Carbonyl nickel INCO EUROPE Ltd 13 May 1974 [15 May 1973] 22961/73 Heading C7D 'B' type nickel powder consisting of agglomerates of interlocking filaments or chains of interconnected particles having a low e.g. less than 1 g/ml bulk density can be obtained by the decomposition of nickel carbonyl in a decomposer, with or without the presence of an inert diluent gas, usually CO in which the rate of carbonyl input, the amount of diluent gas and the decomposition temperature are so related that fluffy Mi powder is not deposited on the heated walls of the decomposer, and the fine 'A' type powder produced in the process, up to 15 wt. per cent is removed in the exit gases and recovered separately. Oxygen up to 0À1% by volume preferably 0À01-0À06%, is added to the diluent gas to promote nuclei formation, and the carbonyl concentration is 10-80%, preferably 14-18%, of the total gas volume. With an inner wall temperature of the upper part of the decomposer of 400-500‹C preferably not exceeding 470C and the temperature of the internal space about 240-280‹C, and with a total gas flow of 550m<SP>3</SP>/h and 14-18% carbonyl present, 'B' type powder with a bulk density of 0À5-0À9 g/ml and a Fisher particle size of 2À87- 3À07 Ám was obtained.
GB2296173A 1973-05-15 1973-05-15 Metal powders Expired GB1468001A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB2296173A GB1468001A (en) 1973-05-15 1973-05-15 Metal powders
US467127A US3918955A (en) 1973-05-15 1974-05-06 Metal powders
CA199,395A CA1016780A (en) 1973-05-15 1974-05-09 Metal powders
FR7416415A FR2229774B1 (en) 1973-05-15 1974-05-13
JP49053816A JPS5041757A (en) 1973-05-15 1974-05-14
DE2423309A DE2423309A1 (en) 1973-05-15 1974-05-14 PROCESS FOR MANUFACTURING B-NICKEL POWDER
US05/596,570 US4018596A (en) 1973-05-15 1975-07-16 High shrinkage powder body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2296173A GB1468001A (en) 1973-05-15 1973-05-15 Metal powders

Publications (1)

Publication Number Publication Date
GB1468001A true GB1468001A (en) 1977-03-23

Family

ID=10187862

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2296173A Expired GB1468001A (en) 1973-05-15 1973-05-15 Metal powders

Country Status (6)

Country Link
US (1) US3918955A (en)
JP (1) JPS5041757A (en)
CA (1) CA1016780A (en)
DE (1) DE2423309A1 (en)
FR (1) FR2229774B1 (en)
GB (1) GB1468001A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2161549C1 (en) * 2000-04-07 2001-01-10 ОАО "Институт Гипроникель" Method of producing nickel carbonyl powders with chain structure and bulk density of less than 1

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1468591A (en) * 1973-06-01 1977-03-30 Deutsche Automobilgesellsch Electrodes for galvanic cells
US4853030A (en) * 1988-04-15 1989-08-01 Gaf Corporation Method and apparatus for the manufacture of metallic filaments
US5064464A (en) * 1988-11-10 1991-11-12 Mitsubishi Petrochemical Company Limited Process for producing ultrafine metal particles

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663630A (en) * 1949-11-04 1953-12-22 Basf Ag Production of metal powders
US2674528A (en) * 1951-01-22 1954-04-06 Gen Aniline & Film Corp Production of metal carbonyl powders of small size
FR1098894A (en) * 1953-04-24 1955-08-23 Basf Ag Manufacture of light metal powders
US3694186A (en) * 1970-07-07 1972-09-26 Int Nickel Co Thermal decomposition of nickel carbonyl

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2161549C1 (en) * 2000-04-07 2001-01-10 ОАО "Институт Гипроникель" Method of producing nickel carbonyl powders with chain structure and bulk density of less than 1

Also Published As

Publication number Publication date
FR2229774A1 (en) 1974-12-13
FR2229774B1 (en) 1978-11-17
CA1016780A (en) 1977-09-06
DE2423309A1 (en) 1974-12-05
JPS5041757A (en) 1975-04-16
US3918955A (en) 1975-11-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee