RU98107836A - SILICON IRON POWDER CONTAINING SILICON, METHOD FOR ITS PRODUCTION AND DEVICE FOR IMPLEMENTING THE METHOD - Google Patents

SILICON IRON POWDER CONTAINING SILICON, METHOD FOR ITS PRODUCTION AND DEVICE FOR IMPLEMENTING THE METHOD

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Publication number
RU98107836A
RU98107836A RU98107836/02A RU98107836A RU98107836A RU 98107836 A RU98107836 A RU 98107836A RU 98107836/02 A RU98107836/02 A RU 98107836/02A RU 98107836 A RU98107836 A RU 98107836A RU 98107836 A RU98107836 A RU 98107836A
Authority
RU
Russia
Prior art keywords
silicon
powder containing
iron powder
decomposition
paragraphs
Prior art date
Application number
RU98107836/02A
Other languages
Russian (ru)
Other versions
RU2207934C2 (en
Inventor
Зимон Йоахим
Шлегель Райнхольд
Лойтнер Бернд
Original Assignee
Басф Акциенгезельшафт
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
Priority claimed from DE19716882A external-priority patent/DE19716882A1/en
Application filed by Басф Акциенгезельшафт filed Critical Басф Акциенгезельшафт
Publication of RU98107836A publication Critical patent/RU98107836A/en
Application granted granted Critical
Publication of RU2207934C2 publication Critical patent/RU2207934C2/en

Links

Claims (8)

1. Железный порошок, содержащий кремний, состоящий, преимущественно, из частиц сферической формы с диаметром 0,005-10 мкм или из нитеобразных образований этих частиц с содержанием кремния 0,5 - 25 вес.% и особенно низким содержанием посторонних элементов.1. Iron powder containing silicon, consisting mainly of spherical particles with a diameter of 0.005-10 microns or of filamentous formations of these particles with a silicon content of 0.5 - 25 wt.% And a particularly low content of foreign elements. 2. Способ получения железного порошка, содержащего кремний, путем термического разложения газовой смеси, содержащей пентакарбонил железа и летучее соединение кремния, в котором газовую смесь пропускают через нагретую реакционную емкость и осуществляют нагрев газовой смеси за счет теплопроводности, отличающийся тем, что в качестве летучего соединения кремния применяют силан или не содержащий галогены органосилан, выбранный из триэтилсилана и тетраэтоксисилана. 2. A method of producing an iron powder containing silicon by thermal decomposition of a gas mixture containing iron pentacarbonyl and a volatile silicon compound, in which the gas mixture is passed through a heated reaction vessel and the gas mixture is heated due to thermal conductivity, characterized in that as a volatile compound silicon, a silane or a halogen-free organosilane selected from triethylsilane and tetraethoxysilane is used. 3. Способ по п. 2, отличающийся тем, что в качестве летучего соединения кремния применяют SiH4.3. The method according to p. 2, characterized in that SiH 4 is used as a volatile silicon compound. 4. Способ по п. 2 или 3, отличающийся тем, что разложение проводят в присутствии аммиака и/или водорода. 4. The method according to p. 2 or 3, characterized in that the decomposition is carried out in the presence of ammonia and / or hydrogen. 5. Способ по любому из пп. 2-4, отличающийся тем, что разложение осуществляют при температуре 200 - 600°С. 5. The method according to any one of paragraphs. 2-4, characterized in that the decomposition is carried out at a temperature of 200 - 600 ° C. 6. Способ по любому из пп. 2-5, отличающийся тем, что полное разложение осуществляют при давлении 1 - 2 бар. 6. The method according to any one of paragraphs. 2-5, characterized in that the complete decomposition is carried out at a pressure of 1 to 2 bar. 7. Способ по любому из пп. 2-6, отличающийся тем, что полученный железный порошок, содержащий кремний, после разложения восстанавливают газообразным водородом. 7. The method according to any one of paragraphs. 2-6, characterized in that the obtained iron powder containing silicon, after decomposition, is reduced with hydrogen gas. 8. Устройство для осуществления способа по любому из пп. 2-6, отличающееся тем, что оно содержит нагреваемую трубу декомпозера, устройство для установления двух различных температурных зон, устройство для испарения жидкого пентакарбонила железа, устройство для дозирования и смешивания газов и отделитель железного порошка, содержащего кремний. 8. Device for implementing the method according to any one of paragraphs. 2-6, characterized in that it contains a heated decomposer tube, a device for setting two different temperature zones, a device for evaporating liquid iron pentacarbonyl, a device for metering and mixing gases and a separator of iron powder containing silicon.
RU98107836/02A 1997-04-22 1998-04-21 Silicon containing iron powder and method of its production RU2207934C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19716882A DE19716882A1 (en) 1997-04-22 1997-04-22 Silicon-containing iron powder
DE19716882.5 1997-04-22

Publications (2)

Publication Number Publication Date
RU98107836A true RU98107836A (en) 2000-01-27
RU2207934C2 RU2207934C2 (en) 2003-07-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU98107836/02A RU2207934C2 (en) 1997-04-22 1998-04-21 Silicon containing iron powder and method of its production

Country Status (9)

Country Link
US (1) US5993569A (en)
EP (1) EP0878259B1 (en)
JP (1) JP4106413B2 (en)
CN (1) CN1293970C (en)
AT (1) ATE230322T1 (en)
DE (2) DE19716882A1 (en)
ES (1) ES2190000T3 (en)
RU (1) RU2207934C2 (en)
TW (1) TW365556B (en)

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Publication number Priority date Publication date Assignee Title
DE19834236A1 (en) 1998-07-29 2000-02-03 Basf Ag Carbonyl iron silicide powder
US6411248B1 (en) * 1999-10-13 2002-06-25 Raytheon Company Hot melt radar absorbing material (RAM)
US6419760B1 (en) * 2000-08-25 2002-07-16 Daido Tokushuko Kabushiki Kaisha Powder magnetic core
JP2002158484A (en) * 2000-11-21 2002-05-31 Sony Corp Radio wave absorber
KR100375000B1 (en) * 2001-02-20 2003-03-06 한국과학기술연구원 Method for Preparing Core-shell Nanosize Composite Particles
JP4336810B2 (en) * 2001-08-15 2009-09-30 大同特殊鋼株式会社 Dust core
KR100658113B1 (en) * 2005-04-27 2006-12-14 한국기계연구원 A production process of Fe nano powder with silica coating by Chemical Vapor Condensation
JP5595401B2 (en) * 2008-09-10 2014-09-24 ビーエーエスエフ ソシエタス・ヨーロピア Integrated process for producing carbonyl iron powder and hydrocarbons
CN101572151B (en) * 2009-02-19 2011-08-24 祁峰 Method for manufacturing iron-silicon alloy composite magnetic powder core with magnetic conductivity mu being equal to 60
JP5370688B2 (en) * 2010-03-18 2013-12-18 Ｔｄｋ株式会社 Powder magnetic core and manufacturing method thereof
EP2425916B1 (en) 2010-09-01 2014-11-12 Directa Plus S.p.A. Multiple feeder reactor for the production of nanoparticles of metal
EP2425915B1 (en) * 2010-09-01 2015-12-02 Directa Plus S.p.A. Multi mode production complex for nano-particles of metal
CN105702412A (en) * 2016-04-18 2016-06-22 南京大学 Beta-FeSi2 nanometre hexahedral particle having strong optical control room-temperature ferromagnetism and preparation method thereof
EP3318534A1 (en) * 2016-11-07 2018-05-09 Höganäs AB (publ) Iron based media
JP7201417B2 (en) * 2018-01-17 2023-01-10 Ｄｏｗａエレクトロニクス株式会社 SILICON OXIDE-COATED IRON POWDER AND ITS MANUFACTURING METHOD AND INDUCTOR MOLDED BODY AND INDUCTOR USING THE SAME

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GB109522A (en) * 1916-10-30 1917-09-20 Thomas Bradbear A New or Improved Elevating or Lifting Apparatus for Acids or the like.
DE819690C (en) * 1949-11-12 1951-11-05 Basf Ag Process for obtaining an iron powder for powder metallurgical purposes
GB1098522A (en) * 1965-01-07 1968-01-10 Vitaly Grigorievich Syrkin Method of manufacture of a high-dispersion carbonyl iron
US4468474A (en) * 1983-05-16 1984-08-28 Allied Corporation Iron/silicon-based catalyst exhibiting high selectivity to C2 -C62 Fischer-Tropsch reactions
US4558017A (en) * 1984-05-14 1985-12-10 Allied Corporation Light induced production of ultrafine powders comprising metal silicide powder and silicon

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