WO1990006200A1 - Procede de fabrication de poudres metalliques dispersees - Google Patents

Procede de fabrication de poudres metalliques dispersees Download PDF

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Publication number
WO1990006200A1
WO1990006200A1 PCT/SU1988/000242 SU8800242W WO9006200A1 WO 1990006200 A1 WO1990006200 A1 WO 1990006200A1 SU 8800242 W SU8800242 W SU 8800242W WO 9006200 A1 WO9006200 A1 WO 9006200A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
meτallοv
mol
metal
hydroxide
Prior art date
Application number
PCT/SU1988/000242
Other languages
English (en)
Russian (ru)
Inventor
Olga Nikolaevna Leontieva
Antonina Vasilievna Shoitova
Alexandr Alexandrovich Royanov
Dmitry Ivanovich Ryzhonkov
Igor Dmitrievich Morokhov
Jury Albertovich Bolotov
Julia Mikhailovna Gavrilova
Jury Leonidovich +Di Krasulin
Original Assignee
Institut Metallurgii Imeni A.A.Baikova Akademii Nauk Sssr
Bukanaeva, Firuzi Mikhailovna +Lf
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 Institut Metallurgii Imeni A.A.Baikova Akademii Nauk Sssr, Bukanaeva, Firuzi Mikhailovna +Lf filed Critical Institut Metallurgii Imeni A.A.Baikova Akademii Nauk Sssr
Priority to JP89502621A priority Critical patent/JPH03502345A/ja
Priority to PCT/SU1988/000242 priority patent/WO1990006200A1/fr
Priority to EP19890902701 priority patent/EP0397877A4/de
Priority to DD89329225A priority patent/DD284826A5/de
Publication of WO1990006200A1 publication Critical patent/WO1990006200A1/fr
Priority to FI903712A priority patent/FI903712A0/fi

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
    • B22F9/20—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

Definitions

  • the average particle size of the particles is 20-80 nm. - 2 -
  • Izves ⁇ en s ⁇ s ⁇ b ( ⁇ 8, ⁇ , 3326677) ⁇ lucheniya (dis ⁇ e ⁇ sn ⁇ - u ⁇ chnenny ⁇ s ⁇ lav ⁇ v) dis ⁇ e ⁇ sny ⁇ me ⁇ alliches ⁇ i ⁇ ⁇ sh ⁇ v, v ⁇ lyuchayuschy ⁇ imiches ⁇ e ⁇ sazhdenie gid ⁇ isey me ⁇ all ⁇ v of mn ⁇ g ⁇ m ⁇ nen ⁇ n ⁇ g ⁇ ⁇ as ⁇ v ⁇ a i ⁇ az ⁇ n ⁇ isly ⁇ s ⁇ ley, v ⁇ lyuchaya gid ⁇ a ⁇ y Yu, i ⁇ ⁇ il ⁇ atsiyu, and sush ⁇ u ⁇ sleduyuschee sele ⁇ ivn ⁇ e v ⁇ s- s ⁇ an ⁇ vlenie v ⁇ d ⁇ d ⁇ m.
  • the hazardous substance is a malfunctioning device, and it is a result of harm to the user.
  • the base is alkaline with a concentration of 6-15 mol / l, so
  • the resulting dispersed metal powders have a greater active and reactive potential.
  • the developed method is distinguished by the simple technology and the equipment of the process, the standard can be used. Otherwise, the method will allow you to receive dispersed metallic impurities wide-
  • the proposed method is quite economical, since the recovery of a small hydride is reduced by 4 times.
  • the developed method of environmentally friendly harmless use of all the processed devices can be easy to neutral
  • the convenient method of operation is quick and easy to use, and the device is equipped with electronic devices.
  • Example 1 in case of use of another metal, external waste of this material will be lost through the optional equipment, after filtration and washing. After a short time, the metal hydroxide, processed by the other metal, is washed and washed, and the resulting powder is washed. 15 Example 1.
  • the dispersed nickel powder has a particle size of 3–30 nm; no impurities were found.
  • the dispersed bulk of copper has a particle size of 300–500 nm, a particle size of $ 10, and a sulfur content of 0.0001.
  • Example 4 The dispersed bulk of copper has a particle size of 300–500 nm, a particle size of $ 10, and a sulfur content of 0.0001.
  • Example 4 The dispersed bulk of copper has a particle size of 300–500 nm, a particle size of $ 10, and a sulfur content of 0.0001.
  • Target product $ 90 Example 4.
  • Dispersed nickel powder has a particle size of 3-30 nm. Consistency ⁇ sera $ 0.0001. Target product $ 90. Example 5.
  • the dispersion of the nickel due to the broadening of the particle size is 3-30 nm. There is no need for anything.
  • the resulting iron hydroxide is dried on air - for 3 hours. Removing the product at a temperature of 15 ° 350 ° C, which is 180 ° C higher than the temperature at the beginning of the recovery of iron hydroxide, at a consumption of 6 m / m of gas.
  • the obtained iron iron has a particle size of 3-30 nm. There is no need for anything.
  • the target price of the product is $ 90. 20 Example 7.
  • the resulting product composition is 35 -- ⁇ - 65 $ ⁇ ⁇ ⁇ ⁇ with an equal distribution of molybdenum in a ceramic matrix. He is not found.
  • Dispersed metal products can be used in agriculture, as a means of stimulating the production of land and in two cases for the purpose of remitting the property.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Furnace Details (AREA)

Abstract

Un procédé de fabrication de poudres métalliques dispersées consiste à traiter des hydrates solides de sels minéraux métalliques avec des solutions alcalines d'une concentration égale à 6-15 mol/l, cette solution contenant 1,5 à 2 fois plus d'alcalis par rapport à sa quantité stoechiométriquement nécessaire pour obtenir l'hydroxyde. On procède au filtrage, au séchage et à la réduction des hydroxydes métalliques obtenus à l'aide d'hydrogène. On effectue ladite réduction à une température de 200 à 300°C supérieure à celle du début de la réduction des hydroxydes des métaux correspondants, avec une consommation d'hydrogène de 2,5 à 6 m3/mol Mexh sur la base du sel initial. Après réduction, on procède à la passivation des poudres obtenues à l'aide d'un gaz inerte.
PCT/SU1988/000242 1988-11-25 1988-11-25 Procede de fabrication de poudres metalliques dispersees WO1990006200A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP89502621A JPH03502345A (ja) 1988-11-25 1988-11-25 微細な金属粉の製造方法
PCT/SU1988/000242 WO1990006200A1 (fr) 1988-11-25 1988-11-25 Procede de fabrication de poudres metalliques dispersees
EP19890902701 EP0397877A4 (en) 1988-11-25 1988-11-25 Method for making dispersed metal powders
DD89329225A DD284826A5 (de) 1988-11-25 1989-06-02 Verfahren zur herstellung disperser metallpulver
FI903712A FI903712A0 (fi) 1988-11-25 1990-07-24 Foerfarande foer framstaellning av finfoerdelade metallpulver.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SU1988/000242 WO1990006200A1 (fr) 1988-11-25 1988-11-25 Procede de fabrication de poudres metalliques dispersees

Publications (1)

Publication Number Publication Date
WO1990006200A1 true WO1990006200A1 (fr) 1990-06-14

Family

ID=21617347

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SU1988/000242 WO1990006200A1 (fr) 1988-11-25 1988-11-25 Procede de fabrication de poudres metalliques dispersees

Country Status (5)

Country Link
EP (1) EP0397877A4 (fr)
JP (1) JPH03502345A (fr)
DD (1) DD284826A5 (fr)
FI (1) FI903712A0 (fr)
WO (1) WO1990006200A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6857321B2 (ja) * 2016-10-27 2021-04-14 住友金属鉱山株式会社 ニッケル粉末の製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427159A (en) * 1963-07-25 1969-02-11 Polaroid Corp Diffusion transfer process utilizing heat transfer
FR2084406A5 (fr) * 1970-03-16 1971-12-17 Israel Mining Ind Inst For Res
US3940261A (en) * 1974-07-24 1976-02-24 Eastman Kodak Company Process for preparing crystalline silver particles having electrically conductive surfaces and product

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833351A (en) * 1973-02-15 1974-09-03 Univ Eng Inc Continuous preparation of pure metals by hydrogen reduction
US3877931A (en) * 1973-07-20 1975-04-15 Daniel R Neskora Continuous preparation of pure metals by gaseous reduction
US4184868A (en) * 1978-05-31 1980-01-22 Gte Sylvania Incorporated Method for producing extra fine cobalt metal powder
US4214896A (en) * 1979-05-14 1980-07-29 Gte Products Corporation Process for producing cobalt metal powder
AT372987B (de) * 1981-12-02 1983-12-12 Voest Alpine Ag Verfahren zum rueckgewinnen von metallen aus ihren sauren salzloesungen
US4414021A (en) * 1982-05-06 1983-11-08 Welbon William W Process for the synthesis of iron powder
JPS62139803A (ja) * 1985-12-12 1987-06-23 Okamura Seiyu Kk 強磁性金属粉の製造方法
US4798623A (en) * 1988-02-19 1989-01-17 Gte Products Corporation Method for producing fine cobalt metal powder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427159A (en) * 1963-07-25 1969-02-11 Polaroid Corp Diffusion transfer process utilizing heat transfer
FR2084406A5 (fr) * 1970-03-16 1971-12-17 Israel Mining Ind Inst For Res
US3940261A (en) * 1974-07-24 1976-02-24 Eastman Kodak Company Process for preparing crystalline silver particles having electrically conductive surfaces and product

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0397877A4 *

Also Published As

Publication number Publication date
EP0397877A4 (en) 1991-05-08
EP0397877A1 (fr) 1990-11-22
JPH03502345A (ja) 1991-05-30
DD284826A5 (de) 1990-11-28
FI903712A0 (fi) 1990-07-24

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