JPH0474810A - Manufacture of nickel base metal fine powder - Google Patents

Manufacture of nickel base metal fine powder

Info

Publication number
JPH0474810A
JPH0474810A JP18996290A JP18996290A JPH0474810A JP H0474810 A JPH0474810 A JP H0474810A JP 18996290 A JP18996290 A JP 18996290A JP 18996290 A JP18996290 A JP 18996290A JP H0474810 A JPH0474810 A JP H0474810A
Authority
JP
Japan
Prior art keywords
particle shape
reducing
fine powder
hydrazine
metal fine
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.)
Pending
Application number
JP18996290A
Other languages
Japanese (ja)
Inventor
Ippei Nakagawa
中川 一兵
Haruo Matsui
春夫 松井
Nobuhiro Hirabayashi
平林 宣洋
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP18996290A priority Critical patent/JPH0474810A/en
Publication of JPH0474810A publication Critical patent/JPH0474810A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To manufacture high pure Ni metal fine powder having well-regulated particle diameter and particle shape by using hydrazine and boron compound hydride as a chemical reducing agent in non-water solvent and bivalent alcohol as a particle shape controlling agent and a reducing nickel compound. CONSTITUTION:The nickel compound is reduced with the non-water solvent series of absolute alcohol, etc. Then, the hydrazine having a slow reducing velocity is used as the main reducing agent and a little quantity of sodium boride hydride having strong reducing force is used in order to induce the reduction and sub-micron particles having a well-regulated particle diameter and particle shape can be manufactured. By adding further bivalent alcohol as a particle shape controlling agent, spherical particles, can be obtd. As a means for separating the product into metal, hydroxide and oxide, electro-magnetic separation is executed by using an electro-magnet. After that, solid-liquid separation is executed with a centrifugal separator to obtain the product having high purity (99%).

Description

【発明の詳細な説明】 [産業上の利用分野] 導伝性ペースト、電磁波シールド剤、電子回路リードフ
レーム用材料、粉末冶金、接合剤に利用できる。
[Detailed Description of the Invention] [Industrial Application Fields] It can be used in conductive pastes, electromagnetic shielding agents, electronic circuit lead frame materials, powder metallurgy, and bonding agents.

[従来の技術] 水溶液系でニッケル化合物を次亜りん酸や水素化ほう素
ナトリウムなどの還元剤で還元する方法が知られている
が、この方法では粒子径75を粗大になりやすく粒子−
形も不揃いで均一で高品質の製品が得られにくい、また
金属粒子と同時に水酸化物や酸化物が複製され、その分
離が龍しく純度の高い製品が得られにくい。
[Prior Art] A method is known in which a nickel compound is reduced with a reducing agent such as hypophosphorous acid or sodium borohydride in an aqueous solution system.
The shape is irregular, making it difficult to obtain a uniform, high-quality product.Also, hydroxides and oxides are replicated at the same time as the metal particles, making it difficult to separate them, making it difficult to obtain a highly pure product.

[発明が解決しようとする課題] 本発明は、前項で述べたような従来法の欠点を克服する
為に遂行された6本法の特徴は、無水アルコール等の非
水溶媒系で還元速度の緩やかなヒドラジンを主還元剤に
して、還元を誘起させるために少量の還元力の強い水素
化ホウ素ナトリウムを用い2粒径2粒形の整ったサブミ
クロン粒子を製造可能にしたことにある0粒形制御剤と
して二価アルコールを添加することにより球形粒子を得
ることができる。さらに金属と水酸化物や酸化物を分離
する手段として電磁石を用いて電磁分離し。
[Problems to be Solved by the Invention] The present invention is characterized by six methods carried out in order to overcome the drawbacks of the conventional methods as described in the previous section. Using mild hydrazine as the main reducing agent and a small amount of sodium borohydride with strong reducing power to induce reduction, it is possible to produce submicron particles with two particle sizes and two well-shaped particles. Spherical particles can be obtained by adding dihydric alcohol as a shape control agent. Furthermore, electromagnetic separation is performed using electromagnets as a means of separating metals from hydroxides and oxides.

高純度(99%)の製品を得る方法を見いだした。We have found a way to obtain a product with high purity (99%).

[実施例] 次に実施例によって2本発明をさらに詳細に説明する。[Example] Next, the present invention will be explained in more detail by way of examples.

実施例1 200m]のビーカーに100m1の無水メタノールを
太れ、これにN i  (NO3) =を飽和させた。
Example 1 100 ml of anhydrous methanol was added to a 200 m beaker and saturated with N i (NO3) =.

その後エチレングリコールを添力1比な、マグネチック
スターラーで攪伴しながら50m1のヒドラジンを加え
た。その後少量の水素化ホウ素ナトリウム粉末を振りか
ける。攪伴を停止し暫くするとビーカーの上部から還元
反応が進行しやがて激しく反応が進み、水素とアンモニ
アガスを発生しながらビーカーの低部まで反応が進む、
熟成させて反応が終わった後ビーカーごと電磁石の上に
載せ電磁分離する。その後遠心分1ill器で同液分離
した。沈澱を冷凍乾燥器で乾燥させた。
Thereafter, 50 ml of hydrazine was added with ethylene glycol added at a ratio of 1 while stirring with a magnetic stirrer. Then sprinkle a small amount of sodium borohydride powder. After stopping stirring for a while, the reduction reaction proceeds from the top of the beaker, and soon the reaction progresses violently, and the reaction progresses to the bottom of the beaker while generating hydrogen and ammonia gas.
After aging and reaction, the whole beaker is placed on an electromagnet for electromagnetic separation. Thereafter, the same liquid was separated using a centrifugal 1ill device. The precipitate was dried in a freeze dryer.

実施例2 Ni基合金微粉末の製造例を述べる。Example 2 An example of manufacturing Ni-based alloy fine powder will be described.

基本操作は実施例1で述べた方法と同じである。The basic operation is the same as the method described in Example 1.

所定の濃度比に成るように調整したNi  (NO3)
2とCuNO3を無水メタノールに溶かした飽和溶液を
作り、その後の操作は実施例1で述べた通りの方法°誕
った。Ni−Pd、Ni−Ag系の合金粉末も同様にし
て製造される。
Ni (NO3) adjusted to a predetermined concentration ratio
A saturated solution of 2 and CuNO3 in anhydrous methanol was prepared, and the subsequent operations were as described in Example 1. Ni-Pd and Ni-Ag alloy powders are also produced in the same manner.

[発明の効果] 本発明は、非水溶媒系で行う還元法であるので。[Effect of the invention] The present invention is a reduction method performed in a non-aqueous solvent system.

水分の影響を軽)威して物質の表面にコートする場合に
有効な方法である。たとえば、非酸化物系のセラミック
粉末を使う複合材f↓、カーボン繊維の酸化防1のため
の表面処理、導電性を要求する材第1図は9本発明で作
られたニッケル粉末のX線回折図である。横軸は角度(
CuKα)、縦軸は強度である。
This is an effective method for coating the surface of substances by reducing the influence of moisture. For example, composite materials f↓ that use non-oxide ceramic powder, surface treatment of carbon fiber to prevent oxidation, and materials that require electrical conductivity are shown in Figure 1. It is a diffraction diagram. The horizontal axis is the angle (
CuKα), and the vertical axis is the intensity.

第2図は、ニッケル粉末の粒度分布図である。FIG. 2 is a particle size distribution diagram of nickel powder.

第3図は、ニッケル粉末の粒子構造を示すSEM写真で
ある。
FIG. 3 is a SEM photograph showing the particle structure of nickel powder.

指定代理人 工業技術院名古屋工業技術試験所長 富山朔太部 ン9uc。designated agent Director, Nagoya Industrial Technology Testing Institute, Agency of Industrial Science and Technology Toyama Sakuta N9uc.

トーーイ /ATI 手続補正書彷即 平成2年11月26日 1、事件の表示 平成2年特許顕第189962号 2、発明の名称 ニッケル基金属微粉末の製造法 3、補正をする者 事件との関係 特許出願人 住 所  東京都千代田区霞が関1丁目3番1号(11
4)名 称  工業技術院長   杉 浦  賢4、指
定代理人
TOI/ATI Procedural amendment immediately November 26, 1990 1. Indication of the case 1990 Patent Publication No. 189962 2. Name of the invention Method for producing nickel-based metal fine powder 3. Person making the amendment Related patent applicant address: 1-3-1 Kasumigaseki, Chiyoda-ku, Tokyo (11
4) Name Ken Sugiura, Director of the Agency of Industrial Science and Technology 4, Designated Agent

Claims (1)

【特許請求の範囲】 1 化学還元剤にヒドラジンと水素化ほう素化合物、粒
形制御剤に二価アルコールを用いて、ニッケル化合物を
還元してNi金属微粉末を製造する方法。 2 請求項1記載の方法で、Ni−Pd、Ni−Ag、
Ni−Cu系の合金微粉末を製造する方法。
[Scope of Claims] 1. A method for producing fine Ni metal powder by reducing a nickel compound using hydrazine and a boron hydride compound as chemical reducing agents and a dihydric alcohol as a particle shape control agent. 2. In the method according to claim 1, Ni-Pd, Ni-Ag,
A method for producing Ni-Cu based alloy fine powder.
JP18996290A 1990-07-18 1990-07-18 Manufacture of nickel base metal fine powder Pending JPH0474810A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18996290A JPH0474810A (en) 1990-07-18 1990-07-18 Manufacture of nickel base metal fine powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18996290A JPH0474810A (en) 1990-07-18 1990-07-18 Manufacture of nickel base metal fine powder

Publications (1)

Publication Number Publication Date
JPH0474810A true JPH0474810A (en) 1992-03-10

Family

ID=16250105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18996290A Pending JPH0474810A (en) 1990-07-18 1990-07-18 Manufacture of nickel base metal fine powder

Country Status (1)

Country Link
JP (1) JPH0474810A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0985474A3 (en) * 1998-09-11 2000-03-29 Murata Manufacturing Co., Ltd. Metal powder, method for producing the same by reduction of metallic salt, and conductive pastes containing this metal powder
JP2008525640A (en) * 2004-12-28 2008-07-17 成都▲開▼▲飛▼高能化学工▲業▼有限公司 High tap density ultrafine spherical metallic nickel powder and wet manufacturing method thereof
CN100436008C (en) * 2007-04-10 2008-11-26 北京科技大学 Chemical production of metal nickel nano-line
JP2013253296A (en) * 2012-06-07 2013-12-19 Osaka Gas Co Ltd Method for producing alloy particle
CN104289724A (en) * 2014-09-15 2015-01-21 童东革 Preparing method of sea-urchin-shaped amorphous Ni-B alloy nanometer materials

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63125605A (en) * 1986-11-14 1988-05-28 Daido Steel Co Ltd Production of fine metal powder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63125605A (en) * 1986-11-14 1988-05-28 Daido Steel Co Ltd Production of fine metal powder

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0985474A3 (en) * 1998-09-11 2000-03-29 Murata Manufacturing Co., Ltd. Metal powder, method for producing the same by reduction of metallic salt, and conductive pastes containing this metal powder
US6156094A (en) * 1998-09-11 2000-12-05 Murata Manufacturing Co., Ltd. Method for producing metal powder
JP2008525640A (en) * 2004-12-28 2008-07-17 成都▲開▼▲飛▼高能化学工▲業▼有限公司 High tap density ultrafine spherical metallic nickel powder and wet manufacturing method thereof
JP4837675B2 (en) * 2004-12-28 2011-12-14 成都▲開▼▲飛▼高能化学工▲業▼有限公司 High tap density ultrafine spherical metallic nickel powder and wet manufacturing method thereof
CN100436008C (en) * 2007-04-10 2008-11-26 北京科技大学 Chemical production of metal nickel nano-line
JP2013253296A (en) * 2012-06-07 2013-12-19 Osaka Gas Co Ltd Method for producing alloy particle
CN104289724A (en) * 2014-09-15 2015-01-21 童东革 Preparing method of sea-urchin-shaped amorphous Ni-B alloy nanometer materials

Similar Documents

Publication Publication Date Title
KR910003572B1 (en) Powder comprising coated tungsten grains
US20130074728A1 (en) Metal microparticles and method for producing the same, metal paste containing the metal microparticles, and metal coat made of the metal paste
TW459054B (en) Method for the manufacture of substantially fully densified, finely divided, particles of gold by aerosol decomposition
CN106216705A (en) A kind of preparation method of 3D printing fine grained simple substance globular metallic powder
JP2014520207A (en) Nickel alloys for hydrogen storage and energy generation therefrom
CN104498762B (en) A kind of processing method of the siller tin oxide electric contact material containing additive
CN102489710B (en) Method for increasing collection efficiency in preparing nanometer copper-silver alloy powder by using inductive plasmas
JPH0474810A (en) Manufacture of nickel base metal fine powder
CN100489130C (en) Preparation method of silver nickel composite material
JPS63274706A (en) Production of metallic fine powder
KR102031753B1 (en) A method for preparing copper nano powder improved in oxidation stability
CN109518099B (en) Amorphous nano flower material and preparation method thereof
CN105798319A (en) Preparation method and device for silver-tungsten electrical contact material as well as electrical contact material and electrical contact
CN108610489B (en) Preparation method of nano material based on metal organic framework material and with different dimensions
KR102023711B1 (en) A silver nano powder of high purity
US2661387A (en) Porous electrode plates and process for making such articles
US6855186B2 (en) Process for the production of neodymium-iron-boron permanent magnet alloy powder
CN107475552A (en) A kind of preparation method of silver-nickel material
CN107755711A (en) A kind of square micro-nano silver powder, preparation method thereof
FI87895C (en) FOERFARANDE FOER FRAMSTAELLNING AV METALLPULVER
CN110314641B (en) Preparation method of lanthanum hydroxide nanoparticle phosphorus adsorption material
EP0386747B1 (en) Method of producing ferromagnetic rare earth-transition metal-boron powder by precipitation
CN112643026A (en) Preparation method of silver-coated nickel powder
JPH0249364B2 (en)
CN104493175B (en) A kind of preparation method of the siller tin oxide electric contact material containing additive