WO2017073578A1 - 高密度ニッケル粉の製造方法 - Google Patents
高密度ニッケル粉の製造方法 Download PDFInfo
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- WO2017073578A1 WO2017073578A1 PCT/JP2016/081632 JP2016081632W WO2017073578A1 WO 2017073578 A1 WO2017073578 A1 WO 2017073578A1 JP 2016081632 W JP2016081632 W JP 2016081632W WO 2017073578 A1 WO2017073578 A1 WO 2017073578A1
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- 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
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- 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
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
- B22F9/26—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions using gaseous reductors
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- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
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- 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
- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/15—Nickel or cobalt
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- 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
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
Definitions
- the present invention relates to a method for producing high-purity and high-density nickel powder by hydrogen reduction.
- the nickel powder When the nickel powder has a diameter of several tens of ⁇ m or less, there are problems that dust is generated when dried and clogging occurs during filtration. Aside from the case where a fine size of several tens of ⁇ m or less is directly required as in an electronic material, when the obtained nickel powder is used as a raw material for re-dissolving the acid and obtaining a nickel compound salt, etc., 100 A particle size of about 160 ⁇ m and a bulk density of about 1 to 4.5 g / cm 3 is suitable for both treatment and handling, and has been desired.
- the nickel powder produced by the above-described method has a problem that the bulk density is low even if the particle size is large, that is, the density tends to be low.
- Such a low-density nickel powder has a problem in that impurities contained in the solution before reduction are likely to be deposited in addition to the bulky handling.
- Non-Patent Document 1 shows a method for industrially producing nickel powder, but the method for controlling the particle size in the main text also increases the particle size by increasing the amount of nickel to be reduced. However, no method has been found for obtaining high-density nickel powder.
- the present invention provides a method for producing a high-density nickel powder having a median diameter of 100 to 160 ⁇ m, in particular, by controlling the particle diameter of the nickel powder.
- a first invention of the present invention for solving the above-mentioned problems is that a nickel ammine complex solution containing nickel at a concentration of 5 g / L or more and 75 g / L or less is used in an amount of 5 g or more and 200 g per liter of the complex solution.
- the mixture is heated in a pressure vessel having a stirrer together with the following amount of seed crystals, then hydrogen gas is blown into the pressure vessel to perform a reduction reaction with hydrogen, and nickel in the nickel ammine complex solution is used as nickel powder.
- the following A operation is repeated at least once to obtain nickel powder having a median diameter of 100 ⁇ m to 160 ⁇ m and a bulk density of 1 to 4.5 g / cm 3.
- Niobium powder It is a manufacturing method of nickel powder.
- the second invention of the present invention is characterized in that the A operation in the first invention is repeated four or more times, and nickel powder is obtained by performing a total of five or more reduction reactions together with the first operation. It is a manufacturing method of nickel powder.
- FIG. 4A is a view subsequent to FIG. 4A, showing a cross section of the nickel powder obtained at each repetition number when the reduction reaction with nickel hydrogen is repeatedly performed using high-purity nickel powder with a controlled particle diameter as a seed crystal. It is a figure (after 5 times and 7 times of hydrogen reduction reactions). It is a manufacturing flow figure of the conventional nickel powder.
- nickel having a controlled particle size is obtained by carrying out a reduction reaction with hydrogen of a nickel complex ion contained in a nickel ammine complex solution by adjusting a limited fixed mixing state and a seed crystal amount during a reduction reaction. After the first operation for obtaining powder, the following operation A is repeatedly performed.
- nickel powder obtained by the reduction reaction is fractionated by density, low-density nickel powder is used as a seed crystal, and after making a limited and fixed mixed state, a reduction reaction with hydrogen is performed to obtain nickel powder. Is the operation to get.
- the precipitation of nickel proceeds inside the nickel powder, and the increase in the bulk density becomes more significant than the growth of the particle diameter, thereby obtaining a high-density nickel powder.
- the number of repetitions is at least one operation A, and the bulk density is 2 g / cm 3 or more.
- the A operation is performed at least three times, and in order to stably obtain a bulk density higher than that, preferably A
- the operation is performed four times or more, that is, when the first precipitation (initial operation) is included, the nickel deposition by the reduction reaction is repeated five times or more.
- the number of repetitions of the A operation is increased to 5 times (6 times including the first) or more, the effect is small, and the increase in density reaches its peak after 4 repetitions of the A operation. Will not be obtained and will end in vain.
- the nickel concentration in the nickel ammine complex solution is 5 g / L or more and 75 g / L or less
- the seed crystal is 5 g or more and 200 g or less per liter of the nickel ammine complex solution having the nickel concentration.
- a mixed state in which nickel powder as seed crystals is added is formed.
- the smaller the stirring speed in the mixed state the larger the median diameter is generated.
- the larger the seed crystal amount the larger the particle diameter (median diameter).
- the particle diameter of the nickel powder produced can be controlled by controlling the amount of seed crystals and adjusting the seed crystal amount.
- Example 1 referring to the flow chart for producing a dense high-density nickel powder with a controlled particle diameter according to the present invention shown in FIG. Investigate the influence of the mixed state and the amount of seed crystals on the control of the particle size of the nickel particles obtained by the reduction reaction, and determine the mixed state and the amount of seed crystals to obtain nickel powder with a target particle size of 100 ⁇ m to 160 ⁇ m. investigated.
- a broken line arrow indicates “first operation”
- a thick curve arrow indicates “A operation”.
- the particle diameter of the nickel powder produced can be controlled by controlling the stirring power and adjusting the seed crystal amount.
- the nickel powder according to Example 2 was produced by the following production procedure.
- the particle diameter (median diameter) of the nickel powder recovered using the same particle size distribution measuring apparatus as in Example 1 was measured every time each reduction reaction was completed. Moreover, cross-sectional observation was implemented and the density inside particle
- the horizontal axis represents the number of repetitions of the reduction reaction including the reduction reaction of the first operation
- the vertical axis represents the particle size [ ⁇ m]
- the vertical axis represents the bulk density [g / cm 3 ].
- the particle diameter is 100 to 160 ⁇ m and the bulk density is 1 It was found that nickel powder in the range of ⁇ 4.5 g / cm 3 was obtained.
- FIG. 3 shows that the bulk density increases without increasing the particle size as the number of repetitions of the reduction reaction is increased. That is, a high-density nickel powder is obtained.
- the number of repetitions including the reduction reaction of the first operation increases rapidly until 4 times, but the increase in the bulk density after the 5th time is small beyond 4 times, indicating a substantially constant value. Become. That is, it is suitable to perform the reduction reaction by the reduction treatment five times by repeating the A operation four times, that is, the reduction reaction of the first operation.
- the mechanism by which the inside becomes denser than when the outer diameter increases by repeated hydrogen reduction is not known exactly, for example, the supplied hydrogen is occluded by nickel powder, and there is no influence of contact between particles of nickel powder One of the causes is considered to be growth by reducing nickel ions in the solution in contact with the inside of the particles. From these results, it was found that the high-purity nickel powder having a controlled particle size was used as a seed crystal, and the reduction reaction was repeated, whereby the particle size was controlled within a certain range and at the same time a high-density nickel powder having a dense inside could be produced.
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- General Chemical & Material Sciences (AREA)
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Abstract
Description
この方法は、特許文献1に示すように、ニッケルを含んだアンミン錯体溶液を加圧容器に入れて密栓後昇温し、その中に水素ガスを吹き込むもので、水素により還元されニッケル粉が得られるものである。
このような低密度なニッケル粉は、それだけ嵩張りハンドリングの手間となるほかに、還元前の溶液に含有された不純物が析出しやすいという課題もある。
しかしながら、特許文献1においては、粒子径の制御法について有機添加剤を添加するものについてしか示されておらず、この方法のみでは高密度なニッケル粉を得ることは難しく、他の手法を見出すことが課題となっていた。
(A操作):得られたニッケル粉を密度で選別して密度の小さいニッケル粉を採取し、前記ニッケルが5g/L以上、75g/L以下の濃度で含有されるニッケルアンミン錯体溶液1リットルについて5g以上、200g以下の量となるように秤量した前記採取した密度の小さいニッケル粉を種結晶として前記ニッケルアンミン錯体溶液とともに攪拌機を有する加圧容器に入れて昇温し、次いで加圧容器内に水素ガスを吹き込んで水素による還元反応を施してニッケル粉を得る操作。
このA操作を繰り返すことでニッケル粉内部でのニッケルの析出が進み、粒径の成長よりも嵩密度の増加が顕著になり、高密度なニッケル粉を得るものである。
その繰り返し回数は、メディアン径が100μm以上、160μm以下で、1~4.5g/cm3の嵩密度をもつニッケル粉を得るには少なくともA操作を1回、また嵩密度を2g/cm3以上を得るには少なくともA操作を2回以上繰り返し、さらに4g/cm3を超える高嵩密度を得るにはA操作を少なくとも3回、それ以上の嵩密度を安定して得るには、望ましくはA操作を4回以上、すなわち最初の析出(初回操作)を含めると5回以上、還元反応よるニッケルの析出を繰り返す。しかし、このA操作の繰り返しを5回(最初を含め6回)以上に増やしても効果は少なく、4回のA操作の繰り返しで密度の増加は頭打ちなり、それ以上の繰返しは実用上の効果が得られず無駄に終わってしまう。
この還元反応時には、ニッケルアンミン錯体溶液中のニッケル濃度は5g/L以上、75g/L以下の濃度とし、種晶は上記ニッケル濃度のニッケルアンミン錯体溶液1リットル当たり5g以上、200g以下の量となるように種晶とするニッケル粉を加えた混合状態を形成する。
その混合状態の形成に際して、混合状態における撹拌速度が小さい程、メディアン径が大きな粒子が生成し、同一撹拌速度では、種晶量が多いほど粒子径(メディアン径)が増加することから、攪拌動力を制御し、種晶量を調整することで生成するニッケル粉の粒子径を制御できる。
次に密度による分別は、例えば水を張った円筒にニッケル粉を入れ撹拌して正立させ静置することで、高密度なニッケル粉を円筒の下端に、低密度なものを上部に集めることができ、この低密度なニッケル粉の中から必要な繰り返しに充当する量を採取すればよい。
図1において、破線矢印は「初回操作」を示し、太曲線矢印は「A操作」を示す。
(手順1)
粒子径(メディアン径)約1μmのニッケル粉を用意し、これを5g、7.5g、15g、22.5g分取して、それぞれに硫酸ニッケル六水和物336g、硫酸アンモニウム330g、25%アンモニア水191mlに純水約440mlを加え、液量が1リットルになるよう調合した元液をそれぞれ2サンプル、合計8サンプルを用意した。
(手順2)
上記手順1で用意した元液を、それぞれオートクレーブの内筒缶に投入し、内筒缶をオートクレーブに設置した。
(手順3)
この手順では混合状態の影響を調べるために、ニッケル粉の添加量別に、それぞれ攪拌速度500rpmと750rpmとで撹拌した。なお、攪拌速度500rpmでの撹拌動力は3.6W/L、750rpmでの撹拌動力は11.3W/Lだった。
(手順4)
オートクレーブ内の液温度を185℃まで上昇させた。
(手順5)
所定の温度に維持しつつ、水素ガスを全圧で3.5MPaを維持するようにボンベから吹き込んだ。
(手順6)
水素吹き込み開始から60分が経過した後、水素ガスの吹き込みを停止し、オートクレーブを降温した。
(手順7)
70℃以下まで降温後、内筒缶を取り出し、液を濾過してニッケル粉を回収し回収したニッケル粉を洗浄並びに真空乾燥した。
(手順8)
回収したニッケル粉の粒子径(メディアン径)を粒度分布測定装置を用いて測定した。
<初回操作>
(手順1)
実施例1で用いたものと同じ粒径約1μmのニッケル粉を、種晶として22.5g添加し、撹拌速度500rpmとした以外は実施例1と同じ装置と方法を用いて1回目のニッケル粉を作製した。
(手順2)
手順1で得たニッケル粉を密度の大小で分別し、低密度な側から91gを分取し、断面組織観察に充当するとともに、硫酸ニッケル六水和物336g、硫酸アンモニウム330g、25%アンモニア水191mlに添加し、純水約440mlを加えて液量が1リットルになるよう調合した溶液を作製した。
なお、密度の大小はニッケル粉を純水を満たしたメスシリンダーに入れ、撹拌後静置して後に、上方から必要な量のニッケル粉を分取した。
(手順3)
上記により作製した溶液を実施例1と同じオートクレーブに装入した。
(手順4)
750rpmの撹拌速度で撹拌しながらオートクレーブを185℃まで上昇させ、水素ガスを2L/min(大気圧下流量)で吹き込み、全圧が3.5MPaを維持するように水素ガスの吹き込みを制御し、1回目の繰り返し(初回から2回目)の還元反応を行った。
(手順5)
60分が経過後、水素ガスの吹き込みを停止し、オートクレーブを降温した。
(手順6)
70℃以下まで降温し、オートクレーブ内のニッケル粉を濾過および洗浄して回収した。
次に回収したニッケル粉から上記と同様に低密度な方から129gを分取し、上記の1回目の繰り返しと同じ方法(実施例2、手順2~6)で2回目の繰り返し(初回から3回目)の還元反応を行った。
(手順8)
次に回収したニッケル粉から上記と同様に156gを分取し、上記の1回目の繰り返しと同じ方法(実施例2、手順2~6)で3回目の繰り返し(初回から4回目)の還元反応を行った。
(手順9)
次に回収したニッケル粉から上記と同様に153gを分取し、上記の1回目の繰り返しと同じ方法(実施例2、手順2~6)で4回目の繰り返し(初回から5回目)の還元反応を行った。
(手順10)
次に回収したニッケル粉から上記と同様に158gを分取し、上記の1回目の繰り返しと同じ方法(実施例2、手順2~6)で5回目の繰り返し(初回から6回目)の還元反応を行った。
(手順11)
次に回収したニッケル粉から上記と同様に158gを分取し、上記の1回目の繰り返しと同じ方法(実施例2、手順2~6)で6回目の繰り返し(初回から7回目)の還元反応を行った。
さらに、メスシリンダーにニッケル粉を入れ、3分間タップした後に公知の方法で嵩密度を測定した。
図3に示されるように、還元反応の繰り返し回数を増加させても、粒子径(メディアン径)にはほとんど変化がなく、本発明の条件で100~160μmの粒径で、その嵩密度が1~4.5g/cm3の範囲のニッケル粉が得られることが分かった。
すなわち、4回のA操作の繰り返し、つまり初回操作の還元反応を入れて5回の還元処理のよる還元反応を行うことが適している。
これらより、粒子径の制御された高純度ニッケル粉を種晶として、還元反応を繰り返すことで、粒子径を一定範囲に制御し同時に内部が稠密した高密度なニッケル粉を製造できることが分かった。
図5に示す従来のニッケル粉の製造方法を参照し、種晶とした実施例1で用いたものと同じ粒径約1μmのニッケル粉22.5gに、硫酸ニッケル六水和物336g、硫酸アンモニウム330g、25%アンモニア水191mlに純水約440mlを加え、液量が1リットルになるよう調合した元液を用い、攪拌速度が500rpm未満となるような攪拌とした以外は、実施例1と同じ装置を用いて従来例に係るニッケル粉を作製した。
その得られたニッケル粉の嵩密度は1g/cm3未満であった。
Claims (2)
- ニッケルが5g/L以上、75g/L以下の濃度で含有されるニッケルアンミン錯体溶液を、前記錯体溶液1リットル当たり5g以上、200g以下の量の種結晶とともに攪拌機を有する加圧容器に入れて昇温し、次いで加圧容器内に水素ガスを吹き込んで水素による還元反応を施し、前記ニッケルアンミン錯体溶液中のニッケルをニッケル粉として得る初回操作後、
以下のA操作を少なくとも1回繰り返し行うことにより、メディアン径が100μm以上、160μm以下で、1~4.5g/cm3の嵩密度をもつニッケル粉を得ることを特徴とするニッケル粉の製造方法。
(A操作)
得られたニッケル粉を密度で選別して密度の小さいニッケル粉を採取し、
前記ニッケルが5g/L以上、75g/L以下の濃度で含有されるニッケルアンミン錯体溶液1リットルについて5g以上、200g以下の量となるように秤量した前記採取した密度の小さいニッケル粉を種結晶として前記ニッケルアンミン錯体溶液とともに攪拌機を有する加圧容器に入れて昇温し、次いで加圧容器内に水素ガスを吹き込んで水素による還元反応を施してニッケル粉を得る操作。 - 前記A操作が、4回以上繰り返して施され、前記初回操作と併せて合計5回以上の還元反応を施してニッケル粉を得ることを特徴とする請求項1記載のニッケル粉の製造方法。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16859808.4A EP3369500A4 (en) | 2015-10-26 | 2016-10-25 | METHOD FOR PRODUCING HIGH-DENSITY NICKEL POWDER |
| CN201680062378.1A CN108349012B (zh) | 2015-10-26 | 2016-10-25 | 高密度镍粉的制造方法 |
| US15/770,523 US10766072B2 (en) | 2015-10-26 | 2016-10-25 | Method for producing high density nickel powder |
| CA3003246A CA3003246C (en) | 2015-10-26 | 2016-10-25 | Method for producing high density nickel powder |
| AU2016344866A AU2016344866B2 (en) | 2015-10-26 | 2016-10-25 | Method for manufacturing high density nickel powder |
| PH12018500897A PH12018500897A1 (en) | 2015-10-26 | 2018-04-26 | Method for manufacturing high density nickel powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015210245A JP6202348B2 (ja) | 2015-10-26 | 2015-10-26 | 高密度ニッケル粉の製造方法 |
| JP2015-210245 | 2015-10-26 |
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| WO2017073578A1 true WO2017073578A1 (ja) | 2017-05-04 |
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| PCT/JP2016/081632 Ceased WO2017073578A1 (ja) | 2015-10-26 | 2016-10-25 | 高密度ニッケル粉の製造方法 |
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|---|---|
| US (1) | US10766072B2 (ja) |
| EP (1) | EP3369500A4 (ja) |
| JP (1) | JP6202348B2 (ja) |
| CN (1) | CN108349012B (ja) |
| AU (1) | AU2016344866B2 (ja) |
| CA (1) | CA3003246C (ja) |
| PH (1) | PH12018500897A1 (ja) |
| WO (1) | WO2017073578A1 (ja) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015115427A1 (ja) * | 2014-01-30 | 2015-08-06 | 国立大学法人高知大学 | ニッケル粉の製造方法 |
| WO2015146989A1 (ja) * | 2014-03-26 | 2015-10-01 | 国立大学法人高知大学 | ニッケル粉の製造方法 |
| JP5796696B1 (ja) * | 2015-01-22 | 2015-10-21 | 住友金属鉱山株式会社 | ニッケル粉の製造方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2734281A (en) * | 1953-03-09 | 1956-02-14 | kauffman | |
| CA970168A (en) * | 1972-10-20 | 1975-07-01 | Vladimir N. Mackiw | Production of nickel powder from impure nickel compounds |
| CN1305617C (zh) * | 2005-02-06 | 2007-03-21 | 金川集团有限公司 | 一种枝晶状镍粉的生产方法 |
| CN101428349B (zh) * | 2008-07-29 | 2011-06-22 | 张建玲 | 一种镍钴金属粉末的制备方法 |
| JP6099601B2 (ja) * | 2014-02-17 | 2017-03-22 | 国立大学法人高知大学 | ニッケル粉の製造方法 |
| JP5811376B2 (ja) * | 2014-02-17 | 2015-11-11 | 住友金属鉱山株式会社 | 水素還元ニッケル粉の製造に用いる種結晶の製造方法 |
| EP3108987A4 (en) * | 2014-02-21 | 2018-02-07 | Kochi University, National University Corporation | Method for producing nickel powder |
| EP3248720B1 (en) | 2015-01-22 | 2019-09-25 | Sumitomo Metal Mining Co., Ltd. | Method for producing nickel powder |
| WO2017063076A1 (en) * | 2015-10-15 | 2017-04-20 | Sherritt International Corporation | Hydrogen reduction of metal sulphate solutions for decreased silicon in metal powder |
-
2015
- 2015-10-26 JP JP2015210245A patent/JP6202348B2/ja active Active
-
2016
- 2016-10-25 US US15/770,523 patent/US10766072B2/en not_active Expired - Fee Related
- 2016-10-25 CN CN201680062378.1A patent/CN108349012B/zh not_active Expired - Fee Related
- 2016-10-25 EP EP16859808.4A patent/EP3369500A4/en not_active Withdrawn
- 2016-10-25 CA CA3003246A patent/CA3003246C/en not_active Expired - Fee Related
- 2016-10-25 WO PCT/JP2016/081632 patent/WO2017073578A1/ja not_active Ceased
- 2016-10-25 AU AU2016344866A patent/AU2016344866B2/en not_active Ceased
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2018
- 2018-04-26 PH PH12018500897A patent/PH12018500897A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015115427A1 (ja) * | 2014-01-30 | 2015-08-06 | 国立大学法人高知大学 | ニッケル粉の製造方法 |
| WO2015146989A1 (ja) * | 2014-03-26 | 2015-10-01 | 国立大学法人高知大学 | ニッケル粉の製造方法 |
| JP5796696B1 (ja) * | 2015-01-22 | 2015-10-21 | 住友金属鉱山株式会社 | ニッケル粉の製造方法 |
Non-Patent Citations (1)
| Title |
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| See also references of EP3369500A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3369500A4 (en) | 2019-03-20 |
| EP3369500A1 (en) | 2018-09-05 |
| US10766072B2 (en) | 2020-09-08 |
| CA3003246C (en) | 2019-08-27 |
| CN108349012A (zh) | 2018-07-31 |
| CN108349012B (zh) | 2019-08-06 |
| JP6202348B2 (ja) | 2017-09-27 |
| US20190054541A1 (en) | 2019-02-21 |
| PH12018500897A1 (en) | 2018-10-29 |
| CA3003246A1 (en) | 2017-05-04 |
| AU2016344866A1 (en) | 2018-05-10 |
| JP2017082269A (ja) | 2017-05-18 |
| AU2016344866B2 (en) | 2018-11-22 |
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