WO2015159846A1 - 炭素及び硫黄の濃度が低いニッケル粉の製造方法 - Google Patents

炭素及び硫黄の濃度が低いニッケル粉の製造方法 Download PDF

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Publication number
WO2015159846A1
WO2015159846A1 PCT/JP2015/061358 JP2015061358W WO2015159846A1 WO 2015159846 A1 WO2015159846 A1 WO 2015159846A1 JP 2015061358 W JP2015061358 W JP 2015061358W WO 2015159846 A1 WO2015159846 A1 WO 2015159846A1
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Prior art keywords
nickel powder
nickel
sulfur
carbon
powder
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Ceased
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PCT/JP2015/061358
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English (en)
French (fr)
Japanese (ja)
Inventor
佳智 尾崎
伸一 平郡
高石 和幸
修 池田
秀樹 大原
智暁 米山
陽平 工藤
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Sumitomo Metal Mining Co Ltd
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Sumitomo Metal Mining Co Ltd
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Priority to CN201580016554.3A priority Critical patent/CN106163707B/zh
Priority to AU2015247017A priority patent/AU2015247017B2/en
Priority to EP15779611.1A priority patent/EP3132874B1/en
Priority to US15/303,557 priority patent/US10500644B2/en
Priority to CA2945918A priority patent/CA2945918C/en
Publication of WO2015159846A1 publication Critical patent/WO2015159846A1/ja
Priority to PH12016502049A priority patent/PH12016502049A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/16Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • B22F9/26Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions using gaseous reductors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/16Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C19/00Alloys based on nickel or cobalt
    • C22C19/03Alloys based on nickel or cobalt based on nickel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/16Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • B22F2009/245Reduction reaction in an Ionic Liquid [IL]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2301/00Metallic composition of the powder or its coating
    • B22F2301/15Nickel or cobalt
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10Processes characterised by the sequence of their steps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00Aspects linked to processes or compositions used in powder metallurgy

Definitions

  • the present invention relates to a method for producing nickel powder with reduced impurities, particularly carbon and sulfur, from nickel powder produced from a nickel solution by a complex reduction method.
  • iron ore is roasted to reduce the form of sulfides and oxides to obtain ferronickel, which is an alloy with iron, and used as a raw material for stainless steel.
  • ferronickel which is an alloy with iron
  • impurities are separated from an acid solution dissolved with hydrochloric acid or sulfuric acid, and electrolytic nickel is collected to obtain electric nickel.
  • the acid-dissolved solution may be recovered as nickel salts such as nickel sulfate and nickel chloride and used for plating or battery materials.
  • Non-Patent Document 1 As a method for producing powdered nickel from the nickel salts, for example, there is a wet process shown in Non-Patent Document 1.
  • a complexing agent is mixed in a nickel sulfate aqueous solution and complexed to form a nickel ammine complex solution.
  • the solution is placed in a pressure vessel and sealed, and about 150 to 250 ° C.
  • the nickel ammine complex is reduced by hydrogen to produce nickel powder by a so-called complexing reduction method in which the temperature is raised and maintained and hydrogen gas is blown into it.
  • nickel powder is used as a positive electrode active material such as a paste or a nickel metal hydride battery
  • impurity elements such as carbon and sulfur cause gas generation, and thus reduction thereof is required.
  • Patent Document 1 discloses nickel sulfide ore obtained from wet refining of nickel oxide ore, scrap, or work-in-process. A method for providing a production method for producing a ferronickel raw material from a mixed sulfide containing benzene is shown.
  • Nickel sulfide or a mixed sulfide of nickel sulfide and cobalt sulfide is made into a slurry, and when nickel sulfide is dissolved by adding an oxidizing agent to the slurry, nickel is contained.
  • a deironing step in which an alkali is added to the concentrate obtained in the redissolving step to obtain a neutralized starch and a neutralized solution.
  • the present invention provides a production method for reducing the content of sulfur and carbon, which are impurities in nickel powder, in order to further improve the quality of nickel powder produced using a complexing reduction method.
  • the present invention separates sulfur and carbon by washing and roasting nickel powder produced from a nickel solution using a complex reduction method.
  • 1st invention of this invention is a manufacturing method of nickel powder with low carbon and sulfur concentration, Comprising: The complexation which produces the solution containing the nickel complex ion formed by adding a complexing agent to nickel sulfate aqueous solution The solution containing the nickel complex ions charged in the pressurized container is maintained at a liquid temperature of 150 to 250 ° C., and hydrogen gas is blown into the solution containing the nickel complex ions to perform hydrogen reduction.
  • This is a method for producing nickel powder having a low carbon and sulfur concentration.
  • a second invention of the present invention is a method for producing nickel powder having a low carbon and sulfur concentration, characterized in that the hydrogen concentration of the mixed gas in the roasting treatment of the first invention is 2 to 4% by weight. is there.
  • the third invention of the present invention is a method for producing nickel powder having a low carbon and sulfur concentration, characterized in that the temperature in the roasting treatment of the first and second inventions is 700 ° C. or higher and 1250 ° C. or lower. is there.
  • a fourth invention of the present invention is characterized in that the amount of water in the water washing treatment of the first to third inventions is 1 to 5 times the weight of the nickel powder. This is a method for producing nickel powder having a low concentration.
  • sulfur and carbon of impurity elements can be effectively removed from nickel powder produced using a complexing reduction method, and the quality of nickel powder can be greatly improved. It is.
  • nickel powder of the present invention It is a manufacturing flow figure of nickel powder of the present invention. It is a figure which shows the quantity of the sprinkling water in the washing
  • the present invention reduces the impurity concentration of nickel powder, which has been difficult until now, by making the atmosphere of roasting a mixed gas of hydrogen and nitrogen, maintaining the specific surface area of particles, and providing a cleaning process. It is possible.
  • the production method of the present invention will be described with reference to the drawings.
  • FIG. 1 is a production flow diagram showing a method for producing nickel powder of the present invention.
  • the present invention is characterized by the removal of impurities, particularly carbon and sulfur, contained in the nickel powder produced using the complex reduction method.
  • impurities particularly carbon and sulfur
  • the sample powder was prepared by adding ammonia and a dispersing agent as a complexing agent to a nickel-containing solution and complexing it to form a slurry containing nickel complex ions such as “nickel sulfate ammine complex”.
  • a slurry containing nickel complex ions such as “nickel sulfate ammine complex”.
  • hydrogen gas is blown into the slurry, and nickel complex ions in the slurry are reduced to produce a test powder of nickel powder by hydrogen reduction.
  • a conventionally known method can be used.
  • nickel powder or iron powder may be added as a seed crystal.
  • a feature of the present invention resides in a manufacturing method for removing impurities, particularly carbon and sulfur, contained in the powder from the nickel powder obtained above.
  • the method for removing carbon and sulfur components of impurities from the nickel powder according to the present invention involves subjecting the sample powder to a washing treatment using water for the sample powder, Nickel obtained by going through a "cleaning process” that removes water-soluble impurities in step and a “roasting process” that separates residual carbon and sulfur that could not be removed in the “cleaning process” by baking at high temperature.
  • the impurity concentration in the powder is reduced to produce high purity nickel powder. Therefore, the “washing process” and “roasting process” that characterize the present invention will be described in detail below.
  • the nickel powder of the sample powder is washed by a predetermined method to obtain a nickel powder having a reduced concentration of water-soluble impurities.
  • a specific cleaning method various methods can be used such as pouring water over nickel powder or raising the water temperature to about 90 ° C. It is also effective to perform cleaning in an atmosphere to which ultrasonic waves are applied.
  • the amount of washing water is preferably 1 to 5 times by weight ratio of the amount of nickel to be washed, and preferably 3 times or less. If the amount of washing water is less than 1 time, the amount of washing water may be insufficient, and the removal of carbon and sulfur may be incomplete. Moreover, even if it uses exceeding 5 times, a washing
  • the nickel powder from which most of the water-soluble sulfur and carbon have been removed in the washing step is roasted at a high temperature to separate the remaining sulfur and carbon, thereby obtaining a high-purity nickel powder.
  • the present invention does not use an oxidizing atmosphere or a completely inert atmosphere for the roasting process, but effectively removes sulfur and carbon in a reducing atmosphere containing a very small amount of hydrogen gas. I found what I could do and completed it.
  • the atmosphere in the roasting process of the present invention requires that the concentration of hydrogen gas in an inert atmosphere such as nitrogen be 2 to 4% by weight. If it is less than 2% by weight, the reaction is slow and a sufficient reduction effect is obtained. Absent. Further, a concentration exceeding 4% by weight is not preferable because the reducing power is too strong.
  • the roasting temperature is preferably 700 ° C. or more and 1250 ° C. or less, and preferably 1000 ° C. or less.
  • separation of carbon and sulfur becomes insufficient.
  • the higher the roasting temperature the more efficiently the separation, but the separation hardly increases even when roasting at a temperature exceeding 1000 ° C., especially when the temperature exceeds 1250 ° C., the sintering of nickel powder proceeds, It is not preferable because the solubility is lowered for the use of dissolving nickel powder in an acid.
  • Example powder Manufacture of nickel powder (sample powder)
  • a batch type autoclave with a capacity of 3 L was used as an experimental apparatus.
  • the starting liquid was adjusted, and this starting liquid was put in an inner cylinder can of an autoclave.
  • the temperature of the slurry in the inner cylinder can was increased to 185 ° C. using a heat medium heater.
  • hydrogen gas in the hydrogen cylinder is blown into the slurry at a flow rate of 4.0 liters / min, and the internal pressure is increased to 3.5 MPa while maintaining the hydrogen reduction reaction.
  • Gave rise to The reaction was carried out for 60 minutes from the start of blowing hydrogen gas, the supply of hydrogen gas was stopped after the lapse of time, and then cooled to room temperature with stirring.
  • the cooled inner cylinder can was taken out from the autoclave, and the slurry contained in the inner cylinder can was subjected to solid-liquid separation using a filter paper and Nutsche to recover nickel powder by a complex reduction method.
  • the recovered nickel powder was about 140 g.
  • the reduction rate calculated by dividing the amount of nickel contained in the nickel sulfate solution charged with the amount of nickel powder was about 83%.
  • the prepared nickel powder was used as a test powder, and 5 samples were sampled by 10 g.
  • each of the separated nickel powders is placed on a filter paper, and pure water with a liquid temperature of 50 ° C. is used as a spray water while sucking it using a vacuum pump, and the amount is changed to 100 ml, 75 ml, 50 ml, 30 ml, 10 ml.
  • Each was hung from above and washed with water. After washing with water, each nickel powder was taken out into a watch glass, put in a vacuum dryer and dried overnight to produce a nickel powder with reduced impurities.
  • nickel powders having a sulfur grade reduced from 0.8% by weight before washing to less than 0.1% by weight were produced.
  • what added 100 ml and 75 ml was the same quality as the case of 50 ml.
  • the temperature in the tubular furnace was raised and maintained at 700 ° C., 1000 ° C., 1200 ° C. and 1300 ° C., respectively.
  • the same nitrogen gas as the nitrogen gas substituted from the cylinder was held for 1 hour while supplying hydrogen gas to the tubular furnace at a flow rate of 40 ml / min and nitrogen gas at a flow rate of 960 ml / min.
  • the hydrogen gas concentration of the supplied gas is 3% by weight.
  • Nitrogen and hydrogen gas were supplied for a predetermined time, and then the supply gas was supplied at the same flow rate as nitrogen at the time of raising the temperature at a flow rate of 960 ml / min.
  • the furnace temperature was below 70 ° C., the tubular furnace was opened, the nickel powder inside was taken out and analyzed using ICP.
  • the analysis result shows that the sulfur quality, which was 0.8% by weight in the sample powder before washing, is reduced to 0.04% by weight in the washing process by roasting at 700 ° C. Was reduced to 0.02% by weight, and further reduced to 0.01% by weight by baking at 1000 ° C.
  • the carbon amount of 0.20% by weight was 0.07% by weight after the washing step, 0.05% by weight at 700 ° C. and 0% at 1000 ° C. Reduced to 0.02 wt%.
  • the quality was the same as that in the case of 1000 ° C, but the nickel powders were lightly sintered and needed to be crushed.
  • the case of 1300 degreeC it was not suitable for the use which nickel powder sintered firmly and melt
  • Example 2 [Production of test powder] 10 g of nickel powder produced using hydrogen gas in the same manner as in Example 1 was collected to obtain a sample powder of nickel powder.
  • the nickel powder had a sulfur quality of 0.75 wt% and a carbon quality of 0.06 wt%.
  • this nickel powder was put into a 100 ml capacity beaker, and 50 ml of 90 ° C. pure water was added thereto. Thereafter, using a stirrer and a heater, the liquid temperature was kept at 90 ° C., and the mixture was stirred at a rotation speed of 400 rpm for 1 hour. After stirring, the mixture was filtered using filter paper and dried using the same vacuum dryer as in Example 1. When the sulfur and carbon of this nickel powder were analyzed, the sulfur quality was reduced to 0.05 wt% and the carbon quality was reduced to 0.02 wt%. Table 2 shows changes in sulfur quality and carbon quality in Example 2.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Battery Electrode And Active Subsutance (AREA)
PCT/JP2015/061358 2014-04-15 2015-04-13 炭素及び硫黄の濃度が低いニッケル粉の製造方法 Ceased WO2015159846A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN201580016554.3A CN106163707B (zh) 2014-04-15 2015-04-13 碳及硫的浓度低的镍粉的制造方法
AU2015247017A AU2015247017B2 (en) 2014-04-15 2015-04-13 Method for Producing Nickel Powder for Reducing Carbon Concentration and Low Sulfur Concentration Contained in Nickel Powder
EP15779611.1A EP3132874B1 (en) 2014-04-15 2015-04-13 Method for producing nickel powder having low carbon concentration and low sulfur concentration
US15/303,557 US10500644B2 (en) 2014-04-15 2015-04-13 Method for producing nickel powder having low carbon concentration and low sulfur concentration
CA2945918A CA2945918C (en) 2014-04-15 2015-04-13 Method for producing nickel powder having low carbon concentration and low sulfur concentration
PH12016502049A PH12016502049A1 (en) 2014-04-15 2016-10-14 Method for producing nickel powder having low carbon concentration and low sulfur concentration

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2014083886 2014-04-15
JP2014-083886 2014-04-15
JP2014167904A JP6406613B2 (ja) 2014-04-15 2014-08-20 含有する炭素及び硫黄の濃度を低減するニッケル粉の製造方法
JP2014-167904 2014-08-20

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US (1) US10500644B2 (enExample)
EP (1) EP3132874B1 (enExample)
JP (1) JP6406613B2 (enExample)
CN (1) CN106163707B (enExample)
AU (1) AU2015247017B2 (enExample)
CA (1) CA2945918C (enExample)
PH (1) PH12016502049A1 (enExample)
WO (1) WO2015159846A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108699627A (zh) * 2016-02-22 2018-10-23 住友金属矿山株式会社 镍粉的制造方法
CN109153081A (zh) * 2016-05-30 2019-01-04 住友金属矿山株式会社 镍粉的制造方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6819087B2 (ja) * 2016-06-21 2021-01-27 住友金属鉱山株式会社 ニッケル粉の製造方法、ニッケル粉の製造装置
CN107746951A (zh) * 2017-09-26 2018-03-02 北京矿冶研究总院 一种硫酸盐溶液中镍的分离方法
EP3702330A4 (en) * 2017-10-26 2020-12-23 Sumitomo Metal Mining Co., Ltd. COMPOSITE NICKEL OXIDE AND PROCESS FOR THE PRODUCTION OF LITHIUM-NICKEL COMPOSITE OXIDE

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JPS4974160A (enExample) * 1972-10-20 1974-07-17
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JPH10509213A (ja) * 1994-11-14 1998-09-08 ザ ウェスターム コーポレイション ミクロンサイズのニッケル金属粉末およびその製造方法
JP2003514111A (ja) * 1999-10-29 2003-04-15 ダブリュエムシー・リソーシィズ・リミテッド ニッケル粉末の脱硫
WO2008001741A1 (en) * 2006-06-27 2008-01-03 Ishihara Sangyo Kaisha, Ltd. Nickel fine particle, method for producing the same, and fluid composition using the same

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108699627A (zh) * 2016-02-22 2018-10-23 住友金属矿山株式会社 镍粉的制造方法
CN109153081A (zh) * 2016-05-30 2019-01-04 住友金属矿山株式会社 镍粉的制造方法
EP3466571A4 (en) * 2016-05-30 2020-01-22 Sumitomo Metal Mining Co., Ltd. PROCESS FOR PRODUCING NICKEL POWDER

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CN106163707A (zh) 2016-11-23
CN106163707B (zh) 2018-09-07
CA2945918A1 (en) 2015-10-22
US10500644B2 (en) 2019-12-10
EP3132874A4 (en) 2018-01-10
EP3132874B1 (en) 2019-10-23
AU2015247017B2 (en) 2019-09-12
JP2015212411A (ja) 2015-11-26
JP6406613B2 (ja) 2018-10-17
EP3132874A1 (en) 2017-02-22
US20170043403A1 (en) 2017-02-16
PH12016502049B1 (en) 2017-01-09
PH12016502049A1 (en) 2017-01-09
AU2015247017A1 (en) 2016-11-03
CA2945918C (en) 2020-07-21

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