CN102528073A - Non-ferromagnetic nickel powder and preparation method for same - Google Patents
Non-ferromagnetic nickel powder and preparation method for same Download PDFInfo
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- CN102528073A CN102528073A CN2012100350913A CN201210035091A CN102528073A CN 102528073 A CN102528073 A CN 102528073A CN 2012100350913 A CN2012100350913 A CN 2012100350913A CN 201210035091 A CN201210035091 A CN 201210035091A CN 102528073 A CN102528073 A CN 102528073A
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Abstract
The invention provides nickel powder and a preparation method for the same. The metallic nickel powder is non-ferromagnetic and is prepared by a simple liquid-phase reduction method. The preparation method includes: evenly mixing nickel salt solution and surfactant in a reaction vessel and adding strong alkali solution under a stirring condition to generate apple green nickel hydroxide deposits; heating the reaction vessel in a constant-temperature heating jacket or a water-bath heating constant temperature bath under the stirring condition, adding reducing agents into the reaction vessel after rising to reaction temperature and controlling the reaction temperature for reaction; and after complete reaction, preserving heat for half an hour, and pouring out, filtering, washing and drying reaction liquid to obtain a finished product. The nickel powder and the preparation method can be used for providing material support to improve product quality in a hard alloy industry and a non-magnetic mould industry.
Description
Technical field
The present invention relates to a kind of nonferromagnetic nickel powder and preparation method thereof, belong to the metal powder material field.
Background technology
Metallic nickel mainly is used for making stainless steel and other corrosion-resisant alloies; Like nickel steel, nickel-chromium steel and various non-ferrous alloy, also make hydrogenation catalyst and be used for ceramic, extraordinary chemical ware, electronic circuit, glass and green and nickel compound preparation or the like.As a rule, metallic nickel is a kind of ferromagnetic typical metal that has at normal temperatures.Ferromagnetism is meant that the magnetic moment of adjacent atom in the material or ion is because their interaction and in some zone, roughly arranging by same direction; When the magnetic field intensity that is applied increased, the magnetic moment degree of aligning of closing in these zones can be increased to the phenomenon of a certain limiting value thereupon; And simple image point says that magnesium-yttrium-transition metal (like iron) and their magnetic that alloy and compound had just are called ferromagnetism.
When material grains is reduced to nanoscale, the constitute particle be by atom few in number, the atomic group of molecule be combined into, micel so that atom number reaches several ten thousand ultramicron shell structurre.Particle structure under this yardstick has determined it to have special small-size effect, skin effect, quantum size effect and macro quanta tunnel effect just, thereby shows some special nature.Find in the research that when the particle diameter of nickel powder is little to a certain degree the time, its ferromagnetism complete obiteration becomes the nonferromagnetic powder.
A kind of nonferromagnetic nickel powder provided by the invention and preparation method are for cemented carbide industry, no magnetic die industry lifting product quality provide materials for support.
Summary of the invention
The object of the present invention is to provide simple nonferromagnetic nickel powder of a kind of process for producing and preparation method thereof.
The present invention relates to a kind of metallic nickel powder, it is characterized in that this metallic nickel powder has nonferromagnetic, and attend institute's metallic nickel powder by a kind of simple liquid phase reduction preparation.
Technical scheme of the present invention comprises following processing step:
stirs down reaction vessel to be placed in thermostatic type heat tracing cover or the water-bath heated constant temperature groove and heats; After rising to reaction temperature; Add reducing agent, the control reaction temperature is reacted;
After
question response is complete; Be incubated half an hour; Reactant liquor is poured out, filtered, washing; Drying obtains product.
Nickel salt among the preparation technology of above-mentioned nonferromagnetic nickel powder is at least a in nickelous sulfate, nickel acetate, nickel nitrate, nickel chloride, nickel oxalate, nickel fluoride, nickelous bromide, the nickel formate, and its solution concentration scope is 0.01 ~ 2 mol/L;
Surfactant among the preparation technology of above-mentioned nonferromagnetic nickel powder is at least a in serial of alkyl polyglycoside (APG), glucamide (APA), alcohol ether carboxylate (AEC), amide ether carboxylate (AAEC), polyvinylpyrrolidone (PVP), tween series, sapn, and its concentration range is 0.01 ~ 1mol/L;
Highly basic among the preparation technology of above-mentioned nonferromagnetic nickel powder is at least a in NaOH, the potassium hydroxide, and its solution concentration scope is 0.1 ~ 5mol/L;
Reducing agent among the preparation technology of above-mentioned nonferromagnetic nickel powder is at least a in hydrazine hydrate (hydrazine hydrate), the ortho phosphorous acid sodium solution, and reducing agent is that the mode through continuous dropping adds, and its concentration is 0.1 ~ 3mol/L;
Range of reaction temperature among the preparation technology of above-mentioned nonferromagnetic nickel powder is 60 ~ 100 ℃.
The specific embodiment
Embodiment 1:
In four-necked bottle, 5.2 gram six hydration nickel sulfates and 1mL Tween 80 are dissolved in 100mL water, stirring condition adds the sodium hydroxide solution 10mL of 1mol/L down, generates the green nickel hydroxide precipitate of apple; Four-necked bottle placed in 90 ℃ of water-bath heated constant temperature grooves heats, treat that solution temperature reaches 80 ℃ in the four-necked bottle after, the mode through continuous dropping adds 5mL hydrazine hydrate, initiation reaction; After question response is complete, be incubated half an hour, reactant liquor is poured out, filter, washing, drying obtains the nonferromagnetic nickel powder.
Embodiment 2:
In four-necked bottle, 4.8 gram Nickel dichloride hexahydrates and 1mL Tween 80 are dissolved in 100mL water, stirring condition adds the potassium hydroxide solution 10mL of 1mol/L down, generates the green nickel hydroxide precipitate of apple; Four-necked bottle placed in 95 ℃ of water-bath heated constant temperature grooves heats, treat that solution temperature reaches 85 ℃ in the four-necked bottle after, the mode through continuous dropping adds 5mL hydrazine hydrate, initiation reaction; After question response is complete, be incubated half an hour, reactant liquor is poured out, filter, washing, drying obtains the nonferromagnetic nickel powder.
Embodiment 3:
In four-necked bottle, 5.2 gram six hydration nickel sulfates and 1.5mL span 40 are dissolved in 100mL water, stirring condition adds the sodium hydroxide solution 10mL of 1mol/L down, generates the green nickel hydroxide precipitate of apple; Four-necked bottle placed in 90 ℃ of water-bath heated constant temperature grooves heats, treat that solution temperature reaches 80 ℃ in the four-necked bottle after, the mode through continuous dropping adds 5mL hydrazine hydrate, initiation reaction; After question response is complete, be incubated half an hour, reactant liquor is poured out, filter, washing, drying obtains the nonferromagnetic nickel powder.
Embodiment 4:
In four-necked bottle, 5.2 gram six hydration nickel sulfates and 0.5 gram PVP are dissolved in 100mL water, stirring condition adds the sodium hydroxide solution 10mL of 1mol/L down, generates the green nickel hydroxide precipitate of apple; Four-necked bottle placed in 90 ℃ of water-bath heated constant temperature grooves heats, treat that solution temperature reaches 80 ℃ in the four-necked bottle after, add the ortho phosphorous acid sodium solution 5mL of 0.2mol/L, initiation reaction through the mode of continuous dropping; After question response is complete, be incubated half an hour, reactant liquor is poured out, filter, washing, drying obtains the nonferromagnetic nickel powder.
Embodiment 5:
In four-necked bottle, 4.8 gram Nickel dichloride hexahydrates and 0.5 gram PVP are dissolved in 100mL water, stirring condition adds the potassium hydroxide solution 10mL of 1mol/L down, generates the green nickel hydroxide precipitate of apple; Four-necked bottle placed in 95 ℃ of water-bath heated constant temperature grooves heats, treat that solution temperature reaches 85 ℃ in the four-necked bottle after, the mode through continuous dropping adds 5mL hydrazine hydrate, initiation reaction; After question response is complete, be incubated half an hour, reactant liquor is poured out, filter, washing, drying obtains the nonferromagnetic nickel powder.
Claims (6)
1. nonferromagnetic nickel powder and preparation method, it is characterized in that: certain density nickel salt solution and surfactant are mixed in reaction vessel, and stirring condition adds certain density strong base solution down and generates the green nickel hydroxide precipitate of apple; Stir down reaction vessel to be placed in thermostatic type heat tracing cover or the water-bath heated constant temperature groove and heat, rise to reaction temperature after, add reducing agent, the control reaction temperature is reacted; After question response is complete, be incubated half an hour, reactant liquor is poured out, filter, washing, drying obtains product.
2. according to described a kind of nonferromagnetic nickel powder of claim 1 and preparation method; It is characterized in that described nickel salt is at least a in nickelous sulfate, nickel acetate, nickel nitrate, nickel chloride, nickel oxalate, nickel fluoride, nickelous bromide, the nickel formate, its solution concentration scope is 0.01 ~ 2 mol/L.
3. according to described a kind of nonferromagnetic nickel powder of claim 1 and preparation method; It is characterized in that surfactant is at least a in serial of alkyl polyglycoside (APG), glucamide (APA), alcohol ether carboxylate (AEC), amide ether carboxylate (AAEC), polyvinylpyrrolidone (PVP), tween series, sapn, its concentration range is 0.01 ~ 1mol/L.
4. according to described a kind of nonferromagnetic nickel powder of claim 1 and preparation method, it is characterized in that highly basic is at least a in NaOH, the potassium hydroxide, its solution concentration scope is 0.1 ~ 5mol/L.
5. according to described a kind of nonferromagnetic nickel powder of claim 1 and preparation method; It is characterized in that reducing agent is at least a in hydrazine hydrate (hydrazine hydrate), the ortho phosphorous acid sodium solution; Reducing agent is that the mode through continuous dropping adds, and its concentration is 0.1 ~ 3mol/L.
6. according to described a kind of nonferromagnetic nickel powder of claim 1 and preparation method, it is characterized in that range of reaction temperature is 60 ~ 100 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100350913A CN102528073A (en) | 2012-02-16 | 2012-02-16 | Non-ferromagnetic nickel powder and preparation method for same |
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| CN2012100350913A CN102528073A (en) | 2012-02-16 | 2012-02-16 | Non-ferromagnetic nickel powder and preparation method for same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575707A (en) * | 2018-11-26 | 2019-04-05 | 深圳市广田环保涂料有限公司 | Aqueous dual-component fluorine carbonaceous conductive anti-decaying paint and preparation method thereof and application method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223919A (en) * | 1998-12-29 | 1999-07-28 | 成都开飞高能化学工业有限公司 | Method for producing superfine sphere metallic nickel powder |
| CN1872460A (en) * | 2006-03-17 | 2006-12-06 | 金川集团有限公司 | Method for preparing round nickel powder in submicro |
-
2012
- 2012-02-16 CN CN2012100350913A patent/CN102528073A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223919A (en) * | 1998-12-29 | 1999-07-28 | 成都开飞高能化学工业有限公司 | Method for producing superfine sphere metallic nickel powder |
| CN1872460A (en) * | 2006-03-17 | 2006-12-06 | 金川集团有限公司 | Method for preparing round nickel powder in submicro |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575707A (en) * | 2018-11-26 | 2019-04-05 | 深圳市广田环保涂料有限公司 | Aqueous dual-component fluorine carbonaceous conductive anti-decaying paint and preparation method thereof and application method |
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Application publication date: 20120704 |