CN109052439A - A kind of preparation method of high quality nano magnesium hydroxide aqueous slurry - Google Patents
A kind of preparation method of high quality nano magnesium hydroxide aqueous slurry Download PDFInfo
- Publication number
- CN109052439A CN109052439A CN201810901677.0A CN201810901677A CN109052439A CN 109052439 A CN109052439 A CN 109052439A CN 201810901677 A CN201810901677 A CN 201810901677A CN 109052439 A CN109052439 A CN 109052439A
- Authority
- CN
- China
- Prior art keywords
- magnesium hydroxide
- nano
- quality
- powder
- aqueous slurry
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/14—Magnesium hydroxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Geology (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The present invention provides a kind of preparation method of high quality nano magnesium hydroxide aqueous slurry.Low-quality mine is chosen first goes out magnesium hydroxide powder, depolymerizing agent is blended in solid phase using blender with the magnesium hydroxide powder again, after stirring, the controllable nanoscale magnesium powder body of uniform particle diameter, size is prepared in 400 ~ 700 DEG C of high-temperature calcination in air atmosphere.Then, using this magnesium oxide powder as raw material, nano-sized magnesium hydroxide precursor liquid is prepared by hydrothermal synthesis method with sodium carbonate, ammonium chloride, deionized water, is washed, is centrifuged to get high-purity high solids content nano-sized magnesium hydroxide magma.This magma and magnesium hydroxide dispersant special are subjected to aqueous milled processed in nano-level grinder, the nano-sized magnesium hydroxide aqueous slurry for the scattered property high-quality that can secure satisfactory grades.The grade of raw ore product can be improved in this method, and can improve the application range of magnesium hydroxide products.
Description
Technical field
The invention belongs to the preparation technical fields of functional material, concretely relate to a kind of high quality nano magnesium hydroxide
The preparation method of aqueous slurry.
Background technique
Magnesium hydroxide has typical nanometer sheet layer structure, not soluble in water, is dissolved in acid and ammonium salt solution.Nanoscale product
With purity is high, partial size is small, can carry out the excellent properties such as in-stiu coating modification, can spread more evenly across in PA, PP, ABS, PVC
In equal rubber, plastic product, it is widely used in the high-end products such as rubber-plastic elastomer, high-grade CABLE MATERIALS, household electrical appliance.It can be with
The performances such as the fire-retardant of material, suppression cigarette, antidrip are significantly improved in the case where having little influence on use intensity.
Using existing method, have very with traditional chemistry and chemical industry equipment come the nano-sized magnesium hydroxide for preparing high-quality
Big difficulty is unable to ensure every because the distribution of the product of industrialized production its particle size, partial size and form is more difficult to control
The identical in quality of product is criticized, while being reunited cannot effectively restrain nanoparticle during production, so that there are products
Primary particle size can control in a dimension in 100nm hereinafter, and aggregate particle size has reached several microns even tens microns, because
This, preparation method at this stage is it is not possible that these problems of comprehensively solve.
This patent takes the existence form of liquid aqueous slurry on the basis of keeping hydroxide nanoparticle characteristic, provides
It is a kind of to improve the grade of raw ore downstream product and improve the preparation method of the quality of magnesium hydroxide products.Use solution
Poly- agent reduces the degree of aggregation of powder, forms modified nano magnesia, while it is bright using hydrothermal synthesis to prepare lamellar structure
Thin nano-sized magnesium hydroxide magma, then the stability of nano-sized magnesium hydroxide slurry is improved by Nano surface treatment, it mentions significantly
The application range of product is risen.
Summary of the invention
It is an object of the invention to overcome the unstable easy reunion of quality existing for prior art preparation nano-sized magnesium hydroxide
Problem, provide a kind of preparation method of high-quality magnesium hydroxide slurry with stable nano-lamellar structure.This legal system
Standby nano pulp has good stability.
To reach above-mentioned expected purpose, the present invention adopts the following technical scheme:
A kind of preparation method of high quality nano magnesium hydroxide aqueous slurry, which is characterized in that by first going out low-quality mine
Magnesium hydrate powder is prepared into the nanometer magnesia powder of size tunable, and hydrothermal synthesis method and nano-milled technology is recycled to make
Standby high-quality high solids content nano-sized magnesium hydroxide slurry, the technique include the following steps:
A. low-quality mine is gone out magnesium hydroxide powder to be blended in solid phase using blender with depolymerizing agent, after stirring；
B. by mixed-powder made from step a, uniform particle diameter, big is prepared in 400 ~ 700 DEG C of high-temperature calcination in air atmosphere
Small controllable nanoscale magnesium powder body；
C. using nanoscale magnesium powder body made from step b as raw material, pass through hydro-thermal with sodium carbonate, ammonium chloride, deionized water
Synthetic method is prepared into nano-sized magnesium hydroxide precursor liquid, and washing is centrifuged to get high-purity high solids content nano-sized magnesium hydroxide magma；
D. magma made from step c and magnesium hydroxide dispersant special are subjected to aqueous milled processed in nano-level grinder, it can
The nano-sized magnesium hydroxide aqueous slurry for the scattered property high-quality that secures satisfactory grades.
The low-quality mine goes out magnesium hydroxide powder, the mass ratio of depolymerizing agent is 1:0.01 ~ 0.1, the depolymerizing agent
For one of diethanol amine, ethylene glycol, various amides, NaNO2 or combinations thereof.
The nanoscale magnesium powder body, sodium carbonate, ammonium chloride, deionized water mass ratio be 0.2 ~ 0.6:0.01 ~
0.05:0.01 ~ 0.05:1.
The magnesium hydroxide dispersant special be BYK190, BYK106, BYK182, BYK184, the modest 904S of moral,
One of MOK5032 or combinations thereof, wherein the mass ratio of nano-sized magnesium hydroxide magma and dispersing agent is 1:0.01~0.2.
The size of the nano-level grinder abrasive media zirconium pearl is 0.4mm, 0.2mm, 0.1mm or 0.05mm.
The present invention is using the process program of optimization, the dosage of the low-quality magnesium hydroxide raw material of strict control and depolymerizing agent and adds
Enter step, prepare the magnesium oxide powder of high-purity first, then improves the nanometer of magnesium hydroxide significantly by hydrothermal synthesis method
Lamellar structure, hence it is evident that improve nano-sized magnesium hydroxide material particle agglomeration phenomenon in water, increase the homogeneity and effectively of partial size
Property.Nano-sized magnesium hydroxide slurry prepared by the present invention has good stability.
Detailed description of the invention
The SEM of Fig. 1 case study on implementation sample 1 schemes.
Specific embodiment
With reference to the accompanying drawings and examples, further description of the specific embodiments of the present invention.Following embodiment is only
For clearly illustrating technical solution of the present invention, and not intended to limit the protection scope of the present invention.
The present invention is described in detail below by specific example, but protection scope of the present invention is not only restricted to these
Examples of implementation.
Embodiment 1: the low-quality mine of 100g is gone out into magnesium hydroxide powder and is total in solid phase using blender with 1g diethanol amine
Mixed, after stirring, the controllable nanoscale of uniform particle diameter, size is prepared in 400 DEG C of high-temperature calcination in air atmosphere
Magnesium oxide powder；Again using this nanoscale magnesium powder body 20g as raw material, with 1g sodium carbonate, 1g ammonium chloride, 100g deionized water
It is prepared into nano-sized magnesium hydroxide precursor liquid by hydrothermal synthesis method, is washed, is centrifuged to get high-purity high solids content nanometer hydroxide
Magnesium magma；This magma of 100g and 1g dispersant special BYK190 are subjected to aqueous grinding in the nano-level grinder of 0.4mm zirconium pearl
Processing, the nano-sized magnesium hydroxide aqueous slurry for the scattered property high-quality that can secure satisfactory grades.
Embodiment 2: being gone out magnesium hydroxide powder for the low-quality mine of 100g and be blended in solid phase using blender with 5g ethylene glycol,
After stirring, the controllable nanoscale oxygen of uniform particle diameter, size is prepared in 500 DEG C of high-temperature calcination in air atmosphere
Change magnesium powder body；It is logical with 3g sodium carbonate, 3g ammonium chloride, 100g deionized water again using this nanoscale magnesium powder body 40g as raw material
It crosses hydrothermal synthesis method and is prepared into nano-sized magnesium hydroxide precursor liquid, wash, be centrifuged to get high-purity high solids content nano-sized magnesium hydroxide
Magma；This magma of 100g and the modest 904S of 20g dispersant special moral are subjected to aqueous grinding in the nano-level grinder of 0.2mm zirconium pearl
Processing, the nano-sized magnesium hydroxide aqueous slurry for the scattered property high-quality that can secure satisfactory grades.
Embodiment 3: the low-quality mine of 100g is gone out into magnesium hydroxide powder and 10g polyacrylamide in solid phase using blender
It is blended, after stirring, the controllable nanometer of uniform particle diameter, size is prepared in 700 DEG C of high-temperature calcination in air atmosphere
Grade magnesium oxide powder；Again using this nanoscale magnesium powder body 60g as raw material, with 5g sodium carbonate, 5g ammonium chloride, 100g deionization
Water is prepared into nano-sized magnesium hydroxide precursor liquid by hydrothermal synthesis method, and washing is centrifuged to get high-purity high solids content nanometer hydrogen-oxygen
Change magnesium magma；This magma of 100g is carried out in the nano-level grinder of 0.05mm zirconium pearl with 20g dispersant special MOK5032 aqueous
Milled processed, the nano-sized magnesium hydroxide aqueous slurry for the scattered property high-quality that can secure satisfactory grades.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of preparation method of high quality nano magnesium hydroxide aqueous slurry, which is characterized in that by first by low-quality mine
Magnesium hydrate powder is prepared into the nanometer magnesia powder of size tunable out, and hydrothermal synthesis method and nano-milled technology is recycled
High-quality high solids content nano-sized magnesium hydroxide slurry is prepared, which includes the following steps:
A. low-quality mine is gone out magnesium hydroxide powder to be blended in solid phase using blender with depolymerizing agent, after stirring；
B. by mixed-powder made from step a, uniform particle diameter, big is prepared in 400 ~ 700 DEG C of high-temperature calcination in air atmosphere
Small controllable nanoscale magnesium powder body；
C. using nanoscale magnesium powder body made from step b as raw material, pass through hydro-thermal with sodium carbonate, ammonium chloride, deionized water
Synthetic method is prepared into nano-sized magnesium hydroxide precursor liquid, and washing is centrifuged to get high-purity high solids content nano-sized magnesium hydroxide magma；
D. magma made from step c and magnesium hydroxide dispersant special are subjected to aqueous milled processed in nano-level grinder, it can
The nano-sized magnesium hydroxide aqueous slurry for the scattered property high-quality that secures satisfactory grades.
2. a kind of preparation method of high quality nano magnesium hydroxide aqueous slurry according to claim 1, which is characterized in that
Low-quality mine described in step a goes out magnesium hydroxide powder, the mass ratio of depolymerizing agent is 1:0.01 ~ 0.1, and the depolymerizing agent is
One of diethanol amine, ethylene glycol, various amides, NaNO2 or combinations thereof.
3. a kind of preparation method of high quality nano magnesium hydroxide aqueous slurry according to claim 1, which is characterized in that
Nanoscale magnesium powder body described in step c, sodium carbonate, ammonium chloride, deionized water mass ratio be 0.2 ~ 0.6:0.01 ~
0.05:0.01 ~ 0.05:1.
4. a kind of preparation method of high quality nano magnesium hydroxide aqueous slurry according to claim 1, which is characterized in that
Magnesium hydroxide dispersant special described in step d is BYK190, BYK106, BYK182, BYK184, moral modest 904S, MOK5032
One of or combinations thereof, wherein the mass ratio of nano-sized magnesium hydroxide magma and dispersing agent is 1:0.01~0.2.
5. a kind of preparation method of high quality nano magnesium hydroxide aqueous slurry according to claim 1, which is characterized in that
In step d, the size of the nano-level grinder abrasive media zirconium pearl is 0.4mm, 0.2mm, 0.1mm or 0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810901677.0A CN109052439A (en) | 2018-08-09 | 2018-08-09 | A kind of preparation method of high quality nano magnesium hydroxide aqueous slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810901677.0A CN109052439A (en) | 2018-08-09 | 2018-08-09 | A kind of preparation method of high quality nano magnesium hydroxide aqueous slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109052439A true CN109052439A (en) | 2018-12-21 |
Family
ID=64678859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810901677.0A Pending CN109052439A (en) | 2018-08-09 | 2018-08-09 | A kind of preparation method of high quality nano magnesium hydroxide aqueous slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109052439A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386716A (en) * | 2014-11-03 | 2015-03-04 | 苏州市泽镁新材料科技有限公司 | Method for preparing nano-magnesium oxide |
| CN104445297A (en) * | 2014-11-03 | 2015-03-25 | 苏州市泽镁新材料科技有限公司 | Preparation method of nanometer magnesia |
| CN107344727A (en) * | 2017-06-09 | 2017-11-14 | 苏州市泽镁新材料科技有限公司 | A kind of preparation method of hexagonal plate nano-sized magnesium hydroxide material |
-
2018
- 2018-08-09 CN CN201810901677.0A patent/CN109052439A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386716A (en) * | 2014-11-03 | 2015-03-04 | 苏州市泽镁新材料科技有限公司 | Method for preparing nano-magnesium oxide |
| CN104445297A (en) * | 2014-11-03 | 2015-03-25 | 苏州市泽镁新材料科技有限公司 | Preparation method of nanometer magnesia |
| CN107344727A (en) * | 2017-06-09 | 2017-11-14 | 苏州市泽镁新材料科技有限公司 | A kind of preparation method of hexagonal plate nano-sized magnesium hydroxide material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103803644B (en) | A kind of preparation method controlling titanium-based nano material product form and pattern | |
| CN104556176B (en) | A kind of preparation method of aluminum oxide nanoparticle | |
| CN106470941A (en) | Prepare the continuation method of original graphite alkene nanometer sheet | |
| CN106186008B (en) | Boehmite for lithium battery diaphragm coating and hydrothermal preparation method thereof | |
| Chen et al. | Development of polystyrene/polyaniline/ceria (PS/PANI/CeO2) multi-component abrasives for photochemical mechanical polishing/planarization applications | |
| CN114873637A (en) | Nano-octadecyl SrTiO 3 And preparation method and application thereof | |
| Zhaogang et al. | Preparation of large particle rare earth oxides by precipitation with oxalic acid | |
| CN109942012B (en) | Nanoscale flaky boehmite and preparation method thereof | |
| WO2013020430A1 (en) | Method for preparing high dispersion rutile product | |
| CN104098932A (en) | Preparation method for white mineral-titanium dioxide composite powder pigment | |
| CN109133123A (en) | A kind of preparation method of high quality nano magnesium hydroxide powder | |
| CN107304059B (en) | A kind of γ-Al2O3Nanometer chip and preparation method thereof | |
| KR102571300B1 (en) | Flaky titanate and method for production thereof, and use thereof | |
| CN101348258B (en) | Preparation of superfine nano-kaoline | |
| CN108190935B (en) | Preparation method of strip-shaped and sheet-shaped calcium carbonate ultrafine particles | |
| CN109052439A (en) | A kind of preparation method of high quality nano magnesium hydroxide aqueous slurry | |
| CN110407212B (en) | High-dispersity nano carbonate gel as well as preparation method and application thereof | |
| CN103301763B (en) | Method for dispersing nano calcium carbonate powder material in aqueous solution | |
| CN109906202B (en) | Fine-particle composite metal hydroxide, fired product thereof, process for producing the same, and resin composition thereof | |
| JP2012193052A (en) | Organic solvent dispersion alumina sol, and method for producing the same | |
| CN102583519B (en) | Method for manufacturing zinc titanate based micro-nano crystalline powder | |
| Li et al. | Facile solution-based synthesis and optical properties of Co3O4 Nanoparticles at low-temperature | |
| Akter et al. | Hydrophilic ionic liquid-assisted control of the size and morphology of ZnO nanoparticles prepared by a chemical precipitation method | |
| Qiu et al. | Viscosity of kaolin slurries: Effects of dispersant and urea-intercalation | |
| CN104556242A (en) | Preparation method of nanometer alpha-Fe2O3 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181221 |