CN101759379A - Method for activating dolomite calcined powder and application thereof - Google Patents
Method for activating dolomite calcined powder and application thereof Download PDFInfo
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- CN101759379A CN101759379A CN201010039600A CN201010039600A CN101759379A CN 101759379 A CN101759379 A CN 101759379A CN 201010039600 A CN201010039600 A CN 201010039600A CN 201010039600 A CN201010039600 A CN 201010039600A CN 101759379 A CN101759379 A CN 101759379A
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- Prior art keywords
- calcined powder
- dolomite calcined
- dolomite
- activating
- water
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Abstract
The invention discloses a method for activating dolomite calcined powder and an application thereof. The activating dolomite calcined powder is prepared by using the dolomite calcined powder as the raw materials and adding water into the powder. The method realizes the activation to the dolomite calcined powder by increasing the specific surface area thereof in the manner of treating the dolomite calcined powder with hot water. The method comprises the steps of: adding 1 weight part of dolomite calcined powder and 5 to 50 weight parts of water into a hydro-thermal reaction kettle, activating for 1 to 5 hours at a reaction temperature of 100 to 200 DEG C, cooling, filtering, washing with water, and drying so as to activate the dolomite calcined powder. The method of the invention has the advantages of simple equipment, easy operation, short reaction time and obvious activating effect and widens the scope of applying the dolomite calcined powder. The dolomite calcined powder activated by using the method of the invention can be applied to the fields of sewage treatment, coating antibiosis, and the like.
Description
Technical field
The present invention relates to activation method of a kind of dolomite calcined powder and uses thereof.
Background technology
Dolomite is very abundant as each provinces and regions and the standing stock that one of main source of MgO is distributed widely in China, and quality is also relatively good.Dolomitic main component is the double salt of magnesiumcarbonate and lime carbonate, and chemical molecular formula is CaCO
3MgCO
3, dolomite can be obtained dolomite calcined powder in calcining more than 900 ℃, its chemical molecular formula is CaOMgO.At present, dolomite is mainly used in produces magnesium cement stone, but its hierarchy of skill is low, and added value of product is not high, and is less in the application of other field.And, improve its specific surface area with the method for dolomite calcined powder through hydrothermal treatment consists, thus realize activation to dolomite calcined powder, expanded dolomitic Application Areas, also improved its economic worth simultaneously.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, activation method of a kind of dolomite calcined powder and uses thereof is provided.
The activation method of dolomite calcined powder is: the dolomite calcined powder of 1 weight part and the water of 5～50 weight parts are added in the hydrothermal reaction kettle; Under 100～200 ℃ temperature of reaction, carried out priming reaction 1～5 hour; Cooling is filtered, washing, and drying promptly gets and activates dolomite calcined powder.
Described hydrothermal reaction kettle is for being equipped with the teflon-lined hydrothermal reaction kettle.
The present invention compared with prior art has following having a few:
(1) equipment is simple, and is easy to operate, and the reaction times is short.
(2) the active dolomite calcined powder of synthetic of the present invention is compared with the common dolomite calcined powder that do not activate, and has higher specific surface area, stronger absorption property.
Embodiment
The present invention is further described in conjunction with following example, but content of the present invention is not limited only to content related among the embodiment.
Embodiment 1
With raw material by dolomite calcined powder: to be that 1: 5 mass ratio is mixed change in the autoclave after evenly water, in 100 ℃ of reaction 1h, with reacted sample cooling, filter washing, drying, must activate the dolomite calcined powder product, activation dolomite calcined powder product specific surface area test result is 50.5214m
2/ g.
Embodiment 2
With raw material by dolomite calcined powder: to be that 1: 15 mass ratio is mixed change in the autoclave after evenly water, in 130 ℃ of reaction 2h, with reacted sample cooling, filter washing, drying, must activate the dolomite calcined powder product, activation dolomite calcined powder product specific surface area test result is 57.5904m
2/ g.
Embodiment 3
With raw material by dolomite calcined powder: to be that 1: 25 mass ratio is mixed change in the autoclave after evenly water, in 160 ℃ of reaction 3h, with reacted sample cooling, filter washing, drying, must activate the dolomite calcined powder product, activation dolomite calcined powder product specific surface area test result is 58.5908m
2/ g.
Embodiment 4
With raw material by dolomite calcined powder: to be that 1: 35 mass ratio is mixed change in the autoclave after evenly water, in 180 ℃ of reaction 4h, with reacted sample cooling, filter washing, drying, must activate the dolomite calcined powder product, activation dolomite calcined powder product specific surface area test result is 53.9303m
2/ g.
Embodiment 5
With raw material by dolomite calcined powder: to be that 1: 50 mass ratio is mixed change in the autoclave after evenly water, in 200 ℃ of reaction 5h, with reacted sample cooling, filter washing, drying, must activate the dolomite calcined powder product, activation dolomite calcined powder product specific surface area test result is 65.5160m
2/ g.
Comparative Examples
Without the dolomite calcined powder of hydrothermal method activation treatment, not activating dolomite calcined powder product specific surface area test result is 11.4108m
2/ g.
Embodiment 6
Getting 50ml concentration is the methylene blue simulated wastewater of 800mg/L, adds 1g activation dolomite calcined powder, and magnetic agitation 4 hours is filtered, and the concentration of surveying filtrate is 8mg/L, and adsorption rate is 99%.
Comparative Examples
Adsorption rate without the dolomite calcined powder of overactivation is 80%.
Embodiment 7
Get 60ml electronic printing version waste water, its COD value is 3000, adds 5g activation dolomite calcined powder, and magnetic agitation 4 hours is filtered, and the COD value of surveying filtrate is 100, and adsorption rate is 96.7%.
Comparative Examples
Adsorption rate without the dolomite calcined powder of overactivation is 78%
Embodiment 8
Get the heavy metal wastewater thereby that the 70ml copper ion concentration is 0.5mol/L, add 3g activation dolomite calcined powder, magnetic agitation 4 hours is filtered, and the copper ion concentration of surveying filtrate is 0.002mol/L, and adsorption rate is 96%.
Comparative Examples
Adsorption rate without the dolomite calcined powder of overactivation is 89%
Embodiment 9
Take by weighing suitable quantity of water, add an amount of Sodium hexametaphosphate 99 therein, the back that stirs adds proper quantity of defoaming agent, wetting agent and dispersion agent, adds the dolomite calcined powder after activating under the high-speed stirring; On above-mentioned base-material, add various fillers, proper quantity of defoaming agent, wetting agent, dispersion agent and film coalescence aid successively and stir, after multi-functional shredder grinds dispersion, obtain predispersion.In the coating work in-process of appeal, add proper quantity of defoaming agent and benzene emulsion under the agitation condition, add an amount of advection agent, thickening material at last, coating is modulated suitable viscosity, after stirring, after filtration nano modification coating, prescription sees Table 1.With intestinal bacteria is object bacteria, and recording sterilization rate is 97%.
Table 1 formulation for coating material
Tab.1Coating?component
Comparative Examples
The coating sterilization rate that does not add the activation dolomite calcined powder is 60%.
Claims (3)
1. activation method of a dolomite calcined powder and uses thereof is characterized in that: the dolomite calcined powder of 1 weight part and the water of 5～50 weight parts are added in the hydrothermal reaction kettle; Under 100～200 ℃ temperature of reaction, carried out priming reaction 1～5 hour; Cooling is filtered, washing, and drying promptly gets and activates dolomite calcined powder.
2. the activation method of a kind of dolomite calcined powder as claimed in claim 1 is characterized in that described hydrothermal reaction kettle is for being equipped with the teflon-lined hydrothermal reaction kettle.
3. the purposes of method activatory dolomite calcined powder according to claim 1 is characterized in that being used for treatment of dyeing and printing, electronic printing plate waste water, heavy metal wastewater thereby and coating antibiosis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010039600A CN101759379A (en) | 2010-01-08 | 2010-01-08 | Method for activating dolomite calcined powder and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010039600A CN101759379A (en) | 2010-01-08 | 2010-01-08 | Method for activating dolomite calcined powder and application thereof |
Publications (1)
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| CN101759379A true CN101759379A (en) | 2010-06-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010039600A Pending CN101759379A (en) | 2010-01-08 | 2010-01-08 | Method for activating dolomite calcined powder and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874947A (en) * | 2012-09-25 | 2013-01-16 | 杭州电子科技大学 | Method for recovering ethylene diamine tetraacetic acid (EDTA) while treating metal-EDTA-containing chelated wastewater |
| CN102874944A (en) * | 2012-09-25 | 2013-01-16 | 杭州电子科技大学 | Method for treating dye wastewater |
| CN106000291A (en) * | 2015-03-31 | 2016-10-12 | 住友大阪水泥股份有限公司 | Dolomite material with high specific surface area, manufacturing method and quality control method thereof |
-
2010
- 2010-01-08 CN CN201010039600A patent/CN101759379A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874947A (en) * | 2012-09-25 | 2013-01-16 | 杭州电子科技大学 | Method for recovering ethylene diamine tetraacetic acid (EDTA) while treating metal-EDTA-containing chelated wastewater |
| CN102874944A (en) * | 2012-09-25 | 2013-01-16 | 杭州电子科技大学 | Method for treating dye wastewater |
| CN102874944B (en) * | 2012-09-25 | 2014-01-29 | 杭州电子科技大学 | Method for treating dye wastewater |
| CN106000291A (en) * | 2015-03-31 | 2016-10-12 | 住友大阪水泥股份有限公司 | Dolomite material with high specific surface area, manufacturing method and quality control method thereof |
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Application publication date: 20100630 |