CN106044734A - Method for preparing nano-hydroxyapatite - Google Patents
Method for preparing nano-hydroxyapatite Download PDFInfo
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- CN106044734A CN106044734A CN201610458892.9A CN201610458892A CN106044734A CN 106044734 A CN106044734 A CN 106044734A CN 201610458892 A CN201610458892 A CN 201610458892A CN 106044734 A CN106044734 A CN 106044734A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
- C01B25/325—Preparation by double decomposition
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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- C—CHEMISTRY; METALLURGY
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/82—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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Abstract
The invention provides a method for preparing nano-hydroxyapatite. The method comprises the following steps of dissolving calcium-containing slag into acid, removing impurities which are not dissolved in the acid by means of filtering, adjusting a pH value to an alkaline level, removing impurities which are not dissolved in alkali by means of filtering again, and obtaining a calcium salt solution; mixing the calcium salt solution with a phosphate solution, adjusting the pH value of the mixed solution to the alkaline level, and reacting to obtain the nano-hydroxyapatite. Compared with the prior art, the nano-hydroxyapatite prepared according to the method provided by the invention has the advantages that factory slag is taken as a raw material, the factory slag is cheap and is easily and widely obtained, the effect of turning waste into treasure is achieved, the nano-hydroxyapatite is friendly and harmless to the environment, and the technology is simple; the dispersity is excellent, the particle diameters are uniform, and the adsorption of heavy metal ions in wastewater is beneficially performed; the prepared nano-hydroxyapatite has a proper mechanical property and an excellent processing property, and the environment can be prevented from secondary pollution during the process of treating heavy metal in the wastewater, therefore the nano-hydroxyapatite is widely used in the field of water treatment.
Description
Technical field
The present invention relates to a kind of slag prepare nanometer hydroxyapatite preparation method and in absorption effluent heavy metal
Application in ion, belongs to field of environment protection.
Background technology
Environment in recent years is polluted and is strengthened, and constitutes ecological balance, human health and Sustainable Socioeconomic Development seriously
Threatening, the depollution of environment is by global extensive attention.In numerous pollutions, owing to the demand of water is big, water pollution more comes
The moon is paid close attention to by people, and then becomes the emphasis of the depollution of environment.Water is Source of life, and any biology and the source of income be not all from
Boiled water, owing to the source of water is wide, including drinking water, domestic water, food, industrial wastewater etc., so it is the harm mankind that water pollutes
Healthy key factor.Pollutant in water are mainly some hydrargyrum (Hg), cadmium (Cd), lead (Pb), chromium (Cr), arsenic (As), copper
(Cu), the heavy metal such as zinc (Zn), cobalt (Co), nickel (Ni).At present, the processing method used for these pollutant has chemical precipitation
Method, electrolysis, solvent extraction and separation, ion exchange, membrane separation technique, absorption method etc..Its ion exchange methods and absorption method
It is considered as to eliminate one of these pollutant most efficient methods.It is big that ion exchange processes capacity, and effluent quality is good, recyclable
Heavy metal resources, to environment non-secondary pollution, but the oxidizable inefficacy of ion-exchanger, frequently, operating cost is high in regeneration.Absorption method
It it is a kind of eco-friendly green technology.It is broadly divided into chemisorbed (have a test in chemistry bonding force effect) and physical absorption (by adsorbent
And between adsorbate to molecular action) and ion-exchange absorption attached (by electrostatic attraction effect), the kind of heavy metal ion is not
With, adsorption method is different.With ion exchange phase ratio, absorption method has (1) and is used as the material source of adsorbent extensively, and kind is numerous
Many；(2) easy and simple to handle, it is not necessary to complicated device；(3) energy consumption is low, and secondary pollution is little；(4) adsorbent is reusable；(5)
The metal of absorption is prone to eluting, recyclable precious metal etc..
The most common to adsorbent for heavy metal include wood materials, magnetic mesoporous material, chitosan, carbon nanometer
Pipe, charcoal, graphene oxide and nanometer hydroxyapatite, different ABSORBENTS ABSORPTION metal biosorption principles is different,
Adsorption effect is the most variant.The product of Ideal adsorption agent environmental sound to be generated, also wants heavy metal to have good suction
Attached ability.Apatite is the host inorganic composition of human bone, and therefore environment is safe from harm by the building-up process of hydroxyapatite.Cross
Going in decades, hydroxyapatite is because its adsorbance is high, dissolubility is low, low cost is widely applied to long as high-efficiency adsorbent
Phase processes in heavy metal.Chen Zhang etc. (patent No. CN105289526A) with the seedpod of the lotus for raw water full-boiled process prepare into carbon gels for
Heavy metal Cr VI absorption in water, the clearance of hexavalent chromium reaches 95.2%.(the patent No. such as Liu Xiangyang
CN105312035A) the polyimide/silicon dioxide nanometer heavy-metal adsorption material absorbing copper ion prepared, this material thermal resistance
Preferably, it is adaptable to the removal of heavy metal ion under hot conditions.Lei Chunsheng etc. (patent No. CN105268418A) crosslinking shell gathers
The modified pomelo peel of sugar removes the heavy metal ion of the low concentration in waste water, but this material is not suitable for the heavy metal of high concentration
The absorption of ion, does not have extensive application.Open red equality (patent No. CN104941589A) and prepare based on cotton stalk many
Hole charcoal Adsorption of Heavy Metals, the highest to the adsorbance of lead ion, at maximum up to 132mg/g.(the patent No. such as lift a sail
CN103861565B) grapheme modified as adsorbing material with linear amino molecule, adsorb manganese ion, lead ion, copper ion, cadmium
Ion, best to the adsorption efficiency of lead ion, up to 370mg/g.
In water treatment field, nanometer hydroxyapatite with its higher absorption property, nontoxic, convieniently synthesized, be prepared as
The advantages such as this is low, cause the extensive concern of people.The preparation method of nanometer hydroxyapatite is the most ripe at present,
Orlovskii summarizes three kinds of methods preparing hydroxyapatite: chemical precipitation method, solid-state synthetic method, hydro-thermal method.Hydrothermal Synthesis
It is relatively big that method and solid-state synthetic method prepare hydroxyapatite power consumption, realizes cost high in practical application in industry, is difficult to realize.Xin
Yang etc. are by magnetic Fe3O4Nanoparticle is decorated on reduction graphite, and studies its adsorption efficiency to lead ion, although inhale
Attached efficiency is higher, but due to Fe3O4Nanoparticle is unstable under acidic condition, is easily decomposed, and is unfavorable under acid condition absorption
Heavy metal ion.Qingchun Zhao etc., by emulsion polymerisation process, have synthesized Al (OH)3/ (PAA-co-PAM) superfine
Ball, and Adsorption of Heavy Metal Ions, but this adsorbent is not suitable for large-scale production, on the one hand, and its separation process often uses
The separation process of rule, can cause substantial amounts of loss；On the other hand, this adsorbent, because not possessing magnetic responsiveness, is unfavorable for that it circulates
Use.
Summary of the invention
It is an object of the invention to prepare nanometer hydroxyapatite with factory's slag for raw material coprecipitation, and in sewage
Heavy metal ion carry out adsorption experiment, it is achieved turn waste into wealth.It is high that nanometer hydroxyapatite prepared by the present invention has productivity, point
Dissipate property good, uniform particle sizes, good absorption property, can be applicable to the heavy metal ion in absorption effluent.
The present invention is achieved by the following technical solutions:
The preparation method of a kind of nanometer hydroxyapatite, it comprises the steps:
Calcic slag is dissolved in acid, after being filtered to remove the impurity insoluble in acid, with alkali regulation pH value to 7～14, then
Secondary it is filtered to remove the impurity insoluble in alkali, obtains calcium salt soln；
Described calcium salt soln mixed with phosphate solution and regulates pH value to behind 7～14, carrying out anti-at 10～200 DEG C
Should, obtain described nanometer hydroxyapatite.
Preferably, the step described nanometer hydroxyapatite washed, is dried also is included.
Preferably, described dry temperature is 10～200 DEG C.
Preferably, the concentration of described acid is 0.01mol/L～12mol/L.
Preferably, the concentration of described alkali is 0.001～12mol/L.
Preferably, in described calcium salt soln, the concentration of calcium ion is 0.00001～100mol/L.
Preferably, when described calcium salt soln mixes with phosphate solution, control calcium phosphorus mole wall be 1:1.5～
1:1.8。
Preferably, described phosphate is selected from diammonium phosphate, ammonium dihydrogen phosphate, disodium hydrogen phosphate, biphosphate
At least one in sodium, dipotassium hydrogen phosphate, potassium dihydrogen phosphate.
Preferably, described calcic slag includes the following component of percentage: CaO:10～
80%, SiO2: 10～80%, Al2O3: 0.1～30%, MgO:0.1～10%, MnO:0.1～10%, and inevitably
Impurity: 0.7～10%.
Preferably, at least one in hydrochloric acid, nitric acid, phosphoric acid, sulphuric acid of described acid；Described alkali is selected from ammonia
At least one in water, sodium hydroxide, potassium hydroxide.
Above-mentioned nanometer hydroxyapatite, it is adjustable between a diameter of 1～200nm.
Compared with prior art, the present invention has a following beneficial effect:
1, nanometer hydroxyapatite prepared by the present invention, using factory slag is raw material, the most cheap and easy to get, draw materials wide
General, it is achieved to turn waste into wealth, and environmentally friendly harmless, and technique is simple.
2, nano-hydroxy-apatite prepared by the present invention, favorable dispersibility, uniform particle sizes, diameter is adjustable between 1～200nm,
Be conducive to the absorption of heavy metal ions in sewage.
3, nanometer hydroxyapatite prepared by the present invention, have suitable mechanical performance and good can processing type energy, place
In reason sewage during heavy metal, environment is not resulted in secondary pollution, in order to the extensive application in water treatment field.
Accompanying drawing explanation
By the detailed description non-limiting example made with reference to the following drawings of reading, the further feature of the present invention,
Purpose and advantage will become more apparent upon:
Fig. 1 is the scanning electron microscope image of the nanometer hydroxyapatite prepared in embodiment 1 in the present invention.
Fig. 2 is the X ray diffracting spectrum of the nanometer hydroxyapatite prepared in embodiment 1 in the present invention.
Fig. 3 is the FTIR spectrum figure of the nanometer hydroxyapatite prepared in embodiment 1 in the present invention.
Fig. 4 is the scanning electron microscope image in the present invention after the nanometer hydroxyapatite adsorpting lead ion of embodiment 2 preparation.
Fig. 5 is the scanning electron microscope image in the present invention after the nanometer hydroxyapatite Adsorption of Chromium ion of embodiment 3 preparation.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in the technology of this area
Personnel are further appreciated by the present invention, but limit the present invention the most in any form.It should be pointed out that, the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement.These broadly fall into the present invention
Protection domain.
The different calcic slag of sampling, is analyzed composition, as shown in table 1.
The composition of the different slag of table 1
Embodiment 1
(1), at room temperature 20 DEG C, take 30g slag 1# and be dissolved in 620mL 1.0mol/L dilute hydrochloric acid, magnetic agitation, so centrifugal that to filter
Liquid.
(2) regulate filtrate pH to 10 with 1.0mol/L ammonia, be centrifuged to obtain filtrate.
(3) Ca is measured2+Concentration is 0.02mol/L, measures 100mL 0.12mol/L diammonium phosphate, uses 0.0010mol/L
Ammonia regulation pH to 10, dropwise instills it in calcium source at 40 DEG C, uniform stirring, continues stirring 1h after being added dropwise to complete, during
Keep pH constant, be aged 12h, be washed to neutrality with deionized water, be dried, i.e. can get nanometer hydroxyapatite.
Pattern and composition to the nanometer hydroxyapatite obtained by embodiment 1 characterize, the scanning electron microscope (SEM) photograph obtained
As (SEM), X ray diffracting spectrum (XRD) is respectively by as depicted in figs. 1 and 2.
Schemed from Fig. 1 a and Fig. 1 b, obtained nanometer hydroxyapatite good dispersion, formed seen from high power lens
Nanometer hydroxyapatite is chondritic, a diameter of the 10 of ball～50nm.As shown in Figure 2, the crystal formation of nanometer hydroxyapatite is
Hexagonal structure.
Embodiment 2
Nanometer hydroxyapatite to embodiment 1 gained carries out the adsorption experiment of heavy metal ion:
(1) weighing nanometer hydroxyapatite 0.5g, plumbum ion concentration is the sewage of 800mg/L, pH=5.5, at 20 DEG C,
Adsorb under 400rpm stir speed (S.S.), timing sampling, with residual lead in the EDTA solution volumetric soiutions of 1.0000mmol/L from
The concentration of son, until reaching adsorption equilibrium.
(2) to the nanometer hydroxyapatite of embodiment 2 preparation under variable concentrations, different pH, different temperatures Adsorption of Lead from
Sub-experimental data has carried out drawing and analyzing, as shown in table 2, to lead ion adsorbance curve chart as it is shown on figure 3, and Adsorption of Lead
SEM after ion as shown in figures 4 a and 4b, relative to existing adsorbing material to the adsorption effect of heavy metal in sewage, this
The adsorption effect of the nanometer hydroxyapatite heavy metal ion of bright preparation has the highest lifting.
Table 2
Embodiment 3
(1), at room temperature 20 DEG C, take 10g slag 2# and be dissolved in 17.5mL 12.0mol/L dilute hydrochloric acid, magnetic agitation, centrifugal
Filtrate.
(2) regulate filtrate pH to 10 with 12.0mol/L ammonia, be centrifuged to obtain filtrate.
(3) Ca is measured2+Concentration is 1.5mol/L, measures 100mL 0.27mol/L diammonium hydrogen phosphate, uses 12mol/L ammonia
Regulation pH to 10, it is dropwise instilled in calcium source at 40 DEG C, uniform stirring, after being added dropwise to complete continue stirring 1h, during keep
PH is constant, is aged 12h, is washed to neutrality with deionized water, is dried, i.e. can get nanometer hydroxyapatite.
Embodiment 4
Nanometer hydroxyapatite to embodiment 1 gained carries out the adsorption experiment of heavy metal ion:
(1) weighing nanometer hydroxyapatite 1.5g, hexavalent chromium concentration is the sewage of 100mg/L, pH=4.0,20 DEG C
Under, adsorb under 400rpm stir speed (S.S.), timing sampling, with Ferrous ammonium sulfate standard solution volumetric soiutions remains chromium ion
Concentration, until reach adsorption equilibrium.
(2) to the nanometer hydroxyapatite of embodiment 3 preparation under variable concentrations, different pH, different temperatures Adsorption of Lead from
Sub-experimental data has carried out drawing and analyze Adsorption of Chromium ion experiment the data obtained and has carried out drawing and analyzing, as shown in table 3, right
Hexavalent chromium adsorbance curve chart as it is shown in figure 5, and SEM after Adsorption of Chromium ion as shown in figure 5 a and 5b, nanometer hydroxyl
The adsorption effect of base apatite heavy metal ion has the highest lifting.
In table 3 embodiment 1, the nanometer hydroxyapatite of preparation is to chromium ion under variable concentrations, different pH, different temperatures
Adsorbance.
Embodiment 5
(1), at room temperature 20 DEG C, take 20g slag 3# and be dissolved in 40mL 12.0mol/L dust technology, magnetic agitation, so centrifugal that to filter
Liquid.
(2) regulate filtrate pH to 7 with 12.0mol/L ammonia, be centrifuged to obtain filtrate.
(3) Ca is measured2+Concentration is 0.40mol/L, measures 100mL 0.12mol/L phosphoric acid dihydro amine, uses 1.0mol/L ammonia
Water regulation pH to 7, it is dropwise instilled in calcium source at 40 DEG C, uniform stirring, after being added dropwise to complete continue stirring 1h, during keep
PH is constant, is aged 12h, is washed to neutrality with deionized water, is dried, i.e. can get nanometer hydroxyapatite.
Embodiment 6
(1), at room temperature 20 DEG C, take 5g slag 4# and be dissolved in 100mL 1.0mol/L dust technology, magnetic agitation, so centrifugal that to filter
Liquid.
(2) regulate filtrate pH to 14 with 0.01mol/L sodium hydroxide, be centrifuged to obtain filtrate.
(3) Ca is measured2+Concentration is 0.1mol/L, measures 100mL 0.12mol/L disodium hydrogen phosphate, uses 0.01mol/L hydrogen
Sodium oxide regulation pH to 14, dropwise instills it in calcium source at 40 DEG C, uniform stirring, continues stirring 1h, process after being added dropwise to complete
Middle holding pH is constant, is aged 12h, is washed to neutrality with deionized water, is dried, i.e. can get nanometer hydroxyapatite.
Embodiment 7
(1), at room temperature 20 DEG C, take 3g slag 5# and be dissolved in 9.0mL 12mol/L phosphoric acid,diluted, magnetic agitation, so centrifugal that to filter
Liquid.
(2) regulate filtrate pH to 10 with 12.0mol/L sodium hydroxide, be centrifuged to obtain filtrate.
(3) Ca is measured2+Concentration is 1.2mol/L, measures 100mL 0.12mol/L sodium dihydrogen phosphate, uses 12.0mol/L hydrogen
Sodium oxide regulation pH to 10, dropwise instills it in calcium source at 40 DEG C, uniform stirring, continues stirring 1h, process after being added dropwise to complete
Middle holding pH is constant, is aged 12h, is washed to neutrality with deionized water, is dried, i.e. can get nanometer hydroxyapatite.
Embodiment 8
(1), at room temperature 20 DEG C, take 5g slag 6# and be dissolved in 5L 0.01mol/L phosphoric acid,diluted, magnetic agitation, it is centrifuged to obtain filtrate.
(2) regulate filtrate pH to 10 with 12.0mol/L potassium hydroxide, be centrifuged to obtain filtrate.
(3) Ca is measured2+Concentration is 0.005mol/L, measures 100mL 0.14mol/L dipotassium hydrogen phosphate, uses 12.0mol/L
Potassium hydroxide regulation pH to 10, dropwise instills it in calcium source at 40 DEG C, uniform stirring, continues stirring 1h, mistake after being added dropwise to complete
Journey keeps pH constant, be aged 12h, be washed to neutrality with deionized water, be dried, i.e. can get nanometer hydroxyapatite.
Embodiment 9
(1), at room temperature 20 DEG C, take 10g slag 7# and be dissolved in 210mL 1mol/L dilute sulfuric acid, magnetic agitation, so centrifugal that to filter
Liquid.
(2) regulate filtrate pH to 10 with 0.01mol/L potassium hydroxide, be centrifuged to obtain filtrate.
(3) Ca is measured2+Concentration is 0.1mol/L, measures 100mL 0.18mol/L potassium dihydrogen phosphate, uses 0.01mol/L hydrogen
Potassium oxide regulation pH to 10, dropwise instills it in calcium source at 40 DEG C, uniform stirring, continues stirring 1h, process after being added dropwise to complete
Middle holding pH is constant, is aged 12h, is washed to neutrality with deionized water, is dried, i.e. can get nanometer hydroxyapatite.
Embodiment 10
(1), at room temperature 20 DEG C, take 10g slag 7# and be dissolved in 210mL 1mol/L dilute hydrochloric acid, magnetic agitation, so centrifugal that to filter
Liquid.
(2) regulate filtrate pH to 10 with 1mol/L ammonia, be centrifuged to obtain filtrate.
(3) Ca is measured2+Concentration is 0.2mol/L, by calcium-phosphorus ratio 1.5, measures 100mL 0.26mol/L diammonium hydrogen phosphate
Consumption, regulates pH to 10 with 1mol/L ammonia, it is dropwise instilled in calcium source, uniform stirring at 10 DEG C, continues after being added dropwise to complete
Stirring 1h, during keep pH constant, be aged 12h, be washed to neutrality with deionized water, be dried, i.e. can get nano hydroxyapatite
Lime stone.
Embodiment 11
(1), at room temperature 20 DEG C, take 10g slag 7# and be dissolved in 210mL 1mol/L dilute hydrochloric acid, magnetic agitation, so centrifugal that to filter
Liquid.
(2) regulate filtrate pH to 10 with 1mol/L ammonia, be centrifuged to obtain filtrate.
(3) Ca is measured2+Concentration is 0.2mol/L, by calcium-phosphorus ratio 1.8, measures 100mL 0.2mol/L diammonium hydrogen phosphate, uses
1mol/L ammonia regulation pH to 14, dropwise instills it in calcium source at 200 DEG C, uniform stirring, continues stirring 1h after being added dropwise to complete,
During keep pH constant, be aged 12h, be washed to neutrality with deionized water, be dried, i.e. can get nanometer hydroxyapatite.
In sum, only presently preferred embodiments of the present invention, not it is used for limiting the scope that the present invention implements, all depends on
Equalization change and the modification that shape, structure, feature and spirit described in scope of the invention as claimed is done, all should be included in this
In the right of invention.
Claims (10)
1. the preparation method of a nanometer hydroxyapatite, it is characterised in that comprise the steps:
Calcic slag is dissolved in acid, after being filtered to remove the impurity insoluble in acid, with alkali regulation pH value to 7～14, mistake again
Filter the impurity insoluble in alkali, obtain calcium salt soln；
Described calcium salt soln mixed with phosphate solution and regulate pH value to behind 7～14, reacting at 10～200 DEG C,
Obtain described nanometer hydroxyapatite.
2. the preparation method of nanometer hydroxyapatite as claimed in claim 1, it is characterised in that also include described nanometer hydroxyl
Base apatite carries out the step washed, be dried.
3. the preparation method of nanometer hydroxyapatite as claimed in claim 2, it is characterised in that described dry temperature is 10
～200 DEG C.
4. the preparation method of nanometer hydroxyapatite as claimed in claim 1, it is characterised in that the concentration of described acid is
0.01mol/L～12mol/L.
5. the preparation method of nanometer hydroxyapatite as claimed in claim 1, it is characterised in that the concentration of described alkali is
0.001～12mol/L.
6. the preparation method of nanometer hydroxyapatite as claimed in claim 1, it is characterised in that in described calcium salt soln, calcium
The concentration of ion is 0.00001～100mol/L.
7. the preparation method of nanometer hydroxyapatite as claimed in claim 1, it is characterised in that described calcium salt soln and phosphoric acid
During saline solution mixing, the mol ratio controlling calcium phosphorus is 1:1.5～1:1.8.
8. the preparation method of nanometer hydroxyapatite as claimed in claim 1, it is characterised in that described phosphate is selected from phosphoric acid
At least one in hydrogen diammonium, ammonium dihydrogen phosphate, disodium hydrogen phosphate, sodium dihydrogen phosphate, dipotassium hydrogen phosphate, potassium dihydrogen phosphate.
9. the preparation method of nanometer hydroxyapatite as claimed in claim 1, it is characterised in that comprise in described calcic slag
There is a following component of percentage:
CaO:10～80%, SiO2: 10～80%, Al2O3: 0.1～30%, MgO:0.1～10%, MnO:0.1～10%, with
And inevitable impurity: 0.7～10%.
10. the preparation method of nanometer hydroxyapatite as claimed in claim 1, it is characterised in that described acid is selected from hydrochloric acid, nitre
At least one in acid, phosphoric acid, sulphuric acid；At least one in ammonia, sodium hydroxide, potassium hydroxide of described alkali.
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| CN106829901A (en) * | 2017-01-24 | 2017-06-13 | 武汉工程大学 | A kind of water insoluble method for production of phosphate salt |
| CN106922654A (en) * | 2016-12-31 | 2017-07-07 | 新昌县迪斯曼科技有限公司 | One-step synthesis prepare hydroxyapatite pesticide, fertilizer slow release complex |
| CN107474849A (en) * | 2017-08-11 | 2017-12-15 | 安徽理工大学 | A kind of original position prepares the method that hydroxyapatite reinforces sand |
| CN107935097A (en) * | 2017-12-22 | 2018-04-20 | 北京化工大学 | Adsorption method of the ultra-small grain size hydroxyapatite nanoparticle to heavy metal ion in water |
| CN107934976A (en) * | 2017-12-04 | 2018-04-20 | 宝武集团环境资源科技有限公司 | Method that silicate type apatite is prepared by smelting iron and steel slag and application thereof |
| CN110280208A (en) * | 2019-07-11 | 2019-09-27 | 南京理工大学 | The method that hydroxyapatite is prepared by chemical industry recycling phosphate |
| CN110357183A (en) * | 2019-08-09 | 2019-10-22 | 珠海品源绿色健康产业发展有限公司 | A kind of synthetic method of hydrogen-rich water ceramic element |
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| CN111232941A (en) * | 2020-03-25 | 2020-06-05 | 江苏一夫科技股份有限公司 | Method for preparing hydroxyapatite based on phosphogypsum cleaning wastewater |
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| CN115155506A (en) * | 2022-06-29 | 2022-10-11 | 华南理工大学 | Iron-manganese oxide and preparation method and application thereof |
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| CN107474849A (en) * | 2017-08-11 | 2017-12-15 | 安徽理工大学 | A kind of original position prepares the method that hydroxyapatite reinforces sand |
| CN107934976A (en) * | 2017-12-04 | 2018-04-20 | 宝武集团环境资源科技有限公司 | Method that silicate type apatite is prepared by smelting iron and steel slag and application thereof |
| CN107935097A (en) * | 2017-12-22 | 2018-04-20 | 北京化工大学 | Adsorption method of the ultra-small grain size hydroxyapatite nanoparticle to heavy metal ion in water |
| CN110280208A (en) * | 2019-07-11 | 2019-09-27 | 南京理工大学 | The method that hydroxyapatite is prepared by chemical industry recycling phosphate |
| CN110357183A (en) * | 2019-08-09 | 2019-10-22 | 珠海品源绿色健康产业发展有限公司 | A kind of synthetic method of hydrogen-rich water ceramic element |
| CN110357183B (en) * | 2019-08-09 | 2021-11-23 | 珠海品源绿色健康产业发展有限公司 | Synthesis method of hydrogen-rich water ceramic filter element |
| CN110508232A (en) * | 2019-08-30 | 2019-11-29 | 广州大学 | The method that the preparation method and applications and hydroxyapatite of hydroxyapatite remove uranium in waste water |
| CN111232941A (en) * | 2020-03-25 | 2020-06-05 | 江苏一夫科技股份有限公司 | Method for preparing hydroxyapatite based on phosphogypsum cleaning wastewater |
| CN111495315B (en) * | 2020-04-23 | 2021-05-25 | 齐鲁工业大学 | Pb in water body2+Application and preparation method of adsorbing material |
| CN111495315A (en) * | 2020-04-23 | 2020-08-07 | 齐鲁工业大学 | Pb in water body2+Application and preparation method of adsorbing material |
| CN114180544A (en) * | 2021-12-28 | 2022-03-15 | 上海交通大学内蒙古研究院 | Method for preparing bone-like hydroxyapatite material by using carbide slag |
| CN114702962A (en) * | 2022-04-24 | 2022-07-05 | 广东省地质实验测试中心 | Iron-based modified nano hydroxyapatite material, preparation method thereof and application thereof in Cd-contaminated soil remediation |
| CN114702962B (en) * | 2022-04-24 | 2023-11-03 | 广东省地质实验测试中心 | Iron-based modified nano hydroxyapatite material, preparation method thereof and application thereof in restoring Cd-polluted soil |
| CN114917886A (en) * | 2022-05-12 | 2022-08-19 | 中国地质大学（武汉） | Calcium phosphate-montmorillonite composite material and preparation method and application thereof |
| CN114917886B (en) * | 2022-05-12 | 2023-08-04 | 中国地质大学（武汉） | Calcium phosphate-montmorillonite composite material and preparation method and application thereof |
| CN115155506A (en) * | 2022-06-29 | 2022-10-11 | 华南理工大学 | Iron-manganese oxide and preparation method and application thereof |
| CN115155506B (en) * | 2022-06-29 | 2023-08-22 | 华南理工大学 | Iron-manganese oxide and preparation method and application thereof |
| CN116281911A (en) * | 2023-03-24 | 2023-06-23 | 东北大学 | Method for preparing hydroxyapatite from steel slag |
| CN116281911B (en) * | 2023-03-24 | 2024-06-18 | 东北大学 | Method for preparing hydroxyapatite from steel slag |
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