CN106745364A - A kind of Implant hydroxyapatite filter grain based on planting method fluorine removal water process and preparation method thereof - Google Patents
A kind of Implant hydroxyapatite filter grain based on planting method fluorine removal water process and preparation method thereof Download PDFInfo
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- CN106745364A CN106745364A CN201611087456.1A CN201611087456A CN106745364A CN 106745364 A CN106745364 A CN 106745364A CN 201611087456 A CN201611087456 A CN 201611087456A CN 106745364 A CN106745364 A CN 106745364A
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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
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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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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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
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
Abstract
The present invention relates to a kind of Implant hydroxyapatite filter grain based on planting method fluorine removal water process and preparation method thereof, it is characterized in that from the kernel of filter grain to outer surface in the structure of the Implant hydroxyapatite filter grain, kernel plantation layer 1, transition plantation layer 2 and appearance plantation layer 3 are divided into being incremented by for hydroxy radical content, are chemical bonding between adjacent two layers；Wherein：The main body of the kernel plantation layer 1 is the hydroxyl migration material body of Implant hydroxyapatite filter grain；The main body of the transition plantation layer 2 exchanges material body for the hydroxyl of Implant hydroxyapatite filter grain；The main body of the appearance plantation layer 3 is the mammary calculus plantation material body of Implant hydroxyapatite filter grain.The fluorine removing rate of Implant hydroxyapatite filter grain of the invention is high, and the process for fluorine removal water process is easy to be reliable, the need for meeting planting method fluorine removal water treatment technology.
Description
Technical field
The invention belongs to material for water treatment technical field, more particularly to a kind of plantation based on planting method fluorine removal water process
Type hydroxyapatite filter grain and preparation method thereof.
Background technology
Fluorine is one of necessary trace element of human body, but drinking high-fluorine water can then cause fluorine poisoning for a long time, can have a strong impact on
Health, therefore the World Health Organization discloses the regulation that fluorine content of drinking water must not exceed 1.5mg/L.At current defluoroing water
Reason technique study is paid much attention to by various countries, and the fluorine removal method for treating water that early-stage Study is announced mainly has coagulation sedimentation, changes
The precipitation method, electroosmose process, electrocoagulation, hyperfiltration, nano filtering process, ion-exchange, absorption method etc. are learned, wherein：Chemical precipitation
Method and coagulation sedimentation can leave a large amount of calcium aluminium plasmas, be mainly used in Industrial Wastewater Treatment；Because high-fluorine water is mainly distributed on
The area of the few electricity of bad environments, with a varied topography or water shortage, so electrodialysis method, electrocoagulation, hyperfiltration, nano filtering process etc.
The effect of fluorine removal is difficult to popularization and application for excellent because device is complicated, apparatus expensive and the deficiency such as use cost is high.Ion exchange
Resin method is also difficult to extensive use because antijamming capability is low.Absorption method is drinking water defluorination processing method the most frequently used at present, but
Filtrate needs regeneration, the problems such as there is also use cost and defluoridation efficacy, be restricted its practical application.To overcome existing skill
The deficiency of art, the applicant it is proposed that a kind of preparation method of aluminium polychloride/hydroxyapatite copolymeric material, referring to China
Patent application 201410743901.X, the method includes preparation, the system of hydroxyapatite semi-finished product of aluminium polychloride semi-finished product
The preparation of standby and copolymeric material, it is and existing by copolymerization process synthesized polymer aluminium chloride/hydroxyapatite copolymerization network structural material
There is defluorination material to compare, the single hydroxyapatite defluoridation filter material of fluorine removal Capacity Ratio improves 3 times, specific activity aluminum oxide defluoridation filter material
Improve 5 times；The network structure of material is conducive to net to catch the effect of aluminium ion and hydroxy apatite powder in water body, solves water body
Exceeded and water body clarity the problem of middle aluminium ion；The aluminium polychloride active component in copolymeric material can promote hydroxyl simultaneously
Apatite is constantly regenerating, improves the service life of material.But also there is following obvious deficiency in the method：One is aluminium base water process material
There is the exceeded risk of aluminium ion in critical field, but still higher than non-aluminum base material for water treatment in the aluminium composition in material；
Two is complex using the Processes and apparatus of aluminium base material for water treatment, to be accounted for by the processes such as filtering, coagulation, precipitation, equipment
Ground area is big, and operating cost is higher；Three is defluorination effect drop when aluminium polychloride/hydroxyapatite copolymeric material has low temperature
Low problem.
How to overcome the shortcomings of to have turned into current material for water treatment existing for existing fluorine removal method for treating water and defluorination material
One of emphasis problem urgently to be resolved hurrily in technical field.
The content of the invention
The purpose of the present invention is to overcome the shortcomings of to provide a kind of based at planting method defluoroing water existing for prior art
Implant hydroxyapatite filter grain of reason and preparation method thereof, Implant hydroxyapatite of the invention filters the fluorine removing rate of grain
Height, the process for fluorine removal water process is easy to be reliable, the need for meeting planting method fluorine removal water treatment technology.
Grain, its feature are filtered according to a kind of Implant hydroxyapatite based on planting method fluorine removal water process proposed by the present invention
It is, from the kernel of filter grain to outer surface in the structure of the Implant hydroxyapatite filter grain, with being incremented by for hydroxy radical content
Kernel plantation layer 1, transition plantation layer 2 and appearance plantation layer 3 are divided into, are chemical bonding between adjacent two layers；Wherein：It is described
The main body of kernel plantation layer 1 is the hydroxyl migration material body of Implant hydroxyapatite filter grain；The main body of transition plantation layer 2 is
The hydroxyl of Implant hydroxyapatite filter grain exchanges material body；The main body of the appearance plantation layer 3 is filtered for Implant hydroxyapatite
The mammary calculus plantation material body of grain；During the content of hydroxyl is 1.19-1.7% in hydroxyl migration material body, the hydroxyl exchanges material body
Hydroxy radical content for 1.7-2.21%, the mammary calculus plantation material body in hydroxy radical content be 2.21-2.72%.
A kind of Implant hydroxyapatite based on planting method fluorine removal water process proposed by the present invention filters the further of grain
Preferred scheme is：
The thickness range of the appearance plantation layer 3 of the Implant hydroxyapatite filter grain is 0.1-0.2mm；The Implant
The thickness range of the transition plantation layer 2 of hydroxyapatite filter grain is 0.3-0.5mm；The Implant hydroxyapatite filters the interior of grain
The thickness range that nuclear species plants layer 1 is 0.5-1.5mm.
The constituent content of the mammary calculus plantation material body is in terms of wt%：Nanometer hydroxyapatite powder including 65-80,2-4
Attapulgite powder, the titanic oxide nano powder of 5-8, the chemical bond mixture of 10-15, the matte plantation agent of 2-5 and 1-3
Bonding agent.
The hydroxyl exchanges the constituent content of material body in terms of wt%：Hydroxyapatite powder, 27-34 including 50-65
The chemical bond mixture and the bonding agent of 2-4 of attapulgite powder, 6-12.
The constituent content of the hydroxyl migration material body is in terms of wt%：Hydroxyapatite powder, 36-40 including 35-50
Attapulgite powder, the bentonite powder of 10-13, the chemical bond mixture and the bonding agent of 1-3 of 3-9.
The chemical bond mixture is ethanedioic acid, malonic acid, succinic acid or glutaric acid.
The particle diameter of the nanometer hydroxyapatite powder is 50-200nm.
The particle diameter of the attapulgite powder is 50-100um.
The particle diameter of the titanic oxide nano powder is 50-200nm.
The particle diameter of the hydroxyapatite powder is 50-100um.
The matte plantation agent is urea, sodium acid carbonate or ammonium hydrogen carbonate.
The bonding agent is the one or more combination in carboxymethylcellulose calcium, waterglass or polyvinyl alcohol.
The particle diameter of the bentonite powder is 50-100um.
Realization principle of the invention is：For the deficiency existing for existing various fluorine removal method for treating water, the present invention is started
Propose to property the new method of planting method fluorine removal water process.The process of planting method fluorine removal water process of the present invention：One is to pass through
Calcium oxide, calcium hydroxide or calcium chloride and sodium dihydrogen phosphate or disodium hydrogen phosphate are added in fluorine-containing raw water, is formed it into containing can
Dissolubility calcium salt, phosphate, the fluorine-containing raw water mixed liquor of fluorine ion；Two is be rich in hydroxyl using Implant hydroxyapatite filter grain top layer
Base and have compared with extensive chemical activity the characteristics of, easily make soluble calcium salt, phosphate, fluorine ion and Implant hydroxyapatite filter grain
It is bonded and mushrooms out as fluor-apatite nucleus；Three be fluor-apatite nucleus continue with fluorine-containing raw water in soluble calcium salt,
Phosphate, fluorine ion further react and are grown to serve as fluorapatite crystal mammary calculus；Four is because fluorapatite crystal mammary calculus is being planted
Bonding force on plant type hydroxyapatite filter grain is weaker, regularly rinses Implant hydroxyapatite with water and filters grain, promote Implant
Hydroxyapatite filter grain rubs each other, you can the fluor-apatite grown on removal Implant hydroxyapatite filter grain is brilliant
Recover the plantation ability that Implant hydroxyapatite filters grain in body mammary calculus, extremely convenient ground.Implant hydroxyapatite of the invention
The component structure for filtering grain is to be based on the realization principle of planting method fluorine removal water process and propose, Implant hydroxyl of the present invention
From granular core to outer surface in apatite filter kernel structure, kernel plantation layer 1, transition is divided into being incremented by for hydroxy radical content
Plantation layer 2 and appearance plantation layer 3, by being laid out the hydroxy radical content of each plantation layer, the hydroxyl for particularly strengthening appearance plantation layer 3 contains
Amount, is beneficial to the more fluor-apatite nucleus fast-growths of promotion and forms fluorapatite crystal, until turning into Implant hydroxyl
The fluorapatite crystal mammary calculus of growth is planted on apatite filter grain；The trip of fluor-apatite nucleus is not yet formed in fluorine-containing raw water simultaneously
From fluorine ion can carry out ion-exchange reactions and be eliminated by planting the hydroxyl of layer 2 with transition；When the ion exchange is anti-
Transition should be caused to plant the hydroxy radical content reduction in layer 2 and during disequilibrium, because there is concentration T degree in the kernel plantation hydroxyl of layer 1, can
Hydroxyl is set to be migrated from trend transition plantation layer 2.Implant hydroxyapatite filter grain of the present invention can play hierarchical structure
Between synergy, not only substantially increase the fluorine removal ability to fluorine-containing raw water, but also substantially prolongs Implant hydroxyl
Apatite filters the service life of grain.
Its remarkable advantage is the present invention compared with prior art：
One is that the present invention has been initiated suitable for planting method fluorine removal water treatment technology according to the principle of planting method fluorine removal water process
Implant hydroxyapatite filter grain, and disclosure satisfy that the plantation of planting method fluorine removal water treatment technology/except planting process continuous life
The need for product.
Two is that Implant hydroxyapatite of the invention filter grain is employed and forms many layer functions with being incremented by for hydroxy radical content
The particular design of structure, the hydroxyl that the kernel for filtering kernel structure by Implant hydroxyapatite is planted in layer 1 migrates material body, transition
Hydroxyl in plantation layer 2 exchanges material body, the mammary calculus plantation material body three of appearance plantation layer 3 plays synergy successively, so that
Implant hydroxyapatite of the invention filter grain fluorine removal water treatment efficiency has than existing fluorine removal water treatment filter material and significantly carries
It is high.It is of the invention with existing defluoridation filter material Performance comparision referring to table 1.
Three is that Implant hydroxyapatite of the invention filter grain integrates plantation/except plant function, i.e., can either meet fluorine
Apatite nucleus fast-growth and formed fluorapatite crystal mammary calculus plant the need for, fluorapatite crystal mammary calculus is disclosure satisfy that again
The need for plant, plantation/except plant process moves in circles, the service life that Implant hydroxyapatite filters grain is substantially prolongs, and
Without setting the generating apparatus again that Implant hydroxyapatite filters grain in addition.
Four is that Implant hydroxyapatite filter grain of the invention is non-aluminum base material for water treatment, and it is applied to planting method fluorine removal
Water treatment technology is easy to be reliable, and equipment is succinct and easy to maintenance, and operating cost is relatively low.
Five is the problem instant invention overcomes the necessary regular regeneration treatment of traditional absorption type filtrate, easy to use；It is not required to
Chemical reagent is wanted to regenerate, it is safe and reliable.
Table 1：It is of the invention with existing defluoridation filter material Performance comparision
Brief description of the drawings
Fig. 1 is the shape that a kind of Implant hydroxyapatite based on planting method fluorine removal water process proposed by the present invention filters grain
Structure sectional view.
Fig. 2 is the preparation that a kind of Implant hydroxyapatite based on planting method fluorine removal water process proposed by the present invention filters grain
The process step schematic diagram of method.
Fig. 3 is the plantation that a kind of Implant hydroxyapatite based on planting method fluorine removal water process proposed by the present invention filters grain
Before, plantation after, except the contour structures schematic diagram after plant.Wherein：Fig. 3-1 is the profile before the filter grain plantation of Implant hydroxyapatite
Structural representation；Fig. 3-2 is the contour structures schematic diagram after the filter grain plantation of Implant hydroxyapatite；Fig. 3-3 is Implant hydroxyl
Base apatite filter grain is except the contour structures schematic diagram after plant.
Specific embodiment
Specific embodiment of the invention is further described in detail with reference to the accompanying drawings and examples.
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of Implant hydroxy-apatite based on planting method fluorine removal water process proposed by the present invention
Stone filters the preparation method of grain, it is characterised in that the method is filter certainly in the structure based on Implant hydroxyapatite filter grain
The kernel of grain is divided into kernel plantation layer 1, transition plantation layer 2 with being incremented by for hydroxy radical content and appearance is planted to outer surface
Layer 3, is chemical bonding between adjacent two layers；Wherein：The main body of the kernel plantation layer 1 is Implant hydroxyapatite filter grain
Hydroxyl migration material body；The main body of the transition plantation layer 2 exchanges material body for the hydroxyl of Implant hydroxyapatite filter grain；It is described outer
The main body of table plantation layer 3 is the mammary calculus plantation material body of Implant hydroxyapatite filter grain；Hydroxyl in the hydroxyl migration material body
Content be 1.19-1.7%, the hydroxyl exchange material body in hydroxy radical content for 1.7-2.21%, the mammary calculus plantation material body in
Hydroxy radical content be 2.21-2.72%；The Implant hydroxyapatite filters comprising the following steps that for the preparation method of grain：
Step 1, the preparation of the hydroxyl migration material body of Implant hydroxyapatite filter grain：(1) according to the group of hydroxyl migration material body
Point content is in terms of wt%：Weigh 35-50 parts of hydroxyapatite powder, 36-40 parts of attapulgite powder, 10-13 parts swollen
The native powder of profit, 3-9 parts of chemical bond mixture powder and 1-3 parts of bonding agent；(2) it is the hydroxyapatite powder that will (1) weigh, concavo-convex
Rod soil powder, bentonite powder and chemical bond mixture powder are mixed, are crushed, being crossed 140-270 mesh sieves, obtain hydroxyl migration material
The mixed powder of body；(3) the mixed powder of the hydroxyl migration material body that will (2) obtain carries out a balling-up in putting into nodulizer, together
When spray bonding agent, obtain Implant hydroxyapatite filter grain hydroxyl migration material body spherical, formed Implant hydroxyl phosphorus
The kernel plantation layer 1 of lime stone filter grain, the thickness of the kernel plantation layer 1 is 0.5-1.5mm；
Step 2, the hydroxyl of Implant hydroxyapatite filter grain exchanges the preparation of material body and is once bonded：(1) handed over according to hydroxyl
Reload body constituent content in terms of wt%：Weigh 50-65 parts of hydroxyapatite powder, 27-34 parts of attapulgite powder, 6-
The bonding agent of 12 parts of chemical bond mixture powder and 2-4 part；(2) the hydroxyapatite powder that will (1) weigh, attapulgite powder,
Chemical bond mixture powder is mixed, is crushed, being crossed 140-270 mesh sieves, obtains the mixed powder that hydroxyl exchanges material body；(3) will (2) obtain
To hydroxyl exchange the mixed powder of material body and put into the hydroxyl migration of the Implant hydroxyapatite filter grain obtained equipped with step 1
Secondary balling-up is carried out in the nodulizer of the spherical of material body, while spraying bonding agent, hydroxyl is exchanged and is expected that the mixed powder of body is equal
The outer layer of the spherical of the even hydroxyl migration material body for being coated on Implant hydroxyapatite filter grain, forms Implant hydroxyapatite
The spherical of layer 2 is planted in the transition for filtering grain, and the thickness of the transition plantation layer 2 is 0.3-0.5mm, so as to obtain Implant hydroxyl
The hydroxyl of apatite filter grain exchanges the intermediate that material body is bonded with hydroxyl migration material body；
Step 3, the preparation of the mammary calculus plantation material body of Implant hydroxyapatite filter grain and secondary bond：(1) according to mammary calculus kind
The constituent content of plant material body is in terms of wt%：Weigh 65-80 parts nanometer hydroxyapatite powder, 2-4 parts of attapulgite powder,
5-8 parts of titanic oxide nano powder, 10-15 parts of chemical bond mixture powder, 2-5 parts matte plantation agent and 1-3 part glue
Connect agent；(2) nanometer hydroxyapatite powder, attapulgite powder, titanic oxide nano powder, the chemical bond mixture that will (1) weigh
Powder is mixed, is crushed, being crossed 140-270 mesh sieves, obtains the mammary calculus plantation material body mixed powder of Implant hydroxyapatite filter grain
Material；(3) the mixed powder of the mammary calculus plantation material body of the Implant hydroxyapatite filter grain that will (2) obtain is put into and is made equipped with step 2
In the nodulizer of the spherical that the hydroxyl of the Implant hydroxyapatite filter grain for obtaining exchanges material body, while spraying bonding agent, make breast
Stone plantation material body mixed powder is evenly coated at the outer layer of the spherical of the hydroxyl exchange material body of Implant hydroxyapatite filter grain,
The appearance for forming Implant hydroxyapatite filter grain plants the spherical of layer 3, and the thickness of the appearance plantation layer 3 is 0.1-
0.2mm, so as to obtain unsintered Implant hydroxyapatite filter grain；
Step 4, the roasting of Implant hydroxyapatite plantation filter grain：The unsintered Implant hydroxyl that step 3 is obtained
Apatite filters grain, and 4-5h is calcined under 350-400 DEG C of temperature conditionss, obtains a diameter of 1.8-4.4mm, hardness for 2-15N/
Grain, surface roughness Ra are 0.32-20um, porosity for grain finished product is filtered in the Implant hydroxyapatite plantation of 5-35%.
A kind of Implant hydroxyapatite based on planting method fluorine removal water process proposed by the present invention filters the preparation method of grain
Further preferred scheme be：
Chemical bond mixture of the present invention is ethanedioic acid, malonic acid, succinic acid or glutaric acid；Described bentonite powder
Particle diameter be 50-100um；The particle diameter of described attapulgite powder is 50-100um；Described nanometer hydroxyapatite powder
Particle diameter be 50-200nm, the particle diameter of titanic oxide nano powder is for 50-200nm, the particle diameter of the hydroxyapatite powder are
50-100um, matte plantation agent are urea, sodium acid carbonate or ammonium hydrogen carbonate；The bonding agent is carboxymethylcellulose calcium, water
One or more combination in glass or polyvinyl alcohol.
Specific embodiment of the invention.
A kind of filter of Implant hydroxyapatite grain and its preparation side based on planting method fluorine removal water process proposed by the present invention
The specific embodiment of method is further disclosed directly below.The raw material that specific embodiment is used meet Drinking Water in China fluorine removal water process
National standard, kernel plantation layer 1, the transition plantation layer 2 of the structure of Implant hydroxyapatite filter grain and appearance plantation
Hydroxy radical content in layer 3 is measured with starting components proportioning, and finished product passes through elemental analyser test verification.
Step 1, the preparation of the hydroxyl migration material body of Implant hydroxyapatite filter grain：
According to hydroxyl migration material body constituent content in terms of wt%, weigh 35-50 part (including select 35 parts, 40 parts, 45
Part or 50 parts etc.) hydroxyapatite powder, 36-40 parts (including can 40 parts, 39 parts, 38 parts or 36 parts of corresponding selection etc.) it is recessed
Convex rod soil powder, the bentonite powder of 10-13 part (including can 13 parts, 12 parts, 11 parts or 10 parts of corresponding selection etc.), 3-9 parts (wrap
Including can 9 parts, 7 parts, 4.5 parts or 3 parts of corresponding selection etc.) chemical bond mixture powder and 1-3 parts (including can 3 parts of corresponding selection, 2
Part, 1.5 parts or 1 part etc.) bonding agent；
(2) hydroxyapatite powder, attapulgite powder, bentonite powder and the chemical bond mixture powder that will (1) weigh enter
Row mixing, crush, by 140 mesh sieves, obtain the mixed powder of hydroxyl migration material body；
(3) the mixed powder of the hydroxyl migration material body that will (2) obtain carries out a balling-up in putting into nodulizer, while sprinkling
Bonding agent, obtains the spherical of the hydroxyl migration material body of Implant hydroxyapatite filter grain, forms the filter of Implant hydroxyapatite
The kernel plantation layer 1 of grain, the thickness of kernel plantation layer 1 for 0.5-1.5mm (including can corresponding selection 0.5mm, 0.9mm,
1.2mm or 1.5mm etc.).
Step 2, the hydroxyl of Implant hydroxyapatite filter grain exchanges the preparation of material body and is once bonded：
(1) according to the constituent content of hydroxyl exchange material body in terms of wt%：Weigh 50-65 parts (including can 50 parts of corresponding selection,
55 parts, 60 parts or 65 parts etc.) hydroxyapatite powder, 27-34 parts (including can 34 parts, 32 parts, 29 parts or 27 parts of corresponding selection
Deng) attapulgite powder, 6-12 parts (including can 12 parts, 10 parts, 8.5 parts or 6 parts of corresponding selection etc.) chemical bond mixture powder
End and the bonding agent of 2-4 parts (including can 4 parts, 3 parts, 2.5 parts or 4 parts of corresponding selection etc.)；
The hydroxyapatite powder that (2) will (1) weigh, attapulgite powder, chemical bond mixture powder mixed, crushed,
By 140-270 mesh sieves, the mixed powder that hydroxyl exchanges material body is obtained；
(3) the mixed powder that the hydroxyl that will (2) obtain exchanges material body puts into the Implant hydroxy-apatite obtained equipped with step 1
Secondary balling-up is carried out in the nodulizer of the spherical of the hydroxyl migration material body of stone filter grain, while spraying bonding agent, exchanges hydroxyl
Expect that the mixed powder of body is evenly coated at the outer layer of the spherical of the hydroxyl migration material body of Implant hydroxyapatite filter grain, formed
The spherical of layer 2 is planted in the transition of Implant hydroxyapatite filter grain, and the thickness of the transition plantation layer 2 is 0.3-0.5mm (bags
Including can corresponding selection 0.3mm, 0.4mm or 0.5mm), so as to the hydroxyl for obtaining Implant hydroxyapatite filter grain exchange material body with
The intermediate of hydroxyl migration material body bonding；
Step 3, the preparation of the mammary calculus plantation material body of Implant hydroxyapatite filter grain and secondary bond：
(1) according to the constituent content of mammary calculus plantation material body in terms of wt%：Weigh 65-80 parts (including can 65 parts of corresponding selection,
70 parts, 75 parts or 80 parts etc.) nanometer hydroxyapatite powder, 2-4 parts (including can 4 parts, 3 parts, 2.5 parts or 2 parts of corresponding selection
Deng) attapulgite powder, the titanic oxide nano powder of 5-8 parts (including can 8 parts, 7 parts, 6 parts or 5 parts of corresponding selection etc.),
The chemical bond mixture powder of 10-15 parts (including can 15 parts, 14 parts, 12 parts or 10 parts of corresponding selection etc.), 2-5 parts (including can be right
5 parts, 4 parts, 3 parts or 2 parts etc. should be selected) matte plantation agent and 1-3 parts (including can 3 parts, 2 parts, 1.5 parts or 3 parts of corresponding selection
Deng) bonding agent；
(2) nanometer hydroxyapatite powder, attapulgite powder, titanic oxide nano powder, the chemical bonding that will (1) weigh
Agent powder is mixed, is crushed, being crossed 140-270 mesh sieves, obtains the mammary calculus plantation material body mixing of Implant hydroxyapatite filter grain
Powder；
(3) the mixed powder of the mammary calculus plantation material body of the Implant hydroxyapatite filter grain that will (2) obtain is put into equipped with step
In the nodulizer of the spherical that the hydroxyl of Implant hydroxyapatite filter grain obtained in rapid 2 exchanges material body, while bonding agent is sprayed,
The hydroxyl for making mammary calculus plantation material body mixed powder be evenly coated at Implant hydroxyapatite filter grain exchanges the spherical of material body
Outer layer, the appearance for forming Implant hydroxyapatite filter grain plants the spherical of layer 3, and the thickness of the appearance plantation layer 3 is
0.1-0.2mm (including can corresponding selection 0.1mm, 0.15mm or 0.2mm), so as to obtain unsintered Implant hydroxyapatite
Filter grain；
Step 4, the roasting of Implant hydroxyapatite plantation filter grain：
The unsintered Implant hydroxyapatite filter grain that step 3 is obtained, in the condition that sintering temperature is 350-400 DEG C
Lower roasting 4-5h, obtains a diameter of 1.8-4.4mm, hardness for 2-15N/, surface roughness Ra are 0.32-20um, porosity
It is the Implant hydroxyapatite plantation filter grain finished product of 5-35%.
Exemplary embodiments of the invention.
The three-layered node of grain is filtered with a kind of Implant hydroxyapatite based on planting method fluorine removal water process proposed by the present invention
Structure component proportion is further disclosed directly below parameter, preparation method and above-mentioned steps and the condition of exemplary embodiments for exemplary embodiments
It is identical.
Exemplary embodiments 1：
(1) the main body of the kernel plantation layer 1 of Implant hydroxyapatite filter grain is hydroxyl migration material body, is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：35 parts of hydroxyapatite powders, 40 parts of attapulgite powders, 13 bentonite powder, 9 parts of second
Diacid powder and 3 parts of carboxymethylcellulose calciums；By 140 mesh sieves, the thickness for controlling the kernel to plant layer 1 in forming process is
0.5mm；
(2) the main body of the transition plantation layer 2 of Implant hydroxyapatite filter grain expects body for hydroxyl is exchanged, and is exchanged according to hydroxyl
Expect the constituent content of body in terms of wt%：50 parts of hydroxyapatite powders, 34 parts of attapulgite powders, 12 parts of malonic acid powder and 4
Part waterglass；By 140 mesh sieves, the thickness for controlling transition to plant layer 2 in forming process is 0.3mm；
(3) the main body of the appearance plantation layer 3 of Implant hydroxyapatite filter grain is mammary calculus plantation material body, is planted according to mammary calculus
Expect the constituent content of body in terms of wt%：65 parts of nanometer hydroxyapatite powder, 4 parts of attapulgite powders, 8 titanic oxide nanos
End, 15 parts of succinic acid powder, 5 parts of urea and 3 parts of polyvinyl alcohol；Appearance plantation layer 3 is controlled by 140 mesh sieves, in forming process
Thickness be 0.1mm；
Sintering temperature be 350 DEG C under conditions of be calcined 4h；
(5) measuring Implant hydroxyapatite plantation filter grain end properties parameter obtained in exemplary embodiments 1 is：Diameter
For 1.8mm, hardness be 2N/, surface roughness Ra be 20um, porosity be 35%, kernel plant the hydroxy radical content of layer 1 be
1.19%th, transition plantation layer 2 hydroxy radical content is that 1.7%, appearance plantation layer 3 hydroxy radical content is 2.21%.
Exemplary embodiments 2：
(1) the main body of the kernel plantation layer 1 of Implant hydroxyapatite filter grain is hydroxyl migration material body, is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：50 parts of hydroxyapatite powders, 36 parts of attapulgite powders, 10 bentonite powder, 3 part penta
Diacid powder and 1 part of waterglass；By 270 mesh sieves, the thickness for controlling kernel to plant layer 1 in forming process is 1.5mm；
(2) the main body of the transition plantation layer 2 of Implant hydroxyapatite filter grain expects body for hydroxyl is exchanged, and is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：65 parts of hydroxyapatite powders, 27 parts of attapulgite powders, 6 parts of succinic acid powder and 2 parts
Waterglass；By 270 mesh sieves, the thickness for controlling transition to plant layer 2 in forming process is 0.5mm；
(3) the main body of the appearance plantation layer 3 of Implant hydroxyapatite filter grain is mammary calculus plantation material body, is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：80 parts of nanometer hydroxyapatite powder, 2 parts of attapulgite powders, 5 titanic oxide nanos
End, 10 parts of malonic acid powder, 2 parts of sodium acid carbonates and 1 part of waterglass；Appearance plantation layer is controlled by 270 mesh sieves, in forming process
3 thickness is 0.2mm；
Sintering temperature be 400 DEG C under conditions of be calcined 5h；
(5) measuring Implant hydroxyapatite plantation filter grain end properties parameter obtained in exemplary embodiments 2 is：Diameter
For 4.4mm, hardness be 15N/, surface roughness Ra be 0.32um, porosity be 5%, kernel plant the hydroxy radical content of layer 1 be
1.7%th, transition plantation layer 2 hydroxy radical content is that 2.21%, appearance plantation layer 3 hydroxy radical content is 2.72%.
Exemplary embodiments 3：
(1) the main body of the kernel plantation layer 1 of Implant hydroxyapatite filter grain is hydroxyl migration material body, is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：42 parts of hydroxyapatite powders, 38 parts of attapulgite powders, 12 bentonite powder, 6 part third
Diacid powder and 2 parts of carboxymethylcellulose calciums；By 200 mesh sieves, the thickness for controlling kernel to plant layer 1 in forming process is 1mm；
(2) the main body of the transition plantation layer 2 of Implant hydroxyapatite filter grain expects body for hydroxyl is exchanged, and is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：58 parts of hydroxyapatite powders, 28 parts of attapulgite powders, 11 parts of malonic acid powder and 3
Part carboxymethylcellulose calcium；By 200 mesh sieves, the thickness for controlling transition to plant layer 2 in forming process is 0.4mm；
(3) the main body of the appearance plantation layer 3 of Implant hydroxyapatite filter grain is mammary calculus plantation material body, is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：72 parts of nanometer hydroxyapatite powder, 3 parts of attapulgite powders, 7 titanic oxide nanos
End, 13 parts of malonic acid powder, 3.5 parts of sodium acid carbonates and 1.5 parts of carboxymethylcellulose calciums；By 200 mesh sieves, controlled in forming process
The thickness of appearance plantation layer 3 is 0.15mm；
Sintering temperature be 390 DEG C under conditions of be calcined 5h；
(5) measuring Implant hydroxyapatite plantation filter grain end properties parameter obtained in exemplary embodiments 3 is：Diameter
For 2.1mm, hardness be 13N/, surface roughness Ra be 5um, porosity be 15%, kernel plant the hydroxy radical content of layer 1 be
1.43%th, transition plantation layer 2 hydroxy radical content is that 1.97%, appearance plantation layer 3 hydroxy radical content is 2.45%.
Exemplary embodiments 4：
(1) the main body of the kernel plantation layer 1 of Implant hydroxyapatite filter grain is hydroxyl migration material body, is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：35 parts of hydroxyapatite powders, 40 parts of attapulgite powders, 13 bentonite powder, 9 parts of fourths
Diacid powder and 3 parts of polyvinyl alcohol；By 170 mesh sieves, the thickness for controlling kernel to plant layer 1 in forming process is 1.4mm；
(2) the main body of the transition plantation layer 2 of Implant hydroxyapatite filter grain expects body for hydroxyl is exchanged, and is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：54 parts of hydroxyapatite powders, 33 parts of attapulgite powders, 10.5 parts of succinic acid powder and
2.5 parts of waterglass；By 170 mesh sieves, the thickness for controlling transition to plant layer 2 in forming process is 0.46mm；
(3) the main body of the appearance plantation layer 3 of Implant hydroxyapatite filter grain is mammary calculus plantation material body, is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：80 parts of nanometer hydroxyapatite powder, 2 parts of attapulgite powders, 5 titanic oxide nanos
End, 10 parts of malonic acid powder, 2 parts of ammonium hydrogen carbonate and 1 part of polyvinyl alcohol；Appearance plantation is controlled by 170 mesh sieves, in forming process
The thickness of layer 3 is 0.14mm；
Sintering temperature be 380 DEG C under conditions of be calcined 4.5h；
(5) measuring Implant hydroxyapatite plantation filter grain end properties parameter obtained in exemplary embodiments 4 is：Diameter
For 4mm, hardness be 8N/, surface roughness Ra be 10um, porosity be 28%, kernel plant the hydroxy radical content of layer 1 be
1.19%th, transition plantation layer 2 hydroxy radical content is that 1.84%, appearance plantation layer 3 hydroxy radical content is 2.72%.
Exemplary embodiments 5：
(1) the main body of the kernel plantation layer 1 of Implant hydroxyapatite filter grain is hydroxyl migration material body, is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：50 parts of hydroxyapatite powders, 36 parts of attapulgite powders, 10 bentonite powder, 3 parts of second
The mixture of diacid powder and 1 part of waterglass and polyvinyl alcohol；By 230 mesh sieves, kernel plantation layer 1 is controlled in forming process
Thickness is 0.7mm；
(2) the main body of the transition plantation layer 2 of Implant hydroxyapatite filter grain expects body for hydroxyl is exchanged, and is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：61 parts of hydroxyapatite powders, 29 parts of attapulgite powders, 6.5 parts of ethanedioic acid powder and
3.5 parts of waterglass；By 230 mesh sieves, the thickness for controlling transition to plant layer 2 in forming process is 0.35mm；
(3) the main body of the appearance plantation layer 3 of Implant hydroxyapatite filter grain is mammary calculus plantation material body, is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：65 parts of nanometer hydroxyapatite powder, 4 parts of attapulgite powders, 8 titanic oxide nanos
The mixture at end, 15 parts of ethanedioic acid powder, 5 parts of ammonium hydrogen carbonate and 3 parts of carboxymethylcellulose calciums and waterglass；By 230 mesh sieves, into
The thickness for controlling appearance to plant layer 3 during type is 0.15mm；
Sintering temperature be 360 DEG C under conditions of be calcined 4h；
(5) measuring Implant hydroxyapatite plantation filter grain end properties parameter obtained in exemplary embodiments 5 is：Diameter
For 2.4mm, hardness be 4N/, surface roughness Ra be 1.25um, porosity be 12%, kernel plant the hydroxy radical content of layer 1 be
1.7%th, transition plantation layer 2 hydroxy radical content is that 2.07%, appearance plantation layer 3 hydroxy radical content is 2.21%.
Exemplary embodiments 6：
(1) the main body of the kernel plantation layer 1 of Implant hydroxyapatite filter grain is hydroxyl migration material body, is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：47 parts of hydroxyapatite powders, 37 parts of attapulgite powders, 11 bentonite powder, 3.5 parts
Malonic acid powder and 1.5 parts of waterglass；By 200 mesh sieves, the thickness for controlling kernel to plant layer 1 in forming process is 1.15mm；
(2) the main body of the transition plantation layer 2 of Implant hydroxyapatite filter grain expects body for hydroxyl is exchanged, and is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：58 parts of hydroxyapatite powders, 28 parts of attapulgite powders, 11 parts of malonic acid powder and 3
Part waterglass；By 200 mesh sieves, the thickness for controlling transition to plant layer 2 in forming process is 0.42mm；
(3) the main body of the appearance plantation layer 3 of Implant hydroxyapatite filter grain is mammary calculus plantation material body, is migrated according to hydroxyl
Expect the constituent content of body in terms of wt%：76 parts of nanometer hydroxyapatite powder, 2.5 parts of attapulgite powders, 5.5 titanium dioxide are received
Ground rice end, 11 parts of malonic acid powder, 2.5 parts of ammonium hydrogen carbonate and 2.5 parts of waterglass；Controlled by 200 mesh sieves, in forming process outer
The thickness of table plantation layer 3 is 0.18mm；
Sintering temperature be 375 DEG C under conditions of be calcined 4.5h；
(5) measuring Implant hydroxyapatite plantation filter grain end properties parameter obtained in exemplary embodiments 6 is：Diameter
For 3.5mm, hardness be 8N/, surface roughness Ra be 2.5um, porosity be 17%, kernel plant the hydroxy radical content of layer 1 be
1.6%th, transition plantation layer 2 hydroxy radical content is that 1.97%, appearance plantation layer 3 hydroxy radical content is 2.58%.
All explanations not related to belong to techniques known in specific embodiment of the invention, refer to known skill
Art is carried out.
The present invention achieves satisfied trial effect through validation trial.
Above specific embodiment and embodiment are to a kind of kind based on planting method fluorine removal water process proposed by the present invention
The specific support of plant type hydroxyapatite filter grain and preparation method thereof technological thought, it is impossible to which protection model of the invention is limited with this
Enclose, it is every according to technological thought proposed by the present invention, any equivalent variations or equivalent done on the basis of the technical program
Change, still fall within the scope of technical solution of the present invention protection.
Claims (22)
1. a kind of Implant hydroxyapatite based on planting method fluorine removal water process filters grain, it is characterised in that the Implant hydroxyl
From the kernel of filter grain to outer surface in the structure of base apatite filter grain, kernel plantation layer is divided into being incremented by for hydroxy radical content
1st, transition plantation layer 2 and appearance plantation layer 3, are chemical bonding between adjacent two layers；Wherein：
The main body of the kernel plantation layer 1 is the hydroxyl migration material body of Implant hydroxyapatite filter grain；Layer 2 is planted in the transition
Main body for Implant hydroxyapatite filter grain hydroxyl exchange material body；The main body of the appearance plantation layer 3 is Implant hydroxyl
The mammary calculus plantation material body of apatite filter grain；
The content of hydroxyl is that the hydroxy radical content in 1.19-1.7%, hydroxyl exchange material body is in the hydroxyl migration material body
Hydroxy radical content in 1.7-2.21%, mammary calculus plantation material body is 2.21-2.72%.
2. a kind of Implant hydroxyapatite based on planting method fluorine removal water process according to claim 1 filters grain, and it is special
Levy and be, the thickness range of the appearance plantation layer 3 of the Implant hydroxyapatite filter grain is 0.1-0.2mm；The Implant
The thickness range of the transition plantation layer 2 of hydroxyapatite filter grain is 0.3-0.5mm；The Implant hydroxyapatite filters the interior of grain
The thickness range that nuclear species plants layer 1 is 0.5-1.5mm.
3. a kind of Implant hydroxyapatite based on planting method fluorine removal water process according to claim 2 filters grain, and it is special
Levy and be, the constituent content of the mammary calculus plantation material body is in terms of wt%：Nanometer hydroxyapatite powder, 2-4 including 65-80
Attapulgite powder, the titanic oxide nano powder of 5-8, the chemical bond mixture of 10-15, the matte plantation agent of 2-5 and 1-3's is viscous
Connect agent.
4. a kind of Implant hydroxyapatite based on planting method fluorine removal water process according to claim 3 filters grain, and it is special
Levy and be, the hydroxyl exchanges the constituent content of material body in terms of wt%：Hydroxyapatite powder, 27-34 including 50-65 it is recessed
Convex rod soil powder, the chemical bond mixture and the bonding agent of 2-4 of 6-12.
5. a kind of Implant hydroxyapatite based on planting method fluorine removal water process according to claim 4 filters grain, and it is special
Levy and be, the constituent content of the hydroxyl migration material body is in terms of wt%：Hydroxyapatite powder, 36-40 including 35-50 it is recessed
Convex rod soil powder, the bentonite powder of 10-13, the chemical bond mixture of 3-9 and the bonding agent of 1-3.
6. a kind of Implant hydroxyapatite based on planting method fluorine removal water process according to claim 5 filters grain, and it is special
Levy and be, described chemical bond mixture is ethanedioic acid, malonic acid, succinic acid or glutaric acid.
7. a kind of Implant hydroxyapatite based on planting method fluorine removal water process according to claim 6 filters grain, and it is special
Levy and be, the particle diameter of the nanometer hydroxyapatite powder is 50-200nm.
8. a kind of Implant hydroxyapatite based on planting method fluorine removal water process according to claim 7 filters grain, and it is special
Levy and be, the particle diameter of the attapulgite powder is 50-100um.
9. a kind of Implant hydroxyapatite based on planting method fluorine removal water process according to claim 8 filters grain, and it is special
Levy and be, the particle diameter of the titanic oxide nano powder is 50-200nm.
10. a kind of Implant hydroxyapatite based on planting method fluorine removal water process according to claim 9 filters grain, and it is special
Levy and be, the particle diameter of the hydroxyapatite powder is 50-100um.
A kind of 11. Implant hydroxyapatite filter grains based on planting method fluorine removal water process according to claim 10, its
It is characterised by, the matte plantation agent is urea, sodium acid carbonate or ammonium hydrogen carbonate.
A kind of 12. Implant hydroxyapatite filter grains based on planting method fluorine removal water process according to claim 11, its
It is characterised by, the bonding agent is the one or more combination in carboxymethylcellulose calcium, waterglass or polyvinyl alcohol.
A kind of 13. Implant hydroxyapatite filter grains based on planting method fluorine removal water process according to claim 12, its
It is characterised by, the particle diameter of the bentonite powder is 50-100um.
A kind of 14. Implant hydroxyapatites based on planting method fluorine removal water process filter the preparation method of grain, it is characterised in that should
Method is to be based on filtering the kernel of grain certainly to outer surface in the structure of Implant hydroxyapatite filter grain, with passing for hydroxy radical content
Increase and be divided into kernel plantation layer 1, transition plantation layer 2 and appearance plantation layer 3, be chemical bonding between adjacent two layers；Wherein：
The main body of the kernel plantation layer 1 is the hydroxyl migration material body of Implant hydroxyapatite filter grain；The master of layer 2 is planted in the transition
Body is that the hydroxyl of Implant hydroxyapatite filter grain exchanges material body；The main body of the appearance plantation layer 3 is Implant hydroxy-apatite
The mammary calculus plantation material body of stone filter grain；OH in the hydroxyl migration material body-The content of ion is 1.19-1.7%, hydroxyl exchange
Hydroxy radical content in material body is 1.7-2.21%, mammary calculus plantation expects that the hydroxy radical content in body is 2.21-2.72%；The kind
Plant type hydroxyapatite filters comprising the following steps that for the preparation method of grain：
Step 1, the preparation of the hydroxyl migration material body of Implant hydroxyapatite filter grain：(1) contain according to the component of hydroxyl migration material body
Amount is in terms of wt%：Weigh 35-50 parts of hydroxyapatite powder, 36-40 parts of attapulgite powder, 10-13 parts of bentonite
Powder, 3-9 part of chemical bond mixture powder and 1-3 parts of bonding agent；(2) hydroxyapatite powder, the attapulgite that will (1) weigh
Powder, bentonite powder and chemical bond mixture powder are mixed, are crushed, being crossed 140-270 mesh sieves, obtain hydroxyl migration material body
Mixed powder；(3) the mixed powder of the hydroxyl migration material body that will (2) obtain carries out a balling-up in putting into nodulizer, while spray
Bonding agent is spilt, the spherical of the hydroxyl migration material body of Implant hydroxyapatite filter grain is obtained, Implant hydroxyapatite is formed
The kernel plantation layer 1 of grain is filtered, the thickness of the kernel plantation layer 1 is 0.5-1.5mm；
Step 2, the hydroxyl of Implant hydroxyapatite filter grain exchanges the preparation of material body and is once bonded：(1) exchanged according to hydroxyl and expected
The constituent content of body is in terms of wt%：Weigh 50-65 parts hydroxyapatite powder, 27-34 parts of attapulgite powder, 6-12 parts
Chemical bond mixture powder and 2-4 parts of bonding agent；(2) hydroxyapatite powder, attapulgite powder, the chemistry that will (1) weigh
Bonding agent powder is mixed, is crushed, being crossed 140-270 mesh sieves, obtains the mixed powder that hydroxyl exchanges material body；(3) will (2) obtain
The mixed powder that hydroxyl exchanges material body puts into the hydroxyl migration material body that the Implant hydroxyapatite obtained equipped with step 1 filters grain
Spherical nodulizer in carry out secondary balling-up, while spray bonding agent, make hydroxyl exchange material body mixed powder uniformly wrap
The outer layer of the spherical of the hydroxyl migration material body of Implant hydroxyapatite filter grain is overlayed on, Implant hydroxyapatite filter grain is formed
Transition plant the spherical of layer 2, the thickness of transition plantation layer 2 is 0.3-0.5mm, so as to obtain Implant hydroxy-apatite
The hydroxyl of stone filter grain exchanges the intermediate that material body is bonded with hydroxyl migration material body；
Step 3, the preparation of the mammary calculus plantation material body of Implant hydroxyapatite filter grain and secondary bond：(1) planted according to mammary calculus and expected
The constituent content of body is in terms of wt%：Weigh 65-80 parts of nanometer hydroxyapatite powder, 2-4 parts of attapulgite powder, 5-8
The titanic oxide nano powder of part, 10-15 parts of chemical bond mixture powder, 2-5 parts of matte plantation agent and 1-3 parts of bonding
Agent；(2) nanometer hydroxyapatite powder, attapulgite powder, titanic oxide nano powder, the chemical bond mixture powder that will (1) weigh
End is mixed, is crushed, being crossed 140-270 mesh sieves, obtains the mammary calculus plantation material body mixed powder of Implant hydroxyapatite filter grain；
(3) the mixed powder of the mammary calculus plantation material body of the Implant hydroxyapatite filter grain that will (2) obtain is put into equipped with obtained in step 2
In the nodulizer of the spherical that the hydroxyl of Implant hydroxyapatite filter grain exchanges material body, while spraying bonding agent, make mammary calculus kind
The outer layer of the spherical for expecting the hydroxyl exchange material body that body mixed powder is evenly coated at Implant hydroxyapatite filter grain is planted, is formed
The appearance of Implant hydroxyapatite filter grain plants the spherical of layer 3, and the thickness of the appearance plantation layer 3 is 0.1-0.2mm, from
And obtain unsintered Implant hydroxyapatite filter grain；
Step 4, the roasting of Implant hydroxyapatite plantation filter grain：The unsintered Implant hydroxy-apatite that step 3 is obtained
Stone filters grain, and 4-5h is calcined under 350-400 DEG C of temperature conditionss, obtains a diameter of 1.8-4.4mm, hardness for 2-15N/, table
Surface roughness Ra is 0.32-20um, porosity for grain finished product is filtered in the Implant hydroxyapatite plantation of 5-35%.
A kind of 15. Implant hydroxyapatites based on planting method fluorine removal water process according to claim 14 filter the system of grain
Preparation Method, it is characterised in that described chemical bond mixture is ethanedioic acid, malonic acid, succinic acid or glutaric acid.
A kind of 16. Implant hydroxyapatites based on planting method fluorine removal water process according to claim 15 filter the system of grain
Preparation Method, it is characterised in that the particle diameter of bentonite powder described in step 1 is 50-100um.
A kind of 17. Implant hydroxyapatites based on planting method fluorine removal water process according to claim 16 filter the system of grain
Preparation Method, it is characterised in that the particle diameter of attapulgite powder described in step 1-3 is 50-100um.
A kind of 18. Implant hydroxyapatites based on planting method fluorine removal water process according to claim 17 filter the system of grain
Preparation Method, it is characterised in that the particle diameter of nanometer hydroxyapatite powder described in step 2 is 50-200nm.
A kind of 19. Implant hydroxyapatites based on planting method fluorine removal water process according to claim 18 filter the system of grain
Preparation Method, it is characterised in that the particle diameter of titanic oxide nano powder described in step 3 is 50-200nm.
A kind of 20. Implant hydroxyapatites based on planting method fluorine removal water process according to claim 19 filter the system of grain
Preparation Method, it is characterised in that the particle diameter of hydroxyapatite powder described in step 1-2 is 50-100um.
A kind of 21. Implant hydroxyapatites based on planting method fluorine removal water process according to claim 20 filter the system of grain
Preparation Method, it is characterised in that matte plantation agent is urea, sodium acid carbonate or ammonium hydrogen carbonate described in step 3.
A kind of 22. Implant hydroxyapatites based on planting method fluorine removal water process according to claim 21 filter the system of grain
Preparation Method, it is characterised in that bonding agent described in step 3 is the one kind or several in carboxymethylcellulose calcium, waterglass or polyvinyl alcohol
Plant combination.
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| US4687675A (en) * | 1985-05-20 | 1987-08-18 | Sumitomo Chemical Company | Method for the production of endosseous implants |
| JP2005349313A (en) * | 2004-06-10 | 2005-12-22 | Norio Nokita | Combined body |
| CN101862630A (en) * | 2010-06-29 | 2010-10-20 | 西安理工大学 | Preparation method of hydroxyapatite hollow microsphere in core/shell composite structure |
| CN102502907A (en) * | 2011-10-14 | 2012-06-20 | 江苏永冠给排水设备有限公司 | Production method of attapulgite loaded hydroxyapatite composite defluorination filter bulb |
| CN103948966A (en) * | 2014-05-07 | 2014-07-30 | 柳毅 | Method for preparing retinoic hydroxyapatite bionic compound, and bionic compound |
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