CN106957151A - Soda lime borosilicate hollow glass micropearl and its production method containing rare earth - Google Patents
Soda lime borosilicate hollow glass micropearl and its production method containing rare earth Download PDFInfo
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- CN106957151A CN106957151A CN201610028814.5A CN201610028814A CN106957151A CN 106957151 A CN106957151 A CN 106957151A CN 201610028814 A CN201610028814 A CN 201610028814A CN 106957151 A CN106957151 A CN 106957151A
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- hollow glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C12/00—Powdered glass; Bead compositions
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/10—Forming beads
- C03B19/107—Forming hollow beads
Abstract
Soda lime borosilicate hollow glass micropearl of the invention containing rare earth and its production method, the primary chemical composition of the hollow glass micropearl is silica (SiO2) 65~75wt%, calcium oxide (CaO) 11~14wt%, sodium oxide molybdena (Na2O) 5~7wt%, boron oxide (B2O3) 6~8wt%, 0.3~0.8wt% of sulfate, rare earth oxide (Re2O3) 0.1~1wt%.Rare earth oxide is especially added in recipe ingredient, compression strength, anti-shearing force and the anti-impact force of hollow glass micropearl can be improved, using more convenient, application field is wider.The soda lime borosilicate hollow glass micropearl containing rare earth using solid phase method and liquid phase method production, can obtain the higher product of compression strength.
Description
Technical field
The present invention relates to a kind of hollow glass micropearl, more particularly to a kind of hollow glass of the soda lime borosilicate containing rare earth
Glass microballon and its production method.
Background technology
Hollow glass micropearl is a kind of new type functional inorganic powder material, and its particle diameter is small, and maximum particle diameter is less than 200um,
Each particulate is spherical in open circles, and cavity contains micro inert gas or in micro-vacuum state.Hollow glass micropearl has
Density is small, packing coefficient is big, compression strength is high, with tropism is good, oil absorbency is low, heat-insulated, sound insulation, electric insulation, it is corrosion-resistant,
Chemical stability is high, good fluidity the features such as, as functional filler be applied to plastic products, electric wire, rubber,
In the products such as thermal insulation coatings, thermal insulation ceramicses, lightweight concrete, light-weight high-polymer material, product strength can be improved, improve system
Product performance, reduction product weight, saving energy resource consumption.In building materials, machinery, electronics, light industry, automobile, ship, boat
The industrial circles such as empty space flight and oil exploitation are with a wide range of applications.
Hollow glass micropearl can be obtained by two methods, and one kind is to sort to extract from flyash, and another is people
Work is synthesized.The former impurity is more, color heavy, granularity is big, particle size uniformity is poor, compression strength is low, single varieties, and have impact on makes
With performance and use scope.The latter is to utilize inorganic mineral and the artificial synthesized white hollow particulate of inorganic salts, and neat appearance is equal
Even, particle size range is small, compression strength is high, thus it is possible to vary technological parameter produces a variety of differentiation kinds, to meet various industries
Different demands.So, artificial synthesized hollow glass micropearl turns into the emphasis that world's lightweight filler industry is developed, and with alkali stone
The production and application of grey borosilicate hollow glass micropearl are more universal.
The production method of artificial synthesized soda lime borosilicate hollow glass micropearl has a variety of, powder method, sessile drop method, molten
Glue method, spray drying process etc., but sum up and can be divided into two kinds of solid phase method and liquid phase method.Solid phase method is with the work of Minnesota Mining and Manufacturing Company
Skill form is representative, is, by formula inorganic salts and mineral matter solid phase mixing and high-temperature fusion, fine glass to be ground into after cooling solid
Granular powder, is then fed into high temperature spheroidizing furnace calcining, carries out second melting, expanding gas are discharged, during molten particles are expanded to
Sky, and it is circle to modify regular hollow shell automatically, it is then rapid to carry out cooling and shaping, obtain the hollow glass of soda lime borosilicate
Glass microballon powder.Liquid phase method, using the process form of Pq Corp. of the U.S. as representative, is that formula inorganic salts and mineral matter are added water and are mixed into
Slurries, are then spray-dried, and obtain tiny regular precursor powder, are re-fed into high temperature spheroidizing furnace calcining, and melting turns brilliant glass
Glass, while discharging expanding gas, particulate expandable is hollow, through cooling and shaping, obtains soda lime borosilicate hollow glass micro-
Pearl powder.
Soda lime borosilicate hollow glass micropearl can be obtained by different production methods, but main chemical compositions and be contained
Amount is essentially the same.By mass percentage：Silica (SiO2) 70~80%；Calcium oxide (CaO) 4~15%；Sodium oxide molybdena (Na2O)
4~7%；Boron oxide (B2O3) 4~8%.And contain a small amount of other alkaline earth oxides (RO) and alkali metal oxide (R2O)。
Soda lime borosilicate hollow glass micropearl containing mentioned component, 0.12~0.65g/cm of real density3, D50 20~80um of particle diameter,
1.2~120MPa of static pressure compression strength.The density of hollow glass micropearl is big, and compression strength is high；Density is small, and compression strength is low.
Density is 0.13g/cm3Soda lime borosilicate hollow glass micropearl, compression strength is only 1.8MPa；Density is 0.15g/cm3,
Compression strength is 2.1MPa；Density is 0.2g/cm3, compression strength is 3.5MPa；Density is 0.35g/cm3, compression strength
For 21MPa；Density is 0.45g/cm3, compression strength is less than 42MPa；Density reaches 0.65g/cm3, compression strength could reach
To 120MPa.Application of the hollow glass micropearl in material product, main purpose is lightization product, increase product strength.By sky
Heart glass microballoon is made that density is relatively low, and it is the desired product obtained of user to improve its compression strength as far as possible.
Compression strength is to weigh one of important technology index of hollow glass micropearl, and user is always wanted in hollow glass powder
In the case of volume density is less, the higher the better for compression strength.Especially in actual applications, when material is mixed the shearing force that produces and
Frictional force often causes the broken of hollow glass micropearl, reduces its performance.So market hollow glass micropearl on sale is often
Rear dispensing form is used in product it is required that adding, mechanical agitation and strong shear process are reduced as far as possible, to avoid hollow glass micropearl
Breakage.Although in strict accordance with requiring to use hollow glass micropearl, the breakage rate of microballon also can be more than more than 10%.Hollow glass
The particularity of glass microballon application method, can influence its wider popularization and application, be badly in need of further improving hollow glass micropearl housing
Compression strength, and then improve microballon anti-shearing force and impact resistance.
Published achievement in research shows that rare earth oxide is added in alkali borate glass formula, it is possible to increase glass
Refractive index, reduction dispersive power, improve hardness and softening temperature, improve chemical stability, prevent water and acid erosion, promote
Boron is by [BO3] to [BO4] conversion so that the crosslinking degree increase of network structure, improve the density and intensity of glass.But will
Rare earth oxide is rationally used in the production of soda lime borosilicate hollow glass micropearl, to improve the resistance to compression of hollow glass micropearl
Intensity and anti-shear ability, improve the performance of hollow glass micropearl, there is presently no disclosed patent and relevant report.
The rare earth oxide that the retrieves patent related to hollow glass micropearl has three：CN201010505383.X rare-earth surface modifications
Hollow glass micropearl and preparation method thereof；A kind of hollow glass micropearls of CN201110366001.4 coat the preparation side of rare earth cerium oxide
Method；A kind of preparation method of rare earth oxides of CN201210308986.X/hollow glass micropearl composite.These three patents are all
It is that surface coating modification processing is done to hollow glass micropearl finished product, to improve hollow glass micropearl and non-polar high polymer polymer
Compatibility, and it is not intended as producing the recipe ingredient of hollow glass micropearl, to improve its compression strength and anti-shearing force.
The content of the invention
It is an object of the invention to effectively improve compression strength, the anti-shearing force of soda lime borosilicate hollow glass micropearl
With tolerance impact capacity, especially solve the larger real density of market demand and be less than 0.45g/cm3Hollow glass micro-ball light powder
The problem of body compression strength can not meet use demand and harsh use condition.It is 0.13g/cm by density3Soda lime borosilicic acid
The compression strength of salt hollow glass micropearl heightens 4.5MPa；Density is 0.15g/cm3, compression strength reaches 5.5MPa；Density
For 0.2g/cm3, compression strength reaches 10MPa；Density is 0.35g/cm3, compression strength reaches 35MPa；Density is 0.45
g/cm3, compression strength reaches 50MPa.The ease of use of hollow glass micropearl is improved, the breakage rate during use is reduced,
Expand the application field of hollow glass micropearl.
To achieve the above object, the invention provides a kind of soda lime borosilicate hollow glass micropearl containing rare earth,
Its main chemical compositions is as follows：
Silica (SiO2) 65~75wt%；
Calcium oxide (CaO) 11~14wt%；
Sodium oxide molybdena (Na2O) 5~7wt%；
Boron oxide (B2O3) 6~8wt%；
0.3~0.8wt% of sulfate；
Rare earth oxide (Re2O3) 0.1~1wt%.
In the production complex of soda lime borosilicate hollow glass micropearl containing rare earth, silica uses high-purity stone
English miberal powder or industrial by-product high-purity silicon dioxide powder；Calcium oxide uses high calcium lime stone flour (CaCO3), can also
It is quick lime (CaO), or calcium hydroxide [Ca (OH)2]；Sodium oxide molybdena uses soda ash (Na2CO3) or caustic soda (NaOH),
Either sodium nitrate (NaNO3)；Boron oxide uses boric acid (H3BO3) or borax anhydrous (Na2B4O7), or silico-calcium
Boron stone [Ca2B2(SiO4)2(OH)2]；Sulfate is used as the gasification swelling agent of glass microballoon, can be divalent metal sulfate,
Such as：Calcium sulfate (CaSO4), barium sulfate (BaSO4), magnesium sulfate (MgSO4) or monovalent metal sulfate, such as：Potassium sulfate
(K2SO4), sodium sulphate (Na2SO4)；Rare earth oxide uses the oxide of trivalent rare earth element, such as：Lanthana (La2O3), oxygen
Change cerium (Ce2O3), praseodymium oxide (Pr2O3), neodymia (Nd2O3), select one or two therein, it would however also be possible to employ containing upper
State the nitric acid rare earth or rare earth acetate of rare earth element.
Rare earth oxide is introduced into the raw material complex of soda lime borosilicate hollow glass micropearl, at 1100 DEG C to 1300
Under DEG C molten condition, rare earth oxide can promote boron by [BO3] triangle body is to [BO4] tetrahedral conversion, improve hollow micro-
Pearl housing vitrifying network connection degree, increases casing rigidity.Rare earth oxide occupies net as the modified ion of glass network
Network hole, makes that the network structure of hollow glass micropearl housing is finer and close, and intensity is higher.
Containing 0.1~1wt% of rare earth oxide in soda lime borosilicate hollow glass micropearl of the present invention, preferably 0.2~
0.5wt%.
Soda lime borosilicate hollow glass micropearl of the present invention using sulfate as gasification swelling agent, amount of allocating be 0.3~
0.8wt%, preferably 0.3~0.5wt%.
It is micro- present invention also offers the soda lime borosilicate hollow glass containing rare earth is produced using solid phase method and liquid phase method
The production method of pearl.
A) solid phase method produces the method and steps of the soda lime borosilicate hollow glass micropearl containing rare earth：
Rare earth oxide or its nitrate, acetate are crushed to 5~10um of average grain diameter, require that particle diameter is less than with other
The solid materials such as 0.2mm silica flour, agstone, sodium carbonate are well mixed.
Well mixed above-mentioned material feeding stove is subjected to igneous fusion, 1200~1400 DEG C of stove atmosphere temperature is excellent
Select 1280~1320 DEG C.Melt slurry and flow into watch-quench tank, rapid water quenching cooling, and be disintegrated into tiny particle, particle diameter is less than 2mm.
Water quenching particle is less than 0.5wt% through dewatered drying, free moisture requirement.
Material feeding pulverizer after drying is crushed, and the material of pneumatic separation different-grain diameter, maximum particle diameter is no more than 80um,
Minimum grain size is not less than 2um.Three to four size specification kinds are segmented into by particle size range.
Crush and reach that the material of requirement particle diameter send mode uniformly to send into high temperature spheroidizing furnace respectively again and carries out second melting using wind
Vitrifying, flame temperature is not less than 1400 DEG C, 1100~1350 DEG C of fire box temperature.Sulfate is decomposed at this temperature, is released
Put SO2, make melting solid glass particulate be expanded into it is hollow.The particulate of melting carries out self surface modification, as circular pearl.
The hollow glass micropearl of melting is rapidly introduced into cooling device, carries out air-cooling moulding, and then selection by winnowing collects different-grain diameter
With the powder of different densities, the soda lime borosilicate hollow glass micropearl products of different specifications containing rare earth is obtained.
B) liquid phase method produces the method and steps of the soda lime borosilicate hollow glass micropearl containing rare earth：
Rare earth oxide or its nitrate, acetate are crushed to 5~10um of average grain diameter.Quartz sand is crushed to average
5~20um of particle diameter.
Milk of lime is made using quick lime or calcium hydroxide as raw material in calcium oxide, and passes through 100 screen filtrations, goes removal of impurities
Matter.
Sodium oxide molybdena is using caustic soda as raw material, and the stirring that caustic soda and other Water-solubility Materials first are put into first injection milk of lime is held
Dissolved in device, then sequentially add water-insoluble powder, stirring to pulp is well mixed.Slurry solid content 25%~50%, it is excellent
Select 35%~40%.
Above-mentioned slurries send into centrifugal spray dryer, and the atomization drying under 350~500 DEG C of states of hot blast temperature is obtained
Mobility is preferable, the more uniform solid powder of the soda lime borosilicate containing rare earth of fineness ratio.Powder end moisture is less than 2wt%,
Preferably smaller than 0.5wt%.
The solid soda lime borosilicate powder of Geldart-D particle carries out melten glass to high temperature spheroidizing furnace, and flame temperature is not small
In 1350 DEG C, 1100~1300 DEG C of fire box temperature.Sulfate is decomposed at this temperature, discharges SO2, make melten glass microballon
It is expanded into hollow.The microballon of melting carries out self surface modification, as circular pearl.
The hollow glass micropearl of melting is rapidly introduced into cooling device, carries out air-cooling moulding, and then selection by winnowing collects different-grain diameter
With the powder of different densities, the soda lime borosilicate hollow glass micropearl products of different specifications containing rare earth is obtained.
Embodiment
For a further understanding of the present invention, the soda lime borosilicate containing rare earth provided with reference to embodiment the present invention
Hydrochlorate hollow glass micropearl and its production method are illustrated, and protection scope of the present invention is not limited by the following examples.
Embodiment 1
The soda lime borosilicate hollow glass micropearl containing rare earth is produced using solid phase method process form.
Proportion scale：Silica (SiO2) 73wt%, calcium oxide (CaO) 12.5wt%, sodium oxide molybdena (Na2O) 5.8wt%,
Boron oxide (B2O3) 7.5wt%, sulfate 0.5wt%, rare earth oxide (Re2O3) 0.25wt%.
Silica uses SiO2The quartz sand of content >=99%；Calcium oxide uses CaCO3The lime stone of content >=97%；Oxygen
Change sodium and use Na2CO3The soda ash of content >=99%；Boron oxide uses H3BO3The boric acid of content >=99.5%；Sulfate uses potassium sulfate；
Rare earth oxide uses lanthana.
Quartz sand and lime stone are crushed to D50 particle diameter 0.15mm, silica flour and agstone is obtained.
Lanthanum oxide powder is crushed again, D50 particle diameters 8um.
Silica flour, agstone, sodium carbonate, boric acid, potassium sulfate, lanthana are sequentially added into powder mixer to mix
Uniformly, glass kiln igneous fusion is re-fed into, stove bath temperature is controlled at 1300 ± 10 DEG C.
Melting slurry is put into watch-quench tank, and cooling is disintegrated into the irregular glass particle of profile, and particle diameter is less than 2mm, with vibration
Sieve dehydration, is re-fed into drying machine and dries to moisture less than 0.5%.
The dried glass particle of crushing, maximum particle diameter 60um, minimum grain size 2um, air-flow selection by winnowing powder, acquisition 2~
20um, 20~40um, the powder of 40~60um, tri- kinds of particle size ranges.
By the glass powder difference strength feeding high temperature spheroidizing furnace of three kinds of different-grain diameter scopes, second melting, sulfuric acid are carried out
Salt discharges SO2It is expanded into melten glass particulate hollow, self modification is circular in the molten state for microparticle surfaces.High temperature spheroidizing furnace
Fuel uses natural gas, and flame temperature is not less than 1500 ± 10 DEG C, 1250 ± 10 DEG C of fire box temperature.Microballon is in the burner hearth residence time
For 0.3s.
The hollow glass micropearl of melting is continuously introduced into rapidly cooling device using balling furnace combustion tail gas, connect with natural wind
Touch, carry out air-cooled cooling and shaping, then by strength suction and conveying to three-level separator, three kinds of different-grain diameters of collection and different densities
Tiny balloon powder.The solid glass powder of three kinds of particle size ranges, can obtain the soda lime containing rare earth of nine kinds of specification kinds
Borosilicate hollow glass micropearl.
According to the assay method of the anti-isostatic pressed intensity (pneumatic process) of JC/T2285-2014 hollow glass micropearls, city is detected
Field demand is larger, compression strength than more typical five kinds of specification products, as a result as follows：
Density is 0.13g/cm3Hollow glass micropearl, compression strength 3.8MPa；
Density is 0.15g/cm3Hollow glass micropearl, compression strength 5.2MPa；
Density is 0.2g/cm3Hollow glass micropearl, compression strength 9.5MPa；
Density is 0.35g/cm3Hollow glass micropearl, compression strength 29.7MPa；
Density is 0.45g/cm3Hollow glass micropearl, compression strength 45.8MPa.
Embodiment 2
According to embodiment 1, only change the addition of rare earth oxide, supplying lanthanum oxide powder 0.35wt%.Other dispensings
Components unchanged, production method and process control parameter press embodiment 1.By above-mentioned same assay method detection hollow glass micropearl
Compression strength, it is as a result as follows：
Density is 0.13g/cm3Hollow glass micropearl, compression strength 5.1MPa；
Density is 0.15g/cm3Hollow glass micropearl, compression strength 7.3MPa；
Density is 0.2g/cm3Hollow glass micropearl, compression strength 17.5MPa；
Density is 0.35g/cm3Hollow glass micropearl, compression strength 42.3MPa；
Density is 0.45g/cm3Hollow glass micropearl, compression strength 65.5MPa.
Embodiment 3
According to embodiment 1, only change the addition of rare earth oxide, supplying lanthanum oxide powder 0.45wt%.Other dispensings
Components unchanged, production method and process control parameter press embodiment 1.By above-mentioned same assay method detection hollow glass micropearl
Compression strength, it is as a result as follows：
Density is 0.13g/cm3Hollow glass micropearl, compression strength 5.6MPa；
Density is 0.15g/cm3Hollow glass micropearl, compression strength 7.5MPa；
Density is 0.2g/cm3Hollow glass micropearl, compression strength 19.2MPa；
Density is 0.35g/cm3Hollow glass micropearl, compression strength 45.5MPa；
Density is 0.45g/cm3Hollow glass micropearl, compression strength 67.2MPa.
Embodiment 4
According to embodiment 1, rare earth oxide selective oxidation cerium powder is incorporated 0.35wt%.Other food ingredients are constant,
Production method and process control parameter press embodiment 1.The compression strength of hollow glass micropearl is detected by above-mentioned same assay method,
As a result it is as follows：
Density is 0.13g/cm3Hollow glass micropearl, compression strength 4.9MPa；
Density is 0.15g/cm3Hollow glass micropearl, compression strength 7.5MPa；
Density is 0.2g/cm3Hollow glass micropearl, compression strength 17.8MPa；
Density is 0.35g/cm3Hollow glass micropearl, compression strength 41.5MPa；
Density is 0.45g/cm3Hollow glass micropearl, compression strength 62.7MPa.
Embodiment 5
The soda lime borosilicate hollow glass micropearl containing rare earth is produced using liquid phase method process form.
Proportion scale：Silica (SiO2) 73wt%, calcium oxide (CaO) 12.5wt%, sodium oxide molybdena (Na2O) 5.8wt%,
Boron oxide (B2O3) 7.5wt%, sulfate 0.3wt%, rare earth oxide (Re2O3) 0.25wt%.
Silica uses SiO2The quartz sand of content >=99%；Calcium oxide uses the quick lime of CaO content >=90%；Oxygen
Change the solid caustic soda that sodium uses NaOH content >=99%；Boron oxide uses H3BO3The boric acid of content >=99.5%；Sulfate uses sulphur
Sour calcium；Rare earth oxide uses lanthana.
Lanthana is crushed to D50 particle diameters 8um.
Quick lime is digested with 70-80 DEG C of hot water, and milk of lime is made, and passes through 100 screen filtrations, goes the removal of impurity.Stone
Grey breast CaO content 12wt%.
Quartz sand is crushed to D50 particle diameter 10um, fine silica flour is obtained.
Calcium sulfate is crushed to D50 particle diameters 10um.
The milk of lime of constant volume is first injected into stirring container, solid caustic soda, boric acid is sequentially added, stirring and dissolving, then
Lanthana, calcium sulfate and silica flour are sequentially added, stirring to pulp is well mixed.39 ± 2wt% of slurry solid content, if necessary
Concentration is adjusted with water.
Above-mentioned slurries are continuously introduced into centrifugal spray dryer with high-pressure pump, are atomized under 450 ± 5 DEG C of states of hot blast temperature
Dry, drying machine connects two grades of rewinding dedusters, obtain less than 45um and more than 45um two kinds of size specifications containing rare earth
The solid powder of soda lime borosilicate.Powder end moisture 0.5wt%.
Above-mentioned powder is distinguished into Geldart-D particle to high temperature spheroidizing furnace progress melten glass, high temperature spheroidizing furnace fuel uses day
Right gas, 1400 ± 10 DEG C of flame temperature, 1200 ± 10 DEG C of fire box temperature.Sulfate is decomposed at this temperature, discharges SO2,
It is expanded into melten glass particulate hollow.The particulate of melting carries out self surface modification, as circular pearl.Microballon stops in burner hearth
It is 0.4s to stay the time.
The hollow glass micropearl of melting is continuously introduced into rapidly cooling device using balling furnace combustion tail gas, connect with natural wind
Touch, carry out air-cooled cooling and shaping, then by strength suction and conveying to the second-order separation deduster, two kinds of different-grain diameters of collection and different densities
Tiny balloon powder.The solid powder of two kinds of particle size ranges, can obtain the soda lime borosilicate containing rare earth of four specification kinds
Hydrochlorate hollow glass micropearl.But liquid phase method is difficult to make particle diameter less than 15um, and real density is less than 0.2g/cm3Product.
According to the assay method of the anti-isostatic pressed intensity (pneumatic process) of JC/T2285-2014 hollow glass micropearls, city is detected
Field demand is larger, compression strength than more typical two kinds of specification hollow glass micropearls, as a result as follows：
Density is 0.35g/cm3Hollow glass micropearl, compression strength 39.7MPa；
Density is 0.45g/cm3Hollow glass micropearl, compression strength 55.2MPa.
Embodiment 6
According to embodiment 5, the addition of lanthana is improved, 0.35wt% is incorporated.Other food ingredients are constant, producer
Method and process control parameter press embodiment 5.The compression strength of hollow glass micropearl is detected by above-mentioned same assay method, as a result
It is as follows：
Density is 0.35g/cm3Hollow glass micropearl, compression strength 40.1MPa；
Density is 0.45g/cm3Hollow glass micropearl, compression strength 56.3MPa.
Embodiment 7
According to embodiment 5, rare earth oxide selective oxidation cerium is incorporated 0.35wt%.Other food ingredients are constant, production
Method and process control parameter press embodiment 5.The compression strength of hollow glass micropearl, knot are detected by above-mentioned same assay method
Fruit is as follows：
Density is 0.35g/cm3Hollow glass micropearl, compression strength 38.5MPa；
Density is 0.45g/cm3Hollow glass micropearl, compression strength 53.7MPa.
The above is only the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art,
On the premise of instant component mass percent scope is not departed from, some improvements and modifications can also be made, these improve and moistened
Decorations also should be regarded as protection scope of the present invention.
Claims (5)
1. soda lime borosilicate hollow glass micropearl and its production method containing rare earth, it is characterised in that hollow glass micropearl
Main chemical compositions are as follows：
Silica (SiO2) 65~75wt%；
Calcium oxide (CaO) 11~14wt%；
Sodium oxide molybdena (Na2O) 5~7wt%；
Boron oxide (B2O3) 6~8wt%；
0.3~0.8wt% of sulfate；
Rare earth oxide (Re2O3) 0.1~1wt%.
2. the rare earth oxide in hollow glass micropearl according to claim 1 is using the oxide of trivalent rare earth element as original
Material, such as：Lanthana (La2O3), cerium oxide (Ce2O3), praseodymium oxide (Pr2O3), neodymia (Nd2O3), select therein
It is one or two kinds of, it would however also be possible to employ nitric acid rare earth or rare earth acetate containing above-mentioned rare earth element.
3. the rare earth oxide amount of allocating in hollow glass micropearl according to claim 1 is 0.1~1wt%, preferably 0.2~
0.5wt%.
4. the sulfate in hollow glass micropearl according to claim 1 is used as the gasification swelling agent of glass microballoon,
Can be divalent metal sulfate, such as：Calcium sulfate (CaSO4), barium sulfate (BaSO4), magnesium sulfate (MgSO4) or monovalence
Metal sulfate, such as：Potassium sulfate (K2SO4), sodium sulphate (Na2SO4)。
5. the sulfate amount of allocating in hollow glass micropearl according to claim 1 is 0.3~0.8wt%, preferably 0.3~
0.5wt%.
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| CN108947569A (en) * | 2018-08-30 | 2018-12-07 | 盛世瑶兰（深圳）科技有限公司 | A kind of hollow heat insulated construction material of high intensity and its application |
| CN109320074A (en) * | 2018-10-31 | 2019-02-12 | 濮阳市鲁蒙玻璃制品有限公司 | A kind of neutral boron silica glass material and preparation method thereof |
| CN111197124A (en) * | 2020-01-08 | 2020-05-26 | 昆明理工大学 | Method for researching rare earth recovery |
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| CN113502048A (en) * | 2021-05-25 | 2021-10-15 | 中广核俊尔(浙江)新材料有限公司 | Halogen-free flame-retardant nylon 6 material special for high-whiteness yellowing-resistant low-voltage electrical appliance shell |
| CN115449164A (en) * | 2022-08-30 | 2022-12-09 | 安徽合汇金源科技有限公司 | PVC sealing material for refrigerator door and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108947569A (en) * | 2018-08-30 | 2018-12-07 | 盛世瑶兰（深圳）科技有限公司 | A kind of hollow heat insulated construction material of high intensity and its application |
| CN108947569B (en) * | 2018-08-30 | 2021-10-01 | 盛世瑶兰（深圳）科技有限公司 | High-strength hollow heat-insulation building material and application thereof |
| CN109320074A (en) * | 2018-10-31 | 2019-02-12 | 濮阳市鲁蒙玻璃制品有限公司 | A kind of neutral boron silica glass material and preparation method thereof |
| CN111197124A (en) * | 2020-01-08 | 2020-05-26 | 昆明理工大学 | Method for researching rare earth recovery |
| CN111499206A (en) * | 2020-06-04 | 2020-08-07 | 石家庄东昊化工研究院有限公司 | Method for preparing hollow glass microspheres by using silico slag containing fluosilicic acid |
| CN111635140A (en) * | 2020-06-10 | 2020-09-08 | 石家庄东昊化工研究院有限公司 | Method for preparing high-scattering opaque hollow glass microspheres by using sodium fluoride-containing silica slag |
| CN113502048A (en) * | 2021-05-25 | 2021-10-15 | 中广核俊尔(浙江)新材料有限公司 | Halogen-free flame-retardant nylon 6 material special for high-whiteness yellowing-resistant low-voltage electrical appliance shell |
| CN113502048B (en) * | 2021-05-25 | 2023-09-08 | 中广核俊尔(浙江)新材料有限公司 | Special halogen-free flame-retardant nylon 6 material for high-whiteness yellowing-resistant low-voltage electrical appliance shell |
| CN115449164A (en) * | 2022-08-30 | 2022-12-09 | 安徽合汇金源科技有限公司 | PVC sealing material for refrigerator door and preparation method thereof |
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