CN109054651A - A kind of preparation method of polishing powder from rare earth - Google Patents
A kind of preparation method of polishing powder from rare earth Download PDFInfo
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- CN109054651A CN109054651A CN201811013520.0A CN201811013520A CN109054651A CN 109054651 A CN109054651 A CN 109054651A CN 201811013520 A CN201811013520 A CN 201811013520A CN 109054651 A CN109054651 A CN 109054651A
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- polishing powder
- fluoride
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- 238000005498 polishing Methods 0.000 title claims abstract description 84
- 239000000843 powder Substances 0.000 title claims abstract description 80
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 44
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 32
- 239000001993 wax Substances 0.000 claims abstract description 22
- -1 Rare earth nitrate Chemical class 0.000 claims abstract description 20
- 150000001298 alcohols Chemical class 0.000 claims abstract description 20
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims abstract description 17
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 17
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 17
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 17
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003208 petroleum Substances 0.000 claims abstract description 17
- 239000008117 stearic acid Substances 0.000 claims abstract description 17
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 16
- 235000019441 ethanol Nutrition 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 20
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 13
- 239000000839 emulsion Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 239000007864 aqueous solution Substances 0.000 claims description 10
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 239000006210 lotion Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 238000003828 vacuum filtration Methods 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 4
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 claims description 4
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 241000238631 Hexapoda Species 0.000 claims description 2
- WMOHXRDWCVHXGS-UHFFFAOYSA-N [La].[Ce] Chemical compound [La].[Ce] WMOHXRDWCVHXGS-UHFFFAOYSA-N 0.000 claims description 2
- 235000019445 benzyl alcohol Nutrition 0.000 claims description 2
- 239000004203 carnauba wax Substances 0.000 claims description 2
- 235000013869 carnauba wax Nutrition 0.000 claims description 2
- AMKLQLYNAGNCJE-UHFFFAOYSA-N cerium(3+);lanthanum(3+);hexanitrate Chemical compound [La+3].[Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O AMKLQLYNAGNCJE-UHFFFAOYSA-N 0.000 claims description 2
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 235000003270 potassium fluoride Nutrition 0.000 claims description 2
- 239000011698 potassium fluoride Substances 0.000 claims description 2
- 235000013024 sodium fluoride Nutrition 0.000 claims description 2
- 239000011775 sodium fluoride Substances 0.000 claims description 2
- 239000003760 tallow Substances 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- 241000158728 Meliaceae Species 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 125000001153 fluoro group Chemical group F* 0.000 claims 1
- 229910017604 nitric acid Inorganic materials 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 239000011521 glass Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 11
- 241001465754 Metazoa Species 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract description 2
- 239000012164 animal wax Substances 0.000 abstract description 2
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 abstract description 2
- 239000012165 plant wax Substances 0.000 abstract description 2
- 230000001376 precipitating effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 10
- 238000007517 polishing process Methods 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- 239000003082 abrasive agent Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229910052684 Cerium Inorganic materials 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000005357 flat glass Substances 0.000 description 3
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 229910000420 cerium oxide Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000003682 fluorination reaction Methods 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical group [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical group F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- VPJQDYNOVJRQLN-UHFFFAOYSA-N [O-2].[La+3].[Ce+3].[F].[O-2].[O-2] Chemical compound [O-2].[La+3].[Ce+3].[F].[O-2].[O-2] VPJQDYNOVJRQLN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The present invention relates to a kind of preparation methods of polishing powder from rare earth, belong to polishing grinding technical field.Rare earth nitrate solution and stearic acid are under the catalytic action of sodium hydroxide in the present invention, generate rare-earth stearate precipitating, the auxiliary additives such as wax powder, fluoride, petroleum sulfonate, alcohols material are wherein added, keeps the polishing powder thermal stability of preparation good, will not cause to scratch in glass surface；A small amount of petroleum sulfonate is added in polishing powder, layer protecting film can be formed being polished surface after polishing, prevent the corrosion for being polished surface by hand perspiration；A small amount of fluoride is added in polishing powder, can make to be polished surface has the effect for sending out blue light micro-；Appropriate alcohols material is added in polishing powder, it can guarantee the uniformity of entire polishing powder, the brightness for being polished surface can be improved simultaneously, auxiliary element of some animal and plant waxes as polishing powder is added in polishing powder, glossy fine and smooth sense, the enhancing that polishing powder can be enhanced are polished the brightness on surface, and polishing effect is good.
Description
Technical field
The present invention relates to a kind of preparation methods of polishing powder from rare earth, belong to polishing grinding technical field.
Background technique
Currently, the glass cover-plate of the electronic products such as mobile phone, tablet computer and liquid crystal display is required to throw by chemical machinery
The realization of light process is surface flattening, while improving surface smoothness.With the continuous upgrading of electronic product quality, especially
The extensive use of ito glass, planarization and smoothness requirements to glass surface also step up, this is just to glass surface polishing
Propose higher technical requirements.
Industrial glass polishes single unit system mainly by Workpiece carrier, the platform of storing polishing pad and slurry feeder three
Divide and is combined into.When chemically-mechanicapolish polishing to glass material, workpiece is rotated under the drive of carrier, pressure head with
On the polishing pad being equally rotating under certain pressure effect, the polishing slurries being made of abrasive material and chemical solution are in workpiece
It is flowed between the two with polishing pad.At this point, due to chemical substance and abrasive material and workpiece surface generation hydrolysis or corruption in slurry
The chemical reaction such as erosion forms one layer of oxidation film easily removed in workpiece surface.Later with the machine of abrasive material and polishing pad in slurry
This tunic is removed in tool effect, and is flowed away with polishing slurries, so that workpiece exposes new surface.Hereafter polishing slurries are undergone again
Chemical attack and mechanism, be removed again.Circulation carries out above-mentioned polishing slurries and acts on the chemical machinery of workpiece, just
Complete the chemically mechanical polishing to workpiece.Polishing efficiency mainly determined by the polishing activity and precision of abrasive material, cerium-rich rare earth
Polishing powder is the polish abrasive being most widely used in current industrial glass polishing process.
High-cerium rare-earth polishing powder depends mainly on the chemical activity and polished of its own to the polishing characteristic of glass material
Mechanical abrasive action in journey, the high-cerium rare-earth polishing powder prepared by suitable synthesis condition, contained cerium oxide is to oxidation
Silicon has high chemical polishing activity, have if existing simultaneously the mixed rare-earth oxide such as fluorine cerium lanthanum oxide in polishing powder compared with
High pellet hardness ensure that under mechanical abrasive action during the polishing process, the stability of polishing powder grain graininess, to improve
Polishing powder service life cycle.
Currently, how polishing powder in the market on application performance improves polishing speed, widespread practice if primarily focusing on
It is the grain graininess for improving polishing powder, by increasing the mechanism in polishing process to improve polishing speed, traditional mode of production is dilute
It is easy to reunite present in the method for native cerium based relief polishing powder, average grain diameter is big, particle diameter distribution is wide, sphericity is poor and production cost is high etc.
Disadvantage.Therefore, it deposits to be easy to cause to scratch in glass surface during the polishing process and is easy sedimentation etc. with polishing powder in polishing process
Applied defect.
Summary of the invention
The technical problems to be solved by the invention: it is easy to cause in glass surface during the polishing process for existing polishing powder
The problem with polishing effect difference is scratched, a kind of preparation method of polishing powder from rare earth is provided.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
According to parts by weight, 20~26 parts of rare earth nitrate solutions, 30~40 parts of stearic acid, 5~15 parts of wax powders, 1~6 are weighed respectively
Part fluoride, 1~3 part of mass fraction are 0.1% petroleum sulfonate, 1~3 part of alcohols material, 0.1~0.6 part of concentration are
Stearic acid, wax powder, fluoride, mass fraction are 0.1% petroleum sulfonate, alcohols object by the sodium hydrate aqueous solution of 1.0mol/L
Matter, rare earth nitrate solution are stirred, and obtain multiple emulsion, and at the uniform velocity dropwise addition concentration is water-soluble for the sodium hydroxide of 1.0mol/L
Liquid, 20~30min of constant temperature at being 50~60 DEG C in temperature, obtains suspension, filters while hot, obtain filter residue, by filter residue deionized water
Washing 3~5 times, filter residue after must washing will be that 1~2h is dried at 80~90 DEG C after filter residue vacuum filtration after washing and in temperature,
Filter residue must be dried, by dry filter residue calcination processing, cooled to room temperature is to get polishing powder from rare earth.
The rare earth nitrate solution is lanthanum nitrate cerium solution, and wherein the mass ratio of lanthanum cerium is 1: 4.
The wax powder is any in paraffin powder, crystallite wax powder, carnauba wax powder, insect wax powder and Japanese haze tallow powder
Combination.
The fluoride is one of ammonium fluoride, sodium fluoride or potassium fluoride.
The alcohols material is one of methanol, ethyl alcohol, benzyl alcohol and ethylene glycol.
The stir process be 65~75 DEG C in temperature at stearic acid is melted, obtain lotion, wax powder, fluorination be added
Object, mass fraction are 0.1% petroleum sulfonate, alcohols material, stir 20~30min in the case where revolving speed is 100~160r/min, obtain
Rare earth nitrate solution is added in mixed emulsion, is 65~75 DEG C in temperature, revolving speed is that 20~30min is stirred under 80~100r/min.
The calcination processing be placed in resistance furnace be 600~900 DEG C in temperature at calcine 1~3h.
The present invention is compared with other methods, and advantageous effects are:
(1) rare earth nitrate solution and stearic acid generate rare-earth stearate precipitating under the catalytic action of sodium hydroxide in the present invention,
The auxiliary additives such as wax powder, fluoride, petroleum sulfonate, alcohols material are wherein added, keep the polishing powder thermal stability of preparation good,
Will not cause to scratch in glass surface, and polishing effect is good, have good chemical stability, at the working temperature abrasive material not with
Surface is thrown to chemically react；Stearic acid has good lubricity and good brightener, has under room temperature good
A small amount of petroleum sulfonate is added in chemical stability in polishing powder, can form one layer of protection being polished surface after polishing
Film prevents the corrosion for being polished surface by hand perspiration；A small amount of fluoride is added in polishing powder, fluoride exists during the polishing process
It is polished surface to chemically react, can make to be polished surface has the effect for sending out blue light micro-；Appropriate alcohols is added in polishing powder
Substance, it is ensured that the uniformity of entire polishing powder, while the brightness for being polished surface can be improved, it is added in polishing powder
Auxiliary element of some animal and plant waxes as polishing powder, glossy fine and smooth sense, the enhancing that polishing powder can be enhanced are polished surface
Brightness；
(2) addition of fluoride forms spherical little particle so that particle is refined, and reduces reunion in the present invention, by
In fluorine element in conjunction with the lanthanum atom being solid-solubilized in ceria lattice, so that lanthanum is precipitated in ceria structure cell, in crystal boundary
Or sub boundary forms little particle, hinders the reunion of cerium oxide particle.
Specific embodiment
According to parts by weight, weigh respectively 20~26 parts of rare earth nitrate solutions, 30~40 parts of stearic acid, 5~15 parts of wax powders,
1~6 part of fluoride, 1~3 part of mass fraction are 0.1% petroleum sulfonate, 1~3 part of alcohols material, 0.1~0.6 part of concentration are
Stearic acid is melted at being 65~75 DEG C in temperature, obtains lotion, wax powder, fluorination is added by the sodium hydrate aqueous solution of 1.0mol/L
Object, mass fraction are 0.1% petroleum sulfonate, alcohols material, stir 20~30min in the case where revolving speed is 100~160r/min, obtain
Rare earth nitrate solution is added in mixed emulsion, is 65~75 DEG C in temperature, and revolving speed is that 20~30min is stirred under 80~100r/min,
Multiple emulsion, at the uniform velocity dropwise addition concentration be 1.0mol/L sodium hydrate aqueous solution, temperature be 50~60 DEG C at constant temperature 20~
30min obtains suspension, filters while hot, obtains filter residue, and filter residue is washed with deionized 3~5 times, and filter residue after must washing will wash
It is dry 1~2h at 80~90 DEG C after filter residue is filtered by vacuum afterwards and in temperature, obtains dry filter residue, dry filter residue is placed in resistance furnace
In temperature be 600~900 DEG C at calcine 1~3h, cooled to room temperature is to get polishing powder from rare earth.
Example 1
According to parts by weight, 20 parts of rare earth nitrate solutions, 30 parts of stearic acid, 5 parts of wax powders, 1 part of fluoride, 1 part of matter are weighed respectively
Amount score is 0.1% petroleum sulfonate, the sodium hydrate aqueous solution that 1 part of alcohols material, 0.1 part of concentration are 1.0mol/L, in temperature
It is to melt stearic acid at 65 DEG C, obtains lotion, it is 0.1% petroleum sulfonate, alcohols object that wax powder, fluoride, mass fraction, which is added,
Matter stirs 20min in the case where revolving speed is 100r/min, obtains mixed emulsion, rare earth nitrate solution is added, and is 65 DEG C in temperature, revolving speed
To stir 20min under 80r/min, multiple emulsion is obtained, the sodium hydrate aqueous solution that concentration is 1.0mol/L is at the uniform velocity added dropwise, in temperature
It is constant temperature 20min at 50 DEG C, obtains suspension, filter while hot, obtain filter residue, filter residue is washed with deionized 3 times, is filtered after must washing
Slag will be dry 1h at 80 DEG C after filter residue vacuum filtration after washing and in temperature, obtain dry filter residue, dry filter residue is placed in resistance
1h is calcined at being 600 DEG C in temperature in furnace, cooled to room temperature is to get polishing powder from rare earth.
Example 2
According to parts by weight, 23 parts of rare earth nitrate solutions, 35 parts of stearic acid, 10 parts of wax powders, 3 parts of fluorides, 2 parts of matter are weighed respectively
Amount score is 0.1% petroleum sulfonate, the sodium hydrate aqueous solution that 2 parts of alcohols materials, 0.3 part of concentration are 1.0mol/L, in temperature
It is to melt stearic acid at 70 DEG C, obtains lotion, it is 0.1% petroleum sulfonate, alcohols object that wax powder, fluoride, mass fraction, which is added,
Matter stirs 25min in the case where revolving speed is 130r/min, obtains mixed emulsion, rare earth nitrate solution is added, and is 70 DEG C in temperature, revolving speed
To stir 25min under 90r/min, multiple emulsion is obtained, the sodium hydrate aqueous solution that concentration is 1.0mol/L is at the uniform velocity added dropwise, in temperature
It is constant temperature 25min at 55 DEG C, obtains suspension, filter while hot, obtain filter residue, filter residue is washed with deionized 4 times, is filtered after must washing
Slag will be dry 1.5h at 85 DEG C after filter residue vacuum filtration after washing and in temperature, obtain dry filter residue, dry filter residue is placed in electricity
2h is calcined at being 750 DEG C in temperature in resistance furnace, cooled to room temperature is to get polishing powder from rare earth.
Example 3
According to parts by weight, 26 parts of rare earth nitrate solutions, 40 parts of stearic acid, 15 parts of wax powders, 6 parts of fluorides, 3 parts of matter are weighed respectively
Amount score is 0.1% petroleum sulfonate, the sodium hydrate aqueous solution that 3 parts of alcohols materials, 0.6 part of concentration are 1.0mol/L, in temperature
It is to melt stearic acid at 75 DEG C, obtains lotion, it is 0.1% petroleum sulfonate, alcohols object that wax powder, fluoride, mass fraction, which is added,
Matter stirs 30min in the case where revolving speed is 160r/min, obtains mixed emulsion, rare earth nitrate solution is added, and is 75 DEG C in temperature, revolving speed
To stir 30min under 100r/min, multiple emulsion is obtained, the sodium hydrate aqueous solution that concentration is 1.0mol/L is at the uniform velocity added dropwise, in temperature
Degree is constant temperature 30min at 60 DEG C, obtains suspension, filters while hot, obtain filter residue, filter residue is washed with deionized 5 times, after obtaining washing
Filter residue will be dry 2h at 90 DEG C after filter residue vacuum filtration after washing and in temperature, obtain dry filter residue, dry filter residue is placed in electricity
3h is calcined at being 900 DEG C in temperature in resistance furnace, cooled to room temperature is to get polishing powder from rare earth.
Polishing powder from rare earth prepared by the present invention and commercially available polishing powder are detected, specific testing result such as following table table 1:
Detection method:
All polishing powders carry out 3 kilograms of polishing powders of performance comparison by same condition and are added in 30L water, stir 10min, mistake
After 200 meshes, polishing experiments are carried out in domestic certain factory's mobile phone glass polishing producing line.Polishing machine platform model 16B, polished glass 5
Very little healthy and free from worry GG4, revolving speed 200rpm, polishing time 30min.Each sample take polishing 100 sheet glass after the 101st to 600 into
Row detection, comparison thickness of cutting, scuffing situation, degree of cleaning, service life, specific testing result are shown in Table 1.
Thickness of cutting is the mean value of polishing front and back glass thickness variations.
Yield is surface quality, has being included into for scuffing bad.That is the yields of every group of 500 sheet glass of detection comparison.
Cleaning is the percentage that the fraction defective detected after being often cleaned by ultrasonic accounts for every group of 500 sheet glass.
The case where service life is polishing experiments front and back, and polishing powder sample granularity declines.
1 polishing powder from rare earth performance characterization of table
Polishing powder from rare earth prepared by the present invention as shown in Table 1, thickness of cutting is big, yields is higher, promotes polishing efficiency.With wide
Wealthy market value and application prospect.
Claims (7)
1. a kind of preparation method of polishing powder from rare earth, it is characterised in that specific steps are as follows:
According to parts by weight, 20~26 parts of rare earth nitrate solutions, 30~40 parts of stearic acid, 5~15 parts of wax powders, 1~6 are weighed respectively
Part fluoride, 1~3 part of mass fraction are 0.1% petroleum sulfonate, 1~3 part of alcohols material, 0.1~0.6 part of concentration are
Stearic acid, wax powder, fluoride, mass fraction are 0.1% petroleum sulfonate, alcohols object by the sodium hydrate aqueous solution of 1.0mol/L
Matter, rare earth nitrate solution are stirred, and obtain multiple emulsion, and at the uniform velocity dropwise addition concentration is water-soluble for the sodium hydroxide of 1.0mol/L
Liquid, 20~30min of constant temperature at being 50~60 DEG C in temperature, obtains suspension, filters while hot, obtain filter residue, by filter residue deionized water
Washing 3~5 times, filter residue after must washing will be that 1~2h is dried at 80~90 DEG C after filter residue vacuum filtration after washing and in temperature,
Filter residue must be dried, by dry filter residue calcination processing, cooled to room temperature is to get polishing powder from rare earth.
2. a kind of preparation method of polishing powder from rare earth according to claim 1, it is characterised in that the nitric acid rare earth is molten
Liquid is lanthanum nitrate cerium solution, and wherein the mass ratio of lanthanum cerium is 1: 4.
3. a kind of preparation method of polishing powder from rare earth according to claim 1, it is characterised in that the wax powder is paraffin
Any combination in powder, crystallite wax powder, carnauba wax powder, insect wax powder and Japanese haze tallow powder.
4. a kind of preparation method of polishing powder from rare earth according to claim 1, it is characterised in that the fluoride is fluorine
Change one of ammonium, sodium fluoride or potassium fluoride.
5. a kind of preparation method of polishing powder from rare earth according to claim 1, it is characterised in that the alcohols material is
One of methanol, ethyl alcohol, benzyl alcohol and ethylene glycol.
6. a kind of preparation method of polishing powder from rare earth according to claim 1, it is characterised in that the stir process is
Stearic acid is melted at being 65~75 DEG C in temperature, obtains lotion, it is 0.1% mahogany acid that wax powder, fluoride, mass fraction, which is added,
Salt, alcohols material stir 20~30min in the case where revolving speed is 100~160r/min, obtain mixed emulsion, rare earth nitrate solution is added,
It is 65~75 DEG C in temperature, revolving speed is that 20~30min is stirred under 80~100r/min.
7. a kind of preparation method of polishing powder from rare earth according to claim 1, it is characterised in that the calcination processing is
Be placed in resistance furnace temperature be 600~900 DEG C at calcine 1~3h.
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| CN201811013520.0A CN109054651B (en) | 2018-08-31 | 2018-08-31 | Preparation method of rare earth polishing powder |
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| CN201811013520.0A CN109054651B (en) | 2018-08-31 | 2018-08-31 | Preparation method of rare earth polishing powder |
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| CN109054651B CN109054651B (en) | 2020-10-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110591418A (en) * | 2019-10-21 | 2019-12-20 | 中昊黑元化工研究设计院有限公司 | Equipment and method for preparing carbon black by plasma countercurrent cracking of gaseous hydrocarbon |
| CN112645636A (en) * | 2020-12-10 | 2021-04-13 | 郑州艾克思建材有限公司 | Composite efficient brightener and preparation method thereof |
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| SU920060A1 (en) * | 1980-06-13 | 1982-04-15 | Предприятие П/Я Р-6670 | Method of producing polishing powder |
| CN101475777A (en) * | 2008-11-07 | 2009-07-08 | 上海华明高纳稀土新材料有限公司 | High precision rare earth polishing powder and preparation thereof |
| CN105505226A (en) * | 2015-12-02 | 2016-04-20 | 包头市新源抛光粉有限公司 | Rare earth polishing powder and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU920060A1 (en) * | 1980-06-13 | 1982-04-15 | Предприятие П/Я Р-6670 | Method of producing polishing powder |
| CN101475777A (en) * | 2008-11-07 | 2009-07-08 | 上海华明高纳稀土新材料有限公司 | High precision rare earth polishing powder and preparation thereof |
| CN105505226A (en) * | 2015-12-02 | 2016-04-20 | 包头市新源抛光粉有限公司 | Rare earth polishing powder and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110591418A (en) * | 2019-10-21 | 2019-12-20 | 中昊黑元化工研究设计院有限公司 | Equipment and method for preparing carbon black by plasma countercurrent cracking of gaseous hydrocarbon |
| CN112645636A (en) * | 2020-12-10 | 2021-04-13 | 郑州艾克思建材有限公司 | Composite efficient brightener and preparation method thereof |
| CN112645636B (en) * | 2020-12-10 | 2022-06-21 | 郑州艾克思建材有限公司 | Composite efficient brightener and preparation method thereof |
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| CN109054651B (en) | 2020-10-30 |
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