CN101851438B - A method for preparing white anti-corrosion pigments and fillers by using bauxite beneficiation tailings - Google Patents
A method for preparing white anti-corrosion pigments and fillers by using bauxite beneficiation tailings Download PDFInfo
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- CN101851438B CN101851438B CN201010183153A CN201010183153A CN101851438B CN 101851438 B CN101851438 B CN 101851438B CN 201010183153 A CN201010183153 A CN 201010183153A CN 201010183153 A CN201010183153 A CN 201010183153A CN 101851438 B CN101851438 B CN 101851438B
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- 239000000945 filler Substances 0.000 title claims abstract description 28
- 229910001570 bauxite Inorganic materials 0.000 title claims abstract description 24
- 239000000049 pigment Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005260 corrosion Methods 0.000 title abstract description 7
- 238000001354 calcination Methods 0.000 claims abstract description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 14
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000011734 sodium Substances 0.000 claims abstract description 13
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 13
- 238000000498 ball milling Methods 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 7
- 239000011787 zinc oxide Substances 0.000 claims abstract description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000011574 phosphorus Substances 0.000 claims abstract description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 6
- 229920000137 polyphosphoric acid Polymers 0.000 claims abstract description 6
- 239000011591 potassium Substances 0.000 claims abstract description 6
- 239000000376 reactant Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 5
- 238000006068 polycondensation reaction Methods 0.000 claims description 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 abstract 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 abstract 1
- 229940005657 pyrophosphoric acid Drugs 0.000 abstract 1
- 230000002421 anti-septic effect Effects 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 7
- 238000005187 foaming Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- ZTFZSHLWORMEHO-UHFFFAOYSA-A pentaaluminum;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O ZTFZSHLWORMEHO-UHFFFAOYSA-A 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 102000004160 Phosphoric Monoester Hydrolases Human genes 0.000 description 2
- 108090000608 Phosphoric Monoester Hydrolases Proteins 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 241001606224 Betula ermanii Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910001648 diaspore Inorganic materials 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 235000021321 essential mineral Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012767 functional filler Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000015784 hyperosmotic salinity response Effects 0.000 description 1
- 229910052900 illite Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003701 mechanical milling Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 239000001226 triphosphate Substances 0.000 description 1
- 235000011178 triphosphate Nutrition 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-N triphosphoric acid Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(O)=O UNXRWKVEANCORM-UHFFFAOYSA-N 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 description 1
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- Paints Or Removers (AREA)
Abstract
本发明的目的在于提供一种利用铝土矿选矿尾矿制备白色防腐颜填料的方法。该方法包括：将铝土矿选矿尾矿球磨后，于500-800℃温度下煅烧，将煅烧尾矿与水按重量比1∶3-1∶5在烧杯中混合、搅拌、弃去烧杯底部占烧杯中尾矿质量的5％的黑色较大颗粒；再将磷酸、焦磷酸、聚磷酸、偏磷酸或次磷酸溶液之一按磷与尾矿中除钾、钠外的所有金属元素摩尔比为2-5加入烧杯中与尾矿混合、于80-150℃密封条件下反应4-10小时；最后将反应物于220-400℃缩聚7-18小时；将缩聚物和氧化锌按重量比10∶1-4∶1混合，湿法球磨2-5小时，200-300℃煅烧2-6小时、水洗、球磨，得到的白色粉体即为本发明白色防腐颜填料。其防腐能力强、环保、色白。The purpose of the present invention is to provide a method for preparing white anti-corrosion pigments and fillers by using bauxite beneficiation tailings. The method comprises: after ball milling the bauxite beneficiation tailings, calcining at a temperature of 500-800°C, mixing the calcined tailings and water in a beaker at a weight ratio of 1:3-1:5, stirring, and discarding the bottom of the beaker Larger black particles accounting for 5% of the mass of the tailings in the beaker; and then one of the phosphoric acid, pyrophosphoric acid, polyphosphoric acid, metaphosphoric acid or hypophosphorous acid solution according to the molar ratio of phosphorus to all metal elements in the tailings except potassium and sodium is 2-5 Put it into a beaker and mix it with the tailings, react at 80-150°C for 4-10 hours under sealed conditions; finally, polycondense the reactants at 220-400°C for 7-18 hours; mix the polycondensate and zinc oxide in a weight ratio of 10 : 1-4: 1 mixing, wet ball milling for 2-5 hours, calcining at 200-300°C for 2-6 hours, washing with water, ball milling, the white powder obtained is the white anti-corrosion pigment and filler of the present invention. It has strong anti-corrosion ability, environmental protection and white color.
Description
Technical field
The invention belongs to the trade waste reutilization technology, particularly utilize bauxite to prepare the method for white anticorrosive pigment/filler.
Technical background
Bauxite is to adopt beneficiation method to improve the aluminosilicate waste that bauxite aluminium-silicon produces in than process, having characteristics such as quantum of output is big, fine size, complicated component.Essential mineral is [1] such as diaspore, kaolinite, illite, titaniferous ore, hematite-limonites mutually.Mainly causing color substance has Fe and organism, and organism can be removed through calcining, and Fe is owing to be distributed in a plurality of mineral facies, and each mineral disseminated grain size is thin, embedding cloth relation is complicated, is difficult to slough the iron [2] in the mine tailing with ordinary method such as magnetic separation, pickling etc.Employing high temperature such as Yuan Mingliang, high pressure method can make that the decreasing ratio of Fe reaches [3] more than 90% in the mine tailing, yet this method is high to equipment requirements, and cost of investment is big, are difficult to promote.
Under the prior art level, be difficult to remove impurity such as Fe in the mine tailing, Ti; Thereby the application of mine tailing in fields such as refractory materials, building materials be restricted, and seeking mine tailing large-scale application new way is one of urgent task that solves problems such as mine tailing land seizure amount is big, environmental influence is big.Superpolymer filler demand is big, composition range is wide, and a lot of natural mineral such as kaolin, wollastonite, talcum, tiff etc. all can be used as filler after surface-treated uses.Bauxite contains multiple suitable composition as filler.Hu Yuehua etc. have prepared in superpolymer consistency after to the bauxite surface-treated, have melted powder [4] moist, good dispersivity.Yet this powder also exists saturate problem.We find in mine tailing, to add phosphoric acid and calcine and can brighten the mine tailing colour killing in experiment, and can prepare the filler of serial whiteness through the control calcining temperature.Along with process of industrialization, to filler require increasingly highly, filler also requires it to have conduction, multiple function such as fire-retardant, anticorrosion except possessing the most basic increase-volume characteristic.Traditional anticorrosive pigment/filler has red lead, zinc-chrome yellow, calcium plumbite etc., pollutes heavy heavy metal because these materials contain, thereby many countries and regions have been forbidden or limited use.Aluminium triphosphate is the anti-corrosion paint of a new generation, because excellent properties such as its antiseptic power is strong, environmental protection, look white receives broad research and exploitation in recent years.At present generally prepare aluminium triphosphate with industrial chemicals white lake or aluminum oxide and phosphatase reaction.The example of trade waste preparation also of no use.Bauxite contains abundant aluminium, and alumina content is generally more than 50%, and silicon oxide wherein is again good wear resistant filler, and silicon oxide not with phosphatase reaction, thereby can have the aluminium triphosphate of antiseptic property with bauxite preparation.
Reference paper:
[1]Wang?Yuhua，Lan?Ye，Hu?Yuehua.Adsorption?mechanisms?of?Cr(VI)on?themodified?bauxite?tailings.Minerals?Engineering，2008，21：913-918.
[2] Yuan Mingliang, Zhao's soul of a nation, Hu Yuehua. the behavior of iron in the bauxite acid medium. China YouSe Acta Metallurgica Sinica, 2003,13 (2): 480-484.
[3] Yuan Mingliang, Zhao's soul of a nation, Hu Yuehua. the solubility behavior of iron in the alumyte flotation tailings. process engineering journal, 2004,4 (1): 12-15.
[4] Hu Yuehua, Yang Huaming, Hu Xiaodong. a kind of preparation of modification mine tailing powder and this powder are as method [P] .CN200710034335.2008-08-06 of polymer packing
Summary of the invention
The object of the present invention is to provide a kind of method of utilizing bauxite to prepare white anticorrosive pigment/filler.
Technical scheme of the present invention is following:
Bauxite prepares the method for white anticorrosive pigment/filler, may further comprise the steps:
With bauxite wet method or dry ball milling to mine tailing granularity 95% to-10um; In 500-800 ℃ of temperature lower calcination, will calcine mine tailing and water by weight 1: 3-1: 5 mix, stir, discard beaker bottom larger particles (account in the beaker mine tailing amount 5%) in beaker.Is that 2-5 adds in the beaker and mixes with mine tailing, reacted 4-10 hour down in 80-150 ℃ of air-proof condition with one of phosphoric acid, tetra-sodium, polyphosphoric acid, metaphosphoric acid or Hypophosporous Acid, 50 solution by all metallic element mol ratios except that potassium, sodium in phosphorus and the mine tailing.With reactant in 220-400 ℃ of polycondensation 7-18 hour.With polycondensate and zinc oxide by weight 10: 1-4: 1 mixes, wet ball grinding 2-5 hour, 200-300 ℃ of calcining 2-6 hour, washing, ball milling, the white powder that obtains is described white anticorrosive pigment/filler.
The composition quality per-cent of described mine tailing is formed and is comprised Al
2O
357.9%, SiO
217.8%, TiO
24.1%, TFe5.3%, MgO0.5%, CaO0.6%, K
2O0.69%, Na
2O0.82%.
Described mine tailing mechanical milling process is: the rotating speed that ball mill is set is 350-480/min, and the ball milling time is 7-12 hour.
The mass concentration of described phosphoric acid, tetra-sodium, polyphosphoric acid, metaphosphoric acid or Hypophosporous Acid, 50 solution is 50%.
All there are two deficiencies in the superpolymer filler of having reported by the bauxite preparation: the one, and color is darker, can't obtain large-scale application; The 2nd, do not have functional application, added value is not high.The present invention adopts and directly in mine tailing, adds phosphorus containg substances, through chemical reaction, has prepared the white functional filler with antiseptic property, has improved the range of application and the application added value of mine tailing greatly.The present invention compares with the preparation technology of existing aluminium triphosphate anti-corrosion paint, has that cost is low, an environmental protection, characteristics that antiseptic property is high.
Description of drawings
Fig. 1: preparation technology's schema of white anticorrosive pigment/filler of the present invention.
Embodiment
Further specify the present invention below in conjunction with embodiment, and unrestricted the present invention.
Embodiment:
Embodiment 1
Bauxite wet ball grinding to mine tailing granularity 95% to-10um, in 550 ℃ of calcining 3h down, will be calcined mine tailing and in beaker, mixed, stirs, discards beaker bottom larger particles (account in the beaker mine tailing amount 4.6%) with water by weight 1: 4.Is 3 to add in the beakers and mixes with mine tailing 85% phosphoric acid by all metallic element mol ratios except that potassium, sodium in phosphorus and the mine tailing, reacts 10 hours down in 120 ℃ of air-proof conditions.With reactant in 380 ℃ of polycondensations 12 hours.Polycondensate and zinc oxide were mixed by weight 10: 1.5, wet ball grinding 3 hours, 280 ℃ of calcinings 3 hours, washing, ball milling, the white powder that obtains is described white anticorrosive pigment/filler.
Embodiment 2
With bauxite dry ball milling to mine tailing granularity 95% to-10um; In 600 ℃ of temperature lower calcination 2h, will calcine mine tailing and in beaker, mix, stir, discard beaker bottom black larger particles (account in the beaker mine tailing amount 5%) with water by weight 1: 5.Is 2.5 to add in the beakers and mixes with mine tailing, reacted 8 hours down in 100 ℃ of air-proof conditions polyphosphoric acid by all metallic element mol ratios except that potassium, sodium in phosphorus and the mine tailing.With reactant in 220 ℃ of polycondensations 18 hours.Polycondensate and zinc oxide were mixed by weight 5: 1, wet ball grinding 5 hours, 300 ℃ of calcinings 2 hours, washing, ball milling, the white powder that obtains is described white anticorrosive pigment/filler.
Embodiment 3
With bauxite wet ball grinding to mine tailing granularity 95% to-10um; In 650 ℃ of temperature lower calcination 2h, will calcine mine tailing and in beaker, mix, stir, discard beaker bottom larger particles (account in the beaker mine tailing amount 5%) with water by weight 1: 4.5.With all metallic element mol ratios except that potassium, sodium in tetra-sodium and the mine tailing is 4 to add in the beakers and mixes with mine tailing, reacted 6 hours down in 150 ℃ of air-proof conditions.With reactant in 300 ℃ of polycondensations 9 hours.Polycondensate and zinc oxide were mixed by weight 6: 1, wet ball grinding 4 hours, 300 ℃ of calcinings 2 hours, washing, ball milling, the white powder that obtains is described white anticorrosive pigment/filler.The mine tailing composition
Used bauxite composition such as table 1 among the embodiment
Table 1 bauxite composition
The physical parameter of prepared white anticorrosive pigment/filler
The physical parameter of the modification aluminium triphosphate anti-corrosion paint that prepared white anticorrosive pigment/filler and market are bought is seen table 2
The physical parameter of the white anticorrosive filler of table 2 bauxite preparation of the present invention
| Test item | Prepared anticorrosive packing | The modification aluminium triphosphate that market is bought |
| Al 2O 3 | 10.0～15.0 | 13.5 |
| P 2O 5 | 32.5～38.5 | 36.4 |
| SiO 2 | 4.2～7.0 | 12.5 |
| ZnO | 3.0～5.6 | 17.0 |
| The water solubles | ≤1 | ≤1 |
| Moisture content and volatile matter | ≤1.5 | ≤1.5 |
| Oil number ml/100g | 38±5 | 38±5 |
| Water collection liquid pH | 5.6～6.8 | 6.6 |
| Density g/cm | 2.6～3.0 | 2.8 |
| Fineness (325 mesh screen residue) % | ≤0.1 | ≤0.1 |
| Whiteness % | 82.6～86.7 | 86.2 |
The antiseptic property of prepared white anticorrosive pigment/filler:
Water-base epoxy lacquer (purchasing the chemical research institute in Changsha) is selected in the antiseptic property test.The anticorrosive pigment/filler addition is 20%.Antiseptic property is seen table 3.
The antiseptic property of the white anticorrosive filler of table 3 bauxite preparation of the present invention
| Test item | Detection method | Index | Detected result |
| Acid resistance/10d (30%H 2SO 4) | GB1763-79(85) | Non-foaming, do not come off | Non-foaming, do not come off |
| Alkali resistance/10d (30%NaOH) | GB1763-79(85) | Non-foaming, do not come off | Non-foaming, do not come off |
| Salt tolerance/10d (15%NaCl) | GB1763-79(85) | Non-foaming, do not come off | Non-foaming, do not come off |
Claims (2)
1. a method of utilizing bauxite to prepare white anticorrosive pigment/filler is characterized in that, may further comprise the steps:
1) with behind bauxite wet method or dry ball milling to mine tailing granularity 95% to-10 μ m; In 500-800 ℃ of temperature lower calcination 2-6 hour, the calcining mine tailing is mixed, stirs, discards the black macrobead that beaker bottom accounts for mine tailing quality 5% in the beaker with water by weight 1:3-1:5 in beaker;
2) be that 2-5 adds in the beaker and mixes with mine tailing, reacted 4-10 hour down in 80-150 ℃ of air-proof condition with one of phosphoric acid, tetra-sodium, polyphosphoric acid, metaphosphoric acid or Hypophosporous Acid, 50 solution by all metallic element mol ratios except that potassium, sodium in phosphorus and the mine tailing;
3) with reactant in 220-400 ℃ of polycondensation 7-18 hour; Polycondensate and zinc oxide are mixed by weight 10:1-4:1, wet ball grinding 2-5 hour, 200-300 ℃ of calcining 2-6 hour, washing, ball milling, the white powder that obtains is described white anticorrosive pigment/filler;
The composition quality per-cent of the described mine tailing of step 1) is formed and is comprised Al
2O
357.9%, SiO
217.8%, TiO
24.1%, TFe5.3%, MgO0.5%, CaO0.6%, K
2O0.69%, Na
2O0.82%.
2. method according to claim 1 is characterized in that step 2) mass concentration of described phosphoric acid, tetra-sodium, polyphosphoric acid, metaphosphoric acid or Hypophosporous Acid, 50 solution is 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010183153A CN101851438B (en) | 2010-05-26 | 2010-05-26 | A method for preparing white anti-corrosion pigments and fillers by using bauxite beneficiation tailings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010183153A CN101851438B (en) | 2010-05-26 | 2010-05-26 | A method for preparing white anti-corrosion pigments and fillers by using bauxite beneficiation tailings |
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| Publication Number | Publication Date |
|---|---|
| CN101851438A CN101851438A (en) | 2010-10-06 |
| CN101851438B true CN101851438B (en) | 2012-10-17 |
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| CN201010183153A Expired - Fee Related CN101851438B (en) | 2010-05-26 | 2010-05-26 | A method for preparing white anti-corrosion pigments and fillers by using bauxite beneficiation tailings |
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| CN102675930A (en) * | 2012-04-26 | 2012-09-19 | 中南大学 | Method for preparing double-90 white filler from bauxite tailing |
| CN103525135B (en) * | 2013-10-28 | 2015-09-02 | 广东先导稀材股份有限公司 | A kind of preparation method of modification aluminium triphosphate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163246A (en) * | 1997-02-25 | 1997-10-29 | 江阴市长江耐火材料厂 | Raw materialf or balance block of washing machine and its production method and products |
| CN101126125A (en) * | 2007-07-12 | 2008-02-20 | 中国铝业股份有限公司 | Comprehensive utilization method for bauxite dressing tailings |
| CN101235224A (en) * | 2007-01-29 | 2008-08-06 | 中南大学 | Preparation of modified tailings powder and method for using the powder as polymer filler |
| CN101240175A (en) * | 2008-03-11 | 2008-08-13 | 中南大学 | Intumescent flame retardant prepared from bauxite beneficiation tailings and preparation method thereof |
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| DE2451792A1 (en) * | 1974-10-31 | 1976-05-13 | Hoechst Ag | PROCESS FOR MANUFACTURING FIRE PROTECTION MATERIAL |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163246A (en) * | 1997-02-25 | 1997-10-29 | 江阴市长江耐火材料厂 | Raw materialf or balance block of washing machine and its production method and products |
| CN101235224A (en) * | 2007-01-29 | 2008-08-06 | 中南大学 | Preparation of modified tailings powder and method for using the powder as polymer filler |
| CN101126125A (en) * | 2007-07-12 | 2008-02-20 | 中国铝业股份有限公司 | Comprehensive utilization method for bauxite dressing tailings |
| CN101240175A (en) * | 2008-03-11 | 2008-08-13 | 中南大学 | Intumescent flame retardant prepared from bauxite beneficiation tailings and preparation method thereof |
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| Title |
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| JP特开昭51-68998A 1976.06.15 |
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