CN101745267B - Filtration method of micro fine oxide slurry - Google Patents
Filtration method of micro fine oxide slurry Download PDFInfo
- Publication number
- CN101745267B CN101745267B CN2009102433529A CN200910243352A CN101745267B CN 101745267 B CN101745267 B CN 101745267B CN 2009102433529 A CN2009102433529 A CN 2009102433529A CN 200910243352 A CN200910243352 A CN 200910243352A CN 101745267 B CN101745267 B CN 101745267B
- Authority
- CN
- China
- Prior art keywords
- fine oxide
- micro fine
- organic matter
- oxide slurry
- slurry
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- 239000002002 slurry Substances 0.000 title claims abstract description 56
- 238000001914 filtration Methods 0.000 title abstract description 25
- 239000000178 monomer Substances 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 10
- 239000005416 organic matter Substances 0.000 claims description 33
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 28
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 27
- 239000007800 oxidant agent Substances 0.000 claims description 12
- 230000001590 oxidative effect Effects 0.000 claims description 12
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000035484 reaction time Effects 0.000 claims description 8
- 229910001570 bauxite Inorganic materials 0.000 claims description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000000379 polymerizing effect Effects 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 description 15
- 239000012065 filter cake Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010433 feldspar Substances 0.000 description 2
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-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
- 239000000047 product Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- -1 alkyl dimethyl ammonium chloride Chemical compound 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000031709 bromination Effects 0.000 description 1
- 238000005893 bromination reaction Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
Abstract
The invention relates to a filtration method of micro fine oxide slurry, relating to a filtration and separation method of solid grain-containing slurry. The method is characterized in that in the filtration process, organic monomers are added to the micro fine oxide slurry to be filtrated, the organic monomers have polymerization reaction and modify the surfaces of the micro fine oxide grains, and then the modified micro fine oxide slurry is filtrated. The method can effectively reduce the filtration resistance, improve the filtration velocity and reduce the filtration time, thereby reducing the energy consumption in the filtration process, and the filtration velocity can be improved by 30-300%.
Description
Technical field
The present invention relates to a kind of filter method of micro fine oxide slurry, relate to a kind of filter separation method that contains the solid particle slurry.
Background technology
The isolated by filtration of fine mineral slurry is the technical process that metallurgy chemical process usually relates to.In the isolated by filtration process, phenomenons such as plugged filtration media, filter cake densification, gas permeability deterioration take place in the frequent regular meeting of filter plant, and cause a series of serious problems such as dewatering speed reduces, the moisture mass fraction of filter cake increases thus.At the problems referred to above therefore, people have developed some chemical filter aids, adopt chemical filter aid to improve filter effect under the prerequisite of not changing existing filter plant and technology.The chemistry filter aid generally is divided into high polymer coagulant, surfactant and compound filter aid.High polymer coagulant is to reach the effect that helps filter by changing solid grain size, studies the more graft copolymer that polyacrylamide, poly-2-hydroxypropyl alkyl dimethyl ammonium chloride and acrylamide are arranged, aluminium polychloride, poly-ferric chloride etc.; Surfactant is to reach the effect that helps filter and reduce the moisture mass fraction of filter cake by reducing solution surface tension, studies more have dodecyl sodium sulfate, dodecyl bromination sodium, softex kw etc.; Compound filter aid then is that the interaction by flocculant and surfactant reaches the effect that helps filter and dehydration.
At present, the addition manner of polymer electrolyte filter aid is that add the back, and the service efficiency of filter aid is lower, has influenced the raising of the rate of filtration, and filter cake moisture reduces.
Summary of the invention
Order of the present invention is exactly the deficiency that exists at above-mentioned prior art, a kind of service efficiency that can effectively improve filter aid is provided, improves the rate of filtration, reduces the filter method of filter cake moisture micro fine oxide slurry.
The objective of the invention is to be achieved through the following technical solutions.
A kind of filter method of micro fine oxide slurry, it is characterized in that in filter process, in micro fine oxide slurry to be filtered, adding the organic matter monomer, after making organic matter monomer polymerization reaction take place and the micro fine oxide surface being carried out modification, the micro fine oxide slurry after modification is carried out filter operation.
The filter method of a kind of micro fine oxide slurry of the present invention is characterized in that mixture or aniline monomer that described organic matter monomer is phenol and formaldehyde.
The filter method of a kind of micro fine oxide slurry of the present invention, it is characterized in that described micro fine oxide slurry is bauxite, iron ore, manosil AS salt mine or silicate mine and their converted products, comprise and select mine tailing or concentrate selection, the ultra-fine slurry of deep processing.
The filter method of a kind of micro fine oxide slurry of the present invention, the polymerizing condition that it is characterized in that described organic matter monomer phenol and formaldehyde is pH=8～10, and reaction temperature is 20～100 ℃, and the reaction time is 15min～24h.
The filter method of a kind of micro fine oxide slurry of the present invention, the polymerizing condition that it is characterized in that described organic matter monomer aniline are that pH≤7 and oxidant exist, and reaction temperature is 20～100 ℃, and the reaction time is 15min～24h.
The filter method of a kind of micro fine oxide slurry of the present invention is characterized in that described micro fine oxide slurry, and the micro fine oxide weight concentration of slurry is 5%～75%, and the fineness of microfine-200 order is 30%～100%.
The filter method of a kind of micro fine oxide slurry of the present invention is characterized in that the part by weight of organic matter monomer and micro fine oxide is the organic matter monomer in the described slurry: micro fine oxide=1: 3～1: 2000.
The filter method of a kind of micro fine oxide slurry of the present invention is characterized in that described oxidant is (NH
4)
2S
2O
8, K
2S
2O
8, (NH
4)
2Cr
2O
7, K
2Cr
2O
7, H
2O
2, FeCl
3, Fe
2(SO
4)
3Or iron oxide is a kind of or mixture, and the part by weight of organic matter monomer and oxidant is the organic matter monomer: oxidant=2: 1～1: 10.
Method of the present invention is by in-situ polymerization, and the polymer that makes polymerisation generate can act on fully with mineral grain, thereby improves the strainability of micro fine oxide slurry.This method has that energy consumption is low, cost is low, easy operating, be easy to realize plurality of advantages such as industrialization, and is significant to the protection environment.
The specific embodiment
A kind of filter method of micro fine oxide slurry, ore pulp is poured in the reaction vessel, in the micro fine oxide slurry ore pulp, added a certain amount of organic matter monomer, make organic matter monomer generation polymerization under certain condition, generate polymer, then slurry filtration is dewatered.The invention is characterized in, the organic matter monomer is the mixture or the aniline monomer of phenol and formaldehyde, micro fine oxide slurry can be bauxite (bauxite), iron ore (limonite, bloodstone), manosil AS salt mine (kaolinite, diatomite, potassic feldspar), silicate mine (quartz sand) and their converted products, comprise and select mine tailing and concentrate selection, the ultra-fine slurry of deep processing.Polymerization is an in-situ polymerization, is about to the organic matter monomer and mixes with micro fine oxide slurry, then makes organic matter monomer generation in-situ polymerization under certain condition, filters after question response is finished, and the rate of filtration can improve 30～300%.
Can be among the present invention by conditions such as control organic matter monomer addition, reaction time, reaction temperatures, the filtering property of back slurry is handled in control, and concrete processing step is as follows:
A. mixing of slurry and organic matter monomer: the slurry of certain fineness is transferred to finite concentration, then add a certain amount of organic matter monomer.
To micro fine oxide slurry, slurry concentration is 5～75% among the step a, and the fineness of microfine-200 order is 30～100%.
B. the polymerization of organic matter monomer:, carry out the polymerization of monomer under certain condition.
The part by weight of organic matter monomer and micro fine oxide slurry is among the step b, the organic matter monomer: micro fine oxide=1: 3～1: 2000.
Reaction temperature is 20～100 ℃ among the step b, and the reaction time is 15min～24h.
The polymerizing condition of organic matter monomer phenol and formaldehyde is pH=8～10 among the step b, and reaction temperature is 20～100 ℃, and the reaction time is 15min～24h.The polymerizing condition of organic matter monomer aniline is that pH≤7 and a certain amount of oxidant exist, and reaction temperature is 20～100 ℃, and the reaction time is 15min～24h.
Oxidant can be (NH among the step b
4)
2S
2O
8, K
2S
2O
8, (NH
4)
2Cr
2O
7, K
2Cr
2O
7, H
2O
2, FeCl
3, Fe
2(SO
4)
3Or a kind of or mixture of iron oxide, the part by weight of organic matter monomer and oxidant is the organic matter monomer: oxidant=2: 1～1: 10.
C. the filtration of ore pulp: measure the rate of filtration.
Embodiment 1
With fineness is the kaolin of-200 order content 90%, and transferring to concentration is 50%, adds the aniline of 20kg/t raw material in the slurry raw material, the sulfuric acid of 200kg/t the raw material, (NH of 20kg/t
4)
2S
2O
8, 50 ℃ are reacted 2h down, filter, and compare with not adding aniline, and its rate of filtration improves 100%.
Embodiment 2
With fineness is the mineral processing tailing of bauxite of-200 order content 92%, transferring to concentration is 40%, in the slurry raw material, add phenol: the raw material 10kg/t of formaldehyde=1: 2, use sodium carbonate regulation system pH value to 9,20 ℃ are reacted 8h down, filter, compare with formaldehyde with not adding phenol, the rate of filtration improves 65%.
Embodiment 3
With fineness is the bloodstone of-200 order content 95%, and regulating concentration is 50%, adds the aniline of 50kg/t raw material in the slurry raw material, the hydrochloric acid of 100kg/t raw material, the H of 25kg/t
2O
2, 80 ℃ are reacted 1h down, filter, and compare with not adding aniline, and its rate of filtration improves 150%.
Embodiment 4
With fineness is the potassic feldspar of-200 order content 100%, and regulating concentration is 75%, adds the aniline of 333kg/t raw material in the slurry raw material, the sulfuric acid of 500kg/t raw material, the FeCl of 167kg/t
3, 100 ℃ are reacted 15min down, filter, and compare with not adding aniline, and its rate of filtration improves 300%.
Embodiment 5
With fineness is the bauxite of-200 order content 30%, and regulating concentration is 5%, adds phenol in the slurry raw material: the raw material 0.5kg/t of formaldehyde=1: 3, use sodium carbonate regulation system pH value to 8,20 ℃ are reacted 24h down, filter, compare with formaldehyde with not adding phenol, its rate of filtration improves 30%.
Embodiment 6
With fineness is the bauxite of-200 order content 80%, and regulating concentration is 35%, adds the aniline of 20kg/t in the slurry raw material, the hydrochloric acid of 150kg/t raw material, the H of 200kg/t
2O
2, 50 ℃ are reacted 5h down, filter, and compare with not adding aniline, and its rate of filtration improves 120%.
Claims (7)
1. the filter method of a micro fine oxide slurry, it is characterized in that in filter process, in micro fine oxide slurry to be filtered, adding the organic matter monomer, after making organic matter monomer polymerization reaction take place and the micro fine oxide surface being carried out modification, the micro fine oxide slurry after modification is carried out filter operation; Mixture or aniline monomer that described organic matter monomer is phenol and formaldehyde.
2. the filter method of a kind of micro fine oxide slurry according to claim 1 is characterized in that described micro fine oxide is selected from bauxite, iron ore, manosil AS salt mine or silicate mine and their converted products.
3. the filter method of a kind of micro fine oxide slurry according to claim 1, the polymerizing condition that it is characterized in that described organic matter monomer phenol and formaldehyde is pH=8～10, and reaction temperature is 20～100 ℃, and the reaction time is 15min～24h.
4. the filter method of a kind of micro fine oxide slurry according to claim 1, the polymerizing condition that it is characterized in that described organic matter monomer aniline are that pH≤7 and oxidant exist, and reaction temperature is 20～100 ℃, and the reaction time is 15min～24h.
5. the filter method of a kind of micro fine oxide slurry according to claim 4 is characterized in that described micro fine oxide slurry, and the micro fine oxide weight concentration of slurry is 5%～75%, and the fineness of microfine-200 order is 30%～100%.
6. the filter method of a kind of micro fine oxide slurry according to claim 1 is characterized in that the part by weight of organic matter monomer and micro fine oxide is the organic matter monomer in the described slurry: micro fine oxide=1: 3～1: 2000.
7. the filter method of a kind of micro fine oxide slurry according to claim 4 is characterized in that described oxidant is (NH
4)
2S
2O
8, K
2S
2O
8, (NH
4)
2Cr
2O
7, K
2Cr
2O
7, H
2O
2, FeCl
3, Fe
2(SO
4)
3Or a kind of in the iron oxide or their mixture, the part by weight of organic matter monomer and oxidant is the organic matter monomer: oxidant=2: 1～1: 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102433529A CN101745267B (en) | 2009-12-18 | 2009-12-18 | Filtration method of micro fine oxide slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102433529A CN101745267B (en) | 2009-12-18 | 2009-12-18 | Filtration method of micro fine oxide slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101745267A CN101745267A (en) | 2010-06-23 |
| CN101745267B true CN101745267B (en) | 2011-11-23 |
Family
ID=42473262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102433529A Active CN101745267B (en) | 2009-12-18 | 2009-12-18 | Filtration method of micro fine oxide slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101745267B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9981272B2 (en) * | 2011-05-25 | 2018-05-29 | Cidra Corporate Services, Inc. | Techniques for transporting synthetic beads or bubbles in a flotation cell or column |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909946A (en) * | 1985-06-14 | 1990-03-20 | The Dow Chemical Company | Dewatering aid for clay |
| CN1240408A (en) * | 1996-12-13 | 2000-01-05 | 矿业技术有限公司 | Dewatering of calcium carbonate |
| CN101371955A (en) * | 2007-07-24 | 2009-02-25 | Neo解决方案公司 | Process for dewatering a mineral slurry concentrate and increasing the production of a filter cake |
-
2009
- 2009-12-18 CN CN2009102433529A patent/CN101745267B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909946A (en) * | 1985-06-14 | 1990-03-20 | The Dow Chemical Company | Dewatering aid for clay |
| CN1240408A (en) * | 1996-12-13 | 2000-01-05 | 矿业技术有限公司 | Dewatering of calcium carbonate |
| CN101371955A (en) * | 2007-07-24 | 2009-02-25 | Neo解决方案公司 | Process for dewatering a mineral slurry concentrate and increasing the production of a filter cake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101745267A (en) | 2010-06-23 |
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