CN109534700A - A kind of steel slag modifying agent and preparation method thereof - Google Patents
A kind of steel slag modifying agent and preparation method thereof Download PDFInfo
- Publication number
- CN109534700A CN109534700A CN201811488012.8A CN201811488012A CN109534700A CN 109534700 A CN109534700 A CN 109534700A CN 201811488012 A CN201811488012 A CN 201811488012A CN 109534700 A CN109534700 A CN 109534700A
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- China
- Prior art keywords
- steel slag
- modifying agent
- agent
- slag modifying
- steel
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Links
- 239000002893 slag Substances 0.000 title claims abstract description 98
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 83
- 239000010959 steel Substances 0.000 title claims abstract description 83
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 11
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000007822 coupling agent Substances 0.000 claims abstract description 9
- 229960001484 edetic acid Drugs 0.000 claims abstract description 9
- 230000003213 activating effect Effects 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 16
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 239000006229 carbon black Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 8
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims description 7
- 229920001451 polypropylene glycol Polymers 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 239000012467 final product Substances 0.000 claims description 6
- 239000003607 modifier Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical group FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 claims description 5
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 5
- -1 3- (methacryloxypropyl) propyl Chemical group 0.000 claims description 4
- QMMBZOSZCYBCDC-UHFFFAOYSA-N NCCNCCC[SiH](OC(OCC)(OCC)OCC)OC Chemical compound NCCNCCC[SiH](OC(OCC)(OCC)OCC)OC QMMBZOSZCYBCDC-UHFFFAOYSA-N 0.000 claims description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 4
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 3
- 235000013539 calcium stearate Nutrition 0.000 claims description 3
- 239000008116 calcium stearate Substances 0.000 claims description 3
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 2
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 2
- 150000002334 glycols Chemical class 0.000 claims description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical group CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims 3
- HWSSEYVMGDIFMH-UHFFFAOYSA-N 2-[2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOCCOC(=O)C(C)=C HWSSEYVMGDIFMH-UHFFFAOYSA-N 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 229910000077 silane Inorganic materials 0.000 claims 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 claims 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract description 11
- 239000000292 calcium oxide Substances 0.000 abstract description 9
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000009628 steelmaking Methods 0.000 description 18
- 239000000843 powder Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 14
- 239000004568 cement Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 6
- 239000011575 calcium Substances 0.000 description 6
- 229910052791 calcium Inorganic materials 0.000 description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- YYPNJNDODFVZLE-UHFFFAOYSA-N 3-methylbut-2-enoic acid Chemical compound CC(C)=CC(O)=O YYPNJNDODFVZLE-UHFFFAOYSA-N 0.000 description 1
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 1
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 1
- 239000005695 Ammonium acetate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 208000035126 Facies Diseases 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
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- SNDJGKIVHKOEHY-UHFFFAOYSA-M S(=S)(=O)(O)O.S[Na] Chemical compound S(=S)(=O)(O)O.S[Na] SNDJGKIVHKOEHY-UHFFFAOYSA-M 0.000 description 1
- 241000876852 Scorias Species 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910001569 aluminium mineral Inorganic materials 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
- 235000019257 ammonium acetate Nutrition 0.000 description 1
- 229940043376 ammonium acetate Drugs 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920000909 polytetrahydrofuran Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 150000003385 sodium Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 229920005552 sodium lignosulfonate Polymers 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000000528 statistical test Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to steel slag modifying agent preparation technical fields, and in particular to a kind of steel slag modifying agent and preparation method thereof.The steel slag modifying agent includes each component of following weight percent: polyacrylamide 10-30%, ethylenediamine tetra-acetic acid 8-25%, activating agent 20-50%, coupling agent 5-30%, dispersing agent 3-12%.Steel slag modifying agent provided by the invention can be substantially reduced the free calcium oxide content in steel slag.
Description
Technical field
The invention belongs to steel slag modifying agent preparation technical fields, and in particular to a kind of steel slag modifying agent and preparation method thereof.
Background technique
The impurity in slag former and molten steel that steel slag is added when being using converter or electric furnace steel making, furnace lining formed with silicic acid
The solid waste as main component such as salt, ferrite.Due to property (chemical component, mineral composition and the main physics of steel slag
Performance) it is influenced by many factors such as the methods of furnace charge, the steel grade of melting and operation, it changes greatly, so without especially effectively
Method can directly handle.Many iron and steel enterprises only simply recycle the metal resource in steel slag, and remaining tailings then can not
" zero-emission " is fully achieved, the No.1 problem of smelting iron and steel factory fixed-end forces is become.
The chemical component of steel slag, mineral composition with the technique (converter, electric arc furnaces, refining furnace) of steel-making, melting steel grade etc. because
The difference of element and change, but main chemical compositions have CaO, SiO2, Al2O3、FeO、Fe2O3、MgO、MnO、P2O5、f-CaO、Fe
Deng steel slag is similar with chemistry and the minerals composition of common cementitious material such as Portland clinker, slag and flyash, by it
There is certain gel active after levigate, therefore, steel slag is used to prepare cement concrete material etc. frequently as auxiliary gel rubber material.But
Directly steel slag and clinker are mixed in use, leading to the peace for influencing mixing material since it has the problems such as activity is low
The performances such as qualitative, structural stability.
So in actual production being used after being first modified to steel slag, than utilizing lime, electric furnace also if any scholar
Modification is reconstructed to steel slag in former slag, slag, cinder, flyash etc., and steel slag mine facies evolution is advised during having studied high-temperature reconstruction
The variation of rule and gelling property finds that the calcareous material that adjusts can promote to reconstruct the formation of A mine and B mine in steel slag；Calcium alumina-silica
Adjusting material can preferably promote to reconstruct the formation of calcium silicates and calcium aluminoferrite in steel slag, significantly improve the gelling of reconstruct steel slag
Activity；Sa, which adjusts material, can promote the absorption of f-CaO, increase the content of aluminium mineral material in reconstruct steel slag.
There are also scholars to use direct-reduction process and smelting reduction process to steel slag by the high temperature furnace of installation nitrogen protection device
Modification is reconstructed, not only by Fe in RO phase in steel slag and liquid phase2O3It is reduced into metallic iron, the gelation activity of modified steel scoria is also
It significantly improves.
But above-mentioned method of modifying is higher to performance requirements such as the corrosion resistances of equipment, and complex process, so that steel slag
Cost is recycled to improve；There is patent CN107487999A to disclose to be modified using performance of the steel slag modifying agent to steel slag, change
The activity and chemical stability of steel-making slag powder after property are good and at low cost, non-corrosive.But the steel slag after this modifier modification
The content of middle free calcium is still higher, is unable to satisfy the needs of actual production.
Summary of the invention
In order to solve the above problem in the prior art, the present invention first purpose is that providing one kind can obviously drop
Low content of free calcium oxide in steel slag, the steel slag modifying agent for improving activity of steel slag.
Another goal of the invention of the invention is to provide the preparation method of the steel slag modifying agent.
In order to achieve the above-mentioned object of the invention, the present invention provides the following technical scheme that
A kind of steel slag modifying agent comprising each component of following weight percent: polyacrylamide 10-30%, ethylenediamine
Tetraacethyl 8-25%, activating agent 20-50%, coupling agent 5-30%, dispersing agent 3-12%.
Preferably, the steel slag modifying agent comprising each component of following weight percent: polyacrylamide 10-25%,
Ethylenediamine tetra-acetic acid 8-18%, activating agent 25-50%, coupling agent 8-30%, dispersing agent 5-12%.
Preferably, the activating agent is ethylene glycol dimethacrylate, triethanolamine, diethanol monoisopropanolamine, three
Glycol dimethylacrylate, ethylene glycol dimethacrylate, polyoxypropyleneglycol, polytetrahydrofuran diol and tetrahydro furan
One or more of mutter-propylene oxide copolymer glycols.
Preferably, the coupling agent is silane coupling agent 3- TSL 8330, gamma-aminopropyl-triethoxy
Silane, N- (β-aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane, 3- (methacryloxypropyl) propyl trimethoxy silicane,
One or more of vinyltrimethoxysilane and vinyltriethoxysilane.
It is further preferred that the coupling agent is 3- TSL 8330, gamma-aminopropyl-triethoxy silicon
In alkane, N- (β-aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane and 3- (methacryloxypropyl) propyl trimethoxy silicane
One or more.
Preferably, the dispersing agent is carbon black, calcium stearate, sodium lignin sulfonate and its modifier, hydroxyethyl cellulose
One or more of with neopelex.
It is further preferred that the dispersing agent is the mixture of carbon black and sodium lignin sulfonate.Wherein, carbon black has similar
The porous structure of active carbon, while there is a large amount of surface functional group again, these surface functional groups and sulfomethylated lignin can be passed through
Sour sodium plays connection function jointly, and " absorption " plays the role of flexible connection material on the other auxiliary agent surfaces of modifying agent.
It is further preferred that the ratio that the dispersing agent is carbon black and sodium lignin sulfonate is 1-8:1.
When the ratio of carbon black and sodium lignin sulfonate within the above range when, steel slag modifying agent, which can significantly improve, changes steel slag
Activity；When exceeding above range, the activity of modified steel slag is without significant change.
Preferably, the preparation method of the sodium lignin sulfonate modifier includes the following steps: that choosing molecular weight is 5000-
7000 sodium lignin sulfonate is boiled 1-4 hours under the conditions of 80-150 DEG C with acid solution tune pH to 4-6, is filtered, and gained filtrate is cold
Dry rear as modified sodium lignosulfonate is lyophilized.
The present invention also provides a kind of preparation methods of above-mentioned steel slag modifying agent comprising following steps:
Vapor stir process 1- will be passed through under the conditions of 120-220 DEG C after mixing by weight weighed each component
It 3 hours, is then cooled to 60-80 DEG C, mixes to quality and no longer change, be cooled to room temperature to obtain the final product.
Compared with prior art, the beneficial effects of the present invention are:
1) steel slag modifying agent provided by the invention can be in significantly accelerated free calcium oxide, free magnesium and steel-making slag powder
Acidic oxidation closes object and synthesizes C2S、C3S、C3A、C3The mineral such as AF, to effectively reduce free oxide (free- in steel-making slag powder
Ca0, Mg0) presence；Test result measurement shows that the steel slag modification that 1-4 of the embodiment of the present invention is provided can make the trip in steel slag
45% or more is reduced from magnesia；
2) when the steel-making slag powder doping after steel slag modifier modification provided by the invention reaches 30%, cement matrix is 28
It when mechanical property substantially close to cement matrix.
Specific embodiment
To keep purpose and the technical solution of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention, to this
The technical solution of invention is clearly and completely described.
Embodiment 1
A kind of steel slag modifying agent comprising each component of following weight percent:
Polyacrylamide 30%, ethylenediamine tetra-acetic acid 25%, ethylene glycol dimethacrylate 23%, 3- aminopropyl three
Methoxy silane 10%, neopelex 12%.
The preparation method of the steel slag modifying agent includes the following steps:
It is small vapor stir process 1.5 will to be passed through under the conditions of 200 DEG C after mixing by weight weighed each component
When, it is then cooled to 60 DEG C, mixes to quality and no longer change, be cooled to room temperature to obtain the final product.
Embodiment 2
A kind of steel slag modifying agent comprising each component of following weight percent:
Polyacrylamide 15%, ethylenediamine tetra-acetic acid 12%, polyoxypropyleneglycol 24%, diethanol monoisopropanolamine
21%, 3- TSL 8330 23%, calcium stearate 5%.
The preparation method of the steel slag modifying agent includes the following steps:
It will be passed through under the conditions of 180 DEG C after mixing vapor stir process 3 hours by weight weighed each component,
Then 60 DEG C are cooled to, quality is mixed to and no longer changes, be cooled to room temperature to obtain the final product.
Embodiment 3
A kind of steel slag modifying agent comprising each component of following weight percent:
Polyacrylamide 15%, ethylenediamine tetra-acetic acid 12%, polyoxypropyleneglycol 24%, diethanol monoisopropanolamine
21%, 3- TSL 8330 23%, carbon black 2%, sodium lignin sulfonate 3%.
The preparation method of the steel slag modifying agent includes the following steps:
It will be passed through under the conditions of 180 DEG C after mixing vapor stir process 3 hours by weight weighed each component,
Then 60 DEG C are cooled to, quality is mixed to and no longer changes, be cooled to room temperature to obtain the final product.
Embodiment 4
A kind of steel slag modifying agent comprising each component of following weight percent:
Polyacrylamide 15%, ethylenediamine tetra-acetic acid 12%, polyoxypropyleneglycol 24%, diethanol monoisopropanolamine
21%, vinyltrimethoxysilane 23%, carbon black 2%, sodium lignin sulfonate 3%.
The preparation method of the steel slag modifying agent is substantially the same as embodiment 3.
Comparative example 1
A kind of steel slag modifying agent comprising each component of following weight percent:
Polyacrylamide 15%, ethylenediamine tetra-acetic acid 12%, polyoxypropyleneglycol 24%, diethanol monoisopropanolamine
21%, 3- TSL 8330 23%, carbon black 2%, sodium lignin sulfonate 3%.
The preparation method of the steel slag modifying agent includes the following steps:
By weighed each component by weight and the water of 10 weight % of modifying agent is equivalent to after mixing in 180 DEG C of conditions
Lower stirring, is then cooled to 60 DEG C, mixes to quality and no longer changes, is cooled to room temperature to obtain the final product.
Comparative example 2
A kind of steel slag modifying agent comprising each component of following weight percent:
Polyacrylamide 29%, ethylenediamine tetra-acetic acid 12%, polyoxypropyleneglycol 10%, diethanol monoisopropanolamine
21%, 3- TSL 8330 23%, carbon black 2%, sodium lignin sulfonate 3%.
The preparation method of the steel slag modifying agent is substantially the same as embodiment 3.
Comparative example 3
A kind of discarded Steel-slag replaces the steel slag modifying agent of clinker, is formulated by weight by following compositions: by 10% sulphur
Sodium thiosulfate, 5% sodium acetate, 7% modified triethanolamine, 3% white sugar, 5% ammonium acetate, 2% sodium formate, 10%
Glycerol, 5% molasses, 2% dispersing agent and 51% water after mixing, obtain steel slag modifying agent.
Effect test
1, influence of the steel slag modifying agent to free calcium in steel slag is tested
Steel slag modifying agent 1:1 in mass ratio made from dried steel-making slag powder and embodiment 1-4, comparative example 1-3 is mixed
Mixture is formed, then 800 DEG C of constant temperature are cooled to room temperature after being heat-treated two hours, then use the measuring method of free calcium oxide
(" steel slag is modified and its right with reference to Master's thesis for specific detecting step for the content of free calcium in each aggregate sample of (glycol method) measurement
Cement matrix performance influences experimental study ").Record the percentage composition decreasing value of free calcium oxide in different aggregate samples.As a result such as
Shown in the following table 1.
Influence of the 1 steel slag modifying agent of table to free calcium in steel slag
| Heat treated sample | F-Ca0 reduces percentage amounts (%) |
| The mixture of steel-making slag powder and embodiment 1 | 47.22 |
| The mixture of steel-making slag powder and embodiment 2 | 47.31 |
| The mixture of steel-making slag powder and embodiment 3 | 52.15 |
| The mixture of steel-making slag powder and embodiment 4 | 51.76 |
| The mixture of steel-making slag powder and comparative example 1 | 33.45 |
| The mixture of steel-making slag powder and comparative example 2 | 45.39 |
| The mixture of steel-making slag powder and comparative example 3 | 35.22 |
As can be seen from the data in the table, through steel slag modifying agent made from embodiment to the content of free calcium oxide in steel slag
Reduction degree is above comparative example, the best performance of steel slag modifying agent as made from embodiment 3.
2, influence of the modified steel-making slag powder to Mechanical Properties of Cement-based Materials
According to detection method disclosed in Master's thesis " steel slag is modified and its influences experimental study to cement matrix performance ",
To the steel-making slag powder after steel slag modifier modification made from the embodiment of the present application 1-4, comparative example 1-3 to Mechanical Properties of Cement-based Materials
Influence.Statistical test result (doping of modified steel-making slag powder is 30% in mixed material), such as the following table 2.
Influence of the modified steel-making slag powder of table 2 to cement material compression strength
As can be seen from the data in the table, as time went on, compression strength of the cement-based material in 28d reaches maximum
Value, substantially close to the mechanical property of cement matrix.
The above is only embodiments of the present invention, and the description thereof is more specific and detailed, and but it cannot be understood as right
The limitation of the invention patent range.It should be pointed out that for those of ordinary skill in the art, not departing from the present invention
Under the premise of design, various modifications and improvements can be made, these are all belonged to the scope of protection of the present invention.
Claims (9)
1. a kind of steel slag modifying agent comprising each component of following weight percent: polyacrylamide 10-30%, ethylenediamine tetraacetic
Acetic acid 8-25%, activating agent 20-50%, coupling agent 5-30%, dispersing agent 3-12%.
2. steel slag modifying agent according to claim 1 comprising each component of following weight percent: polyacrylamide
10-25%, ethylenediamine tetra-acetic acid 8-18%, activating agent 25-50%, coupling agent 8-30%, dispersing agent 5-12%.
3. steel slag modifying agent according to claim 1 or 2, the activating agent is ethylene glycol dimethacrylate, three second
Hydramine, diethanol monoisopropanolamine, triethylene glycol dimethacrylate, ethylene glycol dimethacrylate, polypropylene oxide two
Alcohol, poly- tetrahydro two pure and mild tetrahydros of muttering are muttered-one or more of propylene oxide copolymer glycols.
4. steel slag modifying agent according to claim 1 or 2, the coupling agent is silane coupling agent 3- aminopropyl trimethoxy
Base silane, gamma-aminopropyl-triethoxy-silane, N- (β-aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane, 3- (methyl-prop
One or more of alkene acyl-oxygen) propyl trimethoxy silicane, vinyltrimethoxysilane and vinyltriethoxysilane.
5. steel slag modifying agent according to claim 4, the coupling agent is 3- TSL 8330, γ-ammonia
Propyl-triethoxysilicane, N- (β-aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane and 3- (methacryloxypropyl) propyl
One or more of trimethoxy silane.
6. steel slag modifying agent according to claim 1 or 2, the dispersing agent is carbon black, calcium stearate, sodium lignin sulfonate
And its one or more of modifier, hydroxyethyl cellulose and neopelex.
7. steel slag modifying agent according to claim 6, the dispersing agent is the mixture of carbon black and sodium lignin sulfonate.
8. steel slag modifying agent according to claim 7, the dispersing agent is that the ratio of carbon black and sodium lignin sulfonate is 1-
8:1。
9. a kind of preparation method for preparing the steel slag modifying agent as described in any one of claim 1-8 comprising following steps:
It is small vapor stir process 1-3 will to be passed through under the conditions of 120-220 DEG C after mixing by weight weighed each component
When, it is then cooled to 60-80 DEG C, mixes to quality and no longer change, be cooled to room temperature to obtain the final product.
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Cited By (3)
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| CN113354380A (en) * | 2021-06-28 | 2021-09-07 | 武汉理工大学 | Solid waste base thermal coagulation promoting 3D printing material and 3D printing forming method thereof |
| CN114014564A (en) * | 2021-11-17 | 2022-02-08 | 安徽海螺新材料科技有限公司 | Steel slag activator and preparation method and application thereof |
| CN114230219A (en) * | 2021-12-02 | 2022-03-25 | 电子科技大学长三角研究院(湖州) | Preparation method and application of novel steel slag composite exciting agent |
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| US5478392A (en) * | 1991-10-23 | 1995-12-26 | Pelt & Hooykaas B.V. | Porous granulated steel slag composition and use of such as aggregate or cement replacement in building materials, road building and embankment |
| CN103253876A (en) * | 2013-04-25 | 2013-08-21 | 南京工业大学 | Activated grinding aid for steel slag micropowder and preparation method thereof |
| CN106977127A (en) * | 2017-02-22 | 2017-07-25 | 清华大学 | A kind of heat-stewed steel slag from converter grinding aid activator and preparation method thereof |
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| US5478392A (en) * | 1991-10-23 | 1995-12-26 | Pelt & Hooykaas B.V. | Porous granulated steel slag composition and use of such as aggregate or cement replacement in building materials, road building and embankment |
| CN103253876A (en) * | 2013-04-25 | 2013-08-21 | 南京工业大学 | Activated grinding aid for steel slag micropowder and preparation method thereof |
| CN106977127A (en) * | 2017-02-22 | 2017-07-25 | 清华大学 | A kind of heat-stewed steel slag from converter grinding aid activator and preparation method thereof |
Cited By (4)
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| CN113354380A (en) * | 2021-06-28 | 2021-09-07 | 武汉理工大学 | Solid waste base thermal coagulation promoting 3D printing material and 3D printing forming method thereof |
| CN114014564A (en) * | 2021-11-17 | 2022-02-08 | 安徽海螺新材料科技有限公司 | Steel slag activator and preparation method and application thereof |
| CN114230219A (en) * | 2021-12-02 | 2022-03-25 | 电子科技大学长三角研究院(湖州) | Preparation method and application of novel steel slag composite exciting agent |
| CN114230219B (en) * | 2021-12-02 | 2023-09-19 | 电子科技大学长三角研究院(湖州) | Preparation method and application of steel slag composite excitant |
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