WO2022226924A1 - 利用氰胺废渣制备复合材料用颜填料的方法 - Google Patents
利用氰胺废渣制备复合材料用颜填料的方法 Download PDFInfo
- Publication number
- WO2022226924A1 WO2022226924A1 PCT/CN2021/091142 CN2021091142W WO2022226924A1 WO 2022226924 A1 WO2022226924 A1 WO 2022226924A1 CN 2021091142 W CN2021091142 W CN 2021091142W WO 2022226924 A1 WO2022226924 A1 WO 2022226924A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- waste residue
- cyanamide waste
- cyanamide
- treatment
- slurry
- Prior art date
Links
- 239000002699 waste material Substances 0.000 title claims abstract description 70
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000000945 filler Substances 0.000 title claims abstract description 40
- 239000000049 pigment Substances 0.000 title claims abstract description 39
- 239000002131 composite material Substances 0.000 title claims abstract description 9
- 238000012986 modification Methods 0.000 claims abstract description 21
- 230000004048 modification Effects 0.000 claims abstract description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims description 30
- 238000001035 drying Methods 0.000 claims description 21
- 238000010298 pulverizing process Methods 0.000 claims description 20
- 238000007885 magnetic separation Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 13
- 238000010009 beating Methods 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 8
- 239000008139 complexing agent Substances 0.000 claims description 7
- 239000007822 coupling agent Substances 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 239000006148 magnetic separator Substances 0.000 claims description 6
- 239000003607 modifier Substances 0.000 claims description 6
- 229920000058 polyacrylate Polymers 0.000 claims description 6
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 6
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 4
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- 150000004645 aluminates Chemical class 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 238000010668 complexation reaction Methods 0.000 claims description 3
- 229910001385 heavy metal Inorganic materials 0.000 claims description 3
- 125000001477 organic nitrogen group Chemical group 0.000 claims description 3
- -1 phosphomolybdate Chemical compound 0.000 claims description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 3
- 229920005646 polycarboxylate Polymers 0.000 claims description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims description 2
- 150000001298 alcohols Chemical class 0.000 claims description 2
- 150000008052 alkyl sulfonates Chemical class 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 2
- RFAFBXGYHBOUMV-UHFFFAOYSA-N calcium chromate Chemical compound [Ca+2].[O-][Cr]([O-])(=O)=O RFAFBXGYHBOUMV-UHFFFAOYSA-N 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 229940070721 polyacrylate Drugs 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 2
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 229910052712 strontium Inorganic materials 0.000 claims description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 2
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 2
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 2
- 235000013799 ultramarine blue Nutrition 0.000 claims description 2
- XAEWLETZEZXLHR-UHFFFAOYSA-N zinc;dioxido(dioxo)molybdenum Chemical compound [Zn+2].[O-][Mo]([O-])(=O)=O XAEWLETZEZXLHR-UHFFFAOYSA-N 0.000 claims description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims 1
- 238000004537 pulping Methods 0.000 abstract description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 12
- 229920001971 elastomer Polymers 0.000 description 8
- 239000005060 rubber Substances 0.000 description 8
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- 229920000915 polyvinyl chloride Polymers 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 235000013980 iron oxide Nutrition 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 235000021355 Stearic acid Nutrition 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000008117 stearic acid Substances 0.000 description 3
- 239000004709 Chlorinated polyethylene Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- ZIPLUEXSCPLCEI-UHFFFAOYSA-N cyanamide group Chemical group C(#N)[NH-] ZIPLUEXSCPLCEI-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910003439 heavy metal oxide Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C279/00—Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
- C07C279/28—Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of guanidine groups bound to cyano groups, e.g. cyanoguanidines, dicyandiamides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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Definitions
- the invention belongs to the field of green resource utilization of industrial solid wastes, and in particular relates to a method for preparing pigments and fillers for composite materials by using cyanamide waste residues.
- Cyanamide waste residue is the waste residue produced during the industrial production of cyanamide or dicyandiamide.
- the newly generated waste residue has about 45% water content, and the main components in the solid phase are calcium carbonate, carbon, silicon dioxide and a small amount of impurities such as iron oxide, magnesium oxide, and organic nitrides.
- the cyanamide waste residue is black, the particle size is between 0-0.2mm, the pH value is between 8-8.5, and the specific surface area is 3.5-4.5m 3 /g. Every 1 ton (t) of dicyandiamide produced produces about 5t of dry-based waste residue. According to statistics, in Shizuishan alone, the output of cyanamide waste has reached 5 million tons per year. The accumulation of a large amount of cyanamide waste residue not only occupies a large amount of land, but also has the hidden danger of water resources and dust pollution.
- a method for preparing pigments and fillers for composite materials by utilizing cyanamide waste residues according to the present invention is proposed.
- the method of the invention can realize the green and high-value utilization of the cyanamide waste residue according to the characteristics of the cyanamide waste residue itself and combined with the corresponding processing technology.
- a method for preparing pigments and fillers for composite materials by utilizing cyanamide waste residues comprises three steps of raw material pretreatment, ultra-fine processing and surface modification:
- the raw material pretreatment includes two steps of beating and nitrogen fixation.
- the beating is to use a beating machine to beat the cyanamide waste residue into a slurry with a concentration of 20-80% under the action of a dispersant.
- the nitrogen fixation is to add a certain amount of complexing agent to the slurry after beating, and continue stirring for 5-360 minutes (min) to fix the soluble organic nitrogen in the slurry through a complexation reaction.
- the ultrafine processing includes pulverization treatment, drying treatment, magnetic separation treatment and toning treatment.
- the fine powder after ultrafine processing can be used as pigments and fillers in the fields of rubber, plastics and coatings.
- the process sequence of the pulverization treatment, drying treatment, magnetic separation treatment and toning treatment can be adjusted according to actual needs.
- the pulverizing step includes pulverizing the nitrogen-fixing slurry or the dried nitrogen-fixing slurry to a certain fineness by a pulverizing device.
- the drying treatment includes drying the nitrogen-fixing slurry or the pulverized slurry to a moisture content of less than 0.8% by drying equipment.
- the magnetic separation treatment includes using wet magnetic separation equipment or dry magnetic separation equipment to perform magnetic separation on the nitrogen-fixed slurry or the dried nitrogen-fixed slurry to reduce heavy metals (such as iron, lead, mercury, iron, lead, mercury, etc.) in the cyanamide waste residue. chromium, etc.)
- modified pigment and filler through suitable modification equipment, select appropriate modifier and dosage, and conduct surface treatment on fine powder under certain conditions, the modified pigment and filler can be used in the fields of rubber, plastics and coatings.
- the method of the present invention has at least one of the following advantages: the production processes involved in the method of the present invention are all purely physical processes, do not involve processes such as strong acid and alkali, high pressure, etc., and the production process is safe and green. , environmental protection, no three waste emissions, and water-soluble nitrides, heavy metals and iron oxides have been treated, which will not affect the performance of downstream products.
- the pigment and filler produced by the method of the invention have uniform dispersion, good affinity with resin and excellent coloring effect, can be widely used in rubber, plastic and coating industries, and truly realize the green and high value-added utilization of cyanamide waste residue.
- FIG. 1 is a flow chart of a method for preparing pigments and fillers for composite materials by utilizing cyanamide waste residues according to an embodiment of the present invention.
- a method for preparing pigments and fillers for composite materials by using cyanamide waste residue is provided.
- the waste residue is subjected to beating treatment and nitrogen fixation treatment; the pretreated cyanamide waste residue is subjected to ultra-fine processing; the surface modification of the ultra-fine processed cyanamide waste residue is carried out.
- the beating treatment includes beating the cyanamide waste residue into a slurry with a concentration of 20-80%, such as a concentration of 50% or 60%, by a beating machine under the action of a dispersant;
- the nitrogen fixation treatment includes adding a complexing agent to the slurry and stirring, so as to fix the soluble organic nitrogen in the slurry through a complexation reaction.
- the dispersing agent includes any of sodium tripolyphosphate, sodium hexametaphosphate, sodium pyrophosphate, polyacrylate, polycarboxylate, polyacrylate, alkylsulfonate and naphthalenesulfonate polycondensate. one or any combination of them;
- the dosage of the dispersant is 0.01-20% of the quality of the cyanamide waste residue to be treated, such as 1%, 5%, 10% or 15%;
- the complexing agent includes soluble salts of any one of nickel, copper, manganese, iron and cobalt or any combination thereof; the amount of the complexing agent is 0.01-20% of the mass of the cyanamide waste residue to be treated, such as 1%, 5%, 10% or 15%.
- the ultrafine processing of the pretreated cyanamide waste includes processing the cyanamide waste in any combination order of pulverization, drying, magnetic separation and toning, and the ultrafine processed cyanamide
- the fine powder of the waste residue is directly used as the composite pigment and filler.
- the pulverizing treatment includes pulverizing the slurry or the dried material by a pulverizing device.
- the drying process includes drying the slurry to a moisture content of less than 0.8%.
- the magnetic separation treatment includes the use of wet magnetic separation equipment or dry magnetic separation equipment to magnetically separate the slurry or the dried material, so as to reduce the content of harmful metals (such as iron, lead, mercury, chromium, etc.) in the slurry or material .
- harmful metals such as iron, lead, mercury, chromium, etc.
- the pulverizing equipment includes any one of a ring roll mill, a mechanical mill, a dry ball mill, a wet ball mill, a jet mill, a steam mill, a hot air jet mill, a wet agitation mill and a sand mill or any combination thereof random combination.
- the fineness of the crushed cyanamide waste residue is between 800-12500 mesh, such as 2000 mesh, 5000 mesh, 8000 mesh or 10000 mesh.
- the drying equipment includes any one or any combination of centrifugal dehydrators, filter presses, flash dryers, spray dryers, fluidized bed dryers, rotary kiln dryers and drum dryers, so The temperature of the drying treatment is between 100-250°C, such as 150°C or 200°C.
- the magnetic field strength of the dry magnetic separator or the wet magnetic separator is in the range of 0.02-2.0T (eg 1T), and the tailings of the magnetically selected cyanamide waste residue are used as cement raw materials.
- the toner In the toner treatment, the toner is mixed with the cyanamide waste residue and then pulverized together in the pulverization process.
- the function of the toner is to adjust the color of the material and improve the anti-rust performance.
- the toners include red red, strontium chrome yellow, zinc chrome yellow, barium chrome yellow, calcium chrome yellow, phosphate, phosphomolybdate, aluminum dihydrogen tripolyphosphate, zinc molybdate, zinc borate, mica iron oxide , any one of titanium dioxide, zinc oxide, graphite, ultramarine blue, phthalocyanine blue, barium sulfate, iron red, barium sulfate or any combination thereof.
- the toner is 0-90% of the powder mass of the pretreated cyanamide waste residue, preferably 20-60%, more preferably 40-50%.
- the surface modification is performed within a comminution device or during a drying process.
- the surface modification can be completed in a pulverizer or in a drying process according to the type of modifier and processing technology, and can also be completed with special modification equipment after ultra-fine processing.
- the surface modification is carried out in a modification device including any one or any combination of a three-roll reformer, a high-speed mixer, and a tower reformer.
- the modifiers used in the surface modification include silane coupling agents, aluminate coupling agents, titanate coupling agents, rare earth coupling agents, fatty acids and their salts, polyalcohols, advanced Any one of alcohols, ammonium polyacrylate, sodium polyacrylate, sodium hexametaphosphate, and sodium tripolyphosphate, or any combination thereof.
- the dosage of the modifier is 0.01-25% of the powder quality of the ultra-finely processed cyanamide waste residue, such as 1%, 50%, 10% or 20%; the temperature at which the modification treatment is performed is 50-25%. 300°C, such as 100°C or 200°C.
- the cyanamide waste residue includes cyanamide waste residue, dicyanamide waste residue or a mixture of the two.
- the main chemical composition of the cyanamide waste residue of an enterprise in Ningxia is shown in Table 1.
- the adopted processing techniques are pulping, nitrogen fixation, wet magnetic separation, stirring mill pulverization, flash drying and surface modification.
- the specific preparation process parameters are as follows: first, under the action of 0.8% sodium polyacrylate, the cyanamide waste residue with a water content of 35.7% is directly beaten into a uniform slurry, and then 0.5% copper sulfate is added to the slurry. In the material, stirring was continued for 15 minutes (min). The slurry was then magnetically separated with a wet magnetic separator at a magnetic field strength of 1.2T.
- the slurry after magnetic separation was pulverized at 700 rpm for 20 min with a stirring mill, and then dried with a flash dryer at an air inlet temperature of 240°C and an air outlet temperature of 110°C to obtain pigment and filler A1 (chemical composition is shown in the table). 1 shown). Finally, for a part of the pigment and filler A1, stearic acid with a mass fraction of 1% was melted and sprayed into a flash dryer to obtain a modified pigment and filler A2.
- the particle size distribution of pigment filler A1 and modified pigment filler A2 is shown in Table 2.
- the main chemical composition of the dicyandiamide waste residue of an enterprise in Ningxia is shown in Table 3.
- the adopted processing techniques are pulping, nitrogen fixation, flash drying, dry magnetic separation, steam mill pulverization and surface modification.
- the specific preparation process parameters are as follows: firstly, under the action of potassium polycarboxylate with a mass fraction of 0.8%, the dicyandiamide waste residue with a water content of 40% is directly beaten into a uniform slurry, and the mass fraction of 0.6 % copper nitrate was added to the slurry, and stirring was continued for 15 min.
- pigment filler B1 the mass fraction of 0.5% silane coupling agent (Si69) and the mass fraction of 0.5% aluminate coupling agent were directly sprayed into the steam kinetic energy mill through the atomizing nozzle to carry out Modified pigments and fillers B2 were prepared by in-situ modification.
- the particle size distribution of pigment filler B1 and modified pigment filler B2 is shown in Table 4.
- Example 2 Utilize the pigments and fillers A1 and modified pigments and fillers A2 prepared in Example 1, carry out filling experiment in styrene-butadiene rubber, and carry out performance comparison with commercially available 1250 mesh light calcium carbonate (1200 yuan/ton).
- the rubber formula is: styrene-butadiene rubber (100 parts), stearic acid (1 part), sulfur (1.75 parts), zinc oxide (3 parts), accelerator NS (1 part), pigment and filler A1 or modified pigment and filler A2 or light calcium (40 servings).
- the raw materials in the formula are sequentially added to the internal mixer and mixed evenly, and then the triangular bag is punched 3 times in the open mixer, and the thin pass is 3 times. Under the vulcanization treatment for 17 minutes, the performance indicators were tested after the vulcanization molding was placed for 24 hours. The specific performance indicators are shown in Table 5:
- the PVC formula is: PVC (100 parts), calcium stearate (1 part), compound lead (8 parts), stearic acid (2 parts), solid paraffin (2 parts), chlorinated polyethylene (CPE) (4 parts) parts), CPR (1.5 parts), activated light calcium (50 parts) and carbon black (0.8 parts) or pigments and fillers B1 (50 parts) or modified pigments and fillers B2 (50 parts).
- the pigments and fillers and modified pigments and fillers prepared by the present invention can completely replace light calcium carbonate and active light calcium of the same fineness in rubber products, and can play the role of pigments in dark paints and plastics. It can replace the commonly used light calcium-titanium dioxide-carbon black system and calcium powder + carbon black system respectively.
- the method of the present invention can not only reduce the production cost of rubber, plastics and coatings, but also improve the performance of the products.
- the method of the invention has significant environmental protection significance and economic benefits, and has broad market prospects.
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Abstract
利用氰胺废渣制备复合材料用颜填料的方法包括如下步骤:预处理氰胺废渣,所述预处理包括对氰胺废渣进行打浆处理和固氮处理;对预处理后的氰胺废渣进行超细加工;对超细加工后的氰胺废渣进行表面改性。
Description
本发明属于工业固体废弃物绿色资源化利用领域,尤其涉及一种利用氰胺废渣制备复合材料用颜填料的方法。
氰胺废渣是工业上生产单氰胺或双氰胺过程中产生的废渣。新产生的废渣其含水45%左右,固相中主要成分为碳酸钙、碳、二氧化硅以及少量氧化铁、氧化镁、有机氮化物等杂质。氰胺废渣呈黑色,粒径在0-0.2mm之间,pH值在8-8.5之间,比表面积3.5-4.5m
3/g。每生产1吨(t)双氰胺约产生干基废渣5t。据统计,仅在石嘴山,氰胺废渣的产量就达到500万吨/年。大量氰胺废渣的堆积,不仅占用大量的土地,而且存在水资源和粉尘污染的隐患。
目前,人们对氰胺废渣的综合利用进行了大量的研究,如利用氰胺废渣生产硫脲、钙盐、氧化钙、碳酸钙、固体燃料、陶粒、烧结砖、水泥等。但上述生产过程不仅涉及酸、碱等化工处理过程,而且产生其它废弃物,也就是面临高能耗和产品附加值低的问题。
另外,在以氰胺渣废渣为原料制备橡塑填料的初级方法中,为氰胺渣的绿色高效利用指明方向。但是,两者生产工艺存在缺陷,对氰胺渣内有害成分如水溶性有机氮化物、重金属氧化物、氧化铁等,都未做处理。但是上述有害成分,对橡塑制品的耐水性、耐老化性、耐候性有较大的影响,导致产品很难在市场上大规模推广。
发明内容
鉴于上述的现有氰胺废渣在综合利用方面存在问题,提出了本发明所述的利用氰胺废渣制备复合材料用颜填料的方法。本发明所述的方法能够针对氰胺废渣自身的特性,结合相应的加工工艺,实现对氰胺废渣的绿色高值化利用。
根据本发明的一个方面,提供了一种利用氰胺废渣制备复合材料用颜填料的方法,所述方法包括原料预处理、超细加工和表面改性三个步骤:
(1)原料预处理:原料预处理包括打浆和固氮两个步骤。所述打浆是在分散剂的作用下,利用打浆机将氰胺废渣,打成浓度为20-80%的浆料。所述固氮是在打浆完毕后,往浆料中添加一定量的络合剂,并持续搅拌5-360分钟(min),通过络合反应将浆料中的可溶性 有机氮固定。
(2)超细加工:所述超细加工包括粉碎处理、干燥处理、磁选处理和调色处理,超细加工后的细粉可以作为颜填料,用于橡胶、塑料和涂料领域。所述粉碎处理、干燥处理、磁选处理和调色处理的工艺先后顺序可根据实际需要调整。所述粉碎步骤包括通过粉碎设备将固氮浆料或干燥后的固氮浆料,粉碎到一定细度。所述干燥处理包括通过干燥设备将固氮浆料或粉碎后的浆料干燥至含水量为0.8%以下。所述磁选处理包括利用湿法磁选设备或干法磁选设备,对固氮的浆料或干燥后的固氮浆料进行磁选,以降低氰胺废渣中重金属(例如铁、铅、汞、铬等)的含量。
(3)表面改性:通过合适的改性设备,选择合适的改性剂及用量,在一定条件下对细粉进行表面处理,制得改性颜填料可用于橡胶、塑料和涂料领域。
综上所述,本发明所述的方法至少具备以下优点中的一个:本发明所述的方法所涉及生产流程都为纯物理过程,不涉及强酸强碱、高压等过程,生产工艺安全、绿色、环保,无三废排放,而且水溶性氮化物、重金属和氧化铁都经过处理,不会影响下游制品性能。通过本发明所述的方法生产的颜填料,分散均匀、与树脂亲和性好、着色效果优异,可广泛应用于橡胶、塑料和涂料行业,真正实现对氰胺废渣的绿色高附加值利用。
为了更清楚地说明本发明实施方式的技术方案,下面将结合附图和详细实施方式对本发明进行详细说明,显而易见地,下面描述中的附图仅仅是本发明的一些实施方式,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它的附图。其中:
图1为根据本发明的一个实施例所述的利用氰胺废渣制备复合材料用颜填料的方法的流程图。
为使本发明的上述目的、特征和优点能够更加明显易懂,下面结合附图对本发明的具体实施方式做详细的说明。
参见图1,根据本发明的实施例,提供了一种利用氰胺废渣制备复合材料用颜填料的方法,所述方法包括:预处理氰胺废渣,所述预处理氰胺废渣包括对氰胺废渣进行打浆处理和固氮处理;对预处理后的氰胺废渣进行超细加工;对超细加工后的氰胺废渣进行表面改性。
在一个示例中,所述打浆处理包括在分散剂的作用下,通过打浆机将氰胺废渣打成浓度为20-80%的浆料,例如浓度为50%或60%;
所述固氮处理包括将络合剂添加到所述浆料中并搅拌,以通过络合反应将浆料中的可溶性有机氮固定。
进一步地,所述分散剂包括三聚磷酸钠、六偏磷酸钠、焦磷酸钠、聚丙烯酸盐、聚羧酸盐、聚丙烯酸酯、烷基磺酸盐和萘磺酸盐缩聚物中的任一种或它们的任意组合;
所述分散剂的用量为待处理的氰胺废渣质量的0.01-20%,例如1%、5%、10%或15%;
所述络合剂包括镍、铜、锰、铁和钴中任一种或它们的任何组合的可溶性盐;所述络合剂的用量为待处理的氰胺废渣质量的0.01-20%,例如1%、5%、10%或15%。
在一个示例中,对预处理后的氰胺废渣进行超细加工包括以粉碎处理、干燥处理、磁选处理和调色处理的任何组合次序对氰胺废渣进行处理,超细加工后的氰胺废渣的细粉直接用作所述复合颜填料。
具体地,所述粉碎处理包括通过粉碎设备将所述浆料或干燥后物料粉碎。
所述干燥处理包括将所述浆料干燥至含水量0.8%以下。
所述磁选处理包括利用湿法磁选设备或干法磁选设备对浆料或干燥后物料进行磁选,以降低浆料或物料中有害金属(例如铁、铅、汞、铬等)含量。
另外地,所述粉碎设备包括环辊磨、机械磨、干法球磨机、湿法球磨机、气流磨、蒸汽磨、热空气气流磨、湿法搅拌磨和砂磨机中的任一种或它们的任意组合。
粉碎后的氰胺废渣的细度在800-12500目之间,例如2000目、5000目、8000目或10000目。所述干燥设备包括离心式脱水机、压滤机、闪蒸干燥机、喷雾干燥机、流化床式干燥机、回转炉干燥机和滚筒干燥机中的任一种或它们的任意组合,所述干燥处理的温度在100-250℃之间,例如150℃或200℃。
所述干法磁选机或湿法磁选机的磁场强度的范围在0.02-2.0T之间(例如1T)的范围内,磁选出的氰胺废渣的尾渣用作水泥原料。
所述调色处理是在粉碎过程中将调色剂与氰氨废渣混合后一起进行粉碎。所述调色剂的作用为调节物料色度和提高防锈性能。所述调色剂包括红丹、锶铬黄、锌铬黄、钡铬黄、钙铬黄、磷酸盐、磷钼酸盐、三聚磷酸二氢铝、钼酸锌、硼酸锌、云母氧化铁、钛白粉、氧化锌、石墨、群青、酞菁蓝、硫酸钡、铁红、硫酸钡中的任一种或它们的任意组合。所述调色剂为预处理后的氰胺废渣的粉体质量的0-90%,优选地20-60%,更优选地40-50%。
在一个示例中,在粉碎设备内或干燥处理过程中执行所述表面改性。所述表面改性可根 据改性剂类型和加工工艺在粉碎机内或干燥过程中完成,也可在超细加工后用专用的改性设备完成。
具体地,在改性设备内执行所述表面改性,所述改性设备包括三辊改性机、高速搅拌机和塔式改性机中的任一种或它们的任意组合。
进一步地,所述表面改性中使用的改性剂包括硅烷偶联剂、铝酸酯偶联剂、钛酸酯偶联剂、稀土偶联剂、脂肪酸及其盐、聚醇类物质、高级醇类、聚丙烯酸铵、聚丙烯酸钠、六偏磷酸钠和三聚磷酸钠中的任一种或它们的任意组合。
所述改性剂的用量为超细加工后的氰胺废渣的粉体质量的0.01-25%,例如1%、50%、10%或20%;所述改性处理所在的温度为50-300℃,例如100℃或200℃。
可选地,所述氰胺废渣包括单氰胺废渣、双氰胺废渣或它们两者的混合物。
以下提供了几个具体的实施例来详细说明本发明的方法的各个步骤,显然,本发明的技术方案不限于下述提供的实施例的限制。
实施例1
宁夏某企业的单氰胺废渣其主要化学组成如表1所示。在本实施例中,采用的加工工艺为打浆、固氮、湿法磁选、搅拌磨粉碎、闪蒸干燥和表面改性。具体制备工艺参数如下:首先利用打浆机在0.8%的聚丙烯酸钠的作用下,将含水量为35.7%的单氰胺废渣直接打成均匀的浆料后,再把0.5%的硫酸铜加入浆料中,继续搅拌15分钟(min)。然后用湿法磁选机在1.2T的磁场强度下对浆料进行磁选。将磁选后的浆料用搅拌磨在700rpm转速下粉碎20min后,利用闪蒸干燥机在进风口温度240℃,出风口温度110℃下,进行干燥,制得颜填料A1(化学组成如表1所示)。最后,对于颜填料A1中的一部分,把质量分数为1%的硬脂酸融化后喷入闪蒸干燥机内,制得改性颜填料A2。颜填料A1和改性颜填料A2的粒度分布如表2所示。
表1物料化学组成
表2不同颜填料粒度分布
实施例2:
宁夏某企业的双氰胺废渣其主要化学组成如表3所示。在本实施例中,采用的加工工艺为打浆、固氮、闪蒸干燥,干法磁选、蒸汽磨粉碎和表面改性。具体制备工艺参数如下:首先利用打浆机在质量分数为0.8%的聚羧酸钾的作用下,将含水量为40%的双氰胺废渣直接打成均匀的浆料后,把质量分数为0.6%的硝酸铜加入浆料中,继续搅拌15min。利用闪蒸干燥机在进风口温度240℃,出风口温度110℃下,将固氮浆料进行干燥,然后用干磁选机在1.2T的磁场强度下对干燥后物料进行磁选。将磁选后物料与质量分数为1%的锌铬黄混合均匀,再用蒸汽动能磨在1.2Mpa蒸汽压力、蒸汽动能磨内温度180℃、分级机转速为1600rpm的条件下,进行粉碎制得颜填料B1(化学组成如表3)所示。最后,针对于颜填料B1的一部分将质量分数为0.5%的硅烷偶联剂(Si69)和质量分数为0.5%的铝酸酯偶联剂,通过雾化喷嘴直接喷入蒸汽动能磨内,进行原位改性制得改性颜填料B2。颜填料B1和改性颜填料B2的粒度分布如表4所示。
表3物料化学组成
表4不同颜填料粒度分布
实施例3:
利用实施例1中制备的颜填料A1和改性颜填料A2,在丁苯橡胶中进行填充实验,并 与市售1250目轻质碳酸钙(1200元/吨)进行性能对比。橡胶配方为:丁苯橡胶(100份)、硬脂酸(1份)、硫磺(1.75份),氧化锌(3份),促进剂NS(1份),颜填料A1或改性颜填料A2或轻钙(40份)。采用1段混炼工艺将配方中原料依次加入密炼机混合均匀,然后在开炼机中打三角包3次,薄通3次,放置6小时(h)后,用平板硫化仪在15Mpa压力下,硫化处理17min,硫化成型放置24h后测试性能指标。具体性能指标如表5所示:
表5填充性能对比表
实施例4:
利用实施例2中制备的颜填料B1和改性颜填料B2,在(聚氯乙烯)PVC中进行填充实验,并与市售1250目的活性轻质碳酸钙(1400元/吨)进行性能对比。PVC配方为:PVC(100份)、硬脂酸钙(1份)、复合铅(8份),硬脂酸(2份),固体石蜡(2份),氯化聚乙烯(CPE)(4份),CPR(1.5份),活性轻钙(50份)和炭黑(0.8份)或颜填料B1(50份)或改性颜填料B2(50份)。高速搅拌机静态升温至150℃后,按照PVC配方将所有物料倒入高搅机内混合搅拌15min并除去物料中的水分,然后将干燥的混合物料用挤出机(挤出温度155-170℃)挤出后,在水中冷却,接着放入粉碎机里粉碎,最后将所得到的粒子置于70℃的烘箱中烘干8h,然后在200℃的注塑机中注射成标准样条,进行性能测试。具体性能指标如表6所示:
表6不同类型填料填充性能对比表
实施例5:
利用实施例1和实施例2中制备的颜填料B1和改性颜填料B2,在灰色防腐水性涂料中与常用的颜填料体系(炭黑+钛白体+碳酸钙,对照例)进行对比实验。涂料配方和性能对比如表7所示:
表7灰色防腐水性涂料配方、涂料制备工艺及性能对比
通过上述对比分析可知,通过本发明制备的颜填料和改性颜填料可以在橡胶制品中完全替代同等细度的轻质碳酸钙和活性轻钙,而在深色涂料和塑料中能够起到颜料和填料的双重作用,分别替代常用的轻钙-钛白粉-炭黑体系和钙粉+炭黑体系。本发明的方法不仅能够降低橡胶、塑料和涂料的生产成本,而且能够提高制品性能。本发明的方法具有显著的环保意义和经济效益,市场前景广阔。
虽然本总体发明构思的一些实施例已被显示和说明,本领域普通技术人员将理解,在不背离本总体发明构思的原则和精神的情况下,可对这些实施例做出改变,本发明的范围以权利要求和它们的等同物限定。
Claims (17)
- 一种利用氰胺废渣制备复合材料用颜填料的方法,所述方法包括:预处理氰胺废渣,所述预处理氰胺废渣包括对氰胺废渣进行打浆处理和固氮处理;对预处理后的氰胺废渣进行超细加工;对超细加工后的氰胺废渣进行表面改性。
- 根据权利要求1所述的方法,其中,所述打浆处理包括在分散剂的作用下,通过打浆机将氰胺废渣打成浓度为20-80%的浆料;所述固氮处理包括将络合剂添加到所述浆料中并搅拌,以通过络合反应将浆料中的可溶性有机氮固定。
- 根据权利要求2所述的方法,其中,所述分散剂包括三聚磷酸钠、六偏磷酸钠、焦磷酸钠、聚丙烯酸盐、聚羧酸盐、聚丙烯酸酯、烷基磺酸盐和萘磺酸盐缩聚物中的任一种或它们的任意组合;所述分散剂的用量为待处理的氰胺废渣质量的0.01-20%。
- 根据权利要求3所述的方法,其中,所述络合剂包括镍、铜、锰、铁和钴中任一种或它们的任何组合的可溶性盐;所述络合剂的用量为待处理的氰胺废渣质量的0.01-20%。
- 根据权利要求1所述的方法,其中,对预处理后的氰胺废渣进行超细加工包括以粉碎处理、干燥处理、磁选处理和调色处理的任何组合次序对氰胺废渣进行处理,超细加工后的氰胺废渣的细粉直接用作所述颜填料。
- 根据权利要求5所述的方法,其中,所述粉碎处理包括通过粉碎设备将所述浆料或干燥后物料粉碎。
- 根据权利要求5所述的方法,其中,所述干燥处理包括将所述浆料干燥至含水量0.8%以下。
- 根据权利要求5所述的方法,其中,所述磁选处理包括利用湿法磁选设备或干法磁 选设备对浆料进行磁选,以使得磁选后的浆料中的重金属的含量在0.1%以下。
- 根据权利要求5所述的方法去,其中,在粉碎过程中将调色剂与氰氨废渣混合后一起进行粉碎以执行所述调色处理。
- 根据权利要求6所述的方法,其中,所述粉碎设备包括环辊磨、机械磨、干法球磨机、湿法球磨机、气流磨、蒸汽磨、热空气气流磨、湿法搅拌磨和砂磨机中的任一种或它们的任意组合;粉碎后的氰胺废渣的细度在800-12500目之间。
- 根据权利要求7所述的方法,其中,由干燥设备执行所述干燥处理,所述干燥设备包括离心式脱水机、压滤机、闪蒸干燥机、喷雾干燥机、流化床式干燥机、回转炉干燥机和滚筒干燥机中的任一种或它们的任意组合,所述干燥处理的温度在100-250℃之间。
- 根据权利要求8所述的方法,其中,所述干法磁选机或湿法磁选机的磁场强度的范围在0.02-2.0T之间,磁选出的氰胺废渣的尾渣用作水泥原料。
- 根据权利要求9所述的方法,其中,所述调色剂包括红丹、锶铬黄、锌铬黄、钡铬黄、钙铬黄、磷酸盐、磷钼酸盐、三聚磷酸二氢铝、钼酸锌、硼酸锌、云母氧化铁、钛白粉、氧化锌、石墨、群青、酞菁蓝、硫酸钡、铁红、硫酸钡中的任一种或它们的任意组合;所述调色剂为预处理后的氰胺废渣的粉体质量的0-90%。
- 根据权利要求1-13中任一项所述的方法,其中,在粉碎设备内或干燥处理过程中执行所述表面改性。
- 根据权利要求1-13中任一项所述的方法,其中,在表面改性设备内执行所述表面改性,所述改性设备包括三辊改性机、高速搅拌机和塔式改性机中的任一种或它们的任意组合。
- 根据权利要求14或15所述的方法,其中,所述表面改性中使用的改性剂包括硅烷 偶联剂、铝酸酯偶联剂、钛酸酯偶联剂、稀土偶联剂、脂肪酸及其盐、聚醇类物质、高级醇类、聚丙烯酸铵、聚丙烯酸钠、六偏磷酸钠和三聚磷酸钠中的任一种或它们的任意组合;所述改性剂的用量为超细加工后的氰胺废渣的粉体质量的0.01-25%;所述改性处理的温度为50-300℃。
- 根据权利要求1-16中任一项所述的方法,其中,所述氰胺废渣包括单氰胺废渣、双氰胺废渣或它们两者的混合物。
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DE2649404A1 (de) * | 1976-10-29 | 1978-05-03 | Sueddeutsche Kalkstickstoff | Verfahren zur gewinnung von graphit aus den rueckstaenden der kalkstickstoffhydrolyse |
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