CN113198472B - 一种磁性催化剂及其制备和应用 - Google Patents
一种磁性催化剂及其制备和应用 Download PDFInfo
- Publication number
- CN113198472B CN113198472B CN202110392661.3A CN202110392661A CN113198472B CN 113198472 B CN113198472 B CN 113198472B CN 202110392661 A CN202110392661 A CN 202110392661A CN 113198472 B CN113198472 B CN 113198472B
- Authority
- CN
- China
- Prior art keywords
- catalyst
- carrier
- solvent
- temperature
- reaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 150000003997 cyclic ketones Chemical class 0.000 claims abstract description 21
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 20
- -1 cyclic lactone Chemical class 0.000 claims abstract description 19
- 229910000314 transition metal oxide Inorganic materials 0.000 claims abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 238000003756 stirring Methods 0.000 claims description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 31
- 238000010992 reflux Methods 0.000 claims description 30
- 239000002904 solvent Substances 0.000 claims description 30
- 238000001035 drying Methods 0.000 claims description 28
- 239000008367 deionised water Substances 0.000 claims description 23
- 229910021641 deionized water Inorganic materials 0.000 claims description 23
- 238000001914 filtration Methods 0.000 claims description 18
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 claims description 16
- 239000006185 dispersion Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 11
- 239000002202 Polyethylene glycol Substances 0.000 claims description 11
- NQXWGWZJXJUMQB-UHFFFAOYSA-K iron trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].Cl[Fe+]Cl NQXWGWZJXJUMQB-UHFFFAOYSA-K 0.000 claims description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 10
- 239000012716 precipitator Substances 0.000 claims description 10
- 230000003244 pro-oxidative effect Effects 0.000 claims description 10
- BDKLKNJTMLIAFE-UHFFFAOYSA-N 2-(3-fluorophenyl)-1,3-oxazole-4-carbaldehyde Chemical compound FC1=CC=CC(C=2OC=C(C=O)N=2)=C1 BDKLKNJTMLIAFE-UHFFFAOYSA-N 0.000 claims description 9
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 235000017281 sodium acetate Nutrition 0.000 claims description 9
- 229940087562 sodium acetate trihydrate Drugs 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 8
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 8
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 8
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 150000003608 titanium Chemical class 0.000 claims description 7
- 229910052723 transition metal Inorganic materials 0.000 claims description 7
- VGVHNLRUAMRIEW-UHFFFAOYSA-N 4-methylcyclohexan-1-one Chemical compound CC1CCC(=O)CC1 VGVHNLRUAMRIEW-UHFFFAOYSA-N 0.000 claims description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 6
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 6
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- 229910020599 Co 3 O 4 Inorganic materials 0.000 claims description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 4
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- LFSAPCRASZRSKS-UHFFFAOYSA-N 2-methylcyclohexan-1-one Chemical compound CC1CCCCC1=O LFSAPCRASZRSKS-UHFFFAOYSA-N 0.000 claims description 3
- OKSDJGWHKXFVME-UHFFFAOYSA-N 4-ethylcyclohexan-1-one Chemical compound CCC1CCC(=O)CC1 OKSDJGWHKXFVME-UHFFFAOYSA-N 0.000 claims description 3
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 3
- MQWCXKGKQLNYQG-UHFFFAOYSA-N methyl cyclohexan-4-ol Natural products CC1CCC(O)CC1 MQWCXKGKQLNYQG-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229960004063 propylene glycol Drugs 0.000 claims description 3
- GROMGGTZECPEKN-UHFFFAOYSA-N sodium metatitanate Chemical compound [Na+].[Na+].[O-][Ti](=O)O[Ti](=O)O[Ti]([O-])=O GROMGGTZECPEKN-UHFFFAOYSA-N 0.000 claims description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 230000005587 bubbling Effects 0.000 claims description 2
- 235000013877 carbamide Nutrition 0.000 claims description 2
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims description 2
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims description 2
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 claims description 2
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 2
- 229920000428 triblock copolymer Polymers 0.000 claims description 2
- 238000011068 loading method Methods 0.000 abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 14
- 239000001301 oxygen Substances 0.000 abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 abstract description 14
- 239000000758 substrate Substances 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 description 14
- 150000002596 lactones Chemical class 0.000 description 12
- 230000003647 oxidation Effects 0.000 description 12
- 239000002245 particle Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 6
- 238000004817 gas chromatography Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 6
- 238000001132 ultrasonic dispersion Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 150000004965 peroxy acids Chemical class 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000006220 Baeyer-Villiger oxidation reaction Methods 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
- NFLGAXVYCFJBMK-RKDXNWHRSA-N (+)-isomenthone Natural products CC(C)[C@H]1CC[C@@H](C)CC1=O NFLGAXVYCFJBMK-RKDXNWHRSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NFLGAXVYCFJBMK-UHFFFAOYSA-N Menthone Chemical compound CC(C)C1CCC(C)CC1=O NFLGAXVYCFJBMK-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012824 chemical production Methods 0.000 description 2
- SXTLQDJHRPXDSB-UHFFFAOYSA-N copper;dinitrate;trihydrate Chemical compound O.O.O.[Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O SXTLQDJHRPXDSB-UHFFFAOYSA-N 0.000 description 2
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical compound CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 description 2
- 229940071161 dodecylbenzenesulfonate Drugs 0.000 description 2
- 229930007503 menthone Natural products 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- QQZMWMKOWKGPQY-UHFFFAOYSA-N cerium(3+);trinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O QQZMWMKOWKGPQY-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- QGUAJWGNOXCYJF-UHFFFAOYSA-N cobalt dinitrate hexahydrate Chemical compound O.O.O.O.O.O.[Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O QGUAJWGNOXCYJF-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229920006238 degradable plastic Polymers 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- ALIMWUQMDCBYFM-UHFFFAOYSA-N manganese(2+);dinitrate;tetrahydrate Chemical compound O.O.O.O.[Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ALIMWUQMDCBYFM-UHFFFAOYSA-N 0.000 description 1
- 239000012567 medical material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- AOPCKOPZYFFEDA-UHFFFAOYSA-N nickel(2+);dinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O AOPCKOPZYFFEDA-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- OKBMCNHOEMXPTM-UHFFFAOYSA-M potassium peroxymonosulfate Chemical compound [K+].OOS([O-])(=O)=O OKBMCNHOEMXPTM-UHFFFAOYSA-M 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/745—Iron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/75—Cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/755—Nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/83—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/33—Electric or magnetic properties
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/16—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D309/28—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D309/30—Oxygen atoms, e.g. delta-lactones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D313/00—Heterocyclic compounds containing rings of more than six members having one oxygen atom as the only ring hetero atom
- C07D313/02—Seven-membered rings
- C07D313/04—Seven-membered rings not condensed with other rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
本发明提供了一种磁性催化剂及其制备方法,其特征在于所述的催化剂由活性组分、助催化剂、活性载体组分组成,其中活性组分为过渡金属氧化物中的一种,活性载体为Fe3O4,助催化剂为TiO2;其中活性组分负载质量为1~3%,助催化剂负载质量为4~10%。催化剂用于催化环酮制备环状内酯,反应以空气为氧源,底物环酮的转化率较高,目标产物选择性最高可达到97%。本方法制备的催化剂具有高活性、高选择性、良好稳定性等优点,催化剂与产物易分离,且催化剂具有优异的重复性能,具有良好的工业应用前景。
Description
技术领域
本发明涉及一种磁性催化剂及其制备和应用,尤其涉及一种的磁性MxOy/TiO2@Fe3O4(M=Cu、Co、Ni、Ce、Mn)催化剂及其制备方法和用于催化环酮合成环状内酯。
背景技术
聚酯可由有机环状内酯开环聚合合成,聚酯因具有良好的可塑性、生物相容性、高结晶性等特点,在医学材料、可降解塑料、热熔胶合剂等领域有着广泛的应用,在环保领域有良好的应用前景。聚酯拥有巨大的市场价值,据报道,聚酯在2015年总产能约为4700万吨,在2020年总产能约为6397.5万吨,产能年均增长率为6.18%,预计2023年产能将达到7500万吨。
有机环状内酯是合成聚酯的重要单体之一,低分子量的内酯为无色、易挥发的芳香液体,高分子量的内酯为无色无味的蜡状固体,其主要应用于合成聚酯、与脂类共聚和改性树脂,能够改善共聚物的物理性能和树脂的透光性、光泽和防粘性等性能,因此有机环状内酯具有巨大的应用潜力和广阔的市场前景。目前,有机环状内酯的合成主要采用Baeyer-Villiger氧化反应,该反应为有机化学研究的热点之一,学者们不断深入研究开发新型催化剂和提升催化剂的催化性能。
1899年,Baeyer和Villiger首次使用过氧硫酸氢钾催化氧化薄荷酮,成功将薄荷酮氧化成相应的内酯,因此将直链酮或环酮一步氧化反应生成相应的酯或内酯的反应命名为Baeyer-Villiger氧化反应。经过100多年的发展,Baeyer-Villiger氧化反应不断被学者研究,根据氧化剂种类的不同,目前主要的合成方法可以分为过氧酸氧化法、生物酶氧化法、过氧化氢氧化法以及氧气(空气)氧化法。
工业上通常使用过氧酸氧化法生产内酯,但该生产工艺存在过氧酸对设备腐蚀严重、操作复杂、污染严重、存在安全隐患等问题,国内很少有企业能够使用该方法制备内酯(卢乔森等,己内酯生产工艺研究进展[J]Modern Chemical Industry 2015,35(2):36-39)。与过氧酸氧化法相比,双氧水氧化法以双氧水为氧化剂直接氧化底物环酮,简化了反应流程,对环境友好,减少了安全隐患,但是双氧水的氧化能力较弱,需要使用过量的双氧水参与反应,部分双氧水无效分解使得双氧水利用率较低,多余的水分会使内酯发生水解。采用氧气(空气)氧化法,理论上环酮可完全转化为内酯,符合现代化绿色化工生产要求,且氧气(空气)的氧化效率高,内酯收率高,生产更安全,故氧气(空气)氧化法具有巨大的研究价值。在专利授权公告号为CN102603447A(一种制备有机内酯的方法)和专利授权公告号为为CN102702152A(一种制备有机内酯的方法)中,以氧气为氧源催化环酮氧化,合成的内酯收率都很高。与氧气相比,空气更廉价易得,以空气为氧源时,因空气的氧化能力较弱,在不加入催化剂的条件下氧化反应难以进行,因此需要设计和开发高效的催化剂。
发明内容
本发明的一个目的在于,提供一种的磁性催化剂,以空气为氧源,催化环酮合成环状内酯,本发明另一个目的在于提供上述催化剂的制备方法,本发明还有一目的是提供上述催化剂在催化环酮合成环状内酯中的应用。
本发明的技术方案为:一种磁性催化剂,其特征在于所述的催化剂由活性组分、助催化剂、活性载体组分组成,其中活性组分为过渡金属氧化物中的一种,活性载体为Fe3O4,助催化剂为TiO2;其中活性组分负载质量为1~3%,助催化剂负载质量为4~10%。
优选所述的过渡金属氧化物为CuO、Co3O4、NiO、CeO2或MnO2中的一种。
本发明还提供了一种制备上述的磁性催化剂的方法,其具体步骤为:
(1)Fe3O4载体的制备:采用高温回流的方式制备具有多孔球状结构的Fe3O4载体,所制得的Fe3O4载体的孔隙率为40~45%,粒径尺寸为300~500nm;
(2)磁性催化剂的制备:将Fe3O4载体和分散剂超声分散于溶剂中,将分散液转移至水浴锅中搅拌;将无机钛盐和无机过渡金属盐溶于去离子水中,缓慢将金属盐水溶液滴加至水浴搅拌的分散液中,继续搅拌,最后加入沉淀剂,转移至水热釜中高温水热反应,水热结束后自然冷却,分别用去离子水和乙醇洗涤,干燥,焙烧后得到磁性催化剂。
优选步骤(1)中采用高温回流的方式制备具有多孔球状结构的Fe3O4载体的具体步骤为:称取六水合三氯化铁和聚乙二醇加入到溶剂中,搅拌混合均匀,再加入三水合乙酸钠,继续搅拌,转移至回流装置,高温回流,回流结束后自然冷却,过滤,洗涤,干燥,得到具有多孔球状结构的Fe3O4载体;其中六水合三氯化铁、聚乙二醇、溶剂和三水乙酸钠的质量比为1:(0.07~0.19):(18~30):(0.18~0.3);溶剂为乙二醇、1,2-丙二醇、二乙二醇、丙三醇或1,4-丁二醇中的任一种;回流温度为180~220℃,回流时间为12~36h。
优选步骤(2)中所述的分散剂为十六烷基三甲基溴化铵(CTAB)、聚环氧乙烷-聚环氧丙烷-聚环氧乙烷三嵌段共聚物(P123)或十二烷基苯磺酸钠(DBS)中的任一种;溶剂为甲醇、乙醇或去离子水中的任一种;无机钛盐为四氯化钛、钛酸钾、钛酸钠或异丙醇钛中的任一种;无机过渡金属盐为硝酸铜、硝酸钴、硝酸镍、硝酸铈或硝酸锰中的任一种;沉淀剂为氨水、尿素或碳酸氢钠中的任一种。
优选步骤(2)中活性载体Fe3O4、无机钛盐和无机过渡金属盐的质量比为1:(0.2~0.5):(0.05~0.3);活性载体、分散剂、沉淀剂和溶剂的质量比为1:(0.1~0.3):(0.3~0.6):(40~60)。
优选步骤(2)中水浴锅温度为40~60℃;水热釜的反应温度为160~200℃,水热反应时间为12~36h;干燥温度为60~100℃,干燥时间为6~12h;焙烧温度为400~600℃,焙烧时间为2~5h。
本发明还提供了上述的磁性催化剂在催化环酮合成环状内酯的应用。其具体步骤如下:在三口烧瓶中加入依次加入磁性催化剂、环酮、助氧化剂苯甲醛和溶剂,使用鼓泡法通入空气后开始反应,结束后利用磁性铁棒分离出催化剂,其中环酮、助氧化剂和溶剂的质量比为1:(2~4):(10~30);催化剂用量为所加入环酮质量的5%~20%;环酮为环戊酮、2-甲基环己酮、环己酮、4-甲基环己酮或4-乙基环己酮中的任一种;溶剂为乙腈、乙酸乙酯或1,2-二氯乙烷中的任一种;空气流速为10~40mL/min;压力为常压;反应温度为30~60℃,反应时间为6~12h。
有益效果:
先使用高温回流方式制备具有多孔球状结构的Fe3O4作为载体,使用乙二醇、丙三醇等溶剂作为还原剂,有利于载体Fe3O4表面形成多孔结构和生成更多的羟基位,使得活性组分更容易负载;使用四氯化钛等无机钛盐作为钛源,避免使用钛酸四丁酯类物质,不需要在制备过程中添加盐酸等物质控制溶液酸度;TiO2作为助催化剂具有氧空位,有利于催化剂吸附空气中氧气,以提升催化剂催化性能;负载过渡金属元素后,催化剂催化性能得到进一步提升,Cu、Ni、Ce等金属能够与载体Fe3O4起到很好的协同作用。以空气作为氧源,空气廉价易得,降低了生产成本,且反应选择性较高,反应几乎没有其它副产物产生,符合绿色化工生产的理念。
具体实施方式
以下用实施例对本发明作更详细的描述。这些实施例仅仅是对本发明最佳实施方式的描述,并不对本发明的保护范围有任何限制。
实施例1
CuO/TiO2@Fe3O4的制备
步骤1.将2.7g六水合三氯化铁、0.3g聚乙二醇加入到50g乙二醇溶剂中,常温下搅拌30min,搅拌均匀后加入0.8g三水合乙酸钠,继续搅拌3h,转移至回流装置,200℃回流24h,回流结束后自然冷却,过滤分离出黑褐色固体,分别用去离子水和乙醇洗涤3次,于60℃烘箱中干燥12h,得到1.2g多孔球状Fe3O4载体。(孔隙率为45%,粒径尺寸为500nm)
步骤2.将1g Fe3O4载体和0.1g CTAB溶于40g甲醇中进行超声分散30min,然后将分散液置于40℃水浴锅中搅拌,称取0.2g四氯化钛和0.1g三水合硝酸铜溶于20g去离子水中,缓慢将金属盐水溶液滴加至水浴搅拌的分散液中,搅拌30min,最后加入0.3g沉淀剂尿素,继续搅拌30min,转入水热釜中,放入200℃烘箱中水热12h,反应结束后自然冷却,过滤,分别用去离子水和乙醇洗涤3次,于60℃烘箱中干燥12h,600℃焙烧2h,得到1.1g CuO/TiO2@Fe3O4催化剂(CuO负载量为1%,TiO2负载量为4%)。
实施例2
Co3O4/TiO2@Fe3O4的制备
步骤1.将2.7g六水合三氯化铁、0.4g聚乙二醇加入到60g 1,2-丙二醇溶剂中,常温下搅拌30min,搅拌均匀后加入0.8g三水合乙酸钠,继续搅拌3h,转移至回流装置,180℃回流24h,回流结束后自然冷却,过滤分离出黑褐色固体,过滤分离出褐色固体,分别用去离子水和乙醇洗涤3次,于80℃烘箱中干燥12h,得到1.2g多孔球状Fe3O4载体。(孔隙率为40%,粒径尺寸为300nm)
步骤2.将1g Fe3O4载体和0.2g P123溶于60g乙醇中进行超声分散30min,然后将分散液置于60℃水浴锅中搅拌,称取0.3g钛酸钾和0.1g六水合硝酸钴溶于20g去离子水中,缓慢将金属盐水溶液滴加至水浴搅拌的分散液中,搅拌30min,最后加入0.6g沉淀剂氨水,继续搅拌30min,转入水热釜中,放入200℃烘箱中水热24h,反应结束后自然冷却,过滤,分别用去离子水和乙醇洗涤3次,于60℃烘箱中干燥12h,550℃焙烧3h,得到1.1g Co3O4/TiO2@Fe3O4催化剂(Co3O4负载量为1%,TiO2负载量为6%)。
实施例3
NiO/TiO2@Fe3O4的制备
步骤1.将2.7g六水合三氯化铁、0.5g聚乙二醇加入到50g丙三醇溶剂中,常温下搅拌30min,搅拌均匀后加入0.7g三水合乙酸钠,继续搅拌3h,转移至回流装置,220℃回流12h,回流结束后自然冷却,过滤分离出黑褐色固体,分别用去离子水和乙醇洗涤3次,于100℃烘箱中干燥6h,得到1.2g多孔球状Fe3O4载体。(孔隙率为43%,粒径尺寸为400nm)
步骤2.将1g Fe3O4载体和0.3g DBS溶于60g去离子水中进行超声分散30min,然后将分散液置于40℃水浴锅中搅拌,分别称取0.3g钛酸钠和0.2g六水合硝酸镍溶于20g去离子水中,缓慢将金属盐水溶液滴加至水浴搅拌的分散液中,搅拌30min,最后加入0.5g沉淀剂碳酸氢钠,继续搅拌30min,转入水热釜中,放入180℃烘箱中水热36h,反应结束后自然冷却,过滤,分别用去离子水和乙醇洗涤3次,于80℃烘箱中干燥8h,500℃焙烧3h,得到1.1gNiO/TiO2@Fe3O4催化剂(NiO负载量为2%,TiO2负载量为6%)。
实施例4
CeO2/TiO2@Fe3O4的制备
步骤1.将2.7g六水合三氯化铁、0.3g聚乙二醇加入到70g二乙二醇溶剂中,常温下搅拌30min,搅拌均匀后加入0.6g三水合乙酸钠,继续搅拌3h,转移至回流装置,180℃回流36h,回流结束后自然冷却,过滤分离出黑褐色固体,分别用去离子水和乙醇洗涤3次,于100℃烘箱中干燥6h,得到1.2g多孔球状Fe3O4载体。(孔隙率为43%,粒径尺寸为400nm)
步骤2.将1g Fe3O4载体和0.2g CTAB溶于50g乙醇中进行超声分散30min,然后将分散液置于60℃水浴锅中搅拌,称取0.5g异丙醇钛和0.3g六水合硝酸铈溶于20g去离子水中,缓慢将金属盐水溶液滴加至水浴锅中的分散液,搅拌30min,最后加入0.5g沉淀剂氨水,继续搅拌30min,转入水热釜中,放入180℃烘箱中水热24h,反应结束后自然冷却,过滤,分别用去离子水和乙醇洗涤3次,于100℃烘箱中干燥6h,450℃焙烧4h,得到1.2g CeO2/TiO2@Fe3O4催化剂(CeO2负载量为3%,TiO2负载量为10%)。
实施例5
MnO2/TiO2@Fe3O4的制备
步骤1.将2.7g六水合三氯化铁、0.5g聚乙二醇加入到80g 1,4-丁二醇溶剂中,常温下搅拌30min,搅拌均匀后加入0.5g三水合乙酸钠,继续搅拌3h,转移至回流装置,200℃回流24h,回流结束后自然冷却,过滤分离出黑褐色固体,分别用去离子水和乙醇洗涤3次,于80℃烘箱中干燥12h,得到1.2g多孔球状Fe3O4载体。(孔隙率为40%,粒径尺寸为300nm)
步骤2.将1g Fe3O4载体和0.2g CTAB溶于50g乙醇中进行超声分散30min,然后将分散液置于60℃水浴锅中搅拌,称取0.4g异丙醇钛和0.1g四水合硝酸锰溶于20g去离子水中,缓慢将金属盐水溶液滴加至水浴搅拌的分散液中,搅拌30min,最后加入0.3g沉淀剂尿素,继续搅拌30min,转入水热釜中,放入160℃烘箱中水热24h,反应结束后自然冷却,过滤,分别用去离子水和乙醇洗涤3次,于100℃烘箱中干燥6h,400℃焙烧5h,得到1.2g MnO2/TiO2@Fe3O4催化剂(MnO2负载量为1%,TiO2负载量为8%)。
以磁性MxOy/TiO2@Fe3O4(M=Cu、Co、Ni、Ce、Mn)为催化剂催化环酮合成环状内酯:
应用例1
在三口烧瓶中依次加入CuO/TiO2@Fe3O4催化剂(0.1g)、环己酮(1g)、助氧化剂苯甲醛(3g)和溶剂1,2-二氯乙烷(20g),通入30mL/min空气,50℃反应6h。将所得产物经过滤取清液进行气相色谱分析,选择性为97.10%,产率为95.44%。
应用例2
在三口烧瓶中依次加入Co3O4/TiO2@Fe3O4催化剂(0.05g)、环戊酮(1g)、助氧化剂苯甲醛(3g)和溶剂乙腈(10g),通入10mL/min空气,30℃反应12h。将所得产物经过滤取清液进行气相色谱分析,选择性为94.10%,产率为82.21%。
应用例3
在三口烧瓶中依次加入NiO/TiO2@Fe3O4催化剂(0.05g)、2-甲基环己酮(1g)、助氧化剂苯甲醛(3g)和溶剂乙酸乙酯(15g),通入20mL/min空气,40℃反应12h。将所得产物经过滤取清液进行气相色谱分析,选择性为93.21%,产率为90.20%。
应用例4
在三口烧瓶中依次加入CeO2/TiO2@Fe3O4催化剂(0.2g)、4-甲基环己酮(1g)、助氧化剂苯甲醛(4g)和1,2-二氯乙烷溶剂(20g),通入30mL/min空气,60℃反应6h。将所得产物经过滤取清液进行气相色谱分析,选择性为93.10%,产率为86.52%。
应用例5
在三口烧瓶中依次加入MnO2/TiO2@Fe3O4催化剂(0.1g)、4-乙基环己酮(1g)、助氧化剂苯甲醛(3g)和溶剂乙酸乙酯(30g),通入40mL/min空气,60℃反应6h。将所得产物经过滤取清液进行气相色谱分析,选择性为91.33%,产率为85.21%。
应用例6
过滤收集应用例1反应后的CuO/TiO2@Fe3O4催化剂,将催化剂在80℃下真空干燥,测试催化剂的循环使用性能。循环使用结果如表1所示。
表1催化剂CuO/TiO2@Fe3O4的循环使用情况
由表1可知:本发明提供的CuO/TiO2@Fe3O4催化剂可以以空气为氧源,催化环酮合成内酯,催化剂具有催化剂易回收、重复使用性高等优点。
对比例1
采用商业购买的纳米Fe3O4为载体,纳米Fe3O4呈纳米球状,分子量为231.53,粒径尺寸为400-500nm,CAS编号1317-61-9,EC号为215-277-5,货号为M120292。
将1g商业购买的Fe3O4载体和0.1g CTAB溶于40g甲醇中进行超声分散30min,然后将分散液置于40℃水浴锅中搅拌,称取0.2g四氯化钛和0.1g三水合硝酸铜溶于20g去离子水中,缓慢将金属盐水溶液滴加至水浴搅拌的分散液中,搅拌30min,最后加入0.3g沉淀剂尿素,继续搅拌30min,转入水热釜中,放入200℃烘箱中水热12h,反应结束后自然冷却,过滤,分别用去离子水和乙醇洗涤3次,于60℃烘箱中干燥12h,600℃焙烧2h,得到1.1g CuO/TiO2@Fe3O4催化剂(CuO负载量为1%,TiO2负载量为4%)。
在三口烧瓶中依次加入CuO/TiO2@Fe3O4催化剂(0.1g)、环己酮(1g)、助氧化剂苯甲醛(3g)和溶剂1,2-二氯乙烷(20g),通入30mL/min空气,50℃反应6h。将所得产物经过滤取清液进行气相色谱分析,选择性为93.56%,产率为80.11%。
Claims (6)
1.一种磁性催化剂,其特征在于所述的催化剂由活性组分、助催化剂、活性载体组分组成,其中活性组分为过渡金属氧化物中的一种,活性载体为Fe3O4,助催化剂为TiO2;其中活性组分负载质量为1~3%,助催化剂负载质量为4~10%;所述的过渡金属氧化物为CuO、Co3O4、NiO、CeO2或MnO2中的一种;由以下方法制备,其具体步骤为:
(1) Fe3O4载体的制备:采用高温回流的方式制备具有多孔球状结构的Fe3O4载体,所制得的Fe3O4载体的孔隙率为40~45%,粒径尺寸为300~500nm;其中采用高温回流的方式制备具有多孔球状结构的Fe3O4载体的具体步骤为:称取六水合三氯化铁和聚乙二醇加入到溶剂中,搅拌混合均匀,再加入三水合乙酸钠,继续搅拌,转移至回流装置,高温回流,回流结束后自然冷却,过滤,洗涤,干燥,得到具有多孔球状结构的Fe3O4载体;其中六水合三氯化铁、聚乙二醇、溶剂和三水乙酸钠的质量比为1:(0.07~0.19):(18~30):(0.18~0.3);溶剂为乙二醇、1,2-丙二醇、二乙二醇、丙三醇或1,4-丁二醇中的任一种;回流温度为180~220℃,回流时间为12~36 h;
(2) 磁性催化剂的制备:将Fe3O4载体和分散剂超声分散于溶剂中,将分散液转移至水浴锅中搅拌;将无机钛盐和无机过渡金属盐溶于去离子水中,将金属盐水溶液滴加至水浴搅拌的分散液中,继续搅拌,最后加入沉淀剂,转移至水热釜中高温水热反应,水热结束后冷却,洗涤,干燥,焙烧后得到磁性催化剂。
2.根据权利要求1所述的催化剂,其特征在于:步骤(2)中所述的分散剂为十六烷基三甲基溴化铵、聚环氧乙烷-聚环氧丙烷-聚环氧乙烷三嵌段共聚物或十二烷基苯磺酸钠中的任一种;溶剂为甲醇、乙醇或去离子水中的任一种;无机钛盐为四氯化钛、钛酸钾或钛酸钠中的任一种;无机过渡金属盐为硝酸铜、硝酸钴、硝酸镍、硝酸铈或硝酸锰中的任一种;沉淀剂为氨水、尿素或碳酸氢钠中的任一种。
3.根据权利要求1所述的催化剂,其特征在于:步骤(2)中活性载体Fe3O4、无机钛盐和无机过渡金属盐的质量比为1:(0.2~0.5):(0.05~0.3);活性载体、分散剂、沉淀剂和溶剂的质量比为1:(0.1~0.3):(0.3~0.6):(40~60)。
4.根据权利要求1所述的催化剂,其特征在于:步骤(2)中水浴锅温度为40~60℃;水热釜的反应温度为160~200℃,水热反应时间为12~36h;干燥温度为60~100℃,干燥时间为6~12h;焙烧温度为400~600℃,焙烧时间为2~5h。
5.一种如权利要求1所述的磁性催化剂在催化环酮合成环状内酯的应用。
6.根据权利要求5所述的应用,其具体步骤如下:在三口烧瓶中加入依次加入磁性催化剂、环酮、助氧化剂苯甲醛和溶剂,使用鼓泡法通入空气后开始反应,结束后利用磁性铁棒分离出催化剂,其中环酮、助氧化剂和溶剂的质量比为1:(2~4):(10~30);催化剂用量为所加入环酮质量的5%~20%;环酮为环戊酮、2-甲基环己酮、环己酮、4-甲基环己酮或4-乙基环己酮中的任一种;溶剂为乙腈、乙酸乙酯或1,2-二氯乙烷中的任一种;空气流速为10~40mL/min;反应温度为30~60℃,反应时间为6~12h。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110392661.3A CN113198472B (zh) | 2021-04-13 | 2021-04-13 | 一种磁性催化剂及其制备和应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110392661.3A CN113198472B (zh) | 2021-04-13 | 2021-04-13 | 一种磁性催化剂及其制备和应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113198472A CN113198472A (zh) | 2021-08-03 |
CN113198472B true CN113198472B (zh) | 2023-01-03 |
Family
ID=77026697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110392661.3A Active CN113198472B (zh) | 2021-04-13 | 2021-04-13 | 一种磁性催化剂及其制备和应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113198472B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114392739A (zh) * | 2022-03-25 | 2022-04-26 | 烟台沃泰特新材料科技有限责任公司 | 一种无光催化降解voc的催化剂及制备工艺、制备装置 |
CN115382532B (zh) * | 2022-08-26 | 2023-12-29 | 南京工业大学 | 一种M-TiO2@ZrO2催化剂及其制备和应用 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4970188A (en) * | 1985-06-25 | 1990-11-13 | Friedrich Steinbach | Catalyst for removing nitrogen oxides, carbon monoxide, and/or residual hydrocarbons from exhaust gases |
CN107497449A (zh) * | 2017-09-06 | 2017-12-22 | 淄博天净环保技术有限公司 | 催化氧化元素硫及硫化物的催化剂及其制备方法和应用 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0423586D0 (en) * | 2004-10-22 | 2004-11-24 | United States Borax Inc | Selective oxidation of organic compounds |
CN100560581C (zh) * | 2008-07-11 | 2009-11-18 | 湖南大学 | 一种由环己酮催化氧化制备己内酯的方法 |
WO2011086567A1 (en) * | 2010-01-12 | 2011-07-21 | Council Of Scientific & Industrial Research | Magnetic dye-adsorbent catalyst |
CN102603447B (zh) * | 2012-02-13 | 2014-09-03 | 湖南大学 | 一种制备有机内酯的方法 |
CN104045618B (zh) * | 2014-04-23 | 2016-03-02 | 南京理工大学 | 一种催化氧化环十二酮合成环十二内酯的方法 |
CN105440005A (zh) * | 2014-08-18 | 2016-03-30 | 江苏扬农化工集团有限公司 | MgO/Fe2O3催化环己酮制备ε-己内酯的方法 |
WO2016040327A1 (en) * | 2014-09-08 | 2016-03-17 | The Regents Of The University Of California | Highly active, selective, accessible, and robust zeolitic sn-baeyer-villiger oxidation catalyst |
DE102015005440A1 (de) * | 2015-04-28 | 2016-11-03 | Wolfgang Hölderich | Baeyer Villiger Oxidation in Gegenwart von Nb - Katalysatoren |
CN104874342B (zh) * | 2015-04-28 | 2017-11-28 | 西北民族大学 | 一种含铬污水吸附纳米复合材料及其制备方法 |
CN105233854B (zh) * | 2015-11-02 | 2018-10-30 | 兰州大学 | 一种用于制备ε-己内酯的催化剂及制备方法 |
-
2021
- 2021-04-13 CN CN202110392661.3A patent/CN113198472B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4970188A (en) * | 1985-06-25 | 1990-11-13 | Friedrich Steinbach | Catalyst for removing nitrogen oxides, carbon monoxide, and/or residual hydrocarbons from exhaust gases |
CN107497449A (zh) * | 2017-09-06 | 2017-12-22 | 淄博天净环保技术有限公司 | 催化氧化元素硫及硫化物的催化剂及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
CN113198472A (zh) | 2021-08-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN113198472B (zh) | 一种磁性催化剂及其制备和应用 | |
CN110368928B (zh) | 一种用于苯甲醇氧化合成苯甲醛的催化剂及其制备方法和应用 | |
CN110102350A (zh) | 用于氧化合成2,5-呋喃二甲酸的催化剂及其制备方法和应用 | |
Gu et al. | Efficient transfer hydrogenation of biomass derived furfural and levulinic acid via magnetic zirconium nanoparticles: Experimental and kinetic study | |
CN111377890A (zh) | 由5-羟甲基糠醛生产2,5-呋喃二甲酸的方法 | |
CN109503524A (zh) | 一种催化氧化环烷醇/环烷酮制备内酯的方法 | |
CN107899583A (zh) | 一种用于甲醇合成气制备乙醇的催化剂及其制备方法 | |
CN113198512B (zh) | 氮碳掺杂钴基双金属催化剂、其制备方法及2,5-呋喃二甲酸二甲酯制备方法 | |
Li et al. | Selective aerobic oxidation of glycerol over zirconium phosphate-supported vanadium catalyst | |
CN109926056A (zh) | 一种以碳纳米管为载体的催化剂、制备方法及应用 | |
CN113061122A (zh) | 一种2,5-二羟甲基四氢呋喃的制备方法 | |
CN111992213A (zh) | 用于催化愈创木酚加氢脱氧制备环己醇的核壳型催化剂的制备方法 | |
CN104607221B (zh) | 一种钒磷氧化物及其制备方法 | |
CN115178282A (zh) | 一种由乙醇酸甲酯选择性氧化脱氢制备乙醛酸甲酯的催化剂及其制备和使用方法 | |
CN104525219A (zh) | 一种用于草酸二甲酯加氢制羟基乙酸甲酯的催化剂的制备方法 | |
CN110078601A (zh) | 多金属氧酸盐高效催化对二甲苯制备对甲基苯甲醛的方法 | |
CN106944050B (zh) | 一种合成1,3-丙二醇的催化剂及其制备方法和应用 | |
CN101186601A (zh) | 使用纳米镁基催化剂催化氧化环酮合成内酯化合物的方法 | |
CN107445833B (zh) | 乙醇酸酯氧化合成乙醛酸酯的方法 | |
CN104874386B (zh) | 一种用于丙酮缩合的改性镁铝复合氧化物催化剂及其制备方法和应用 | |
CN109574844A (zh) | 乙醛酸酯的制造方法 | |
CN111974409B (zh) | 一种片状多孔锰掺杂氧化镍催化剂、制备方法及其应用 | |
CN111514906B (zh) | 磁性铂基催化剂及制备方法和应用 | |
Wan et al. | Influence of calcination temperature on the cooperative catalysis of base sites and gold nanoparticles on hydrotalcite-supported gold materials for the base-free oxidative esterification of 1, 3-propanediol with methanol to methyl 3-hydroxypropionate | |
CN111018823B (zh) | 一种环己酮制备ε-己内酯联产甲基丙烯酸的工艺 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |