WO2008119252A1 - Matériau ti-si contenant un métal noble et son procédé de préparation - Google Patents
Matériau ti-si contenant un métal noble et son procédé de préparation Download PDFInfo
- Publication number
- WO2008119252A1 WO2008119252A1 PCT/CN2008/000616 CN2008000616W WO2008119252A1 WO 2008119252 A1 WO2008119252 A1 WO 2008119252A1 CN 2008000616 W CN2008000616 W CN 2008000616W WO 2008119252 A1 WO2008119252 A1 WO 2008119252A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- source
- palladium
- titanium
- titanium silicon
- group
- Prior art date
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- 229910000510 noble metal Inorganic materials 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 40
- 239000000203 mixture Substances 0.000 claims abstract description 44
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000002808 molecular sieve Substances 0.000 claims abstract description 40
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 17
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 11
- 229910052737 gold Inorganic materials 0.000 claims abstract description 7
- 229910052709 silver Inorganic materials 0.000 claims abstract description 5
- 229910052741 iridium Inorganic materials 0.000 claims abstract description 3
- 229910052762 osmium Inorganic materials 0.000 claims abstract description 3
- 229910052702 rhenium Inorganic materials 0.000 claims abstract description 3
- 229910052703 rhodium Inorganic materials 0.000 claims abstract description 3
- 229910052707 ruthenium Inorganic materials 0.000 claims abstract description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 120
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 77
- 229910052763 palladium Inorganic materials 0.000 claims description 64
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical compound [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 claims description 61
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 57
- 239000010936 titanium Substances 0.000 claims description 57
- 238000001179 sorption measurement Methods 0.000 claims description 54
- 229910052719 titanium Inorganic materials 0.000 claims description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 229910052757 nitrogen Inorganic materials 0.000 claims description 39
- -1 polypropylene Polymers 0.000 claims description 36
- 239000002210 silicon-based material Substances 0.000 claims description 36
- 238000002360 preparation method Methods 0.000 claims description 34
- 239000010970 precious metal Substances 0.000 claims description 33
- 239000003513 alkali Substances 0.000 claims description 28
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 239000003223 protective agent Substances 0.000 claims description 25
- 229910052710 silicon Inorganic materials 0.000 claims description 25
- 239000010703 silicon Substances 0.000 claims description 25
- 230000008569 process Effects 0.000 claims description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 125000000217 alkyl group Chemical group 0.000 claims description 18
- 125000004432 carbon atom Chemical group C* 0.000 claims description 18
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 15
- 239000002178 crystalline material Substances 0.000 claims description 14
- OAKJQQAXSVQMHS-UHFFFAOYSA-N hydrazine group Chemical group NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 14
- 239000003638 chemical reducing agent Substances 0.000 claims description 13
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 12
- 239000000047 product Substances 0.000 claims description 12
- GPNDARIEYHPYAY-UHFFFAOYSA-N palladium(ii) nitrate Chemical compound [Pd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O GPNDARIEYHPYAY-UHFFFAOYSA-N 0.000 claims description 11
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000002585 base Substances 0.000 claims description 9
- 239000013078 crystal Substances 0.000 claims description 9
- 238000010335 hydrothermal treatment Methods 0.000 claims description 9
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 claims description 9
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 claims description 9
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims description 8
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 8
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 claims description 8
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 claims description 8
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims description 8
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 7
- QVYARBLCAHCSFJ-UHFFFAOYSA-N butane-1,1-diamine Chemical compound CCCC(N)N QVYARBLCAHCSFJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000706 filtrate Substances 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000002736 nonionic surfactant Substances 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000012279 sodium borohydride Substances 0.000 claims description 6
- 229910000033 sodium borohydride Inorganic materials 0.000 claims description 6
- 239000001509 sodium citrate Substances 0.000 claims description 6
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical group [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 4
- 125000002947 alkylene group Chemical group 0.000 claims description 4
- 150000001412 amines Chemical group 0.000 claims description 4
- 239000003945 anionic surfactant Substances 0.000 claims description 4
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000003093 cationic surfactant Substances 0.000 claims description 4
- 230000001788 irregular Effects 0.000 claims description 4
- 229910003445 palladium oxide Inorganic materials 0.000 claims description 4
- JQPTYAILLJKUCY-UHFFFAOYSA-N palladium(ii) oxide Chemical compound [O-2].[Pd+2] JQPTYAILLJKUCY-UHFFFAOYSA-N 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 4
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 4
- 150000003608 titanium Chemical class 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 229910002651 NO3 Inorganic materials 0.000 claims description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 235000019270 ammonium chloride Nutrition 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- NXJCBFBQEVOTOW-UHFFFAOYSA-L palladium(2+);dihydroxide Chemical compound O[Pd]O NXJCBFBQEVOTOW-UHFFFAOYSA-L 0.000 claims description 3
- JKDRQYIYVJVOPF-FDGPNNRMSA-L palladium(ii) acetylacetonate Chemical compound [Pd+2].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O JKDRQYIYVJVOPF-FDGPNNRMSA-L 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 2
- 239000004202 carbamide Substances 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000003795 desorption Methods 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- LWHYKTAISUZRAD-UHFFFAOYSA-L palladium(2+);carbonate Chemical compound [Pd+2].[O-]C([O-])=O LWHYKTAISUZRAD-UHFFFAOYSA-L 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 2
- 229910004283 SiO 4 Inorganic materials 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 229910004339 Ti-Si Inorganic materials 0.000 abstract 2
- 229910010978 Ti—Si Inorganic materials 0.000 abstract 2
- 238000002159 adsorption--desorption isotherm Methods 0.000 description 28
- 230000000052 comparative effect Effects 0.000 description 23
- 239000000243 solution Substances 0.000 description 19
- 230000005540 biological transmission Effects 0.000 description 17
- 239000003054 catalyst Substances 0.000 description 15
- 238000003917 TEM image Methods 0.000 description 13
- 239000007864 aqueous solution Substances 0.000 description 9
- 239000000377 silicon dioxide Substances 0.000 description 9
- 229910001220 stainless steel Inorganic materials 0.000 description 9
- 239000010935 stainless steel Substances 0.000 description 9
- LPSKDVINWQNWFE-UHFFFAOYSA-M tetrapropylazanium;hydroxide Chemical compound [OH-].CCC[N+](CCC)(CCC)CCC LPSKDVINWQNWFE-UHFFFAOYSA-M 0.000 description 9
- 230000003197 catalytic effect Effects 0.000 description 8
- 239000007769 metal material Substances 0.000 description 7
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 7
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 238000006735 epoxidation reaction Methods 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 239000012298 atmosphere Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000004913 activation Effects 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 3
- BIVUUOPIAYRCAP-UHFFFAOYSA-N aminoazanium;chloride Chemical compound Cl.NN BIVUUOPIAYRCAP-UHFFFAOYSA-N 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229960000789 guanidine hydrochloride Drugs 0.000 description 3
- PJJJBBJSCAKJQF-UHFFFAOYSA-N guanidinium chloride Chemical compound [Cl-].NC(N)=[NH2+] PJJJBBJSCAKJQF-UHFFFAOYSA-N 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- JRTYPQGPARWINR-UHFFFAOYSA-N palladium platinum Chemical compound [Pd].[Pt] JRTYPQGPARWINR-UHFFFAOYSA-N 0.000 description 3
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 3
- 229920000053 polysorbate 80 Polymers 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000010718 Oxidation Activity Effects 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 description 2
- DVARTQFDIMZBAA-UHFFFAOYSA-O ammonium nitrate Chemical compound [NH4+].[O-][N+]([O-])=O DVARTQFDIMZBAA-UHFFFAOYSA-O 0.000 description 2
- 150000001491 aromatic compounds Chemical class 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- QEDCEMKTASAIQH-UHFFFAOYSA-O azanium;platinum;nitrate Chemical compound [NH4+].[Pt].[O-][N+]([O-])=O QEDCEMKTASAIQH-UHFFFAOYSA-O 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 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 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000010944 silver (metal) Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CXRFDZFCGOPDTD-UHFFFAOYSA-M Cetrimide Chemical compound [Br-].CCCCCCCCCCCCCC[N+](C)(C)C CXRFDZFCGOPDTD-UHFFFAOYSA-M 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910018879 Pt—Pd Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- 229910001863 barium hydroxide Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 150000001923 cyclic compounds Chemical class 0.000 description 1
- 150000003997 cyclic ketones Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- XGZNHFPFJRZBBT-UHFFFAOYSA-N ethanol;titanium Chemical compound [Ti].CCO.CCO.CCO.CCO XGZNHFPFJRZBBT-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000005216 hydrothermal crystallization Methods 0.000 description 1
- 230000033444 hydroxylation Effects 0.000 description 1
- 238000005805 hydroxylation reaction Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000010952 in-situ formation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- NTTOTNSKUYCDAV-UHFFFAOYSA-N potassium hydride Chemical compound [KH] NTTOTNSKUYCDAV-UHFFFAOYSA-N 0.000 description 1
- 229910000105 potassium hydride Inorganic materials 0.000 description 1
- HKJYVRJHDIPMQB-UHFFFAOYSA-N propan-1-olate;titanium(4+) Chemical compound CCCO[Ti](OCCC)(OCCC)OCCC HKJYVRJHDIPMQB-UHFFFAOYSA-N 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- URJDFYQNAFUJJQ-UHFFFAOYSA-N tetrakis-decyl silicate Chemical compound CCCCCCCCCCO[Si](OCCCCCCCCCC)(OCCCCCCCCCC)OCCCCCCCCCC URJDFYQNAFUJJQ-UHFFFAOYSA-N 0.000 description 1
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium(IV) ethoxide Substances [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 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
- 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
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
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- B01J23/44—Palladium
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/02—Synthesis of the oxirane ring
- C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
- C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
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- C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
- C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
- C07D301/08—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase
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- C07D305/02—Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms not condensed with other rings
- C07D305/04—Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D305/06—Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring atoms
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- B01J2229/10—After treatment, characterised by the effect to be obtained
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Definitions
- the invention relates to a titanium silicon material and a preparation method thereof, in particular to a titanium metal material containing noble metal and a preparation method thereof.
- Background Art ⁇ , , , , 'J , , sieve.
- TS-1 with MFI structure, TS-2 with MEL structure, Ti-MCM-22 with MWW structure, and TS-48 with larger pore structure have been synthesized.
- the titanium-silicon molecular sieve TS-1 developed by Enichem Company of Italy is a new type of titanium-silicon molecular sieve with excellent catalytic selective oxidation performance by introducing transition metal element titanium into the molecular sieve framework of ZSM-5 structure.
- TS-1 not only has the catalytic oxidation of titanium, but also has the shape-selective effect and excellent stability of ZSM-5 molecular sieve.
- Titanium silicon molecular sieve materials can be used as catalysts to catalyze various types of organic oxidation reactions, such as epoxidation of olefins, partial oxidation of alkanes, oxidation of alcohols, hydroxylation of phenols, and ammoxidation of cyclic ketones. Due to the oxidation of organic matter in TS-1 molecular sieve, non-polluting low-concentration hydrogen peroxide can be used as oxidant, which avoids the complicated process of oxidation process and environmental pollution. It has unparalleled energy saving, economy and environment. It has the advantages of being friendly, and has good reaction selectivity, so it has great industrial application prospects. Titanium silicon molecular sieves, as organic selective oxidation catalysts, are considered to be a milestone in the field of molecular catalysis.
- H 2 O 2 is a recognized green oxidant, its oxidation by-product is only water.
- H 2 0 2 due to the difficulty in storage and transportation of H 2 0 2 aqueous solution, H 2 0 2 is extremely unstable. It will decompose when exposed to heat, light, rough surface, heavy metals and other miscellaneous shields, and it is corrosive. It must be specially used in packaging, storage and transportation. Security measures. Therefore, the application of H 2 0 2 in situ, or the combination of H 2 0 2 production process and downstream process using H 2 0 2 can make more efficient use of this chemical product.
- H 2 0 2 and H 2 can be synthesized directly 02, and to use the original rate of 100%, and further H 2 Synthesis of people want to re-oxidation of the organic material 02 of H 2 0 2 in situ and directly used in order to resolve H 2 0 2 cost and security issues. Since Pt, Pd, Au, etc. are the effective components of H 2 0 2 synthesis of H 2 O 2 , many literature patents have reported that they are supported on titanium silicon materials. H 2 O 2 was formed in situ for the study of selective oxidation of organic compounds. For example, Meiers R. et al. (J.
- the invention aims at the deficiency of the in-situ formation of H 2 O 2 on the titanium silicon material for the selective oxidation reaction of organic substances on the titanium metal material such as Pt, Pd, Au, etc., and provides a titanium metal material containing noble metal and provides a preparation method thereof.
- the noble metal-containing titanium silicon material provided by the present invention is characterized in that the composition of the material is represented by an oxide form of xTi0 2 ⁇ 100SiO 2 ⁇ yEO m ⁇ zE, wherein the value of x is 0.001 ⁇ 50, ( y + z) Is 0.0001 to 20 and y/z ⁇ 5, and E represents one or more precious metals selected from the group consisting of Ru, Rh, Pd, Re, Os, Ir, Pt, Ag, and Au, and m is required to satisfy the E oxidation state.
- the material grain contains a hollow structure, or a concave-convex structure.
- (y+z) value is preferably 0.005 to 20, or 0.001 to 10.0, more preferably 0.005 to 10, most preferably 0.01 to 7, y/
- the z value is preferably ⁇ 3, more preferably ⁇ 2, more preferably ⁇ 1, and most preferably 0.01 to 0.8.
- the noble metal is preferably one or more of Pd, Pt, Ag and Au, more preferably Pd and/or Pt. When the noble metal is two or more, the value of y is each precious metal y The sum of the values, the value of z is the sum of the z values of each noble metal.
- the adsorption amount of benzene measured under the condition of adsorption time of 1 hour is at least 25 mg/g, preferably at least 35 mg/g; adsorption of low temperature nitrogen adsorption, etc. There is a hysteresis loop between the temperature line and the desorption isotherm.
- the shape of the cavity portion is not fixed, and may be various shapes such as a rectangle, a circle, an irregular circle, an irregular polygon, or a combination of one or more of these shapes; A single crystal grain or aggregated grain aggregated by a plurality of crystal grains.
- the material provided by the present invention may have a hollow, or concave-convex structure, or may be partially hollow or concave-convex.
- the hollow crystal grain is favorable for the diffusion of the reactants and the product molecules, the synergistic effect of the noble metal and the titanium silicon molecular sieve is improved, the precious metal dispersibility is good; and the noble metal-containing titanium silicon material provided by the invention, the hollow structure
- the ability to hold carbon deposits is strong.
- the oxidation reaction for example, in the reaction of epoxidation of propylene to produce propylene oxide, the selectivity and catalytic activity and stability of the reaction product are remarkably improved as compared with the prior art (e.g., conventional impregnation loading technique).
- the invention also provides two preparation methods of the above noble metal-containing titanium silicon material.
- One of the preparation methods provided by the present invention is that the titanium silicon molecule, the protective agent, the precious metal source, the reducing agent, the alkali source and the water are first mixed and then transferred to the reaction vessel for hydrothermal treatment, filtering, washing and drying, more specifically, Said the method includes:
- step (2) The mixture obtained in the step (1) is further transferred to a reaction vessel for reaction under hydrothermal treatment, and the product is recovered to obtain the titanium silicon material of the present invention.
- the composition in the step (1) is preferably a titanium silicon molecular sieve.
- the titanium silicon molecular sieve referred to in the step (1) comprises titanium silicon molecular sieves of various types, such as TS-1, TS-2, Ti-BETA, Ti-MCM-22, Ti-. MCM-41 , Ti-ZSM-48 , Ti-ZSM-12 , Ti-MMM-1 , Ti-SBA- 15 , Ti-MSU, Ti-MCM-48, etc., preferably TS-1.
- the protective agent in the step (1) refers to a polymer or a surfactant, wherein the polymer may be polypropylene, polyethylene glycol, polystyrene, polyvinyl chloride, polyethylene, or the like. And derivatives thereof, the surfactants may be anionic surfactants, cationic surfactants, and nonionic surfactants.
- the reducing agent in the above preparation method step (1) may be hydrazine, borohydride, sodium citrate or the like, wherein the hydrazine may be hydrazine hydrate, hydrazine hydrochloride, barium sulphate or the like, and the borohydride may be sodium borohydride or boron. Potassium hydride and the like.
- the noble metal source in the above preparation method step (1) is selected from the inorganic or organic substance of the above noble metal, and may be an oxide, a sulphate, a carbonate, a nitrate, an ammonium nitrate salt, an ammonium chloride salt or a hydroxide. Or other complexes of precious metals, etc.
- the palladium source may be an inorganic palladium source and/or an organic palladium source.
- the inorganic 4 bar source may be palladium oxide, palladium carbonate, palladium chloride, palladium nitrate, palladium nitrate, palladium chloride, palladium hydroxide or other complexes of palladium, and the organic palladium source may be palladium acetate or acetyl. Acetone palladium and the like.
- the above preparation method step (1) is that the alkali source is an inorganic alkali source or an organic alkali source.
- the inorganic alkali source is ammonia water, sodium hydroxide, potassium hydroxide, barium hydroxide or the like;
- the organic alkali source is urea, a quaternary amine compound, a fatty amine compound, an alcohol amine compound or a mixture thereof.
- the quaternary ammonium base compound has the formula (R 1 ) 4 NOH , wherein R 1 is an alkyl group having 1 to 4 carbon atoms, preferably a propyl group.
- the compound is ethylamine, n-butylamine, butanediamine or hexamethylenediamine.
- the amine compound is monoethanolamine, diethanolamine or triethanolamine.
- a protective agent may or may not be added.
- the hydrothermal treatment condition described in the step (2) of the above preparation method is hydrothermal treatment at a temperature of 80 to 200 ° C and autogenous pressure for 2 to 360 hours, and the process of recovering the product is well known to those skilled in the art, and there is no particular Wherein, it usually includes a process of washing, drying, and the like of the crystallized product.
- the invention also provides a second preparation method of the titanium metal material containing noble metal, which comprises the following steps:
- the reducing agent of 10 After the reducing agent of 10, it is hydrothermally treated in a reaction vessel at a temperature of 80 to 200 ° C and autogenous pressure for 2 to 360 hours, and the product is recovered to obtain the titanium silicon material of the present invention.
- the step (2) may be repeated one or more times as necessary.
- the silicon source is silica gel, silica sol or organosilicate, preferably organosilicate;
- the organosilicate has the formula R 4 4 Si0 4 , wherein R 4 is preferably an alkyl group having 1 to 4 carbon atoms, more preferably an ethyl group.
- the titanium source is an inorganic titanium salt or an organic titanate, preferably an organic titanate; and the inorganic titanium salt may be TiCl 4 or Ti (S0). 4 ) 2 or TiOCl 2 ; said organotitanate having the formula Ti (OR 5 ) 4 , wherein R 5 is an alkyl group having 1 to 6 carbon atoms, more preferably having 2 to 4 carbon atoms The alkyl group of the atom.
- the alkali source in the step (1) is a mixture of a quaternary amine base compound or a quaternary amine base compound and a fatty amine compound or an alcohol amine compound.
- the quaternary ammonium base compound has the formula (R 6 ) 4 NOH, and R 6 is an alkyl group having 1 to 4 carbon atoms, preferably a propyl group.
- the protective agent in the step (1) refers to a polymer or a surfactant, wherein the polymer may be polypropylene, polyethylene glycol, polystyrene, polyvinyl chloride, The polyethylene or the like and the derivative thereof may be an anionic surfactant, a cationic surfactant, and a nonionic surfactant.
- the noble metal source of the step (1) is selected from the organic or inorganic substances of the noble metal, and may be an oxide, a halide, a carbonate, a nitrate, an ammonium nitrate salt, Ammonium chloride salt, hydroxide or other complex of noble metal, and the like.
- the palladium source may be an inorganic palladium source and/or an organic palladium source, wherein the inorganic 4 bar source may be palladium oxide, 4 bar carbonic acid, 4 bar chlorination, 4 bar nitric acid, 4 bar ammonium nitrate, palladium chloride chloride.
- the organic palladium source may be palladium acetate, palladium acetylacetonate or the like.
- the reducing agent in the step (1) may be hydroxylamine, hydrazine, borohydride, sodium citrate or the like, wherein the hydrazine may be hydrazine hydrate, hydrazine hydrochloride, barium sulphate or the like.
- the borohydride may be sodium borohydride, potassium borohydride or the like.
- the preparation method provided by the invention has the catalytic oxidation activity and the product selectivity significantly improved compared with the prior art, and has better catalytic activity stability (see the examples).
- the material of the present invention has a hollow or convex-concave structure, it is advantageous for the diffusion of reactants and product molecules, especially larger molecules (such as aromatic compounds) in the catalytic reaction, for aromatic compounds, cyclic compounds, etc. Catalytic oxidation is particularly advantageous.
- Figure 1 is an adsorption-desorption isotherm plot of low temperature nitrogen adsorption of Comparative Example 1 versus sample DB-1.
- Figure 2 is a graph showing the adsorption-desorption isotherm curve of the low temperature nitrogen adsorption of Sample A of Example 1.
- FIG. 3 is an adsorption-desorption isotherm diagram of the low temperature nitrogen adsorption of Sample B of Example 2.
- 4 is an adsorption-desorption isotherm curve of low temperature nitrogen adsorption of sample C of Example 3
- FIG. 5 is an adsorption-desorption isotherm curve of low temperature nitrogen adsorption of sample D of Example 4
- FIG. 6 is a low temperature nitrogen adsorption of sample E of Example 5.
- the adsorption-desorption isotherm curve of FIG. 7 is the adsorption-desorption isotherm curve of the low-temperature nitrogen adsorption of the sample F of Example 6.
- FIG. 8 is the adsorption-desorption isotherm curve of the low-temperature nitrogen adsorption of the sample G of Example 7.
- Figure 9 is an adsorption-desorption isotherm curve of the low temperature nitrogen adsorption of sample H of Example 8.
- Figure 10 is an adsorption-desorption isotherm curve of the low temperature nitrogen adsorption of Sample I of Example 9.
- Figure 11 is an adsorption-desorption isotherm curve of the low temperature nitrogen adsorption of Sample J of Example 10.
- Example 12 is an adsorption-desorption isotherm curve diagram of Example 11 sample K for low temperature nitrogen adsorption.
- Figure 14 is a transmission electron microscope (TEM) photograph of Sample A of Example 1.
- Figure 15 is a transmission electron microscope (TEM) photograph of Sample B of Example 2.
- Figure 16 is a transmission electron microscope (TEM) photograph of Sample C of Example 3.
- Figure 17 is a transmission electron microscope (TEM) photograph of Sample C of Example 4.
- Figure 18 is a transmission electron microscope (TEM) photograph of Sample E of Example 5.
- Figure 19 is a transmission electron microscope (TEM) photograph of Sample F of Example 6.
- Figure 20 is a transmission electron microscope (TEM) photograph of Sample G of Example 7.
- Figure 21 is a transmission electron microscope (TEM) photograph of Sample H of Example 8.
- Figure 22 is a transmission electron microscope (TEM) photograph of Sample I of Example 9.
- Figure 23 is a transmission electron microscope (TEM) photograph of Sample J of Example 10.
- Figure 24 is a transmission electron microscope (TEM) photograph of Sample K of Example 11. detailed description
- the reagents used in the examples were all commercially available chemically pure reagents.
- the comparative examples and the titanium-silicon molecular sieve TS-1 used in the examples were prepared according to the method described in the prior art Zeolites, 1992, Vol. 12, 943; the titanium-silicon molecular sieve Ti-BETA used was according to the prior art J. Prepared by the method described in Catal., 1994, Vol. 145, 151; the titanium silica molecular sieve TS-2 used is prepared according to the method described in the prior art Appl. Catal., 1990, Vol. 58, L1.
- the titanium silica molecular sieve Ti-ZSM-48 used was prepared according to the method described in J. Chem. Soc. Chem.
- the titanium silica molecular sieve Ti-ZSM-12 used was Prepared by the method described in the prior art Zeolites, 1995, Vol. 15, 236.
- the adsorption-desorption isotherm curve of the sample for low temperature nitrogen adsorption was determined by the American Micromeritics ASAP 2405 static nitrogen adsorption apparatus according to the ASTM D4222-98 standard method.
- the transmission electron micrograph (TEM) of the sample was obtained on a Tecnai G 2 F20S-TWIN transmission electron microscope from FEI, Netherlands, with an accelerating voltage of 20 kV.
- the benzene adsorption amount of the sample was measured by a conventional static adsorption method.
- This comparative example illustrates the process of conventionally preparing a supported palladium/titanium silicon molecular sieve catalyst. Take 20 g of titanium silicalite TS-1 and 20 ml of a solution of 0.01 g/ml (as palladium atom) of ammonium nitrate solution, add 20 ml of deionized water, mix well, and seal properly. The temperature is 40 °C. Immerse for 24 hours. Then, it was naturally dried and subjected to reduction activation in a hydrogen atmosphere at 150 ° C for 3 hours to obtain a conventional conventional supported palladium/titanium silicon molecular sieve catalyst DB-1.
- the oxide form Characterized by the oxide form, it can be expressed as 6 ⁇ 0 0 ⁇ 100 SiO 2 ⁇ 0.7 PdO ⁇ 0.3 Pd.
- the adsorption-desorption isotherm curve of the low-temperature nitrogen adsorption has no hysteresis loop (Fig. 1), and it is a solid structure in the transmission electron micrograph, and no hollow or convex-concave structure is observed (Fig. 13).
- titanium silica molecular sieve TS-1 Take 20 g of titanium silica molecular sieve TS-1, a concentration of 0.01 g/ml (as palladium atom) of an ammonium palladium nitrate complex solution, and an appropriate amount of hydrazine hydrate and cetyltridecyl ammonium bromide added to the tetrapropyl group.
- a new titanium metal material A containing precious metals Characterized by the oxide form can be expressed as 4Ti0 2 ⁇ 100SiO 2 ⁇ O.OlPdO ⁇ 0.09Pd, the adsorption-desorption isotherm curve of low temperature nitrogen adsorption has hysteresis loop (Fig. 2), transmission electron micrograph It is shown as a hollow structure ( Figure 14).
- titanium-silicon molecular sieve Ti-BETA 20 g of titanium-silicon molecular sieve Ti-BETA, a palladium chloride solution having a concentration of 0.01 g/ml (as palladium atom), and an appropriate amount of guanidine hydrochloride and polypropylene are added to an aqueous solution of sodium hydroxide (15% by mass).
- titanium silicalite (g): polypropylene (mole): sodium hydroxide (mole): hydrazine hydrochloride (mole): palladium chloride (grams, in palladium): water (mole) 100: 0.9: 1.8: 0.15: 0.1: 4600.
- Titanium silicon material B of precious metal Characterized by the oxide form can be expressed as 8Ti0 2 ⁇ IOOS1O2 ⁇ 0.006PdO ⁇ 0.008Pd, the adsorption-desorption isotherm curve of low temperature nitrogen adsorption has hysteresis loop (Fig. 3), transmission electron micrograph shows It is a hollow structure (Fig. 15).
- the new noble metal-containing titanium silicon material of the present invention is obtained (: characterized by the composition of the oxide can be expressed as 0.008 TiO 2 ⁇ 100 SiO 2 ⁇ O.OlPdO 0.2Pd, the adsorption-desorption isotherm curve of the low-temperature nitrogen adsorption has a hysteresis loop (Fig. 4), and the transmission electron micrograph shows that it is a hollow structure (Fig. 16).
- composition can be expressed as 19Ti0 2 ⁇ 100SiO 2 ⁇ 0.5PdO ⁇ 1.3Pd in the form of oxide.
- the adsorption-desorption isotherm curve of low temperature nitrogen adsorption has a hysteresis loop (Fig. 5), and the transmission electron micrograph shows It is a hollow structure (Fig. 17).
- a new titanium metal material E containing precious metals Characterized by the oxide form can be expressed as 0.1TiO 2 ⁇ IOOS1O2 ⁇ 0.66PdO ⁇ 0.12Pd, the adsorption-desorption isotherm curve of low temperature nitrogen adsorption has a hysteresis loop (Figure 6), transmission electron micrograph shows Out of Hollow structure ( Figure 18).
- a new titanium metal material F containing precious metals Characterized by the oxide form can be expressed as 0.04TiO 2 '100SiO 2 ⁇ 3.6PdO ⁇ l.lPd, the adsorption-desorption isotherm curve of low temperature nitrogen adsorption has a hysteresis loop (Fig. 7), transmission electron microscope The photo shows it as a hollow structure ( Figure 19).
- Tetraethyl orthosilicate, tetraethyl titanate, palladium acetate solution having a concentration of 0.01 g/ml (as palladium atom) and cetyltrimethylammonium bromide were added to tetrapropylammonium hydroxide ( The mass percentage concentration is 13%).
- Tetradecyl orthosilicate, TiCl 4 at a concentration of 0.01 g/ml (as palladium atom)
- composition can be expressed as 12Ti0 2 ⁇ 100SiO 2 ⁇ O.OlPdO ⁇ 6.4Pd in the form of oxide.
- Titanium silicon material I of precious metals Characterized by the oxide form can be expressed as 0.5TiO 2 ⁇ 100SiO 2 ⁇ 0.7PdO ⁇ 1.3Pd, the adsorption-desorption isotherm curve of low temperature nitrogen adsorption has a hysteresis loop (Fig. 10), transmission electron micrograph It is seen as a hollow structure (Fig. 22).
- Characterized by its oxide form can be expressed as 2Ti0 2 ⁇ 100SiO 2 ⁇ 0.6PdO ⁇ 3.3Pd, its adsorption-desorption isotherm curve for low-temperature nitrogen adsorption has hysteresis loop (Fig. 11), transmission electron The microscopic photograph shows that it is a hollow structure (Fig. 23).
- a new titanium silicon material K containing a double precious metal Characterized by the oxide form, it can be expressed as 4Ti0 2 -100SiO 2 -0.3PdO -O.lPtO -0.9Pd -0.7Pt, and the adsorption-desorption isotherm curve of low temperature nitrogen adsorption has a hysteresis loop ( Figure 12 ), a transmission electron micrograph shows that it is a hollow structure (Fig. 24).
- This comparative example illustrates the process of conventionally preparing a supported palladium-platinum/titanium silica molecular sieve catalyst.
- composition of which can be expressed as 6Ti0 2 - 100SiO 2 - 0.8PdO - 0.4PtO ⁇ 0.2Pd ⁇ 0.5Pt.
- the adsorption-desorption isotherm curve of the low-temperature nitrogen adsorption has no hysteresis loop, and no hollow structure is observed in the transmission electron microscope photograph.
- This comparative example illustrates the process of conventionally preparing a supported palladium/titanium silicon molecular sieve catalyst.
- 20 g of titanium silicon molecular sieve obtained according to the preparation method of Example 1 of CN 1 132699C and 20 ml of a solution of 0.01 g/ml (4 bar atom) of ammonium nitrate 4 bar complex were added to 20 ml of deionized water and stirred. After homogenization, properly seal and immerse at 40 °C for 24 hours. Then, it was naturally dried and subjected to reduction activation in a hydrogen atmosphere at 150 ° C for 3 hours to obtain a supported palladium-platinum/titanium silica molecular sieve catalyst DB-3.
- the oxide form Characterized by the oxide form, it can be expressed as 6Ti0 2 ⁇ 100SiO 2 ⁇ 0.9PdO ⁇ 0.1 Pd.
- the adsorption-desorption isotherm curve of the low-temperature nitrogen adsorption has a hysteresis loop, and a hollow structure is observed in the transmission electron microscope photograph.
- This comparative example illustrates the process of conventionally preparing a supported palladium/titanium silicon molecular sieve catalyst.
- the temperature is 40 °C. Dip for 24 hours.
- This example illustrates the effect of the sample of the examples provided by the present invention and the sample prepared in the comparative example for the gas phase epoxidation of propylene to produce propylene oxide in the presence of hydrogen.
- Table 1 and Table 2 show the propylene conversion rate of the reaction for 2 hours and 12 hours, respectively. And PO selective data.
- Table 1 Sample Source Sample No. propylene conversion % PO selectivity %
- Example 1 A 5.24 91.68
- Example 2 B 5.53 92.56
- Example 3 C 4.36 92.14
- Example 4 D 4.73 91.87
- Example 5 E 4.21 91.65
- Example 6 F 5.21 91.45
- Example 11 K 5.45 92.14
- Comparative Example 2 DB-2 2.71 88.52
- Comparative Example 3 DB -3 2.68 89.34 Comparative Example 4 DB-4 1.14 86.65
- Table 3 Sample Source Sample No. Benzene Adsorption Amount, mg/g Radial Length, nm
- Example 1 A 65 10-120
- Example 2 B 48
- Example 3 C 56
- Example 4 D
- Example 5 E
- Example 7 G 55 5-115
- Example 11 K 45 5-90 Comparative Example 2 DB-2 19 - Comparative Example 3 DB-3 34 60-80 Comparative Example 4 DB-4 28 -
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Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
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EP08733849.7A EP2133144B1 (en) | 2007-03-30 | 2008-03-27 | A noble metal-containing ti-si material and the preparing method thereof |
US12/594,008 US8349756B2 (en) | 2007-03-30 | 2008-03-27 | Noble metal-containing titanosilicate material and its preparation method |
JP2010501357A JP5340258B2 (ja) | 2007-03-30 | 2008-03-27 | 貴金属を含有するチタノシリケート材料およびその製造方法 |
AU2008234308A AU2008234308B2 (en) | 2007-03-30 | 2008-03-27 | A noble metal-containing Ti-Si material and the preparing method thereof |
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BRPI0808615-0A BRPI0808615B1 (pt) | 2007-03-30 | 2008-03-27 | Titanosilicate material containing a noble metal and its preparation methods |
ES08733849T ES2813853T3 (es) | 2007-03-30 | 2008-03-27 | Material de Ti-Si que contiene metales nobles y método de preparación del mismo |
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EP2133144A1 (en) | 2009-12-16 |
EP2133144B1 (en) | 2020-08-05 |
US20100105542A1 (en) | 2010-04-29 |
JP5340258B2 (ja) | 2013-11-13 |
TWI370751B (zh) | 2012-08-21 |
KR20090127321A (ko) | 2009-12-10 |
RU2009140032A (ru) | 2011-05-10 |
TW200940167A (en) | 2009-10-01 |
EP2133144A4 (en) | 2010-04-14 |
AU2008234308A1 (en) | 2008-10-09 |
JP2010522689A (ja) | 2010-07-08 |
BRPI0808615A2 (pt) | 2014-08-12 |
ZA200906473B (en) | 2012-01-25 |
ES2813853T3 (es) | 2021-03-25 |
KR101466631B1 (ko) | 2014-11-28 |
US8349756B2 (en) | 2013-01-08 |
CN101274765B (zh) | 2011-11-30 |
AU2008234308B2 (en) | 2012-09-06 |
CN101274765A (zh) | 2008-10-01 |
RU2459661C2 (ru) | 2012-08-27 |
BRPI0808615B1 (pt) | 2017-06-27 |
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