CN113278098B - 一种复合载体负载的聚烯烃催化剂及其制备方法和应用 - Google Patents
一种复合载体负载的聚烯烃催化剂及其制备方法和应用 Download PDFInfo
- Publication number
- CN113278098B CN113278098B CN202110635467.3A CN202110635467A CN113278098B CN 113278098 B CN113278098 B CN 113278098B CN 202110635467 A CN202110635467 A CN 202110635467A CN 113278098 B CN113278098 B CN 113278098B
- Authority
- CN
- China
- Prior art keywords
- catalyst
- carrier
- silica gel
- reaction
- prepare
- 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 66
- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 25
- 239000000741 silica gel Substances 0.000 claims abstract description 33
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 31
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 31
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 150000004696 coordination complex Chemical class 0.000 claims abstract description 21
- 239000002608 ionic liquid Substances 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000010355 oscillation Effects 0.000 claims abstract description 7
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 6
- -1 transition metal salt Chemical class 0.000 claims abstract description 6
- 150000003934 aromatic aldehydes Chemical class 0.000 claims abstract description 5
- 150000004982 aromatic amines Chemical class 0.000 claims abstract description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004327 boric acid Substances 0.000 claims abstract description 5
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 23
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- SMQUZDBALVYZAC-UHFFFAOYSA-N salicylaldehyde Chemical group OC1=CC=CC=C1C=O SMQUZDBALVYZAC-UHFFFAOYSA-N 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 239000004005 microsphere Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- BHAAPTBBJKJZER-UHFFFAOYSA-N p-anisidine Chemical group COC1=CC=C(N)C=C1 BHAAPTBBJKJZER-UHFFFAOYSA-N 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 235000019441 ethanol Nutrition 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- HDYRYUINDGQKMC-UHFFFAOYSA-M acetyloxyaluminum;dihydrate Chemical compound O.O.CC(=O)O[Al] HDYRYUINDGQKMC-UHFFFAOYSA-M 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 229940009827 aluminum acetate Drugs 0.000 claims description 4
- WYYQVWLEPYFFLP-UHFFFAOYSA-K chromium(3+);triacetate Chemical group [Cr+3].CC([O-])=O.CC([O-])=O.CC([O-])=O WYYQVWLEPYFFLP-UHFFFAOYSA-K 0.000 claims description 4
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000009832 plasma treatment Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 125000002091 cationic group Chemical group 0.000 claims description 2
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 229920001519 homopolymer Polymers 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- SPOZROZMAXEVMC-UHFFFAOYSA-N 1-butyl-2-methyl-3h-pyrazole Chemical class CCCCN1C=CCN1C SPOZROZMAXEVMC-UHFFFAOYSA-N 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 15
- 239000002184 metal Substances 0.000 abstract description 15
- 150000001336 alkenes Chemical class 0.000 abstract description 14
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 abstract description 14
- 239000000178 monomer Substances 0.000 abstract description 2
- 238000003980 solgel method Methods 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229960001866 silicon dioxide Drugs 0.000 description 25
- 230000003197 catalytic effect Effects 0.000 description 10
- 230000009477 glass transition Effects 0.000 description 9
- 239000002245 particle Substances 0.000 description 9
- 230000037048 polymerization activity Effects 0.000 description 9
- 239000011651 chromium Substances 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 4
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 4
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 4
- RRIQVLZDOZPJTH-UHFFFAOYSA-N 3,5-di-tert-butyl-2-hydroxybenzaldehyde Chemical compound CC(C)(C)C1=CC(C=O)=C(O)C(C(C)(C)C)=C1 RRIQVLZDOZPJTH-UHFFFAOYSA-N 0.000 description 3
- FUGKCSRLAQKUHG-UHFFFAOYSA-N 5-chloro-2-hydroxybenzaldehyde Chemical compound OC1=CC=C(Cl)C=C1C=O FUGKCSRLAQKUHG-UHFFFAOYSA-N 0.000 description 3
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 229940078494 nickel acetate Drugs 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000002685 polymerization catalyst Substances 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- QSNSCYSYFYORTR-UHFFFAOYSA-N 4-chloroaniline Chemical compound NC1=CC=C(Cl)C=C1 QSNSCYSYFYORTR-UHFFFAOYSA-N 0.000 description 2
- QUBJNCAIXDRGRM-UHFFFAOYSA-N CCCCN1N(C)CC=C1.Cl Chemical compound CCCCN1N(C)CC=C1.Cl QUBJNCAIXDRGRM-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- PHFQLYPOURZARY-UHFFFAOYSA-N chromium trinitrate Chemical compound [Cr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PHFQLYPOURZARY-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002815 homogeneous catalyst Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- JJVNINGBHGBWJH-UHFFFAOYSA-N ortho-vanillin Chemical compound COC1=CC=CC(C=O)=C1O JJVNINGBHGBWJH-UHFFFAOYSA-N 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- IHFRMUGEILMHNU-UHFFFAOYSA-N 2-hydroxy-5-nitrobenzaldehyde Chemical compound OC1=CC=C([N+]([O-])=O)C=C1C=O IHFRMUGEILMHNU-UHFFFAOYSA-N 0.000 description 1
- TYMLOMAKGOJONV-UHFFFAOYSA-N 4-nitroaniline Chemical group NC1=CC=C([N+]([O-])=O)C=C1 TYMLOMAKGOJONV-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910021555 Chromium Chloride Inorganic materials 0.000 description 1
- 229910021380 Manganese Chloride Inorganic materials 0.000 description 1
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 1
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- QSWDMMVNRMROPK-UHFFFAOYSA-K chromium(3+) trichloride Chemical compound [Cl-].[Cl-].[Cl-].[Cr+3] QSWDMMVNRMROPK-UHFFFAOYSA-K 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- LRCFXGAMWKDGLA-UHFFFAOYSA-N dioxosilane;hydrate Chemical compound O.O=[Si]=O LRCFXGAMWKDGLA-UHFFFAOYSA-N 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229940071125 manganese acetate Drugs 0.000 description 1
- 229940099607 manganese chloride Drugs 0.000 description 1
- 235000002867 manganese chloride Nutrition 0.000 description 1
- 239000011565 manganese chloride Substances 0.000 description 1
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 description 1
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 1
- CPOFMOWDMVWCLF-UHFFFAOYSA-N methyl(oxo)alumane Chemical compound C[Al]=O CPOFMOWDMVWCLF-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000003921 particle size analysis Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229960004029 silicic acid Drugs 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F120/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F120/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F120/10—Esters
- C08F120/12—Esters of monohydric alcohols or phenols
- C08F120/14—Methyl esters, e.g. methyl (meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/02—Carriers therefor
- C08F4/025—Metal oxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/06—Metallic compounds other than hydrides and other than metallo-organic compounds; Boron halide or aluminium halide complexes with organic compounds containing oxygen
- C08F4/12—Metallic compounds other than hydrides and other than metallo-organic compounds; Boron halide or aluminium halide complexes with organic compounds containing oxygen of boron, aluminium, gallium, indium, thallium or rare earths
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/06—Metallic compounds other than hydrides and other than metallo-organic compounds; Boron halide or aluminium halide complexes with organic compounds containing oxygen
- C08F4/22—Metallic compounds other than hydrides and other than metallo-organic compounds; Boron halide or aluminium halide complexes with organic compounds containing oxygen of chromium, molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/06—Metallic compounds other than hydrides and other than metallo-organic compounds; Boron halide or aluminium halide complexes with organic compounds containing oxygen
- C08F4/26—Metallic compounds other than hydrides and other than metallo-organic compounds; Boron halide or aluminium halide complexes with organic compounds containing oxygen of manganese, iron group metals or platinum group metals
Abstract
本发明公开了一种复合载体负载的聚烯烃催化剂的制备方法,具体步骤如下:(1)通过溶胶‑凝胶法结合双模板剂法制备出硅胶载体;(2)将过渡金属盐、芳香醛和芳香胺加入至无水乙醇中一起反应制备金属配合物;(3)将所述硅胶载体,所述金属配合物、助催化剂和离子液体加入到无水乙醇中并进行超声振荡,过滤后干燥所得固体即可制得所述复合载体负载的聚烯烃催化剂。本发明还公开了用于烯烃聚合的金属催化剂,所述催化剂以硅胶为载体,以配合物为活性金属,以金属铝、硼酸和离子液体为助催化剂。本发明所制备的催化剂能有效地催化极性单体甲基丙烯酸甲酯(MMΑ)聚合制备聚甲基丙烯酸甲酯(PMMA)。
Description
技术领域
本发明属于高分子技术领域,尤其涉及一种复合载体负载的聚烯烃催化剂及其制备方法和应用。
背景技术
聚烯烃由于具有原料丰富、价格低廉、容易加工成型及综合性能优良等优点,已经成为产量最大和应用最广泛的高分子材料之一。自从Ziegler-Natta催化剂被发现并实现工业化以来,烯烃聚合催化剂的研究和开发就成为了聚烯烃工业的关键核心技术之一,甚至可以说催化剂技术是聚烯烃工业的命脉(Gibson V C,Spitzmesser S K.Advances innon-metallocene olefin polymerization catalysis[J].Chemical Review,2003,103,283-316.)。
目前,越来越多的新型高效的均相/非均相烯烃聚合催化剂被开发与利用,其中,均相催化剂虽具有反应活性高、聚合产物相对分子质量分布较窄及组成均匀等优点,但通常会存在催化剂分离困难,聚合物和催化剂黏釜,所制备聚合物的颗粒形态不佳且不易调控等问题。因此,为了能有效改善均相催化剂所存在的问题,尤其是为了满足工业流化床的要求,通常需要将活性金属催化剂负载在载体上。金属催化剂负载后能将金属活性中心固定在载体上不仅提高了催化剂的稳定性,还可以减少甲基铝氧烷的用量,进一步提高了所得到的聚合物的分子量,最终可得到形态规整、表观密度高的聚烯烃粉料(管炳伟.聚烯烃单活性中心催化剂的研究及应用进展.石油化工,2020,49(7),708-713.)。然而,金属催化剂负载后会降低催化剂的活性。因此,如何选择合适的载体来负载活性金属催化剂从而制备出负载的聚烯烃催化剂是聚烯烃领域具有挑战的问题之一。
发明内容
本发明的目的在于提供一种复合载体负载的聚烯烃催化剂及其制备方法和应用。
为了达成上述目的,本发明的解决方案是:
一种复合载体负载的聚烯烃催化剂的制备方法,其特征在于,具体包括如下步骤:
(1)制备硅胶载体:将炭微球加入到酸溶液中制得含炭微球的酸溶液,然后缓慢加入有机硅酸酯后再加入硅酸钠水溶液制得硅源溶液;往硅源溶液中加入PVP模板剂并搅拌均匀,然后经过微波反应制得硅胶凝胶并干燥制成粉末;将所得粉末进行低温等离子处理脱除模板剂即可制备得到所述硅胶载体;
(2)制备金属配合物:将过渡金属盐、芳香醛、芳香胺加入至无水乙醇中回流反应,冷却后过滤,将所得固体进行重结晶,过滤后洗涤并干燥所得固体即可制得所述金属配合物;
(3)制备负载复合催化剂:将步骤(1)中制得的硅胶载体,步骤(2)中制备的金属配合物、助催化剂和离子液体组成的溶液进行超声振荡,过滤后干燥所得固体即可制得所述复合载体负载的聚烯烃催化剂。
进一步地,步骤(2)中所述的过渡金属盐选自醋酸铬,硝酸铬,氯化铬,醋酸锰,硝酸锰,氯化锰,醋酸镍,硝酸镍或氯化镍中的一种。
进一步地,步骤(3)中所述的助催化剂由醋酸铝和硼酸所组成。
进一步地,步骤(3)中所述超声振荡的温度为30-50℃,超声振荡的时间为15-30min。
进一步地,步骤(3)中所述的离子液体为阳离子型离子液体。
进一步地,步骤(2)中所述的芳香醛为水杨醛、邻香兰素、5-氯水杨醛或3,5-二叔丁基水杨醛或5-硝基水杨醛中的一种。
进一步地,步骤(2)中所述的芳香胺为对甲氧基苯胺、对甲基苯胺或对氯苯胺中的一种。
所述复合载体负载的聚烯烃催化剂的制备方法所制备的催化剂,其特征在于,所述催化剂以硅胶为载体,以金属配合物为活性金属,以离子液体、醋酸铝和硼酸为助催化剂。
前述的制备方法制备得到的复合载体负载的聚烯烃催化剂或由前述复合载体负载的聚烯烃催化剂在甲基丙烯酸甲酯聚合中的应用。
相对于现有的方法,本发明的原理和增益效果如下:
1.本发明制备复合载体负载的烯烃聚合催化剂的方法是通过使用溶胶-凝胶法结合双模板剂制备出硅胶载体,其中,所选的炭微球为硬模板剂通过调节所使用的炭微球的粒径可调控所合成的硅胶载体的孔径大小,而所选的软模板剂PVP可调节所合成的硅胶载体的粒径大小和形貌,通过双模板剂法可制备出具有更大的比表面积和粒径更大的多孔硅胶载体颗粒。
2.本发明所制备的催化剂中离子液体和硅胶可形成复合载体,一方面是利用离子液体的官能团与硅胶内孔道表面的活泼基团化学键合的方法,可以制得离子液体更为稳定、不易流失且不会破坏硅胶内孔道结构的复合载体,另一方面被负载的离子液体以其对金属配合物溶解度大和化学性能稳定的特性,可以进一步固定金属配合物催化活性组分形成新的复合催化剂体系,从而进一步提高金属配合物的催化活性。
3.本发明所制备的催化剂可有效地催化极性单体甲基丙烯酸甲酯(MMΑ)聚合制备聚甲基丙烯酸甲酯(PMMA)。
具体实施方式
下面进一步结合实施例以详细说明本发明。同样应理解,以下实施例只用于对本发明进行进一步说明,不能理解为对本发明保护范围的限制,示例中具体的质量、反应时间和温度、工艺参数等也仅是合适范围中的一个示例,本领域的技术人员根据本发明的上述内容做出的一些非本质的改进和调整均属于本发明的保护范围。
所用试剂如无特别指出均为商品化试剂,使用前均未进行进一步纯化。比表面积和孔容测试使用的是贝士德仪器公司的3H-2000PS2型比表面孔径检测仪;粒径测试所使用的是贝克曼库尔特LS 13 320 XR激光衍射粒度分析仪;ICP-OES测试使用的是德国耶拿公司的ICP-OES PlasmaQuant 9100电感耦合等离子体光谱仪;PMMA的分子量测试采用Waters公司的Water ultrastyragel凝胶色谱仪。
实施例1:
(1)硅胶载体的制备步骤如下:将50.0g炭微球(粒径范围10-40μm)加入到2L摩尔浓度为1mol/L的盐酸溶液中搅拌均匀制得含炭微球的盐酸溶液;搅拌下将12.5g正硅酸乙酯缓慢加入所述含炭微球的盐酸溶液中并继续搅拌,然后加入250g质量浓度为40%的硅酸钠水溶液制得硅源溶液;往硅源溶液中加入50g模板剂PVP(聚乙烯吡咯烷酮,K12)并搅拌均匀制得水合硅凝胶,然后将所得凝胶转移到微波反应罐中进行微波加热老化,微波功率为300W,在温度90℃的条件下微波反应6h;将所得产物冷却后过滤,所得固体用乙醇/水洗涤至中性(用硝酸银溶液检验至无氯离子)后烘干,将烘干的固体制成粉末后移入介质阻挡放电(DBD)装置中进行低温等离子处理脱除模板剂,在氧气氛中,温度200℃,电压220V和电流4.5A条件下处理6h,自然冷却至室温即可制得所述硅胶载体。对所制备的硅胶载体进行比表面积和孔容测试,结果显示比表面积为496cm2/g,孔容为1.87ml/g;对所制备的硅胶载体的进行粒径分析测试,结果显示平均粒径为109.8μm;
(2)金属配合物的制备步骤如下:在氮气保护下,将4.58g乙酸铬、2.44g水杨醛和3.69g对甲氧基苯胺加入烧瓶中,然后加入50ml无水乙醇加热回流反应6h,冷却过滤得相应的固体,用15ml甲苯和正己烷体积比为10:1的混合溶剂重结晶,过滤后用5ml无水乙醚洗涤(洗3次)所得固体,干燥所得固体即可制备得到所述金属铬配合物;
(3)负载复合催化剂的制备步骤如下:将9.17g硅胶载体和0.8g金属铬配合物、0.01g碱式醋酸铝(由1%硼酸稳定)和0.02g氯化1-丁基-2-甲基吡唑加入到50ml无水乙醇中并在50℃超声振荡15min,过滤后将所得固体在110℃的真空干燥箱中干燥12小时即可制得所述复合载体负载的聚烯烃催化剂,将所得催化剂记为Cr/Al-B/IL。对所制备催化剂进行ICP-OES检测,考察催化剂上所负载的活性金属组分,检测结果如下:使用超声浸渍法制备所得催化剂中金属Cr的负载量为4.02%,金属Al的负载量为10.16%。
催化烯烃聚合反应步骤如下:
将1L不锈钢聚合釜用高纯氮气置换不少于三次,然后向聚合釜中加入0.1g上述步骤中制得的用于烯烃聚合催化剂Cr/Al-B/IL,注入20ml甲苯,开启搅拌后升高体系温度至70℃,注入3.75ml甲基丙烯酸甲酯,调整反应体系压力为1.2MPa,保持反应体系温度和压力恒定,维持聚合反应1小时后降温,将反应液倒入50ml质量浓度为10%酸化乙醇溶液(盐酸/乙醇=1/10)中终止反应,再加入20ml质量浓度为3%的稀盐酸溶液使均聚物析出,过滤后依次用25ml去离子水和25ml无水乙醇洗涤所得聚合产物,最后将聚合产物放置于真空干燥箱内60℃烘干至恒重得到聚甲基丙烯酸甲酯(PMMA);对所得PMMA进行表征,具体条件如下:PMMA的DSC在SHIMADZU DSC-50上测得,升温速度20℃/min;PMMA的分子量在Waters公司的Water ultrastyragel凝胶色谱仪测得,溶剂为氯仿,温度40℃,流速1.0mL min。反应结果为:聚合活性为93.02(gPMMA:gcat-1h-1);所得PMMA的分子量为4.91(105g/mol);所得PMMA的玻璃化转变温度Tg为115℃。
实施例2:
硅胶载体的制备同实施例1中的步骤(1),金属配合物的制备参照实施例1中的步骤(2),不同之处在于将乙酸铬换为乙酸镍,乙酸镍的用量为3.53g,其它条件相同;负载复合催化剂的制备同实施例1的中的步骤(3);将所得催化剂记为Ni/Al-B/IL。
催化烯烃聚合反应的条件均同实施例1,反应结果为:聚合活性为28.17(gPMMA:gcat-1h-1);所得PMMA的分子量为1.26(105g/mol);所得PMMA的玻璃化转变温度Tg为101℃。
实施例3:
硅胶载体的制备同实施例1中的步骤(1),金属配合物的制备参照实施例1中的步骤(2),不同之处在于将水杨醛换为邻香兰素,邻香兰素的用量为3.04g,其它条件相同;负载复合催化剂的制备同实施例1中的步骤(3);将所得催化剂用于催化烯烃聚合反应的条件均同实施例1,反应结果为:聚合活性为71.26(gPMMA:gcat-1h-1);所得PMMA的分子量为3.75(105g/mol);所得PMMA的玻璃化转变温度Tg为106℃。
实施例4:
硅胶载体的制备同实施例1中的步骤(1),金属配合物的制备参照实施例1中的步骤(2),不同之处在于将水杨醛换为5-氯水杨醛,5-氯水杨醛的用量为3.12g,其它条件相同;负载复合催化剂的制备同实施例1中的步骤(3);将所得催化剂用于催化烯烃聚合反应的条件均同实施例1,反应结果为:聚合活性为68.54(gPMMA:gcat-1h-1);所得PMMA的分子量为3.40(105g/mol);所得PMMA的玻璃化转变温度Tg为103℃。
实施例5:
硅胶载体的制备同实施例1中的步骤(1),金属配合物的制备参照实施例1中的步骤(2),不同之处在于将水杨醛换为3,5-二叔丁基水杨醛,3,5-二叔丁基水杨醛的用量为4.68g,其它条件相同;负载复合催化剂的制备同实施例1中的步骤(3);将所得催化剂用于催化烯烃聚合反应的条件均同实施例1,反应结果为:聚合活性为86.17(gPMMA:gcat-1h-1);所得PMMA的分子量为4.95(105g/mol);所得PMMA的玻璃化转变温度Tg为114℃。
实施例6:
硅胶载体的制备同实施例1中的步骤(1),金属配合物的制备参照实施例1中的步骤(2),不同之处在于将对甲氧基苯胺换为对硝基苯胺,对硝基苯胺的用量为4.14g,其它条件相同;负载复合催化剂的制备同实施例1中的步骤(3);将所得催化剂用于催化烯烃聚合反应的条件均同实施例1,反应结果为:聚合活性为53.64(gPMMA:gcat-1h-1);所得PMMA的分子量为2.89(105g/mol);所得PMMA的玻璃化转变温度Tg为98℃。
实施例7:
硅胶载体的制备同实施例1中的步骤(1),金属配合物的制备参照实施例1中的步骤(2),不同之处在于将对甲氧基苯胺换为对甲基苯胺,对甲基苯胺的用量为3.21g,其它条件相同;负载复合催化剂的制备同实施例1中的步骤(3);将所得催化剂用于催化烯烃聚合反应的条件均同实施例1,反应结果为:聚合活性为81.03(gPMMA:gcat-1h-1);所得PMMA的分子量为4.84(105g/mol);所得PMMA的玻璃化转变温度Tg为112℃。
实施例8:
硅胶载体的制备同实施例1中的步骤(1),金属配合物的制备参照实施例1中的步骤(2),不同之处在于将对甲氧基苯胺换为对氯苯胺,对氯苯胺的用量为3.82g,其它条件相同;负载复合催化剂的制备同实施例1中的步骤(3);将所得催化剂用于催化烯烃聚合反应的条件均同实施例1,反应结果为:聚合活性为63.42(gPMMA:gcat-1h-1);所得PMMA的分子量为3.69(105g/mol);所得PMMA的玻璃化转变温度Tg为99℃。
对比例1
硅胶载体的制备同实施例1中的步骤(1),金属配合物的制备同实施例1中的步骤(2),负载复合催化剂的制备参照实施例1中的步骤(3),不同之处在于将氯化1-丁基-2-甲基吡唑的用量为0g,其它条件相同;将所得催化剂记为Cr/Al-B。对所制备催化剂进行ICP-OES检测,考察催化剂上所负载的活性金属组分,检测结果如下:使用超声浸渍法制备所得催化剂中金属Cr的负载量为3.31%,金属Al的负载量为7.29%。
将所得催化剂用于催化烯烃聚合反应的条件均同实施例1,反应结果为:聚合活性为31.57(gPMMA:gcat-1h-1);所得PMMA的分子量为2.81(105g/mol);所得PMMA的玻璃化转变温度Tg为94℃。
Claims (3)
1.一种复合载体负载的聚烯烃催化剂的制备方法,其特征在于,所述聚烯烃为聚甲基丙烯酸甲酯,所述催化剂的制备方法具体包括如下步骤:
(1)制备硅胶载体:将炭微球加入到酸溶液中制得含炭微球的酸溶液,然后缓慢加入有 机硅酸酯后再加入硅酸钠水溶液制得硅源溶液;往硅源溶液中加入PVP模板剂并搅拌均匀, 然后经过微波反应制得硅胶凝胶并干燥制成粉末;将所得粉末进行低温等离子处理脱除模 板剂即可制备得到所述硅胶载体;
(2)制备金属配合物:将过渡金属盐、芳香醛、芳香胺加入至无水乙醇中回流反应,冷却后过滤,将所得固体进行重结晶,过滤后洗涤并干燥所得固体即可制得所述金属配合物;其中,所述过渡金属盐为醋酸铬;所述芳香醛为水杨醛;所述芳香胺为对甲氧基苯胺;
(3)制备负载复合催化剂:将步骤(1)中制得的硅胶载体,步骤(2)中制备的金属配合物、助催化剂和离子液体组成的溶液进行超声振荡,过滤后干燥所得固体即可制得所述复合载体负载的聚烯烃催化剂;其中,所述超声振荡的温度为30-50℃,超声振荡的时间为15-30min;所述的离子液体为阳离子型离子液体氯化1-丁基-2-甲基吡唑。
2.根据权利要求1所述的复合载体负载的聚烯烃催化剂的制备方法,其特征在于:步骤(3)中所述的助催化剂由醋酸铝和硼酸所组成。
3.根据权利要求1所述的制备方法制备得到的复合载体负载的聚烯烃催化剂在甲基丙烯酸甲酯聚合中的应用;其特征在于,具体步骤如下:将1L不锈钢聚合釜用高纯氮气置换不少于三次,然后向聚合釜中加入0 .1g权利要求1中所述的复合载体负载的聚烯烃催化剂,注入20ml甲苯,开启搅拌后升高体系温度至70℃,注入3 .75ml甲基丙烯酸甲酯,调整反应体系压力为1.2MPa,保持反应体系温度和压力恒定,维持聚合反应1小时后降温,将反应液倒入50ml质量浓度为10%酸化乙醇溶液(盐酸/乙醇=1/10)中终止反应,再加入20ml质量浓度为3%的稀盐酸溶液使均聚物析出,过滤后依次用25ml去离子水和25ml无水乙醇洗涤所得聚合产物,最后将聚合产物放置于真空干燥箱内60℃烘干至恒重得到聚甲基丙烯酸甲酯(PMMA)。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110635467.3A CN113278098B (zh) | 2021-06-08 | 2021-06-08 | 一种复合载体负载的聚烯烃催化剂及其制备方法和应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110635467.3A CN113278098B (zh) | 2021-06-08 | 2021-06-08 | 一种复合载体负载的聚烯烃催化剂及其制备方法和应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113278098A CN113278098A (zh) | 2021-08-20 |
CN113278098B true CN113278098B (zh) | 2023-03-14 |
Family
ID=77283702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110635467.3A Active CN113278098B (zh) | 2021-06-08 | 2021-06-08 | 一种复合载体负载的聚烯烃催化剂及其制备方法和应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113278098B (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997048736A1 (en) * | 1996-06-17 | 1997-12-24 | Exxon Chemical Patents Inc. | Supported late transition metal catalyst systems |
WO2003064322A1 (en) * | 2002-01-29 | 2003-08-07 | Imperial Chemical Industries Plc | Silica materials with meso- and macropores |
CN101896508A (zh) * | 2007-10-26 | 2010-11-24 | Pq硅石英国有限公司 | 催化剂前驱体颗粒及其制备方法和用途 |
CN105964301A (zh) * | 2016-05-06 | 2016-09-28 | 万华化学集团股份有限公司 | 一种水杨醛亚胺席夫碱金属配合物催化剂及其制备方法和应用 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101271055B1 (ko) * | 2008-03-28 | 2013-06-04 | 에스케이종합화학 주식회사 | 메탈로센 담지촉매 조성물 및 이를 이용한 폴리올레핀의제조방법 |
US8993775B2 (en) * | 2010-07-05 | 2015-03-31 | Petroleo Brasileiro S.A.—Petrobras | Chromium and nickel catalysts for oligomerization reactions and process for obtaining alpha-olefins using said catalysts |
-
2021
- 2021-06-08 CN CN202110635467.3A patent/CN113278098B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997048736A1 (en) * | 1996-06-17 | 1997-12-24 | Exxon Chemical Patents Inc. | Supported late transition metal catalyst systems |
WO2003064322A1 (en) * | 2002-01-29 | 2003-08-07 | Imperial Chemical Industries Plc | Silica materials with meso- and macropores |
CN101896508A (zh) * | 2007-10-26 | 2010-11-24 | Pq硅石英国有限公司 | 催化剂前驱体颗粒及其制备方法和用途 |
CN105964301A (zh) * | 2016-05-06 | 2016-09-28 | 万华化学集团股份有限公司 | 一种水杨醛亚胺席夫碱金属配合物催化剂及其制备方法和应用 |
Non-Patent Citations (2)
Title |
---|
固载化离子液体的制备及其在催化加氢反应中的应用研究进展;徐冰莹等;《化工进展》;20170905;第36卷(第09期);第3465-3474页 * |
新型水杨醛-吡咯亚胺配合物对乙烯聚合催化研究;侯一凡;《中国优秀硕士学位论文全文数据库 工程科技I辑》;20190915(第09期);第B016-195页 * |
Also Published As
Publication number | Publication date |
---|---|
CN113278098A (zh) | 2021-08-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103657726B (zh) | 二氧化硅微球固载纳米金属化合物催化剂制备方法与应用 | |
CN111087500B (zh) | 一种铬钒双金属催化剂及其催化合成高密度聚乙烯的用途 | |
CN1214344A (zh) | 一种适用于气相法乙烯聚合工艺的负载型催化剂及其制备方法 | |
CN103159875B (zh) | 铬系聚乙烯催化剂 | |
CN112125810A (zh) | 固体超强酸催化赖氨酸脱羧制备戊二胺的方法 | |
CN113278098B (zh) | 一种复合载体负载的聚烯烃催化剂及其制备方法和应用 | |
CN111659392A (zh) | 一种由氧化钨-金属表面等离子共振激元-铬酸钆组成的桥式异质催化剂的制备及应用 | |
CN111659324B (zh) | 臭氧催化体系复合型气凝胶及其制备方法和应用 | |
CN113278097A (zh) | 一种硅胶负载茂金属催化剂及其制备方法与应用 | |
CN111921543B (zh) | 一种高效乙炔氢氯化反应触媒的制备方法及用途 | |
CN113694921A (zh) | 纳米金刚石/石墨烯复合载体负载原子级分散铱团簇催化剂及其制备方法和应用 | |
CN113277523B (zh) | 一种用于烯烃聚合催化剂的硅胶载体的制备方法 | |
CN102453155A (zh) | 用于高密度聚乙烯制备的低毒高活性催化剂及其制备方法 | |
CN113667046A (zh) | 一种制备聚烯烃的方法 | |
CN103159874B (zh) | 乙烯聚合用铬系催化剂的制备方法 | |
CN1117620C (zh) | 甲醇羰基化反应铑锂双金属多相催化剂及其制法 | |
CN113248639A (zh) | 一种硅胶负载聚烯烃催化剂及其制备方法与应用 | |
CN111514879B (zh) | 一种铟基钒氧化物催化剂的合成方法及其应用 | |
CN109384865A (zh) | 复合还原铬钒催化剂及其制备方法 | |
CN113354761B (zh) | 一种使用茂金属催化剂制备极性聚合物的方法 | |
CN108976322A (zh) | 改性铬系聚乙烯催化剂及其制备方法 | |
Liu et al. | Surface physico‐chemical state of CO‐prereduced Phillips CrOx/SiO2 catalyst and unique polymerization behavior in the presence of Al‐alkyl cocatalyst | |
CN110964141B (zh) | 一种负载铬锆钼三金属催化剂及其制备方法和应用 | |
CN1175590A (zh) | 乙烯聚合负载型含铬催化剂及制备方法 | |
CN111057170B (zh) | 一种负载铬钕钴三金属催化剂及其制备方法和应用 |
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 | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A composite carrier supported polyolefin catalyst and its preparation method and application Granted publication date: 20230314 Pledgee: Bank of Guilin Co.,Ltd. Qinzhou branch Pledgor: Qinzhou Dongchen Material Technology Co.,Ltd. Registration number: Y2024980001274 |