CN107602736B - 一种通用的α-烯烃聚合工业催化剂及其应用 - Google Patents
一种通用的α-烯烃聚合工业催化剂及其应用 Download PDFInfo
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- CN107602736B CN107602736B CN201710908838.4A CN201710908838A CN107602736B CN 107602736 B CN107602736 B CN 107602736B CN 201710908838 A CN201710908838 A CN 201710908838A CN 107602736 B CN107602736 B CN 107602736B
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- 239000003054 catalyst Substances 0.000 title claims abstract description 101
- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 49
- 239000004711 α-olefin Substances 0.000 title claims abstract description 26
- -1 organic acid ester Chemical class 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 47
- MGWAVDBGNNKXQV-UHFFFAOYSA-N diisobutyl phthalate Chemical compound CC(C)COC(=O)C1=CC=CC=C1C(=O)OCC(C)C MGWAVDBGNNKXQV-UHFFFAOYSA-N 0.000 claims abstract description 33
- 125000001183 hydrocarbyl group Chemical group 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 16
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 13
- 238000007334 copolymerization reaction Methods 0.000 claims abstract description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000009776 industrial production Methods 0.000 claims abstract description 7
- 229920013639 polyalphaolefin Polymers 0.000 claims abstract description 6
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 30
- ZWINORFLMHROGF-UHFFFAOYSA-N 9,9-bis(methoxymethyl)fluorene Chemical group C1=CC=C2C(COC)(COC)C3=CC=CC=C3C2=C1 ZWINORFLMHROGF-UHFFFAOYSA-N 0.000 claims description 21
- 229910052710 silicon Inorganic materials 0.000 claims description 17
- 239000010703 silicon Substances 0.000 claims description 17
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 15
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 15
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 14
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 claims description 12
- 125000003545 alkoxy group Chemical group 0.000 claims description 11
- HIQIXEFWDLTDED-UHFFFAOYSA-N 4-hydroxy-1-piperidin-4-ylpyrrolidin-2-one Chemical compound O=C1CC(O)CN1C1CCNCC1 HIQIXEFWDLTDED-UHFFFAOYSA-N 0.000 claims description 10
- 229920000098 polyolefin Polymers 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical group CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 claims description 8
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 239000005977 Ethylene Substances 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical group CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 claims description 5
- 125000003118 aryl group Chemical group 0.000 claims description 4
- JWCYDYZLEAQGJJ-UHFFFAOYSA-N dicyclopentyl(dimethoxy)silane Chemical compound C1CCCC1[Si](OC)(OC)C1CCCC1 JWCYDYZLEAQGJJ-UHFFFAOYSA-N 0.000 claims description 4
- AHUXYBVKTIBBJW-UHFFFAOYSA-N dimethoxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](OC)(OC)C1=CC=CC=C1 AHUXYBVKTIBBJW-UHFFFAOYSA-N 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 125000005234 alkyl aluminium group Chemical group 0.000 claims description 3
- XDKQUSKHRIUJEO-UHFFFAOYSA-N magnesium;ethanolate Chemical compound [Mg+2].CC[O-].CC[O-] XDKQUSKHRIUJEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Chemical group 0.000 claims description 3
- LCKIEQZJEYYRIY-UHFFFAOYSA-N Titanium ion Chemical compound [Ti+4] LCKIEQZJEYYRIY-UHFFFAOYSA-N 0.000 claims description 2
- 125000005907 alkyl ester group Chemical group 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- UXFBJATYVZPQTG-UHFFFAOYSA-N dimethoxysilicon Chemical compound CO[Si]OC UXFBJATYVZPQTG-UHFFFAOYSA-N 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 238000010574 gas phase reaction Methods 0.000 claims description 2
- MCULRUJILOGHCJ-UHFFFAOYSA-N triisobutylaluminium Chemical group CC(C)C[Al](CC(C)C)CC(C)C MCULRUJILOGHCJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 claims 1
- 238000000975 co-precipitation Methods 0.000 claims 1
- MHDIVRGCDHHRIZ-UHFFFAOYSA-N dimethoxy(phenyl)silicon Chemical compound CO[Si](OC)C1=CC=CC=C1 MHDIVRGCDHHRIZ-UHFFFAOYSA-N 0.000 claims 1
- 238000012685 gas phase polymerization Methods 0.000 claims 1
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 abstract description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract description 2
- 239000011949 solid catalyst Substances 0.000 abstract 3
- 238000009434 installation Methods 0.000 abstract 1
- GRVDJDISBSALJP-UHFFFAOYSA-N methyloxidanyl Chemical group [O]C GRVDJDISBSALJP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000306 component Substances 0.000 description 35
- 239000004743 Polypropylene Substances 0.000 description 21
- 229920001155 polypropylene Polymers 0.000 description 19
- 239000000047 product Substances 0.000 description 10
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- 239000007789 gas Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 4
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 3
- SJJCABYOVIHNPZ-UHFFFAOYSA-N cyclohexyl-dimethoxy-methylsilane Chemical compound CO[Si](C)(OC)C1CCCCC1 SJJCABYOVIHNPZ-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000005491 wire drawing Methods 0.000 description 3
- UWNADWZGEHDQAB-UHFFFAOYSA-N 2,5-dimethylhexane Chemical group CC(C)CCC(C)C UWNADWZGEHDQAB-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000003426 co-catalyst Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000003138 coordinated effect Effects 0.000 description 2
- 229960002380 dibutyl phthalate Drugs 0.000 description 2
- VHPUZTHRFWIGAW-UHFFFAOYSA-N dimethoxy-di(propan-2-yl)silane Chemical compound CO[Si](OC)(C(C)C)C(C)C VHPUZTHRFWIGAW-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002685 polymerization catalyst Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000003609 titanium compounds Chemical class 0.000 description 2
- AISCBZKHUSXEOC-UHFFFAOYSA-N 3-Methyl-3-butenyl tetradecanoate Chemical compound CCCCCCCCCCCCCC(=O)OCCC(C)C AISCBZKHUSXEOC-UHFFFAOYSA-N 0.000 description 1
- FVKRIDSRWFEQME-UHFFFAOYSA-N 3-methylbutyl dodecanoate Chemical compound CCCCCCCCCCCC(=O)OCCC(C)C FVKRIDSRWFEQME-UHFFFAOYSA-N 0.000 description 1
- AMEMLELAMQEAIA-UHFFFAOYSA-N 6-(tert-butyl)thieno[3,2-d]pyrimidin-4(3H)-one Chemical compound N1C=NC(=O)C2=C1C=C(C(C)(C)C)S2 AMEMLELAMQEAIA-UHFFFAOYSA-N 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- QOSMNYMQXIVWKY-UHFFFAOYSA-N Propyl levulinate Chemical compound CCCOC(=O)CCC(C)=O QOSMNYMQXIVWKY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 1
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- RMBPEFMHABBEKP-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2C3=C[CH]C=CC3=CC2=C1 RMBPEFMHABBEKP-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229940078565 isoamyl laurate Drugs 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 229940033357 isopropyl laurate Drugs 0.000 description 1
- 229940074928 isopropyl myristate Drugs 0.000 description 1
- 150000002646 long chain fatty acid esters Chemical class 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
本发明公开一种通用的α‑烯烃聚合工业催化剂及其应用,具体涉及一类由(A)固体催化剂组分、(B)助催化剂有机铝化合物和(C)外给电子体化合物组成的、用于α‑烯烃聚合或共聚合的各种工艺的工业生产催化剂,提供了一种由邻苯二甲酸二正丁酯或邻苯二甲酸二异丁酯与9,9‑二(甲氧基甲基)芴复合内给电子体制备的(A)固体催化剂组分。由烃基烷氧基硅、有机酸酯或烃基烷氧基硅与有机酸酯复合物做外给电子体C组分。(A)固体催化剂组分,(B)助催化剂有机铝化合物和(C)外给电子体化合物的组合使用,用于各种α‑烯烃聚合或共聚合工艺的大规模的工业装置,生产出多种新牌号聚α‑烯烃。
Description
技术领域
本发明属于α-烯烃聚合、共聚合催化剂工业研究应用领域,具体涉及一种通用于α-烯烃聚合、共聚合各种工艺的大规模工业生产催化剂及其应用。
背景技术
目前,齐格勒-纳塔(简称Z-N)催化剂仍是工业烯烃聚合的主体催化剂,烯烃尤其是α-烯烃聚合、共聚合的Z-N催化剂包括(A)含钛的氯化镁载体催化剂组分,(B)助催化剂有机铝化合物和(C)调节聚α-烯烃结构、性质的外给电子体。其中含钛的氯化镁载体催化剂组分中包括内给电子体,内给电子体是Z-N催化剂的核心。在本发明中,将含钛的氯化镁载体催化剂组分简称催化剂组分,其制备主要有三种方法,一种是氯化镁醇合物、内给电子体、钛化合物反应,共沉淀的催化剂组分;第二种方法是球形氯化镁醇合物载体载钛化合物、载内给电子体得到催化剂组分;第三种是二乙氧基镁与氯化钛化合物生成的氯化镁与内给电子体反应制备催化剂组分。
内给电子体是Z-N催化剂的核心,因为内给电子体起到调节催化剂活性和聚α-烯烃结构的关键作用,是催化剂组分的核心组分。但是开发出一种实用于各种工艺的工业生产用内给电子体并非是件容易的事,工业上真正广泛应用的内给电子体的数量不多,性能有限,难以满足日益发展的聚烯烃工业的需求。近年发现两种或多种给电子体复合做内给电子体,能产生协调作用,得到不同于单一的内给电子体的性能,兼备两种内给电子体的优点,甚至发生协调作用产生新的性质。由两种给电子体复配做内给电子体制备的催化剂组分的性能可调节,进而得到满足日益发展的多牌号、特殊性能的聚α-烯烃,满足工业需求的催化剂组分。两种给电子体复合做内给电子体制备催化剂组分是开发综合性能优良或某种性能优秀的新催化剂组分的一种新思路、新方法。尽管两种给电子体复合做内给电子体的研究很多,但适应于各种工艺的通用的工业生产的催化剂组分没有报道。
作为工业聚合催化剂的复合内给电子体的内给电子体必须满足工业生产的基本要求,如来源稳定、价格便宜、性能稳定、有特殊性能、性能可调节等等。
邻苯二甲酸二正丁酯和邻苯二甲酸二异丁酯(以下统称为邻苯二甲酸二(正)异丁酯)是目前工业用Z-N催化剂普遍使用的内给电子体,综合性能较好,价格适中,但暴露出一些安全问题、较低聚合温度下活性不高、聚合物缺乏特殊性能等;而9,9-二(甲氧基甲基)芴的特殊性能突出,如高催化剂活性、聚合温度低、聚烯烃分子量高、聚烯烃等规度高、分子量分布窄、既可作内给电子体又可作外给电子体,是重要给电子体。
本申请人开发了9,9-二(甲氧基甲基)芴的工业生产方法(CN 1166608C),并建立了生产装置,产品9,9-二(甲氧基甲基)芴供应国际市场。
目前两种给电子体复合做内给电子体制备催化剂组分都停留在靠实验经验组合内给电子体的层面,缺乏理性方法指导内给电子体复合催化剂组分的研究,不仅有可能得不到最期望的复合催化剂组分制备配方,还可能造成内给电子体的极大浪费,筛选出好的内给电子体复合需要做大量的实验,消耗大量的时间、人力、物力。
发明内容
本发明选择了邻苯二甲酸二(正)异丁酯与9,9-二(甲氧甲基)芴复合做工业用Z-N催化剂的氯化镁载体催化剂组分的内给电子体,制备出一种通用的工业用聚烯烃催化剂组分,适用于各种工业聚合反应器聚合工艺的催化剂。
具体本发明所述的适于各种聚合工艺的工业大规模制备聚α-烯烃的催化剂产品,其包括催化剂组分A、助催化剂烷基铝B和外给电子体C;其中:
(1)催化剂组分A是氯化镁负载钛离子、复合内给电子体芳香二酸二烷基酯和1,3-二醚的混合物;
(2)助催化剂烷基铝B是三乙基铝、三异丁基铝或它们的混合物;最经常用的是三乙基铝;
(3)外给电子体C是烷基烷氧基硅或有机酸酯或烷基烷氧基硅与有机酸酯复合物。
对于上文公开的技术方案中所述的催化剂,其特征在于:所述催化剂组分A中,芳香二酸二烷基酯是邻苯二甲酸二(正)异丁酯。
对于上文公开的技术方案中所述的催化剂,其特征在于:所述催化剂组分A中,1,3-二醚是9,9-二(甲氧甲基)芴。
对于上文公开的技术方案中所述的催化剂,其特征在于:所述催化剂组分A中,钛的质量分数为2.0-3.8%,镁的质量分数为15.0-20.0%,邻苯二甲酸二(正)异丁酯的质量分数为1.0-7.0%,9,9-二(甲氧甲基)芴的质量分数为1.0-9.0%。
对于上文公开的技术方案中所述的催化剂,邻苯二甲酸二(正)异丁酯与9,9-二(甲氧甲基)芴的摩尔比决定催化剂组分的性能。具体而言,所述邻苯二甲酸二(正)异丁酯与9,9-二(甲氧甲基)芴的摩尔比为1-9.9∶10。
通过调节邻苯二甲酸二(正)异丁酯与9,9-二(甲氧甲基)芴的用量,得到一系列的聚合催化剂,进而得到满足市场需要的多种牌号的聚烯烃。例如,使用了Z-N催化剂组分A复合内给电子体邻苯二甲酸二异丁酯含量2.5%和9,9-二(甲氧甲基)芴含量5%可以生产通用的聚丙烯膜料;使用邻苯二甲酸二异丁酯7%和9,9-二(甲氧甲基)芴8%的Z-N催化剂组分A,通过调节工艺可以生产聚丙烯拉丝料,也可以生产聚丙烯注塑料;再如使用邻苯二甲酸二异丁酯含量4%-5%和9,9-二(甲氧甲基)芴含量3%-5%、可以生产丙烯均聚产品,也可以生产乙烯/丙烯共聚产品。
对于上文公开的技术方案中所述的催化剂,具体而言,所述催化剂组分A的制备方法包括下述方法:①氯化镁醇合物、复合内给电子体和四氯化钛共沉淀方法制备;②球形氯化镁醇合物载体负载四氯化钛和复合内给电子体的方法制备;③二乙氧基镁、四氯化钛反应生成的氯化镁负载复合内给电子体。本发明所列举的①~③所述方法,均为现有技术,是本领域技术人员制备催化剂组分A的常用方法。如申请人利用方法①开发了一些新催化剂组分A的制备及应用的技术(CN 100,491,415C,US 8,344,080B2,US 7,964,678B2)。
对于上文公开的技术方案中所述的催化剂,外给电子体C是烃基烷氧基硅,或有机酸酯,或烃基烷氧基硅与有机酸酯复合物,具体而言,所述的烃基烷氧基硅选自工业上常用的外给电子体,包括C1-10的烷基三甲氧基硅、C1-8的二烷基二甲氧基硅、烷基环烷基二甲氧基硅、二环烷基二甲氧基硅或二苯基二甲氧基硅,典型的烃基烷氧基硅是丙基三甲氧基硅、二异丙基二甲氧基硅、二异丁基二甲氧基硅、甲基环己基二甲氧基硅、二环戊基二甲氧基硅、二苯基二甲氧基硅等;所述的有机酸酯是C10-20的直链天然脂肪酸C3-5的支链烷基酯,典型的是十二酸异丙酯、十二酸异戊酯、十四酸异丙酯、十四酸异戊酯、十六酸异丙酯等;所述的烷基烷氧基硅和有机酸酯组成的复合物,典型的复合物选自丙基三甲氧基硅与十四酸异丙酯、二环戊基二甲氧基硅与十四酸异丙酯、二苯基二甲氧基硅与十四酸异丙酯进行复合。
对于上文公开的技术方案中所述的催化剂,具体而言,所述烃基烷氧基硅和有机酸酯的摩尔比为1-9.9∶10。选取烃基烷氧基硅、有机酸酯还是烃基烷氧基硅与有机酸酯复合物做外给电子体,以及复合外给电子体的烃基烷氧基硅和有机酸酯的种类、烃基烷氧基硅和有机酸酯的摩尔比,取决于复合内给电子体邻苯二甲酸二(正)异丁酯与9,9-二(甲氧甲基)芴的比例,即取决于生产聚α-烯烃的牌号。
对于上文公开的技术方案中所述的催化剂,具体而言,所述的α-烯烃聚合为丙烯聚合、1-丁烯聚合、乙烯与丙烯共聚合、乙烯与1-丁烯共聚合或丙烯与1-丁烯共聚合。
对于上文公开的技术方案中任一项所述的催化剂,其可以应用于各种聚合工艺的大规模工业生产α-烯烃聚合物中,具体而言,所述应用包括到:(1)气相反应:UNIPOL气相流化床反应器工艺的α-烯烃聚合,NOVOLEN立体式搅拌釜气相反应器工艺的α-烯烃聚合,INNOVENE卧搅拌釜式气相反应器工艺的α-烯烃聚合,JPP日本窒素卧釜式气相反应器工艺的α-烯烃聚合;(2)间歇本体反应:釜式反应器聚合工艺的α-烯烃聚合;(3)连续本体反应:SPHERIPOL环管反应器工艺的α-烯烃聚合,ZHG工艺的一个卧式本体反应器串联一个卧式气相反应釜工艺的α-烯烃聚合。在这些工艺中,α-烯烃聚合应用最多、最重要的是丙烯聚合和丙烯与乙烯的共聚合工艺。
对于上文公开的技术方案中所述的催化剂的应用,具体而言,所述的应用包括在同一种工艺同一装置中生产性质差异大的多种牌号聚烯烃。本发明的复合外给电子体C,在特定的工艺中的选择有所不同,如NIPOL气相流化床反应器聚合工艺丙烯聚合,使用的外给电子体是烷基烷氧基硅和有机酸酯组成的二元复合物,如丙基三甲氧基硅与十四酸异丙酯可生产通用性聚丙烯。
本发明的工业用催化剂的优势:
1.适用面广,几乎包括了工业上使用的α-烯烃聚合工艺;
2.复合内给电子体邻苯二甲酸二(正)异丁酯与9,9-二(甲氧甲基)芴,以不同摩尔比复合制备的催化剂组分具有优良的可调节性能,甚至产生特殊性能的聚丙烯,满足聚丙烯牌号的需求。
3.众所周知目前通用的内给电子体邻苯二甲酸二丁酯对人畜有安全问题,而9,9-二(甲氧甲基)芴可以看成是绿色内给电子体,二者复合使用会大幅度减少邻苯二甲酸二丁酯的用量。
4.不同的聚合工艺,选取烃基烷氧基硅、有机酸酯还是烃基烷氧基硅与有机酸酯复合物做外给电子体,以及复合外给电子体的烷基烷氧基硅和有机酸酯的种类、烃基烷氧基硅和有机酸酯的摩尔比,可方便的调节催化剂的性能。
5.选用长链的脂肪酸酯做外给电子体C的组分,留在聚合物中可以做增塑剂用。
具体实施方式
下述非限定性实施例可以使本领域的普通技术人员更全面地理解本发明,但不以任何方式限制本发明。
实施例1
引进的某UNIPOL气相流化床反应器工艺的60万吨丙烯聚合装置,使用了Z-N催化剂组分A复合内给电子体9,9-二(甲氧甲基)芴含量5%、邻苯二甲酸二异丁酯含量2.5%、三乙基铝助催化剂、丙基三甲氧基硅与十四酸异丙酯复合外给电子体,反应器温度为68.5-71.5℃、丙烯分压2.7-2.8MPag、TEAL/Ti为60-75、H2/C3比为0.0028、催化剂停留时间为1.29h的运行参数下,分别采用本发明的催化剂与装置本身带的催化剂生产聚丙烯粉料取样分析结果如下表:
通过对比,本发明催化剂生产的聚丙烯的等规指数大于装置带的催化剂生产聚丙烯的等规指数,堆积密度高于装置带的催化剂的生产聚丙烯堆积密度,聚丙烯的平均颗粒尺寸与装置带的催化剂的相当,聚丙烯的细粉含量低于装置带的催化剂生产的聚丙烯的细分含量,本发明催化剂活性明显高于装置带的催化剂的活性。
本发明催化剂生产的聚丙烯产品的灰分比装置带的催化剂的聚丙烯产品的灰分低;黄色指数低于装置带的催化剂生产的聚丙烯的黄色指数。
本发明催化剂的单耗比装置带的催化剂单耗平均低19.6%,三乙基铝单耗比装置带的催化剂单耗平均低30.6%,外给电子体单耗比进口给电子体单耗低32.6%。
本流化床反应器生产的聚丙烯是通用性聚丙烯。催化剂的效率为24kgpp/gcatl。
实施例2
在某引进年产55万吨的NOVOLEN立体式搅拌釜气相反应器工艺的丙烯烃聚合工艺装置上,使用本发明的催化剂A组分含钛2.7%、镁18.5%、9,9-二(甲氧甲基)芴8%和邻苯二甲酸二异丁酯7%,助催化剂三乙基铝,外给电子体甲基环己基二甲氧基硅的Z-N改进的催化剂。按装置本身的工艺参数操作,生产出合格的拉丝料牌号1080K的1638.5吨,注塑料牌号1100N的10984.4吨和牌号HPPSS产品794.9吨。催化剂活性为28.85kgpp/g催化剂。通过调节工艺参数,将符合拉丝料1080K的等规度调节到生产BOPP薄膜料的等规度,通过氢调,把注塑料牌号1100N聚烯烃,转变成生产高熔融指数的产品。催化剂效率等于大于46kgpp/g.催化剂。
实施例3
在某年产20万吨气相INNOVENE单反应器工艺上以及某引进30万吨/年INNOVENE工艺串联双反应器工艺上,使用本发明含9,9-二(甲氧甲基)芴含量3%-5%、邻苯二甲酸二异丁酯含量4%-5%、钛含量2.5%-3%、镁含量18.0%-20%的催化剂A组分,助催化剂三乙基铝,外给电子体是甲基环己基二甲氧基硅烷。可以生产丙烯均聚及乙烯/丙烯共聚产品,其中INNOVENE单反应器上应用催化剂催化效率达到27Kg.PP/g.cat,在串联双反应器上应用催化剂催化效率达到32Kg.PP/g.cat。
实施例4
在连续本体法,在SPHERIPOL年产30万吨聚丙烯环管反应器工艺的丙烯聚合装置上,使用本发明含9,9-二(甲氧甲基)芴含量2%、邻苯二甲酸二异丁酯含量6%、钛含量2.5%、镁含量18.9%的催化剂A组分,助催化剂三乙基铝,外给电子体是通常的二异丙基二甲氧基硅。按装置的生产工艺参数(包括预聚合)操作,得到使用评价结论:(1)装置运行情况正常。(2)活性最高达到52kgPP/gcat、氢调敏感性好、聚丙烯等规度较高、聚丙烯细粉量较低。(3)能满足产品质量的控制要求。(4)能满足使用要求。
Claims (7)
1.一种用于多种聚合工艺的工业大规模制备聚α-烯烃的催化剂,其特征在于:包括催化剂组分A、助催化剂烷基铝B 和外给电子体C;其中:
(1)催化剂组分A 是由氯化镁负载钛离子、复合内给电子体芳香二酸二烷基酯和1,3-二醚组成;
(2)助催化剂烷基铝B 是三乙基铝、三异丁基铝或它们的混合物;
(3)外给电子体C 是烃基烷氧基硅、有机酸酯或烃基烷氧基硅与有机酸酯复合物:
所述催化剂组分A 中,芳香二酸二烷基酯是邻苯二甲酸二正丁酯或邻苯二甲酸二异丁酯;
所述催化剂组分A 中,1,3-二醚是9,9-二(甲氧甲基)芴;
所述催化剂组分A 中,钛的质量分数为2.0-3.8%,镁的质量分数为15.0-20.0%,邻苯二甲酸二正丁酯或邻苯二甲酸二异丁酯的质量分数为1.0-7.0%,9,9-二(甲氧甲基)芴的质量分数为1.0-9.0%。
2.根据权利要求1 所述的催化剂,其特征在于:所述邻苯二甲酸二正丁酯或邻苯二甲酸二异丁酯与9,9-二(甲氧甲基)芴的摩尔比为1-9.9:10。
3.根据权利要求1 所述的催化剂,其特征在于:所述催化剂组分A 的制备方法包括下述方法:①氯化镁醇合物、复合内给电子体和四氯化钛共沉淀方法制备;②球形氯化镁醇合物载体负载四氯化钛和复合内给电子体的方法制备;③二乙氧基镁、四氯化钛反应生成的氯化镁负载复合内给电子体。
4.根据权利要求1 所述的催化剂,其特征在于:所述的烃基烷氧基硅选自C1-10 的烷基三甲氧基硅、C1-8 的二烷基二甲氧基硅、烷基环烷基二甲氧基硅、二环烷基二甲氧基硅或二苯基二甲氧基硅;
所述的有机酸酯是C10-20 的直链天然脂肪酸C3-5 的支链烷基酯;
所述的烃基烷氧基硅和有机酸酯组成的复合物选自丙基三甲氧基硅与十四酸异丙酯、二环戊基二甲氧基硅与十四酸异丙酯、二苯基二甲氧基硅与十四酸异丙酯的复合物。
5.根据权利要求1 或4 所述的催化剂,其特征在于:所述烃基烷氧基硅和有机酸酯的摩尔比为1-9.9:10。
6.根据权利要求1 所述的催化剂,其特征在于:所述的α-烯烃聚合为丙烯聚合、1-丁烯聚合、乙烯与丙烯共聚合、乙烯与1-丁烯共聚合或丙烯与1-丁烯共聚合。
7.根据权利要求1~6 中任一项所述的催化剂在各种聚合工艺的大规模工业生产α-烯烃聚合物中的应用,其特征在于:所述应用包括(1)气相反应:UNIPOL 气相流化床反应器工艺的α-烯烃聚合,NOVOLEN 立体式搅拌釜气相反应器工艺的α-烯烃聚合,INNOVENE卧搅拌釜式气相反应器工艺的α-烯烃聚合,JPP 日本窒素卧釜式气相反应器工艺的α-烯烃聚合;(2)间歇本体反应:釜式反应器聚合工艺的α-烯烃聚合;(3)连续本体反应:SPHERIPOL环管反应器工艺的α-烯烃聚合,ZHG 工艺的一个卧式本体反应器串联一个卧式气相反应釜工艺的α-烯烃聚合;所述应用还包括在同一种工艺同一装置中生产性质差异大的多种牌号聚烯烃。
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