JP6096923B2 - 気相重合で取得したポリオレフィン粒子の処理方法 - Google Patents
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- 239000002245 particle Substances 0.000 title claims description 158
- 229920000098 polyolefin Polymers 0.000 title claims description 143
- 238000000034 method Methods 0.000 title claims description 54
- 238000012685 gas phase polymerization Methods 0.000 title claims description 30
- 238000007872 degassing Methods 0.000 claims description 126
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 90
- 239000007789 gas Substances 0.000 claims description 79
- 238000006116 polymerization reaction Methods 0.000 claims description 53
- 229910052757 nitrogen Inorganic materials 0.000 claims description 45
- 229920000642 polymer Polymers 0.000 claims description 32
- 150000001336 alkenes Chemical class 0.000 claims description 20
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 18
- 239000005977 Ethylene Substances 0.000 claims description 18
- 239000002685 polymerization catalyst Substances 0.000 claims description 16
- 239000003085 diluting agent Substances 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 13
- 239000012495 reaction gas Substances 0.000 claims description 10
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 9
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- 239000003054 catalyst Substances 0.000 description 28
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- 239000010936 titanium Substances 0.000 description 3
- XWJBRBSPAODJER-UHFFFAOYSA-N 1,7-octadiene Chemical compound C=CCCCCC=C XWJBRBSPAODJER-UHFFFAOYSA-N 0.000 description 2
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- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
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- LPIQUOYDBNQMRZ-UHFFFAOYSA-N cyclopentene Chemical compound C1CC=CC1 LPIQUOYDBNQMRZ-UHFFFAOYSA-N 0.000 description 2
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- YNLAOSYQHBDIKW-UHFFFAOYSA-M diethylaluminium chloride Chemical compound CC[Al](Cl)CC YNLAOSYQHBDIKW-UHFFFAOYSA-M 0.000 description 2
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- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 2
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- 150000003624 transition metals Chemical class 0.000 description 2
- MCULRUJILOGHCJ-UHFFFAOYSA-N triisobutylaluminium Chemical compound CC(C)C[Al](CC(C)C)CC(C)C MCULRUJILOGHCJ-UHFFFAOYSA-N 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- PRBHEGAFLDMLAL-GQCTYLIASA-N (4e)-hexa-1,4-diene Chemical compound C\C=C\CC=C PRBHEGAFLDMLAL-GQCTYLIASA-N 0.000 description 1
- BKWNZVQQIYSORG-UHFFFAOYSA-N 3-ethylbicyclo[2.2.1]hepta-1,3-diene Chemical compound C1CC2=CC(CC)=C1C2 BKWNZVQQIYSORG-UHFFFAOYSA-N 0.000 description 1
- RMDKEBZUCHXUER-UHFFFAOYSA-N 4-methylbicyclo[2.2.1]hept-2-ene Chemical compound C1CC2C=CC1(C)C2 RMDKEBZUCHXUER-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 230000005493 condensed matter Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
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- 230000000415 inactivating effect Effects 0.000 description 1
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- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 150000002681 magnesium compounds Chemical class 0.000 description 1
- 239000012968 metallocene catalyst Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- SJYNFBVQFBRSIB-UHFFFAOYSA-N norbornadiene Chemical compound C1=CC2C=CC1C2 SJYNFBVQFBRSIB-UHFFFAOYSA-N 0.000 description 1
- 239000013110 organic ligand Substances 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035909 sensory irritation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XBFJAVXCNXDMBH-UHFFFAOYSA-N tetracyclo[6.2.1.1(3,6).0(2,7)]dodec-4-ene Chemical compound C1C(C23)C=CC1C3C1CC2CC1 XBFJAVXCNXDMBH-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000006163 transport media Substances 0.000 description 1
- 150000003682 vanadium compounds Chemical class 0.000 description 1
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- 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
- C08F6/00—Post-polymerisation treatments
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- 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
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- 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
- C08F6/00—Post-polymerisation treatments
- C08F6/001—Removal of residual monomers by physical means
- C08F6/005—Removal of residual monomers by physical means from solid polymers
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- 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
- C08F6/00—Post-polymerisation treatments
- C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B2013/005—Degassing undesirable residual components, e.g. gases, unreacted monomers, from material to be moulded
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- 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
- C08F10/02—Ethene
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- 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
- C08F2/00—Processes of polymerisation
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Description
a)前記ポリオレフィン粒子を前記気相重合反応器から連続的又は断続的に排出し、前記粒子を第1脱気容器に移送するステップ、
b)前記第1脱気容器内で少なくとも85mol%のC3−C5アルカンからなるガスストリームと前記ポリオレフィン粒子とを接触させ、前記第1脱気容器内における前記ポリオレフィン粒子の平均滞留時間は5分〜5時間であるステップ、
c)前記ポリオレフィン粒子を第2脱気容器に移送するステップ、
d)前記第2脱気容器内で窒素及び蒸気からなるストリームと前記ポリオレフィン粒子とを接触させ、前記第2脱気容器内における前記ポリオレフィン粒子の平均滞留時間は5分〜2時間であり、前記接触は水の凝縮が発生しない条件下で行われるステップ、
e)前記ポリオレフィン粒子を第3脱気容器に移送するステップ、
f)前記第3脱気容器内で窒素からなるストリームと前記ポリオレフィン粒子を接触させ、前記第3脱気容器内における前記ポリオレフィン粒子の平均滞留時間は5分〜8時間であるステップを含む、ポリオレフィン粒子の処理方法である。
重合条件
1−ヘキセンを共単量体として用いて、直鎖低密度ポリエチレン(LLDPE)を図1に示す流動床反応器で製造した。
−酢酸エチルを内部供与体化合物として用いる、WO2004/106388A2の実施例1に記載の手順により製造したチタン固形触媒成分、
−共触媒として機能する、トリイソブチルアルミニウム(TIBAL)と塩化ジエチルアルミニウム(DEAC)を重量比7:1で混合した混合物、
−外部供与体として機能する、テトラヒドロフランを含むチーグラー・ナッタ触媒を用いた。
LLDPE粒子50kg/hを流動床反応器(1)から連続的に排出して第1脱気容器(12)の頂部に移送した。
第1脱気容器(12)から引き出されたLLDPE粒子を第2脱気容器(20)の頂部で内部に導入した。LLDPE粒子は重力により脱気容器に沿って下方に移動して、第2脱気容器(20)の底部で導入された窒素及び蒸気を含有するガスストリームと向流的に接触した。
第2脱気容器(20)から排出された後、LLDPE粒子は、貯蔵及びバッファサイロとしても機能する第3脱気容器(26)で窒素流によってさらにパージされた。第3脱気容器(26)内でLLDPE粒子は重力により下方に移動して窒素ストリームと向流的に接触した。第3脱気容器(26)の操作温度は70℃であり、操作水準は最大許容水準の25%に維持した。第3脱気容器(26)の頂部から残余の炭化水素を含有する窒素ストリームを取得した。該ストリームはコンプレッサー(32)で圧縮され、一部はLLDPE粒子を第2脱気容器(20)から第3脱気容器(26)に移送する際に再使用され、一部は第2脱気容器(20)に未使用窒素及び蒸気と共に供給される窒素として用いられた。
C6炭化水素(飽和及び不飽和;分枝状及び直鎖):10ppm
イソ−C8炭化水素:5ppm
ノルマルC8炭化水素:0ppm
n−C10炭化水素:8ppm
n−C12炭化水素:15ppm
n−C14炭化水素:9ppm
n−C16炭化水素:3ppm
Claims (9)
- 気相重合反応器内で重合触媒系及び重合希釈剤として機能するC3−C5アルカンの存在下に1種以上のオレフィンの気相重合で取得したポリオレフィン粒子を処理する方法であって、
a)前記ポリオレフィン粒子を前記気相重合反応器から連続的又は断続的に排出し、前記粒子を第1脱気容器に移送するステップ、
b)前記第1脱気容器内で少なくとも85mol%のC3−C5アルカンを含むガスストリームと前記ポリオレフィン粒子とを接触させ、前記第1脱気容器内における前記ポリオレフィン粒子の平均滞留時間は5分〜5時間であるステップ、
c)前記ポリオレフィン粒子を第2脱気容器に移送するステップ、
d)前記第2脱気容器内で窒素及び2mol%〜20mol%の水蒸気を含むストリームと前記ポリオレフィン粒子とを接触させ、前記第2脱気容器内における前記ポリオレフィン粒子の平均滞留時間は5分〜2時間であり、前記接触は水の凝縮が発生しない条件下で行われるステップ、
e)前記ポリオレフィン粒子を第3脱気容器に移送するステップ、
f)前記第3脱気容器内で窒素からなるストリームと前記ポリオレフィン粒子とを接触させ、前記第3脱気容器内における前記ポリオレフィン粒子の平均滞留時間は5分〜8時間であるステップ
を含み、
ステップa)において、前記ポリオレフィン粒子は分離容器に排出され、該分離容器内で前記粒子が、付随的に排出される反応ガスの主要部分から分離されて該分離容器から前記第1脱気容器に移送される、ポリオレフィン粒子の処理方法。 - ステップb)、d)、f)の前記ポリオレフィン粒子の接触が向流的に行われる、請求項1に記載のポリオレフィン粒子の処理方法。
- ステップd)において前記ポリオレフィン粒子と接触する窒素の少なくとも一部は、以前にステップf)において前記ポリオレフィン粒子との接触に用いられたものである、請求項1又は2にポリオレフィン粒子の処理方法。
- ステップe)は、少なくとも一部が以前にステップf)において前記ポリオレフィン粒子との接触に用いられた窒素によって行われる、請求項1〜3のいずれか一項にポリオレフィン粒子の処理方法。
- ステップb)は、0.1MPa〜0.4MPaの圧力と50℃〜120℃の温度で行われる、請求項1〜4のいずれか一項に記載のポリオレフィン粒子の処理方法。
- ステップd)は、0.1MPa〜0.35MPaの圧力と50℃〜120℃の温度で行われる、請求項1〜5のいずれか一項に記載のポリオレフィン粒子の処理方法。
- ステップf)は、0.1MPa〜0.2MPaの圧力と50℃〜120℃の温度で行われる、請求項1〜6のいずれか一項に記載のポリオレフィン粒子の処理方法。
- 気相重合反応器内で重合触媒系及び重合希釈剤として機能するC3−C5アルカンの存在下に1種以上のオレフィンの気相重合を行ってポリオレフィン重合体を製造する方法であって、
前記取得したポリオレフィン粒子を請求項1〜7のいずれか一項に記載の方法によって処理する、ポリオレフィン重合体の製造方法。 - 前記ポリオレフィン重合体はエチレンの単独重合体又は共重合体である、請求項8に記載のポリオレフィン重合体の製造方法。
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PCT/EP2013/076189 WO2014090860A1 (en) | 2012-12-11 | 2013-12-11 | Process for treating polyolefin particles obtained by gas-phase polymerization |
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EP2743278A1 (en) * | 2012-12-11 | 2014-06-18 | Basell Polyolefine GmbH | Process for degassing and buffering polyolefin particles obtained by olefin polymerization |
BR112017028352B1 (pt) | 2015-07-31 | 2022-02-08 | Exxonmobil Chemical Patents Inc | Recuperação de monômeros não reagidos a partir de processos de polimerização de olefina |
WO2018114071A1 (en) * | 2016-12-23 | 2018-06-28 | Borealis Ag | Process for obtaining low volatile plastomers |
RU2675701C1 (ru) * | 2017-06-26 | 2018-12-24 | Федеральное государственное унитарное предприятие "Ордена Ленина и ордена Трудового Красного Знамени Научно-исследовательский институт синтетического каучука имени академика С.В. Лебедева" (ФГУП НИИСК) | Способ получения антитурбулентной присадки к органическим средам, в том числе к нефти для снижения гидродинамического сопротивления при их перекачке по трубопроводам |
US11390697B2 (en) | 2017-08-01 | 2022-07-19 | Exxonmobil Chemical Patents Inc. | Methods of polyolefin solids recovery |
CN111133011B (zh) | 2017-08-01 | 2022-12-27 | 埃克森美孚化学专利公司 | 聚烯烃固体回收方法 |
EP3438133A1 (en) * | 2017-08-04 | 2019-02-06 | Basell Polyolefine GmbH | Polymerization process including discharging polyolefin particles from a gas-phase polymerization reactor |
CN111036152B (zh) * | 2018-10-11 | 2022-12-20 | 中国石油化工股份有限公司 | 一种用于制备聚烯烃的装置及制备聚烯烃的方法 |
US12103988B2 (en) | 2018-12-18 | 2024-10-01 | Basell Polyolefine Gmbh | Gas-phase process for preparing ethylene polymers |
EP3738984B1 (en) | 2019-03-29 | 2021-11-24 | Sumitomo Chemical Company, Limited | Method for producing heterophasic propylene polymer particles |
CN112745439B (zh) * | 2019-10-31 | 2022-07-12 | 中国石油化工股份有限公司 | 一种聚合物溶液制备方法和一种丁基橡胶生产方法 |
CN110981997A (zh) * | 2019-11-25 | 2020-04-10 | 南京炼油厂有限责任公司 | 一种间歇法本体聚合制备聚丙烯的方法和反应系统 |
US20240254264A1 (en) * | 2021-05-18 | 2024-08-01 | Basell Polyolefine Gmbh | Process for preparing an olefin polymer comprising withdrawing a gaseous sample for analyzing |
CN114014960B (zh) * | 2021-10-21 | 2023-07-11 | 金聚合科技(宁波)有限公司 | 一种用于聚烯烃提纯的系统和方法 |
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