TH2001007091A - Controlling the molecular weight distribution of polyethylene by external donors. - Google Patents
Controlling the molecular weight distribution of polyethylene by external donors.Info
- Publication number
- TH2001007091A TH2001007091A TH2001007091A TH2001007091A TH2001007091A TH 2001007091 A TH2001007091 A TH 2001007091A TH 2001007091 A TH2001007091 A TH 2001007091A TH 2001007091 A TH2001007091 A TH 2001007091A TH 2001007091 A TH2001007091 A TH 2001007091A
- Authority
- TH
- Thailand
- Prior art keywords
- range
- catalyst
- process according
- polyethylene
- molecular weight
- Prior art date
Links
- -1 polyethylene Polymers 0.000 title claims abstract 11
- 239000004698 Polyethylene Substances 0.000 title claims abstract 10
- 229920000573 polyethylene Polymers 0.000 title claims abstract 10
- 150000001875 compounds Chemical class 0.000 claims abstract 9
- 239000003426 co-catalyst Substances 0.000 claims abstract 8
- 229920000642 polymer Polymers 0.000 claims abstract 6
- 239000003054 catalyst Substances 0.000 claims abstract 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000002002 slurry Substances 0.000 claims abstract 4
- 239000002904 solvent Substances 0.000 claims abstract 4
- 229910052719 titanium Inorganic materials 0.000 claims abstract 4
- 239000010936 titanium Substances 0.000 claims abstract 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract 3
- 239000005977 Ethylene Substances 0.000 claims abstract 3
- 239000011954 Ziegler–Natta catalyst Substances 0.000 claims abstract 3
- 238000006116 polymerization reaction Methods 0.000 claims abstract 3
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims abstract 2
- 238000002360 preparation method Methods 0.000 claims abstract 2
- 238000000926 separation method Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims 17
- JWCYDYZLEAQGJJ-UHFFFAOYSA-N dicyclopentyl(dimethoxy)silane Chemical compound C1CCCC1[Si](OC)(OC)C1CCCC1 JWCYDYZLEAQGJJ-UHFFFAOYSA-N 0.000 claims 3
- 239000004711 α-olefin Substances 0.000 claims 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims 2
- 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 2
- XFAOZKNGVLIXLC-UHFFFAOYSA-N dimethoxy-(2-methylpropyl)-propan-2-ylsilane Chemical compound CO[Si](C(C)C)(OC)CC(C)C XFAOZKNGVLIXLC-UHFFFAOYSA-N 0.000 claims 2
- JUESRADRPFMUCL-UHFFFAOYSA-N dimethoxy-methyl-(2-methylpropyl)silane Chemical compound CO[Si](C)(OC)CC(C)C JUESRADRPFMUCL-UHFFFAOYSA-N 0.000 claims 2
- 229910052710 silicon Inorganic materials 0.000 claims 2
- 239000010703 silicon Substances 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 2
- XYJRNCYWTVGEEG-UHFFFAOYSA-N trimethoxy(2-methylpropyl)silane Chemical compound CO[Si](OC)(OC)CC(C)C XYJRNCYWTVGEEG-UHFFFAOYSA-N 0.000 claims 2
- OXXJTGHXCWOHAX-UHFFFAOYSA-N COC(CC[SiH3])(OC)OC.C(CC)[Si](OC)(OC)OC Chemical compound COC(CC[SiH3])(OC)OC.C(CC)[Si](OC)(OC)OC OXXJTGHXCWOHAX-UHFFFAOYSA-N 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 claims 1
- 125000003118 aryl group Chemical group 0.000 claims 1
- 125000004432 carbon atom Chemical group C* 0.000 claims 1
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 239000000155 melt Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000006467 substitution reaction Methods 0.000 claims 1
- SQMCXYZBYPDEMT-UHFFFAOYSA-N triethylalumane Chemical group CC[Al](CC)CC.CC[Al](CC)CC SQMCXYZBYPDEMT-UHFFFAOYSA-N 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
Abstract
การควบคุมการกระจายตัวของน้ำหนักโมเลกุลของพอลิเอทิลีน รวมถึงลดปริมาณควันระหว่าง การขึ้นรูปพอลิเอทิลีน ที่ซึ่งกระบวนการเตรียมพอลิเอทิลีนที่มีการกระจายตัวของน้ำหนักโมเลกุล (molecular weight distribution) แคบ ประกอบด้วยขั้นตอนของ: ก) การพอลิเมอรไรซ์เอทิลีนอย่างต่อเนื่อง โดยการนำกระแสของเอทิลีน ไฮไดรเจน ตัวทำละลาย ตัวเร่งปฏิกิริยาซีเกลอร์-นัตตา (Ziegler-Natta catalyst) ที่ประกอบด้วยไททาเนียม ตัวเร่งปฏิกิริยาร่วม (co-catalyst) สารให้อิเล็กตรอนภายนอก (external electron donor) ที่เลือกจากสารประกอบอัลคอกซีไซเลน (alkoxysilane compound) เข้าสู่รีแอกเตอร์ เพื่อผลิตสเลอรี (slurry) ของพอลิเมอร์; ข) การกำจัดกระแสแก๊สที่เหลือจากปฏิกิริยาออกจากกระแสสเลอรีของพอลิเมอร์ที่ได้จาก ก) ค) การแยกกระแสพอลิเมอร์ในข้อ ข) ออกจากตัวทำละลาย Controlling the molecular weight distribution of polyethylene including reducing the amount of smoke during polyethylene molding where the preparation process for polyethylene with a narrow molecular weight distribution consists of the steps of: a) continuous polymerization of ethylene; By introducing a stream of ethylene hydride, solvent, and a Seeker-Natta catalyst. (Ziegler-Natta catalyst) containing titanium. co-catalyst co-catalyst, selected external electron donor from alkoxysilane compounds (alkoxysilane compound) into the reactor to produce slurry of polymers; b) Removal of the remaining gas stream from the polymer slurry stream obtained from a) c) Separation of the polymer stream in b) from the solvent.
Claims (17)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2021/061731 WO2022130220A1 (en) | 2020-12-15 | 2021-12-15 | Molecular weight distribution adjustment of polyethylene by external electron donor |
CN202180080533.3A CN116529271A (en) | 2020-12-15 | 2021-12-15 | Modulation of molecular weight distribution of polyethylene by external electron donor |
US18/267,380 US20240059812A1 (en) | 2020-12-15 | 2021-12-15 | Molecular weight distribution adjustment of polyethylene by external electron donor |
JP2023532449A JP2023552736A (en) | 2020-12-15 | 2021-12-15 | Adjustment of molecular weight distribution of polyethylene by external electron donor |
KR1020237018465A KR20230098316A (en) | 2020-12-15 | 2021-12-15 | Adjustment of the molecular weight distribution of polyethylene by an external electron donor |
EP21905941.7A EP4263562A4 (en) | 2020-12-15 | 2021-12-15 | Molecular weight distribution adjustment of polyethylene by external electron donor |
Publications (1)
Publication Number | Publication Date |
---|---|
TH2001007091A true TH2001007091A (en) | 2022-10-31 |
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