ZA200704317B - Process for transitioning between Ziegler-Natta-based and chromium-based catalysts - Google Patents

Process for transitioning between Ziegler-Natta-based and chromium-based catalysts

Info

Publication number
ZA200704317B
ZA200704317B ZA200704317A ZA200704317A ZA200704317B ZA 200704317 B ZA200704317 B ZA 200704317B ZA 200704317 A ZA200704317 A ZA 200704317A ZA 200704317 A ZA200704317 A ZA 200704317A ZA 200704317 B ZA200704317 B ZA 200704317B
Authority
ZA
South Africa
Prior art keywords
natta
ziegler
transitioning
chromium
catalysts
Prior art date
Application number
ZA200704317A
Inventor
Mark G Goode
David F Hussein
David C Schutz
Kevin J Cann
Robert L Santana
Agapios K Agapiou
Original Assignee
Univation Tech Llc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Univation Tech Llc filed Critical Univation Tech Llc
Publication of ZA200704317B publication Critical patent/ZA200704317B/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials
ZA200704317A 2004-12-21 2007-05-25 Process for transitioning between Ziegler-Natta-based and chromium-based catalysts ZA200704317B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63782904P 2004-12-21 2004-12-21

Publications (1)

Publication Number Publication Date
ZA200704317B true ZA200704317B (en) 2009-10-28

Family

ID=38907336

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200704317A ZA200704317B (en) 2004-12-21 2007-05-25 Process for transitioning between Ziegler-Natta-based and chromium-based catalysts

Country Status (3)

Country Link
CN (1) CN101080423B (en)
ES (1) ES2353894T3 (en)
ZA (1) ZA200704317B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9085650B2 (en) * 2009-12-18 2015-07-21 Total Research & Technology Feluy Method for replacing incompatible ethylene polymerization catalysts
CN103772544B (en) * 2012-10-20 2016-06-15 中国石油化工股份有限公司 Gas-phase polyethylene titanium system and chromium-based catalysts switching technique
US9914794B2 (en) * 2014-05-27 2018-03-13 Sabic Global Technologies B.V. Process for transitioning between incompatible catalysts
JP2018501395A (en) * 2014-12-22 2018-01-18 サビック グローバル テクノロジーズ ベスローテン フェンノートシャップ Migration method between incompatible catalysts
JP6761810B2 (en) * 2014-12-22 2020-09-30 サビック グローバル テクノロジーズ ベスローテン フェンノートシャップ Transfer method between incompatible catalysts
WO2019083715A1 (en) * 2017-10-27 2019-05-02 Univation Technologies, Llc Selectively transitioning polymerization processes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5442019A (en) * 1994-03-25 1995-08-15 Exxon Chemical Company Process for transitioning between incompatible polymerization catalysts
DE19510493A1 (en) * 1994-03-31 1995-10-05 Marquardt Gmbh Laser welding of thermoplastic housing parts
US5672666A (en) * 1995-06-05 1997-09-30 Exxon Chemical Patents Inc. Process for transitioning between incompatible polymerization catalysts

Also Published As

Publication number Publication date
ES2353894T3 (en) 2011-03-08
CN101080423A (en) 2007-11-28
CN101080423B (en) 2011-06-15

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