TH33700A - Processes for the preparation of catalysts for olefins polymerization, the catalysts obtained by this process, and processes for polymerizing olefins in the presence of these catalysts. - Google Patents
Processes for the preparation of catalysts for olefins polymerization, the catalysts obtained by this process, and processes for polymerizing olefins in the presence of these catalysts.Info
- Publication number
- TH33700A TH33700A TH9201001440A TH9201001440A TH33700A TH 33700 A TH33700 A TH 33700A TH 9201001440 A TH9201001440 A TH 9201001440A TH 9201001440 A TH9201001440 A TH 9201001440A TH 33700 A TH33700 A TH 33700A
- Authority
- TH
- Thailand
- Prior art keywords
- catalysts
- processes
- olefins
- mixture
- preparation
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title claims abstract 7
- 150000001336 alkenes Chemical class 0.000 title claims abstract 4
- 238000006116 polymerization reaction Methods 0.000 title claims abstract 3
- 238000000034 method Methods 0.000 title 3
- 230000000379 polymerizing effect Effects 0.000 title 1
- 239000000203 mixture Substances 0.000 claims abstract 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical group [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract 3
- 230000004913 activation Effects 0.000 claims abstract 2
- 239000003795 chemical substances by application Substances 0.000 claims abstract 2
- 150000001844 chromium Chemical class 0.000 claims abstract 2
- 150000001875 compounds Chemical class 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 238000004519 manufacturing process Methods 0.000 claims abstract 2
- 238000002844 melting Methods 0.000 claims abstract 2
- 230000008018 melting Effects 0.000 claims abstract 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims abstract 2
- 150000002927 oxygen compounds Chemical class 0.000 claims abstract 2
- 238000001556 precipitation Methods 0.000 claims abstract 2
- 239000000376 reactant Substances 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
Abstract
กรรมวิธีสำหรับการเตรียมตัวเร่งปฏิกิริยาสำหรับการพอลิเมอไรส์โอลีฟิน ซึ่งประกอบด้วย a) การผสมสารรองรับที่มีสารประกอบ (A) อย่างน้อยที่สุด หนึ่งชนิดที่ซึ่งเลือกจากสรรจากสารประกอบออกซิเจนของธาตุ กลุ่ม IV b III a และ IV a ที่มีเกลือโครเมียมอย่างน้อยที่ สุดหนึ่งชนิด b) การทำให้สารผสมดังกล่าวนั้นว่องไวล่วงหน้า โดยการทำให้ ร้อนภายใต้บรรยากาศของการออกซิไดส์ที่อุณหภูมิ ซึ่งต่ำกว่า อุณหภูมิหลอมเหลวของเกลือโครเมียมเพื่อให้ได้สารเริ่มต้น ของตัวเร่งปฏิกิริยา c) การทำให้สารเริ่มต้นนี้ว่องไวโดยการเผาไหม้เป็นเถ้าภาย ใต้บรรยากาศของการออกซิไดส์ในภาวะซึ่งอย่างน้อยที่สุดส่วน หนึ่งของโครเมียมเปลี่ยนไปเป็นเฮกซาเวเลนท์ โครเมียม Process for preparing the catalyst for olefin polymerization. Consisting of a) a mixture of supports containing at least compound (A) One, selected from oxygen compounds of group IV b, III a and IV a, containing at least one chromium salt; b) the precipitation of the mixture by heating under an atmosphere of Oxidized at a temperature lower than the melting temperature of the chromium salt to obtain the starting agent. C) The activation of this starter by burning to ash under Under the atmosphere of oxidizing conditions in which at least the One of the chromium changes to hexavalent chromium.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TH33700A true TH33700A (en) | 1999-07-09 |
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