Methods for operating polyethylene reactor systems
US-2024392119-A1 · Nov 28, 2024 · US
Method for improving the operability of an olefin polymerization reactor
US9574026B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9574026-B2 |
| Application number | US-201414915063-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 5, 2014 |
| Priority date | Aug 26, 2013 |
| Publication date | Feb 21, 2017 |
| Grant date | Feb 21, 2017 |
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- Title
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Abstract
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The present technology relates to a method of introducing a supported antistatic compound that does not comprise a transition-metal-based catalyst component for use in an olefin polymerization reactor. In some embodiments, the methods disclosed herein avoid the formation of polymer agglomerates in the reactor and minimize potentially negative effects on catalyst yield.
First claim
Opening claim text (preview).
What is claimed is: 1. An olefin polymerization process comprising the steps of: a. contacting an antistatic compound with a support in the absence of a transition-metal-based catalyst component to obtain a supported antistatic compound; b. introducing the supported antistatic compound into a polymerization reactor; and polymerizing an olefin in the polymerization reactor in the presence of a catalyst. 2. The process of claim 1 , wherein the antistatic compound is a hydroxyesters with at least two free hydroxyl groups. 3. The process of claim 2 , wherein the antistatic compound is glycerol monostearate. 4. The process according to claim 1 , wherein the support is silica gel.
Assignees
Inventors
Classifications
- C08F110/02Primary
Ethene · CPC title
Scale prevention in the auxiliary parts · CPC title
Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond · CPC title
Anti-static agent incorporated into the catalyst · CPC title
by addition of a scale inhibitor to the polymerisation medium · CPC title
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Frequently asked questions
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- What does patent US9574026B2 cover?
- The present technology relates to a method of introducing a supported antistatic compound that does not comprise a transition-metal-based catalyst component for use in an olefin polymerization reactor. In some embodiments, the methods disclosed herein avoid the formation of polymer agglomerates in the reactor and minimize potentially negative effects on catalyst yield.
- Who is the assignee on this patent?
- Basell Polyolefine Italia S R L, Basell Poliolefine Italia Srl
- What technology area does this patent fall under?
- Primary CPC classification C08F110/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 21 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).