Invention Grant
- Patent Title: Process and apparatus for preparing purified styrene composition from styrene containing feedstock
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Application No.: US17916554Application Date: 2021-05-07
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Publication No.: US11891358B2Publication Date: 2024-02-06
- Inventor: Rahul Khandelwal , Joseph C. Gentry , Randi Wytcherley , Kimberly Anderson , Meta Naulita-Ellis , Claudia Pudack , Celine Rioual , Christoph Kirschner , B. Bryant Slimp , Manfred Stepanski , Erik Temmel
- Applicant: SULZER MANAGEMENT AG
- Applicant Address: CH Winterthur
- Assignee: SULZER MANAGEMENT AG
- Current Assignee: SULZER MANAGEMENT AG
- Current Assignee Address: CH Winterthur
- Agency: GLOBAL IP COUNSELORS, LLP
- Priority: EP 206224 2020.11.06
- International Application: PCT/EP2021/062213 2021.05.07
- International Announcement: WO2021/224487A 2021.11.11
- Date entered country: 2022-09-30
- Main IPC: C07C7/14
- IPC: C07C7/14 ; C07C5/03 ; B01D3/14 ; B01D3/40 ; B01D9/00 ; C07C7/00 ; C07C7/08
Abstract:
A method for preparing a purified styrene composition with a styrene yield of at least 80%. The method comprises providing a crude composition containing styrene, and subjecting the crude composition to at least one crystallization step. The at least one crystallization step comprises at least one static crystallization stage and at least one dynamic crystallization stage.
Public/Granted literature
- US20230174440A1 PROCESS AND APPARATUS FOR PREPARING PURIFIED STYRENE COMPOSITION FROM STYRENE CONTAINING FEEDSTOCK Public/Granted day:2023-06-08
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