Invention Grant
- Patent Title: Method for recovering transition metal tetrahalide and hydrocarbons from a waste stream
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Application No.: US13884623Application Date: 2011-11-11
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Publication No.: US10369491B2Publication Date: 2019-08-06
- Inventor: Mikko Lylykangas , Jukka Räsänen , Klaus Nyfors , Pekka Malinen
- Applicant: Mikko Lylykangas , Jukka Räsänen , Klaus Nyfors , Pekka Malinen
- Applicant Address: AT Vienna
- Assignee: Borealis AG
- Current Assignee: Borealis AG
- Current Assignee Address: AT Vienna
- Agency: Meunier Carlin & Curfman LLC
- Priority: EP10191041 20101112
- International Application: PCT/EP2011/069903 WO 20111111
- International Announcement: WO2012/062892 WO 20120518
- Main IPC: B01D1/22
- IPC: B01D1/22 ; G01G23/02 ; B01D3/14 ; B01D3/28 ; C01G23/02 ; C01G1/06 ; C22B34/12

Abstract:
The present invention provides a process for recovering transition metal tetrahalides from a waste stream coming from a catalyst manufacturing process by (a) establishing a mixed stream comprising transition metal tetrahalide and transition metal alkoxyhalides; (b) forming a falling liquid film from the mixed stream of step (a) at a temperature of from 25 to 85° C. and an absolute pressure of from 0.05 to 0.6 bar; and (c) establishing from the film of step (b) a first vapor stream containing from 90 to 100% of recoverable components and a second liquid stream containing about 10 to 80% of titanium haloalkoxides.
Public/Granted literature
- US20140042010A1 METHOD FOR RECOVERING TRANSITION METAL TETRAHALIDE AND HYDROCARBONS FROM A WASTE STREAM Public/Granted day:2014-02-13
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