发明名称 |
A PROCESS FOR THE SYNTHESIS OF ALPHA-OLEFIN POLYMERIZATION PROCATALYSTS |
摘要 |
<p>The invention relates to a process for the synthesis of a Ziegler Natta procatalyst, the process comprising first treating magnesium alkoxide with a twice used mixed solvent of TiCl4 and chlorobenzene to form a first stage product, then treating the first stage product with a once used mixed solvent of TiCl4 and chlorobenzene to form a second stage product and finally treating the second stage product with mixed solvent recovered by treatment of effluent from the first treatment with benzoyl chloride so as to convert contaminant of formula TiCl3OR in the effluent to an addition complex which is precipitated, filtered off and hydrolyzed to recover ethyl benzoate and to form Ti(OH)4 as a side product, the product after final treatment being subjected to a plurality of successive washing steps with used as well as recovered hexane.</p> |
申请公布号 |
EP2257576(A4) |
申请公布日期 |
2011.11.23 |
申请号 |
EP20080873373 |
申请日期 |
2008.08.25 |
申请人 |
RELIANCE INDUSTRIES LIMITED |
发明人 |
GUPTA, VIRENDRAKUMAR;PATIL, HARSHAD, RAMDAS;NAIK, DHANANJAY, GHELABHAI |
分类号 |
C08F4/654;C08F4/649;C08F10/00 |
主分类号 |
C08F4/654 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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