The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 09, 2012
Filed:
Aug. 25, 2008
Virendrakumar Gupta, Maharashtra, IN;
Harshad Ramdas Patil, Maharashtra, IN;
Dhananjay Ghelabhai Naik, Maharashtra, IN;
Virendrakumar Gupta, Maharashtra, IN;
Harshad Ramdas Patil, Maharashtra, IN;
Dhananjay Ghelabhai Naik, Maharashtra, IN;
Reliance Industries Limited, Mumbai, IN;
Abstract
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 TiCland chlorobenzene to form a first stage product, then treating the first stage product with a once used mixed solvent of TiCland 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 TiClOR in the effluent to an addition complex which is precipitated, filtered off and hydrolyzed to recover ethyl benzoate and to form Ti(OH)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.