Title of Invention

PROCESS FOR PREPARING HYDROTREATING CATALYST COMPOSITION USEFUL FOR DESULFURISATION OF GASOILS

Abstract A process for the preparation of hydrotreating catalyst which comprises of a Group VIB metal and Group VIII metal on an active composite carrier for the removal of sulfur from gas oil feed stocks, wherein the said carrier comprises of a phosphated alumina and an ultra stable Y zeolite and the metal components mostly reside on the alumina, said process comprising the steps of impregnation of chelated metal complex preferentially on to the alumina component of the composite support and subjecting the composite catalyst to a high-speed ball milling. The catalyst obtained by the process of the present invention consists of the active metals in the nanoparticle range (less than 50 Ǻ) while also retaining the zeolite properties of the composite carrier and the catalyst produces less than 50 ppm sulfur from gas oil feed stocks containing greater than 1 wt% sulfur under typical commercial operating conditions.
Full Text

Documents:

357-mum-2003-abstract(10-4-2003).pdf

357-mum-2003-abstract(granted)-(17-6-2009).doc

357-mum-2003-abstract(granted)-(17-6-2009).pdf

357-mum-2003-annexure(7-4-2004).pdf

357-mum-2003-cancelled pages(10-12-2004).pdf

357-mum-2003-cancelled pages(7-4-2004).pdf

357-mum-2003-claims(10-4-2003).doc

357-mum-2003-claims(10-4-2003).pdf

357-mum-2003-claims(amended)-(7-4-2004).pdf

357-mum-2003-claims(granted)-(17-6-2009).doc

357-mum-2003-claims(granted)-(17-6-2009).pdf

357-mum-2003-correspondence(24-4-2007).pdf

357-MUM-2003-CORRESPONDENCE(4-10-2011).pdf

357-mum-2003-correspondence(ipo)-(14-7-2009).pdf

357-mum-2003-correspondence(ipo)-(17-6-2009).pdf

357-mum-2003-description(complete)-(10-4-2003).pdf

357-mum-2003-description(granted)-(17-6-2009).pdf

357-mum-2003-form 1(10-4-2003).pdf

357-mum-2003-form 1(31-7-2003).pdf

357-mum-2003-form 13(9-12-2004).pdf

357-mum-2003-form 19(18-8-2003).pdf

357-mum-2003-form 2(10-4-2003).doc

357-mum-2003-form 2(10-4-2003).pdf

357-mum-2003-form 2(complete)-(10-4-2003).pdf

357-mum-2003-form 2(granted)-(17-6-2009).doc

357-mum-2003-form 2(granted)-(17-6-2009).pdf

357-mum-2003-form 2(title page)-(10-4-2003).pdf

357-mum-2003-form 2(title page)-(granted)-(17-6-2009).pdf

357-mum-2003-form 26(7-4-2004).pdf

357-mum-2003-form 3(10-4-2003).pdf

357-mum-2003-form 3(9-12-2004).pdf

357-mum-2003-form 5(10-4-2003).pdf

357-mum-2003-form 5(31-7-2003).pdf

357-mum-2003-petition under rule 138(9-12-2004).pdf

357-mum-2003-specification(amended)-(10-12-2004).pdf


Patent Number 234838
Indian Patent Application Number 357/MUM/2003
PG Journal Number 28/2009
Publication Date 10-Jul-2009
Grant Date 17-Jun-2009
Date of Filing 10-Apr-2003
Name of Patentee INDIAN OIL CORPORATION LIMITED
Applicant Address G-9, ALI YAVAR JUNG MARG, BANDRA(EAST), MUMBAI-400051.
Inventors:
# Inventor's Name Inventor's Address
1 ALEX CHERU PULIKOTTIL INDIAN OIL CORPORATION LIMITED, G-9, ALI YAVAR JUNG MARG, BANDRA(EAST), MUMBAI-400051.
2 MANORANJAN SANTRA INDIAN OIL CORPORATION LIMITED, G-9, ALI YAVAR JUNG MARG, BANDRA(EAST), MUMBAI-400051.
3 HILLOL BISWAS INDIAN OIL CORPORATION LIMITED, G-9, ALI YAVAR JUNG MARG, BANDRA(EAST), MUMBAI-400051.
4 MANI KARTHIKEYAN INDIAN OIL CORPORATION LIMITED, G-9, ALI YAVAR JUNG MARG, BANDRA(EAST), MUMBAI-400051.
5 DHARMENDRA KUMAR YADAV INDIAN OIL CORPORATION LIMITED, G-9, ALI YAVAR JUNG MARG, BANDRA(EAST), MUMBAI-400051.
6 RAM PRAKASH VERMA INDIAN OIL CORPORATION LIMITED, G-9, ALI YAVAR JUNG MARG, BANDRA(EAST), MUMBAI-400051.
PCT International Classification Number B01J29/16 B01J35/00 C10G45/08 C10G45/12
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA