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Attorney: Patel; Nirav


Number of patents: 8
Last date: September 13, 2011

NumberTitleIssue Date
8017095Mixing device for a down-flow reactor
The present invention provides a novel means to provide more effective mixing of gas and fluids in a height constrained interbed space of a catalytic reactor without increasing pressure drop. In particular, the device improves the effectiveness of an existing mixing...
09/13/2011
7531082High conversion hydroprocessing using multiple pressure and reaction zones
In the refining of crude oil, hydroprocessing units such as hydrotreaters and hydrocrackers are used to remove impurities such as sulfur, nitrogen, and metals from the crude oil. They are also used to convert the feed into valuable products such as naphtha, jet fuel...
05/12/2009
7494961Polyphenolics as lubricant oil additives
A process for preparing an oligomeric phenolic detergent composition comprising contacting an oil soluble alkylphenol with an alkaline earth metal base, an alpha amino acid, and a C1 to C6 aldehyde, in the in the presence of a C2 to ...
02/24/2009
7465835Synthesis of amines using molecular sieve SSZ-75
The present invention relates to new crystalline molecular sieve SSZ-75 having STI topology prepared using a tetramethylene-1,4-bis-(N-methylpyrrolidinium) dication as a structure-directing agent, and its use in catalysts for making amines. ...
12/16/2008
7247742Recycling polyethylene naphthalate containing materials in a process to produce diesters
A process for preparing a dialkylester of a naphthalenedicarboxylic acid comprising directing a liquid phase reaction mixture comprising a low molecular weight alcohol, a naphthalenedicarboxylic acid, a dialkylester of a naphthalenedicarboxylic acid, and a polyethyl...
07/24/2007
7022637Selective methylation catalyst, method of catalyst manufacture and methylation process
Novel catalysts and processes in accordance with the invention can accomplish high selectivity and conversion of naphthalenic compounds such as the conversion of methylnaphthalene (2-MN) or naphthalene to 2,6-dimethylnaphthalene (2,6-DMN). The catalysts are prepared...
04/04/2006
6747171Low temperature purification of naphthalene dicarboxylic acids
A process for purifying a naphthalenic carboxylic acid comprising contacting at a temperature below about 575° F. a mixture comprising an impure naphthalenic carboxylic acid and a solvent in the presence of hydrogen gas with a noble metal on carbon catalyst. The pr...
06/08/2004
6642317Composition based on propylene polymers and process for obtaining same
The present invention provides a composition, which includes: (a) from 10 to 55 parts by weight of a propylene polymer (A) which includes up to 2% by weight of ethylene and having a melt flow index MFI.sub.(A) of 0.1 to 30 g/10 minutes, measured according ...
11/04/2003
 
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