US Patent No: 4,691,068

Number of patents in Portfolio can not be more than 2000

Process for production of alkyl aromatics

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An improved process for producing a mono alkyl aromatic by reacting a mono nuclear aromatic compound and an alkylating agent under alkylation conditions to produce the reaction product comprising unreacted mono nuclear aromatic compound, alkane, mono alkyl aromatic, dialkyl aromatic and by-products, treating the reaction product to remove unreacted mono nuclear aromatic compound, free paraffin, and produce a crude product stream containing mono alkyl aromatic, dialkyl aromatic and by-products, separating the majority of the mono alkyl aromatic from the crude product stream to produce a higher boiling fraction containing a minor amount of mono alkyl aromatic, dialkyl aromatic and by-products, and separating the higher boiling fraction into a recycle stream containing mono alkyl aromatic and a by-product stream substantially free of mono alkyl aromatic, and introducing the recycle stream into the alkylation reaction.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SASOL NORTH AMERICA INC.HOUSTON, TX14

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Resh, Kyle W Baltimore, MD 1 8

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Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Mobil Oil Corporation (4)
* 5,107,048 Process for preparing long chain alkyl aromatic compounds employing Lewis acid-promoted amorphous inorganic oxide 6 1990
* 5,030,785 Process for preparing long chain alkyl aromatic compounds employing Lewis acid-promoted zeolite catalysts 17 1990
* 5,043,503 Production of lubricant stocks from polycyclic paraffins 8 1990
* 5,105,042 Sulfated layered titanium oxide catalysts in process for preparing long chain alkyl aromatic compounds 2 1990
 
HUNTSMAN PETROCHEMCIAL CORPORATION (3)
* 5,185,485 Process for preparing alkylbenzene 3 1991
* 6,166,281 Alkylation of benzene to form linear alkylbenzenes using fluorine-containing mordenites 5 1998
* 6,133,492 Alkylation of benzene to form linear alkylbenzenes using fluorine-containing mordenites 8 1998
 
Lummus Crest, Inc. (1)
* 5,003,119 Manufacture of alkylbenzenes 37 1990
* Cited By Examiner