Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By condensation of entire molecules or entire hydrocarbyl...
Reexamination Certificate
2006-05-09
2006-05-09
Wood, Elizabeth D. (Department: 1755)
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By condensation of entire molecules or entire hydrocarbyl...
C560S030000, C560S032000, C560S033000, C508S198000
Reexamination Certificate
active
07041863
ABSTRACT:
The present invention is directed to a zeolite Y catalyst having a controlled macropore structure. The present invention is also directed to a zeolite Y catalyst composite and a process for preparing the catalyst composite. The catalyst composite exhibits reduced deactivation rates during the alkylation process, thereby increasing the life of the catalyst. The present invention is also directed to processes for the preparation of carbonated, overbased aromatic sulfonates, which processes comprise alkylation, carbonation of aromatic hydrocarbons with one or more olefins.
REFERENCES:
patent: 4123390 (1978-10-01), Sherman et al.
patent: 5118896 (1992-06-01), Steigelmann et al.
Campbell Curt B.
Coent Jean-Louis Le
Harris Thomas V.
Marcantonio Paul J.
Tequi Pierre
Chevron Oronite Company LLC
Chevron Oronite S.A.
Kelley Sarita R.
Wood Elizabeth D.
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