Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2011-06-21
2011-06-21
Gonzalez, Porfirio Nazario (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
Reexamination Certificate
active
07964745
ABSTRACT:
A synthetic petroleum sulfonate prepared by a process comprising (a) reacting a first amount of at least one aromatic compound with a first amount of a mixture of olefins having from about 8 to about 100 carbon atoms, in the presence of a strong acid catalyst; (b) reacting the product of (a) with an additional amount of at least one aromatic compound and an additional amount of strong acid catalyst and, optionally, with an additional amount of a mixture of olefins selected from olefins having from about 8 to about 100 carbon atoms, in the presence of a strong acid catalyst, wherein the resulting product comprises at least about 80 weight percent of a 1,2,4-trialkylsubstituted aromatic compound; (c) sulfonating the product of (b); and (c) neutralizing the product of (b) with an alkali or alkaline earth, metal hydroxide or ammonia.
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Campbell Curt B.
Sinquin Gilles
Chevron Oronite Company LLC
Gonzalez Porfirio Nazario
Jones Josetta I.
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