Processes and apparatus for making detergent range...

Details Processes and apparatus for making detergent range... Processes and apparatus for making detergent range...

2008-09-24

2009-12-29

Dang, Thuan Dinh (Department: 1797)

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

To produce aromatic

C585S470000, C585S455000

Reexamination Certificate

active

07638666

ABSTRACT:
Dialkylbenzenes are transalkylated in the presence of benzene and solid catalyst. The transalkylation product is subjected to distillation to provide a lower-boiling, benzene-containing fraction which is fed to a transalkylation reactor as at least a portion of the benzene. Thus, high benzene to dialkylbenzene molar ratios can be economically maintained in order to enhance catalyst stability.

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