Patent ID: 9187384
Filing Date: 2015-11-17
Classification: C07C

Abstract:
1. A process comprising: a. contacting an aromatic compound selected from naphthalene, methylnaphthalenes, and other substituted naphthalenes, an alkylating agent, and a catalyst in a suitable reactor to produce an effluent stream comprising an alkylaromatic compound, a monoalkylated product differing from the alkylaromatic compound, unreacted aromatic compound and unreacted alkylating agent; b. heating said effluent stream to between 100 and 250° C.; c. in a stripping device maintained at a vacuum pressure of 5 mmHg to 760 mmHg, stripping said heated effluent stream in the presence of steam, wherein the steam to effluent stream feed ratio is from 0.05 to 1; d. separating a stripping stream from said stripping device, said stripping stream rich in the monoalkylated product, unreacted aromatic compound and unreacted alkylating agent; and e. separating a product stream from said stripping device, said product stream rich in the alkylaromatic compound and further having an unreacted aromatic compound content of less than 0.007 wt %, an unreacted alkylating agent content of less than 0.25 wt %, and a bromine number of 0.4 or less.