Patent · US Active

Process for producing cumene

US9212107B2 · kind B2 · utility

0Cited by
3References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 2, 2013
Grant dateDec 15, 2015
Priority date—
Expiry dateJul 2, 2033

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C2529/70
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

In a process for producing cumene, isopropanol containing nitrogenous impurities is reacted with benzene in an alkylation reactor to produce an effluent stream comprising cumene, unreacted benzene and water. Water is removed from the effluent stream and an aliquot of the resultant dried effluent stream is treated to remove nitrogenous impurities and produce a purified recycle stream. At least part of the purified recycle stream is then recycled to the alkylation reactor. In an alternative embodiment, the isopropanol is combined with fresh and/or recycled benzene and the combined stream is treated to remove nitrogenous impurities before being fed to the alkylation reactor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.