Method for producing cumene, apparatus for producing cumene, and method for producing propylene oxide
AssigneeSumitomo Chemical Company, Limited
InventorShinjiro ISHIHARA
Life of this patent
Estimating the term…
Abstract
A method for producing cumene of the present invention includes steps (e) and (f) below, a cumene conversion step (e): a step of converting cumyl alcohol to cumene to obtain a solution (1) containing cumene, the solution (1) being taken as a flow (1), and a cumene purification step (f): a step of separating the solution (1) of the flow (1) into at least a solution (2) containing purified cumene, and a solution (3) containing 2,3-dimethyl-2,3-diphenylbutane to obtain a flow (2) containing purified cumene and a flow (3) containing 2,3-dimethyl-2,3-diphenylbutane, in which the flow (3) contains 20 wt % or more and 99 wt % or less of acetophenone, and 1 wt % or more and 10 wt % or less of 2,3-dimethyl-2,3-diphenylbutane.
Claims13
A method for producing cumene comprising steps (e) and (f) below,
- a cumene conversion step (e):
- a step of converting cumyl alcohol to cumene to obtain a solution (1) containing cumene, the solution (1) being taken as a flow (1), and
- a cumene purification step (f):
- a step of separating the solution (1) of the flow (1) into at least a solution (2) containing purified cumene, and a solution (3) containing 2,3-dimethyl-2,3-diphenylbutane to obtain a flow (2) containing purified cumene and a flow (3) containing 2,3-dimethyl-2,3-diphenylbutane, wherein
- the flow (3) contains 20 wt % or more and 99 wt % or less of acetophenone, and 1 wt % or more and 10 wt % or less of 2,3-dimethyl-2,3-diphenylbutane.
Dependencies are inferred from the claim text.