| 摘要 |
PROBLEM TO BE SOLVED: To provide more economical and energy-efficient methods for the manufacture of nitroalkanes.SOLUTION: A method for synthesizing at least one nitroalkane comprises: reacting a hydrocarbon feedstock with aqueous nitric acid in a reactor at a reactor pressure and a reaction temperature, such that a product stream comprising nitrated compounds and byproducts is formed; separating the product stream into at least an oil phase, a gas phase, and an aqueous phase, wherein the oil phase and the aqueous phase contain nitrated compounds; dividing the aqueous phase into a first aqueous stream and a second aqueous stream upstream of an absorber, wherein the first aqueous stream contains 65 to 85% of the aqueous phase; returning the first aqueous stream to the reactor; supplying the second aqueous stream to the absorber; and recovering the at least one nitroalkane from at least one of the oil phase and the second aqueous stream. |
