Title:
METHOD FOR NITROALKANE RECOVERY BY AQUEOUS PHASE RECYCLE TO NITRATION REACTOR
Document Type and Number:
Japanese Patent JP2015120763
Kind Code:
A
Abstract:
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.
Inventors:
MAHESH SAWANT
DANIEL M TRAUTH
JOHN G PENDERGAST
DANIEL M TRAUTH
JOHN G PENDERGAST
Application Number:
JP2015074960A
Publication Date:
July 02, 2015
Filing Date:
April 01, 2015
Export Citation:
Assignee:
DOW GLOBAL TECHNOLOGIES LLC
ANGUS CHEM CO
ANGUS CHEM CO
International Classes:
C07C201/16; C07C201/08; C07C205/02
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Fukumoto product
Tetsuji Koga
Kazuhiro Nakamura
Yoichi Watanabe
Ryotaro Takei
Takashi Ishida
Fukumoto product
Tetsuji Koga
Kazuhiro Nakamura
Yoichi Watanabe
Ryotaro Takei
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