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Title:
METHOD OF MANUFACTURING 1,3-BUTADIENE AND METHACROLEIN
Document Type and Number:
Japanese Patent JP2013129628
Kind Code:
A
Abstract:

To provide a method for substantially and efficiently manufacturing 1,3-butadiene and methacrolein by going through a specific process, in the manufacture of the 1,3-butadiene and the methacrolein from C4 hydrocarbons, as a raw material, containing n-butene and iso-butene.

A method of manufacturing 1,3-butadiene and methacrolein comprises at least a step (A): a step of causing at least n-butene and iso-butene to react with molecular oxygen at 300-500°C in the presence of an oxidation reaction catalyst thereby to manufacture the 1,3-butadiene and the methacrolein as a reaction product gas, a step (B): a step of bringing the obtained reaction product gas into direct contact with an aqueous medium to separate the gas into a methacrolein aqueous solution and a gas component containing the 1,3-butadiene, a step (C): a step of separating and recovering the methacrolein from the methacrolein aqueous solution obtained in the step (B), and a step (D): a step of separating and recovering the 1,3-butadiene from the gas component obtained in the step (B).


Inventors:
Doi, Takao
Oguri, Motohiro
Application Number:
JP2011000280390
Publication Date:
July 04, 2013
Filing Date:
December 21, 2011
Export Citation:
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Assignee:
TOSOH CORP
International Classes:
C07C5/48; B01J23/88; C07C11/167; C07C45/35; C07C47/22; C07B61/00
Domestic Patent References:
JP2013121559A2013-06-20
JPS5874622A1983-05-06
JPS494441B11974-02-01
JPS52111506A1977-09-19
JPS49126612A1974-12-04
JPS50111017A1975-09-01
JPS53111001A1978-09-28
JP2013121559A2013-06-20
JP5831190B22015-12-09