Method for preparing 1,3-butadiene as high yield

US9199895B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9199895-B2
Application numberUS-201113825439-A
CountryUS
Kind codeB2
Filing dateNov 3, 2011
Priority dateJun 30, 2011
Publication dateDec 1, 2015
Grant dateDec 1, 2015

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Abstract

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Disclosed is a method for producing 1,3-butadiene through oxidative dehydrogenation of normal-butene using a parallel reactor in which catalysts are charged into fixed bed reactors and are not physically mixed. More specifically, disclosed is a method for efficiently producing 1,3-butadiene through oxidative dehydrogenation of normal-butene using the parallel reactor containing multi-component bismuth molybdate-based catalysts exhibiting different activities to oxidative dehydrogenation for normal-butene isomers (1-butene, trans-2-butene and cis-2-butene), and butene separated from a C4 mixture containing normal-butene and normal-butane, as a reactant.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method for preparing 1,3-butadiene as a high yield comprising the steps of: a) charging a bismuth molybdate-based multimetal elements oxide catalyst wherein the multimetal elements consist of Mo, Bi, Fe, Co, and Cs as a first catalyst in a first reactor as a first catalyst fixed bed; b) charging a potassium bismuth molybdate-based multimetal elements oxide catalyst wherein the multimetal elements consist of Mo, Bi, Fe, Co, Cs, and K as a second c…

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What does patent US9199895B2 cover?
Disclosed is a method for producing 1,3-butadiene through oxidative dehydrogenation of normal-butene using a parallel reactor in which catalysts are charged into fixed bed reactors and are not physically mixed. More specifically, disclosed is a method for efficiently producing 1,3-butadiene through oxidative dehydrogenation of normal-butene using the parallel reactor containing multi-component …
Who is the assignee on this patent?
Cha Kyong-Yong, Ko Dong-Hyun, Kim Dae-Chul, and 3 more
What technology area does this patent fall under?
Primary CPC classification C07C5/48. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Dec 01 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).