Method for separating straight-chain conjugated diene
US9944576B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Sep 30, 2015 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Sep 30, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/7022
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a method for selectively separating a straight-chain conjugated diene with high purity from a mixture containing the straight-chain conjugated diene and at least one type of straight-chain olefin. The method involves separating the straight-chain conjugated diene from the mixture containing the straight-chain conjugated diene and the straight-chain olefin using a zeolite membrane composite. The composite contains a porous support and a zeolite layer formed on the surface and in the fine pores of the support, and the zeolite contains an alkali metal cation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.