Method for adsorptive separation of dichlorotoluenes
US4831198A · kind A · utility
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11Claims
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Key dates
| Filing date | Jun 12, 1987 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Jun 12, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/389
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for selectively separating 2,6-dichlorotoluene from a mixture of dichlorotoluene isomers by means of a zeolite adsorber, characterized in that a zeolite selected from the group consisting of ZSM-5 zeolite, ZSM-8 zeolite, ZSM-11 zeolite, ZSM-21 zeolite, ZSM-35 zeolite, Zeta-1 zeolite, Zeta-3 zeolite and TPZ-3 zeolite, is used as the adsorber to selectively separate 2,6-dichlorotoluene as a non-adsorbed component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.